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| <div class="subTitle">org.apache.hadoop.hbase.regionserver.wal</div> |
| <h2 title="Class AbstractFSWAL" class="title">Class AbstractFSWAL<W extends <a href="../../../../../../org/apache/hadoop/hbase/wal/WALProvider.WriterBase.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider.WriterBase</a>></h2> |
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| <li>org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL<W></li> |
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| </dl> |
| <dl> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AsyncFSWAL.html" title="class in org.apache.hadoop.hbase.regionserver.wal">AsyncFSWAL</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/FSHLog.html" title="class in org.apache.hadoop.hbase.regionserver.wal">FSHLog</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>@InterfaceAudience.Private |
| public abstract class <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.117">AbstractFSWAL</a><W extends <a href="../../../../../../org/apache/hadoop/hbase/wal/WALProvider.WriterBase.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider.WriterBase</a>> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> |
| implements <a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></pre> |
| <div class="block">Implementation of <a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal"><code>WAL</code></a> to go against <code>FileSystem</code>; i.e. keep WALs in HDFS. Only one |
| WAL is ever being written at a time. When a WAL hits a configured maximum size, it is rolled. |
| This is done internal to the implementation. |
| <p> |
| As data is flushed from the MemStore to other on-disk structures (files sorted by key, hfiles), a |
| WAL becomes obsolete. We can let go of all the log edits/entries for a given HRegion-sequence id. |
| A bunch of work in the below is done keeping account of these region sequence ids -- what is |
| flushed out to hfiles, and what is yet in WAL and in memory only. |
| <p> |
| It is only practical to delete entire files. Thus, we delete an entire on-disk file |
| <code>F</code> when all of the edits in <code>F</code> have a log-sequence-id that's older |
| (smaller) than the most-recent flush. |
| <p> |
| To read an WAL, call |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALFactory.html#createReader-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Path-"><code>WALFactory.createReader(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.fs.Path)</code></a>. * |
| <h2>Failure Semantic</h2> If an exception on append or sync, roll the WAL because the current WAL |
| is now a lame duck; any more appends or syncs will fail also with the same original exception. If |
| we have made successful appends to the WAL and we then are unable to sync them, our current |
| semantic is to return error to the client that the appends failed but also to abort the current |
| context, usually the hosting server. We need to replay the WALs. <br> |
| TODO: Change this semantic. A roll of WAL may be sufficient as long as we have flagged client |
| that the append failed. <br> |
| TODO: replication may pick up these last edits though they have been marked as failed append |
| (Need to keep our own file lengths, not rely on HDFS).</div> |
| </li> |
| </ul> |
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| <h3>Nested Class Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Nested Class Summary table, listing nested classes, and an explanation"> |
| <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Class and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.WalProps.html" title="class in org.apache.hadoop.hbase.regionserver.wal">AbstractFSWAL.WalProps</a></span></code> </td> |
| </tr> |
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| <li class="blockList"><a name="nested.classes.inherited.from.class.org.apache.hadoop.hbase.wal.WAL"> |
| <!-- --> |
| </a> |
| <h3>Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.wal.<a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></h3> |
| <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Entry.html" title="class in org.apache.hadoop.hbase.wal">WAL.Entry</a>, <a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Reader.html" title="interface in org.apache.hadoop.hbase.wal">WAL.Reader</a></code></li> |
| </ul> |
| </li> |
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| <h3>Field Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#blocksize">blocksize</a></span></code> |
| <div class="block">Block size to use writing files.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/ThreadLocal.html?is-external=true" title="class or interface in java.lang">ThreadLocal</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/SyncFuture.html" title="class in org.apache.hadoop.hbase.regionserver.wal">SyncFuture</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#cachedSyncFutures">cachedSyncFutures</a></span></code> |
| <div class="block">Map of <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/SyncFuture.html" title="class in org.apache.hadoop.hbase.regionserver.wal"><code>SyncFuture</code></a>s owned by Thread objects.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#closed">closed</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected org.apache.hadoop.conf.Configuration</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#conf">conf</a></span></code> |
| <div class="block">conf object</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/WALCoprocessorHost.html" title="class in org.apache.hadoop.hbase.regionserver.wal">WALCoprocessorHost</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#coprocessorHost">coprocessorHost</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#DEFAULT_ROLL_ON_SYNC_TIME_MS">DEFAULT_ROLL_ON_SYNC_TIME_MS</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#DEFAULT_SLOW_SYNC_ROLL_INTERVAL_MS">DEFAULT_SLOW_SYNC_ROLL_INTERVAL_MS</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#DEFAULT_SLOW_SYNC_ROLL_THRESHOLD">DEFAULT_SLOW_SYNC_ROLL_THRESHOLD</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#DEFAULT_SLOW_SYNC_TIME_MS">DEFAULT_SLOW_SYNC_TIME_MS</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#DEFAULT_WAL_SYNC_TIMEOUT_MS">DEFAULT_WAL_SYNC_TIMEOUT_MS</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicLong.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicLong</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#filenum">filenum</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected org.apache.hadoop.fs.FileSystem</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#fs">fs</a></span></code> |
| <div class="block">file system instance</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicLong.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicLong</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#highestSyncedTxid">highestSyncedTxid</a></span></code> |
| <div class="block">Updated to the transaction id of the last successful sync call.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#highestUnsyncedTxid">highestUnsyncedTxid</a></span></code> |
| <div class="block">The highest known outstanding unsync'd WALEdit transaction id.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#implClassName">implClassName</a></span></code> |
| <div class="block">The class name of the runtime implementation, used as prefix for logging/tracing.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#lastTimeCheckLowReplication">lastTimeCheckLowReplication</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#lastTimeCheckSlowSync">lastTimeCheckSlowSync</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/WALActionsListener.html" title="interface in org.apache.hadoop.hbase.regionserver.wal">WALActionsListener</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#listeners">listeners</a></span></code> |
| <div class="block">Listeners that are called on WAL events.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static org.slf4j.Logger</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#LOG">LOG</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true" title="class or interface in java.util">Comparator</a><org.apache.hadoop.fs.Path></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#LOG_NAME_COMPARATOR">LOG_NAME_COMPARATOR</a></span></code> |
| <div class="block">WAL Comparator; it compares the timestamp (log filenum), present in the log file name.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#logrollsize">logrollsize</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#MAX_LOGS">MAX_LOGS</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#maxLogs">maxLogs</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#nextLogTooOldNs">nextLogTooOldNs</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicInteger.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicInteger</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#numEntries">numEntries</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected org.apache.hadoop.fs.PathFilter</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#ourFiles">ourFiles</a></span></code> |
| <div class="block">Matches just those wal files that belong to this wal instance.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#prefixPathStr">prefixPathStr</a></span></code> |
| <div class="block">Prefix used when checking for wal membership.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#RING_BUFFER_SLOT_COUNT">RING_BUFFER_SLOT_COUNT</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#ROLL_ON_SYNC_TIME_MS">ROLL_ON_SYNC_TIME_MS</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#rollOnSyncNs">rollOnSyncNs</a></span></code> |
| <div class="block">The slow sync will be logged; the very slow sync will cause the WAL to be rolled.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicBoolean.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicBoolean</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#rollRequested">rollRequested</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/locks/ReentrantLock.html?is-external=true" title="class or interface in java.util.concurrent.locks">ReentrantLock</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#rollWriterLock">rollWriterLock</a></span></code> |
| <div class="block">This lock makes sure only one log roll runs at a time.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/SequenceIdAccounting.html" title="class in org.apache.hadoop.hbase.regionserver.wal">SequenceIdAccounting</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#sequenceIdAccounting">sequenceIdAccounting</a></span></code> |
| <div class="block">Class that does accounting of sequenceids in WAL subsystem.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicBoolean.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicBoolean</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#shutdown">shutdown</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#SLOW_SYNC_ROLL_INTERVAL_MS">SLOW_SYNC_ROLL_INTERVAL_MS</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#SLOW_SYNC_ROLL_THRESHOLD">SLOW_SYNC_ROLL_THRESHOLD</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#SLOW_SYNC_TIME_MS">SLOW_SYNC_TIME_MS</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#slowSyncCheckInterval">slowSyncCheckInterval</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicInteger.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicInteger</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#slowSyncCount">slowSyncCount</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#slowSyncNs">slowSyncNs</a></span></code> |
| <div class="block">The slow sync will be logged; the very slow sync will cause the WAL to be rolled.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#slowSyncRollThreshold">slowSyncRollThreshold</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#SURVIVED_TOO_LONG_LOG_INTERVAL_NS">SURVIVED_TOO_LONG_LOG_INTERVAL_NS</a></span></code> |
| <div class="block">Don't log blocking regions more frequently than this.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#SURVIVED_TOO_LONG_SEC_DEFAULT">SURVIVED_TOO_LONG_SEC_DEFAULT</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#SURVIVED_TOO_LONG_SEC_KEY">SURVIVED_TOO_LONG_SEC_KEY</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicLong.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicLong</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#totalLogSize">totalLogSize</a></span></code> |
| <div class="block">The total size of wal</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#useHsync">useHsync</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#WAL_ROLL_MULTIPLIER">WAL_ROLL_MULTIPLIER</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#WAL_SYNC_TIMEOUT_MS">WAL_SYNC_TIMEOUT_MS</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected org.apache.hadoop.fs.Path</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#walArchiveDir">walArchiveDir</a></span></code> |
| <div class="block">dir path where old logs are kept.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected org.apache.hadoop.fs.Path</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#walDir">walDir</a></span></code> |
| <div class="block">WAL directory, where all WAL files would be placed.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentNavigableMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentNavigableMap</a><org.apache.hadoop.fs.Path,<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.WalProps.html" title="class in org.apache.hadoop.hbase.regionserver.wal">AbstractFSWAL.WalProps</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#walFile2Props">walFile2Props</a></span></code> |
| <div class="block">Map of WAL log file to properties.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#walFilePrefix">walFilePrefix</a></span></code> |
| <div class="block">Prefix of a WAL file, usually the region server name it is hosted on.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#walFileSuffix">walFileSuffix</a></span></code> |
| <div class="block">Suffix included on generated wal file names</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#walSyncTimeoutNs">walSyncTimeoutNs</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#walTooOldNs">walTooOldNs</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html" title="type parameter in AbstractFSWAL">W</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#writer">writer</a></span></code> |
| <div class="block">Current log file.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.summary"> |
| <!-- --> |
| </a> |
| <h3>Constructor Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier</th> |
| <th class="colLast" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#AbstractFSWAL-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Path-java.lang.String-java.lang.String-org.apache.hadoop.conf.Configuration-java.util.List-boolean-java.lang.String-java.lang.String-">AbstractFSWAL</a></span>(org.apache.hadoop.fs.FileSystem fs, |
| org.apache.hadoop.fs.Path rootDir, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> logDir, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> archiveDir, |
| org.apache.hadoop.conf.Configuration conf, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/WALActionsListener.html" title="interface in org.apache.hadoop.hbase.regionserver.wal">WALActionsListener</a>> listeners, |
| boolean failIfWALExists, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> prefix, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> suffix)</code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.summary"> |
| <!-- --> |
| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#abortCacheFlush-byte:A-">abortCacheFlush</a></span>(byte[] encodedRegionName)</code> |
| <div class="block">Abort a cache flush.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>protected abstract long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#append-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.wal.WALKeyImpl-org.apache.hadoop.hbase.wal.WALEdit-boolean-">append</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> info, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALKeyImpl.html" title="class in org.apache.hadoop.hbase.wal">WALKeyImpl</a> key, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALEdit.html" title="class in org.apache.hadoop.hbase.wal">WALEdit</a> edits, |
| boolean inMemstore)</code> |
| <div class="block">Append a set of edits to the WAL.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#appendData-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.wal.WALKeyImpl-org.apache.hadoop.hbase.wal.WALEdit-">appendData</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> info, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALKeyImpl.html" title="class in org.apache.hadoop.hbase.wal">WALKeyImpl</a> key, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALEdit.html" title="class in org.apache.hadoop.hbase.wal">WALEdit</a> edits)</code> |
| <div class="block">Append a set of data edits to the WAL.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#appendEntry-W-org.apache.hadoop.hbase.regionserver.wal.FSWALEntry-">appendEntry</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html" title="type parameter in AbstractFSWAL">W</a> writer, |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/FSWALEntry.html" title="class in org.apache.hadoop.hbase.regionserver.wal">FSWALEntry</a> entry)</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#appendMarker-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.wal.WALKeyImpl-org.apache.hadoop.hbase.wal.WALEdit-">appendMarker</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> info, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALKeyImpl.html" title="class in org.apache.hadoop.hbase.wal">WALKeyImpl</a> key, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALEdit.html" title="class in org.apache.hadoop.hbase.wal">WALEdit</a> edits)</code> |
| <div class="block">Append an operational 'meta' event marker edit to the WAL.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>private void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#archiveLogFile-org.apache.hadoop.fs.Path-">archiveLogFile</a></span>(org.apache.hadoop.fs.Path p)</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#atHeadOfRingBufferEventHandlerAppend--">atHeadOfRingBufferEventHandlerAppend</a></span>()</code> |
| <div class="block">Exposed for testing only.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#blockOnSync-org.apache.hadoop.hbase.regionserver.wal.SyncFuture-">blockOnSync</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/SyncFuture.html" title="class in org.apache.hadoop.hbase.regionserver.wal">SyncFuture</a> syncFuture)</code> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>private int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#calculateMaxLogFiles-org.apache.hadoop.conf.Configuration-long-">calculateMaxLogFiles</a></span>(org.apache.hadoop.conf.Configuration conf, |
| long logRollSize)</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#checkLogLowReplication-long-">checkLogLowReplication</a></span>(long checkInterval)</code> </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>private void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#cleanOldLogs--">cleanOldLogs</a></span>()</code> |
| <div class="block">Archive old logs.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#close--">close</a></span>()</code> |
| <div class="block">Caller no longer needs any edits from this WAL.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#completeCacheFlush-byte:A-long-">completeCacheFlush</a></span>(byte[] encodedRegionName, |
| long maxFlushedSeqId)</code> |
| <div class="block">Complete the cache flush.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>protected org.apache.hadoop.fs.Path</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#computeFilename-long-">computeFilename</a></span>(long filenum)</code> |
| <div class="block">This is a convenience method that computes a new filename with a given file-number.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#convertInterruptedExceptionToIOException-java.lang.InterruptedException-">convertInterruptedExceptionToIOException</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a> ie)</code> </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>protected abstract <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html" title="type parameter in AbstractFSWAL">W</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#createWriterInstance-org.apache.hadoop.fs.Path-">createWriterInstance</a></span>(org.apache.hadoop.fs.Path path)</code> </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>protected abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#doAppend-W-org.apache.hadoop.hbase.regionserver.wal.FSWALEntry-">doAppend</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html" title="type parameter in AbstractFSWAL">W</a> writer, |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/FSWALEntry.html" title="class in org.apache.hadoop.hbase.regionserver.wal">FSWALEntry</a> entry)</code> </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>protected abstract boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#doCheckLogLowReplication--">doCheckLogLowReplication</a></span>()</code> </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#doCheckSlowSync--">doCheckSlowSync</a></span>()</code> </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code>protected abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#doReplaceWriter-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.Path-W-">doReplaceWriter</a></span>(org.apache.hadoop.fs.Path oldPath, |
| org.apache.hadoop.fs.Path newPath, |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html" title="type parameter in AbstractFSWAL">W</a> nextWriter)</code> |
| <div class="block">Notice that you need to clear the <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#rollRequested"><code>rollRequested</code></a> flag in this method, as the new writer |
| will begin to work before returning from this method.</div> |
| </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code>protected abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#doShutdown--">doShutdown</a></span>()</code> </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code>private static <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#ensureIOException-java.lang.Throwable-">ensureIOException</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a> t)</code> </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code>(package private) <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><byte[],<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><byte[]>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#findRegionsToForceFlush--">findRegionsToForceFlush</a></span>()</code> |
| <div class="block">If the number of un-archived WAL files ('live' WALs) is greater than maximum allowed, |
| check the first (oldest) WAL, and return those regions which should be flushed so that |
| it can be let-go/'archived'.</div> |
| </td> |
| </tr> |
| <tr id="i23" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/WALCoprocessorHost.html" title="class in org.apache.hadoop.hbase.regionserver.wal">WALCoprocessorHost</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getCoprocessorHost--">getCoprocessorHost</a></span>()</code> </td> |
| </tr> |
| <tr id="i24" class="altColor"> |
| <td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getCurrentFileName--">getCurrentFileName</a></span>()</code> |
| <div class="block">This is a convenience method that computes a new filename with a given using the current WAL |
| file-number</div> |
| </td> |
| </tr> |
| <tr id="i25" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getEarliestMemStoreSeqNum-byte:A-">getEarliestMemStoreSeqNum</a></span>(byte[] encodedRegionName)</code> |
| <div class="block">Gets the earliest unflushed sequence id in the memstore for the region.</div> |
| </td> |
| </tr> |
| <tr id="i26" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getEarliestMemStoreSeqNum-byte:A-byte:A-">getEarliestMemStoreSeqNum</a></span>(byte[] encodedRegionName, |
| byte[] familyName)</code> |
| <div class="block">Gets the earliest unflushed sequence id in the memstore for the store.</div> |
| </td> |
| </tr> |
| <tr id="i27" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getFilenum--">getFilenum</a></span>()</code> </td> |
| </tr> |
| <tr id="i28" class="altColor"> |
| <td class="colFirst"><code>protected long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getFileNumFromFileName-org.apache.hadoop.fs.Path-">getFileNumFromFileName</a></span>(org.apache.hadoop.fs.Path fileName)</code> |
| <div class="block">A log file has a creation timestamp (in ms) in its file name (<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#filenum"><code>filenum</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i29" class="rowColor"> |
| <td class="colFirst"><code>(package private) org.apache.hadoop.fs.FileStatus[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getFiles--">getFiles</a></span>()</code> |
| <div class="block">Get the backing files associated with this WAL.</div> |
| </td> |
| </tr> |
| <tr id="i30" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getLogFileSize--">getLogFileSize</a></span>()</code> </td> |
| </tr> |
| <tr id="i31" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/OptionalLong.html?is-external=true" title="class or interface in java.util">OptionalLong</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getLogFileSizeIfBeingWritten-org.apache.hadoop.fs.Path-">getLogFileSizeIfBeingWritten</a></span>(org.apache.hadoop.fs.Path path)</code> |
| <div class="block">if the given <code>path</code> is being written currently, then return its length.</div> |
| </td> |
| </tr> |
| <tr id="i32" class="altColor"> |
| <td class="colFirst"><code>(package private) abstract int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getLogReplication--">getLogReplication</a></span>()</code> |
| <div class="block">This method gets the datanode replication count for the current WAL.</div> |
| </td> |
| </tr> |
| <tr id="i33" class="rowColor"> |
| <td class="colFirst"><code>private org.apache.hadoop.fs.Path</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getNewPath--">getNewPath</a></span>()</code> |
| <div class="block">retrieve the next path to use for writing.</div> |
| </td> |
| </tr> |
| <tr id="i34" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getNumLogFiles--">getNumLogFiles</a></span>()</code> </td> |
| </tr> |
| <tr id="i35" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getNumRolledLogFiles--">getNumRolledLogFiles</a></span>()</code> </td> |
| </tr> |
| <tr id="i36" class="altColor"> |
| <td class="colFirst"><code>(package private) org.apache.hadoop.fs.Path</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getOldPath--">getOldPath</a></span>()</code> </td> |
| </tr> |
| <tr id="i37" class="rowColor"> |
| <td class="colFirst"><code>(package private) abstract org.apache.hadoop.hdfs.protocol.DatanodeInfo[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getPipeline--">getPipeline</a></span>()</code> |
| <div class="block">This method gets the pipeline for the current WAL.</div> |
| </td> |
| </tr> |
| <tr id="i38" class="altColor"> |
| <td class="colFirst"><code>protected int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getPreallocatedEventCount--">getPreallocatedEventCount</a></span>()</code> </td> |
| </tr> |
| <tr id="i39" class="rowColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/SyncFuture.html" title="class in org.apache.hadoop.hbase.regionserver.wal">SyncFuture</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getSyncFuture-long-boolean-">getSyncFuture</a></span>(long sequence, |
| boolean forceSync)</code> </td> |
| </tr> |
| <tr id="i40" class="altColor"> |
| <td class="colFirst"><code>(package private) long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getUnflushedEntriesCount--">getUnflushedEntriesCount</a></span>()</code> </td> |
| </tr> |
| <tr id="i41" class="rowColor"> |
| <td class="colFirst"><code>static org.apache.hadoop.fs.Path</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#getWALArchivePath-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.Path-">getWALArchivePath</a></span>(org.apache.hadoop.fs.Path archiveDir, |
| org.apache.hadoop.fs.Path p)</code> </td> |
| </tr> |
| <tr id="i42" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#init--">init</a></span>()</code> |
| <div class="block">Used to initialize the WAL.</div> |
| </td> |
| </tr> |
| <tr id="i43" class="rowColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#isLogRollRequested--">isLogRollRequested</a></span>()</code> </td> |
| </tr> |
| <tr id="i44" class="altColor"> |
| <td class="colFirst"><code>(package private) boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#isUnflushedEntries--">isUnflushedEntries</a></span>()</code> </td> |
| </tr> |
| <tr id="i45" class="rowColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#logRollAndSetupWalProps-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.Path-long-">logRollAndSetupWalProps</a></span>(org.apache.hadoop.fs.Path oldPath, |
| org.apache.hadoop.fs.Path newPath, |
| long oldFileLen)</code> </td> |
| </tr> |
| <tr id="i46" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#main-java.lang.String:A-">main</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[] args)</code> |
| <div class="block">Pass one or more log file names and it will either dump out a text version on |
| <code>stdout</code> or split the specified log files.</div> |
| </td> |
| </tr> |
| <tr id="i47" class="rowColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#postAppend-org.apache.hadoop.hbase.wal.WAL.Entry-long-">postAppend</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Entry.html" title="class in org.apache.hadoop.hbase.wal">WAL.Entry</a> e, |
| long elapsedTime)</code> </td> |
| </tr> |
| <tr id="i48" class="altColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#postSync-long-int-">postSync</a></span>(long timeInNanos, |
| int handlerSyncs)</code> </td> |
| </tr> |
| <tr id="i49" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#registerWALActionsListener-org.apache.hadoop.hbase.regionserver.wal.WALActionsListener-">registerWALActionsListener</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/WALActionsListener.html" title="interface in org.apache.hadoop.hbase.regionserver.wal">WALActionsListener</a> listener)</code> |
| <div class="block">Registers WALActionsListener</div> |
| </td> |
| </tr> |
| <tr id="i50" class="altColor"> |
| <td class="colFirst"><code>(package private) org.apache.hadoop.fs.Path</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#replaceWriter-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.Path-W-">replaceWriter</a></span>(org.apache.hadoop.fs.Path oldPath, |
| org.apache.hadoop.fs.Path newPath, |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html" title="type parameter in AbstractFSWAL">W</a> nextWriter)</code> |
| <div class="block">Cleans up current writer closing it and then puts in place the passed in <code>nextWriter</code>.</div> |
| </td> |
| </tr> |
| <tr id="i51" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#requestLogRoll--">requestLogRoll</a></span>()</code> </td> |
| </tr> |
| <tr id="i52" class="altColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#requestLogRoll-org.apache.hadoop.hbase.regionserver.wal.WALActionsListener.RollRequestReason-">requestLogRoll</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/WALActionsListener.RollRequestReason.html" title="enum in org.apache.hadoop.hbase.regionserver.wal">WALActionsListener.RollRequestReason</a> reason)</code> </td> |
| </tr> |
| <tr id="i53" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><byte[],<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><byte[]>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#rollWriter--">rollWriter</a></span>()</code> |
| <div class="block">Roll the log writer.</div> |
| </td> |
| </tr> |
| <tr id="i54" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><byte[],<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><byte[]>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#rollWriter-boolean-">rollWriter</a></span>(boolean force)</code> |
| <div class="block">Roll the log writer.</div> |
| </td> |
| </tr> |
| <tr id="i55" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#shutdown--">shutdown</a></span>()</code> |
| <div class="block">Stop accepting new writes.</div> |
| </td> |
| </tr> |
| <tr id="i56" class="altColor"> |
| <td class="colFirst"><code>private static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#split-org.apache.hadoop.conf.Configuration-org.apache.hadoop.fs.Path-">split</a></span>(org.apache.hadoop.conf.Configuration conf, |
| org.apache.hadoop.fs.Path p)</code> </td> |
| </tr> |
| <tr id="i57" class="rowColor"> |
| <td class="colFirst"><code>protected long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#stampSequenceIdAndPublishToRingBuffer-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.wal.WALKeyImpl-org.apache.hadoop.hbase.wal.WALEdit-boolean-com.lmax.disruptor.RingBuffer-">stampSequenceIdAndPublishToRingBuffer</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> hri, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALKeyImpl.html" title="class in org.apache.hadoop.hbase.wal">WALKeyImpl</a> key, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALEdit.html" title="class in org.apache.hadoop.hbase.wal">WALEdit</a> edits, |
| boolean inMemstore, |
| com.lmax.disruptor.RingBuffer<<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/RingBufferTruck.html" title="class in org.apache.hadoop.hbase.regionserver.wal">RingBufferTruck</a>> ringBuffer)</code> </td> |
| </tr> |
| <tr id="i58" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#startCacheFlush-byte:A-java.util.Map-">startCacheFlush</a></span>(byte[] encodedRegionName, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><byte[],<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> familyToSeq)</code> </td> |
| </tr> |
| <tr id="i59" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#startCacheFlush-byte:A-java.util.Set-">startCacheFlush</a></span>(byte[] encodedRegionName, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><byte[]> families)</code> |
| <div class="block">WAL keeps track of the sequence numbers that are as yet not flushed im memstores |
| in order to be able to do accounting to figure which WALs can be let go.</div> |
| </td> |
| </tr> |
| <tr id="i60" class="altColor"> |
| <td class="colFirst"><code>private void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#tellListenersAboutPostLogRoll-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.Path-">tellListenersAboutPostLogRoll</a></span>(org.apache.hadoop.fs.Path oldPath, |
| org.apache.hadoop.fs.Path newPath)</code> |
| <div class="block">Tell listeners about post log roll.</div> |
| </td> |
| </tr> |
| <tr id="i61" class="rowColor"> |
| <td class="colFirst"><code>private void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#tellListenersAboutPreLogRoll-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.Path-">tellListenersAboutPreLogRoll</a></span>(org.apache.hadoop.fs.Path oldPath, |
| org.apache.hadoop.fs.Path newPath)</code> |
| <div class="block">Tell listeners about pre log roll.</div> |
| </td> |
| </tr> |
| <tr id="i62" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#toString--">toString</a></span>()</code> |
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| <tr id="i63" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
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| <td class="colFirst"><code>void</code></td> |
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| <div class="block">updates the sequence number of a specific store.</div> |
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| <td class="colFirst"><code>private static void</code></td> |
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| <div class="block">WAL directory, where all WAL files would be placed.</div> |
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| <div class="block">dir path where old logs are kept.</div> |
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| <div class="block">Matches just those wal files that belong to this wal instance.</div> |
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| <div class="block">Prefix of a WAL file, usually the region server name it is hosted on.</div> |
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| <div class="block">Suffix included on generated wal file names</div> |
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| <div class="block">Prefix used when checking for wal membership.</div> |
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| <pre>protected final org.apache.hadoop.conf.Configuration <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.186">conf</a></pre> |
| <div class="block">conf object</div> |
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| <h4>listeners</h4> |
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| <div class="block">Listeners that are called on WAL events.</div> |
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| <div class="block">Class that does accounting of sequenceids in WAL subsystem. Holds oldest outstanding sequence |
| id as yet not flushed as well as the most recent edit sequence id appended to the WAL. Has |
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| <div class="block">The highest known outstanding unsync'd WALEdit transaction id. Usually, we use a queue to pass |
| WALEdit to background consumer thread, and the transaction id is the sequence number of the |
| corresponding entry in queue.</div> |
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| <div class="block">Updated to the transaction id of the last successful sync call. This can be less than |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#highestUnsyncedTxid"><code>highestUnsyncedTxid</code></a> for case where we have an append where a sync has not yet come in |
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| <div class="block">The total size of wal</div> |
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| <pre>private long <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.272">nextLogTooOldNs</a></pre> |
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| <h4>LOG_NAME_COMPARATOR</h4> |
| <pre>final <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true" title="class or interface in java.util">Comparator</a><org.apache.hadoop.fs.Path> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.278">LOG_NAME_COMPARATOR</a></pre> |
| <div class="block">WAL Comparator; it compares the timestamp (log filenum), present in the log file name. Throws |
| an IllegalArgumentException if used to compare paths from different wals.</div> |
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| <div class="block">Map of WAL log file to properties. The map is sorted by the log file creation timestamp |
| (contained in the log file name).</div> |
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| <div class="block">Map of <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/SyncFuture.html" title="class in org.apache.hadoop.hbase.regionserver.wal"><code>SyncFuture</code></a>s owned by Thread objects. Used so we reuse SyncFutures. |
| Thread local is used so JVM can GC the terminated thread for us. See HBASE-21228 |
| <p></div> |
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| <div class="block">The class name of the runtime implementation, used as prefix for logging/tracing. |
| <p> |
| Performance testing shows getClass().getSimpleName() might be a bottleneck so we store it here, |
| refer to HBASE-17676 for more details |
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| <h3>Constructor Detail</h3> |
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| <h4>AbstractFSWAL</h4> |
| <pre>protected <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.379">AbstractFSWAL</a>(org.apache.hadoop.fs.FileSystem fs, |
| org.apache.hadoop.fs.Path rootDir, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> logDir, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> archiveDir, |
| org.apache.hadoop.conf.Configuration conf, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/WALActionsListener.html" title="interface in org.apache.hadoop.hbase.regionserver.wal">WALActionsListener</a>> listeners, |
| boolean failIfWALExists, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> prefix, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> suffix) |
| throws <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/FailedLogCloseException.html" title="class in org.apache.hadoop.hbase.regionserver.wal">FailedLogCloseException</a>, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/FailedLogCloseException.html" title="class in org.apache.hadoop.hbase.regionserver.wal">FailedLogCloseException</a></code></dd> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <h4>getFilenum</h4> |
| <pre>public long <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.332">getFilenum</a>()</pre> |
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| <pre>protected long <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.342">getFileNumFromFileName</a>(org.apache.hadoop.fs.Path fileName)</pre> |
| <div class="block">A log file has a creation timestamp (in ms) in its file name (<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#filenum"><code>filenum</code></a>. This helper |
| method returns the creation timestamp from a given log file. It extracts the timestamp assuming |
| the filename is created with the <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#computeFilename-long-"><code>computeFilename(long filenum)</code></a> method.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>timestamp, as in the log file name.</dd> |
| </dl> |
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| <a name="calculateMaxLogFiles-org.apache.hadoop.conf.Configuration-long-"> |
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| <h4>calculateMaxLogFiles</h4> |
| <pre>private int <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.354">calculateMaxLogFiles</a>(org.apache.hadoop.conf.Configuration conf, |
| long logRollSize)</pre> |
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| <pre>protected final int <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.360">getPreallocatedEventCount</a>()</pre> |
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| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Used to initialize the WAL. Usually just call rollWriter to create the first log writer.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.495">registerWALActionsListener</a>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/WALActionsListener.html" title="interface in org.apache.hadoop.hbase.regionserver.wal">WALActionsListener</a> listener)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#registerWALActionsListener-org.apache.hadoop.hbase.regionserver.wal.WALActionsListener-">WAL</a></code></span></div> |
| <div class="block">Registers WALActionsListener</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#registerWALActionsListener-org.apache.hadoop.hbase.regionserver.wal.WALActionsListener-">registerWALActionsListener</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
| </dl> |
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| <h4>unregisterWALActionsListener</h4> |
| <pre>public boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.500">unregisterWALActionsListener</a>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/WALActionsListener.html" title="interface in org.apache.hadoop.hbase.regionserver.wal">WALActionsListener</a> listener)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#unregisterWALActionsListener-org.apache.hadoop.hbase.regionserver.wal.WALActionsListener-">WAL</a></code></span></div> |
| <div class="block">Unregisters WALActionsListener</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#unregisterWALActionsListener-org.apache.hadoop.hbase.regionserver.wal.WALActionsListener-">unregisterWALActionsListener</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
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| <h4>getCoprocessorHost</h4> |
| <pre>public <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/WALCoprocessorHost.html" title="class in org.apache.hadoop.hbase.regionserver.wal">WALCoprocessorHost</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.505">getCoprocessorHost</a>()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#getCoprocessorHost--">getCoprocessorHost</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Coprocessor host.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="startCacheFlush-byte:A-java.util.Set-"> |
| <!-- --> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>startCacheFlush</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.510">startCacheFlush</a>(byte[] encodedRegionName, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><byte[]> families)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#startCacheFlush-byte:A-java.util.Set-">WAL</a></code></span></div> |
| <div class="block">WAL keeps track of the sequence numbers that are as yet not flushed im memstores |
| in order to be able to do accounting to figure which WALs can be let go. This method tells WAL |
| that some region is about to flush. The flush can be the whole region or for a column family |
| of the region only. |
| |
| <p>Currently, it is expected that the update lock is held for the region; i.e. no |
| concurrent appends while we set up cache flush.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#startCacheFlush-byte:A-java.util.Set-">startCacheFlush</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
| <dd><code>families</code> - Families to flush. May be a subset of all families in the region.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Returns <a href="../../../../../../org/apache/hadoop/hbase/HConstants.html#NO_SEQNUM"><code>HConstants.NO_SEQNUM</code></a> if we are flushing the whole region OR if |
| we are flushing a subset of all families but there are no edits in those families not |
| being flushed; in other words, this is effectively same as a flush of all of the region |
| though we were passed a subset of regions. Otherwise, it returns the sequence id of the |
| oldest/lowest outstanding edit.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#completeCacheFlush-byte:A-long-"><code>WAL.completeCacheFlush(byte[], long)</code></a>, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#abortCacheFlush-byte:A-"><code>WAL.abortCacheFlush(byte[])</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="startCacheFlush-byte:A-java.util.Map-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>startCacheFlush</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.515">startCacheFlush</a>(byte[] encodedRegionName, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><byte[],<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> familyToSeq)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#startCacheFlush-byte:A-java.util.Map-">startCacheFlush</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
| </dl> |
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| </ul> |
| <a name="completeCacheFlush-byte:A-long-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>completeCacheFlush</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.520">completeCacheFlush</a>(byte[] encodedRegionName, |
| long maxFlushedSeqId)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#completeCacheFlush-byte:A-long-">WAL</a></code></span></div> |
| <div class="block">Complete the cache flush.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#completeCacheFlush-byte:A-long-">completeCacheFlush</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>encodedRegionName</code> - Encoded region name.</dd> |
| <dd><code>maxFlushedSeqId</code> - The maxFlushedSeqId for this flush. There is no edit in memory that is |
| less that this sequence id.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#startCacheFlush-byte:A-java.util.Set-"><code>WAL.startCacheFlush(byte[], Set)</code></a>, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#abortCacheFlush-byte:A-"><code>WAL.abortCacheFlush(byte[])</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="abortCacheFlush-byte:A-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>abortCacheFlush</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.525">abortCacheFlush</a>(byte[] encodedRegionName)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#abortCacheFlush-byte:A-">WAL</a></code></span></div> |
| <div class="block">Abort a cache flush. Call if the flush fails. Note that the only recovery |
| for an aborted flush currently is a restart of the regionserver so the |
| snapshot content dropped by the failure gets restored to the memstore.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#abortCacheFlush-byte:A-">abortCacheFlush</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>encodedRegionName</code> - Encoded region name.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getEarliestMemStoreSeqNum-byte:A-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getEarliestMemStoreSeqNum</h4> |
| <pre>public long <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.530">getEarliestMemStoreSeqNum</a>(byte[] encodedRegionName)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#getEarliestMemStoreSeqNum-byte:A-">WAL</a></code></span></div> |
| <div class="block">Gets the earliest unflushed sequence id in the memstore for the region.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#getEarliestMemStoreSeqNum-byte:A-">getEarliestMemStoreSeqNum</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>encodedRegionName</code> - The region to get the number for.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The earliest/lowest/oldest sequence id if present, HConstants.NO_SEQNUM if absent.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getEarliestMemStoreSeqNum-byte:A-byte:A-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getEarliestMemStoreSeqNum</h4> |
| <pre>public long <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.536">getEarliestMemStoreSeqNum</a>(byte[] encodedRegionName, |
| byte[] familyName)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#getEarliestMemStoreSeqNum-byte:A-byte:A-">WAL</a></code></span></div> |
| <div class="block">Gets the earliest unflushed sequence id in the memstore for the store.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#getEarliestMemStoreSeqNum-byte:A-byte:A-">getEarliestMemStoreSeqNum</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>encodedRegionName</code> - The region to get the number for.</dd> |
| <dd><code>familyName</code> - The family to get the number for.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The earliest/lowest/oldest sequence id if present, HConstants.NO_SEQNUM if absent.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="rollWriter--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>rollWriter</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><byte[],<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><byte[]>> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.549">rollWriter</a>() |
| throws <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/FailedLogCloseException.html" title="class in org.apache.hadoop.hbase.regionserver.wal">FailedLogCloseException</a>, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#rollWriter--">WAL</a></code></span></div> |
| <div class="block">Roll the log writer. That is, start writing log messages to a new file. |
| |
| <p/> |
| The implementation is synchronized in order to make sure there's one rollWriter |
| running at any given time.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#rollWriter--">rollWriter</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>If lots of logs, flush the stores of returned regions so next time through we |
| can clean logs. Returns null if nothing to flush. Names are actual |
| region names as returned by <a href="../../../../../../org/apache/hadoop/hbase/client/RegionInfo.html#getEncodedName--"><code>RegionInfo.getEncodedName()</code></a></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/FailedLogCloseException.html" title="class in org.apache.hadoop.hbase.regionserver.wal">FailedLogCloseException</a></code></dd> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="computeFilename-long-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>computeFilename</h4> |
| <pre>protected org.apache.hadoop.fs.Path <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.558">computeFilename</a>(long filenum)</pre> |
| <div class="block">This is a convenience method that computes a new filename with a given file-number.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>filenum</code> - to use</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Path</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getCurrentFileName--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getCurrentFileName</h4> |
| <pre>public org.apache.hadoop.fs.Path <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.571">getCurrentFileName</a>()</pre> |
| <div class="block">This is a convenience method that computes a new filename with a given using the current WAL |
| file-number</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Path</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getNewPath--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getNewPath</h4> |
| <pre>private org.apache.hadoop.fs.Path <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.578">getNewPath</a>() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">retrieve the next path to use for writing. Increments the internal filenum.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getOldPath--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getOldPath</h4> |
| <pre>org.apache.hadoop.fs.Path <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.589">getOldPath</a>()</pre> |
| </li> |
| </ul> |
| <a name="tellListenersAboutPreLogRoll-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.Path-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>tellListenersAboutPreLogRoll</h4> |
| <pre>private void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.602">tellListenersAboutPreLogRoll</a>(org.apache.hadoop.fs.Path oldPath, |
| org.apache.hadoop.fs.Path newPath) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Tell listeners about pre log roll.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="tellListenersAboutPostLogRoll-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.Path-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>tellListenersAboutPostLogRoll</h4> |
| <pre>private void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.616">tellListenersAboutPostLogRoll</a>(org.apache.hadoop.fs.Path oldPath, |
| org.apache.hadoop.fs.Path newPath) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Tell listeners about post log roll.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getNumRolledLogFiles--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getNumRolledLogFiles</h4> |
| <pre>public int <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.629">getNumRolledLogFiles</a>()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the number of rolled log files</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getNumLogFiles--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getNumLogFiles</h4> |
| <pre>public int <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.635">getNumLogFiles</a>()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the number of log files in use</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="findRegionsToForceFlush--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>findRegionsToForceFlush</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><byte[],<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><byte[]>> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.646">findRegionsToForceFlush</a>() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">If the number of un-archived WAL files ('live' WALs) is greater than maximum allowed, |
| check the first (oldest) WAL, and return those regions which should be flushed so that |
| it can be let-go/'archived'.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>stores of regions (encodedRegionNames) to flush in order to archive oldest WAL file.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="cleanOldLogs--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>cleanOldLogs</h4> |
| <pre>private void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.676">cleanOldLogs</a>() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Archive old logs. A WAL is eligible for archiving if all its WALEdits have been flushed.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getWALArchivePath-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.Path-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getWALArchivePath</h4> |
| <pre>public static org.apache.hadoop.fs.Path <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.731">getWALArchivePath</a>(org.apache.hadoop.fs.Path archiveDir, |
| org.apache.hadoop.fs.Path p)</pre> |
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| </ul> |
| <a name="archiveLogFile-org.apache.hadoop.fs.Path-"> |
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| <ul class="blockList"> |
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| <h4>archiveLogFile</h4> |
| <pre>private void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.735">archiveLogFile</a>(org.apache.hadoop.fs.Path p) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
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| <a name="logRollAndSetupWalProps-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.Path-long-"> |
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| <h4>logRollAndSetupWalProps</h4> |
| <pre>protected final void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.755">logRollAndSetupWalProps</a>(org.apache.hadoop.fs.Path oldPath, |
| org.apache.hadoop.fs.Path newPath, |
| long oldFileLen)</pre> |
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| <a name="replaceWriter-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.Path-org.apache.hadoop.hbase.wal.WALProvider.WriterBase-"> |
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| <h4>replaceWriter</h4> |
| <pre>org.apache.hadoop.fs.Path <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.787">replaceWriter</a>(org.apache.hadoop.fs.Path oldPath, |
| org.apache.hadoop.fs.Path newPath, |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html" title="type parameter in AbstractFSWAL">W</a> nextWriter) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Cleans up current writer closing it and then puts in place the passed in <code>nextWriter</code>. |
| <p/> |
| <ul> |
| <li>In the case of creating a new WAL, oldPath will be null.</li> |
| <li>In the case of rolling over from one file to the next, none of the parameters will be null. |
| </li> |
| <li>In the case of closing out this FSHLog with no further use newPath and nextWriter will be |
| null.</li> |
| </ul></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>oldPath</code> - may be null</dd> |
| <dd><code>newPath</code> - may be null</dd> |
| <dd><code>nextWriter</code> - may be null</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the passed in <code>newPath</code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if there is a problem flushing or closing the underlying FS</dd> |
| </dl> |
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| </ul> |
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| <h4>blockOnSync</h4> |
| <pre>protected final void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.794">blockOnSync</a>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/SyncFuture.html" title="class in org.apache.hadoop.hbase.regionserver.wal">SyncFuture</a> syncFuture) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>ensureIOException</h4> |
| <pre>private static <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.818">ensureIOException</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a> t)</pre> |
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| <a name="convertInterruptedExceptionToIOException-java.lang.InterruptedException-"> |
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| <h4>convertInterruptedExceptionToIOException</h4> |
| <pre>private <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.822">convertInterruptedExceptionToIOException</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a> ie)</pre> |
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| <a name="rollWriter-boolean-"> |
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| <h4>rollWriter</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><byte[],<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><byte[]>> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.830">rollWriter</a>(boolean force) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#rollWriter-boolean-">WAL</a></code></span></div> |
| <div class="block">Roll the log writer. That is, start writing log messages to a new file. |
| |
| <p/> |
| The implementation is synchronized in order to make sure there's one rollWriter |
| running at any given time.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#rollWriter-boolean-">rollWriter</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>force</code> - If true, force creation of a new writer even if no entries have |
| been written to the current writer</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>If lots of logs, flush the stores of returned regions so next time through we |
| can clean logs. Returns null if nothing to flush. Names are actual |
| region names as returned by <a href="../../../../../../org/apache/hadoop/hbase/client/RegionInfo.html#getEncodedName--"><code>RegionInfo.getEncodedName()</code></a></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getLogFileSize--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getLogFileSize</h4> |
| <pre>public long <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.877">getLogFileSize</a>()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the size of log files in use</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="requestLogRoll--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>requestLogRoll</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.882">requestLogRoll</a>()</pre> |
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| <a name="getFiles--"> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getFiles</h4> |
| <pre>org.apache.hadoop.fs.FileStatus[] <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.891">getFiles</a>() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Get the backing files associated with this WAL.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>may be null if there are no files.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>shutdown</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.896">shutdown</a>() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#shutdown--">WAL</a></code></span></div> |
| <div class="block">Stop accepting new writes. If we have unsynced writes still in buffer, sync them. |
| Extant edits are left in place in backing storage to be replayed later.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#shutdown--">shutdown</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>close</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.916">close</a>() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#close--">WAL</a></code></span></div> |
| <div class="block">Caller no longer needs any edits from this WAL. Implementers are free to reclaim |
| underlying resources after this call; i.e. filesystem based WALs can archive or |
| delete files.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Closeable.html?is-external=true#close--" title="class or interface in java.io">close</a></code> in interface <code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true#close--" title="class or interface in java.lang">close</a></code> in interface <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang">AutoCloseable</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#close--">close</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="updateStore-byte:A-byte:A-java.lang.Long-boolean-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>updateStore</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.950">updateStore</a>(byte[] encodedRegionName, |
| byte[] familyName, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a> sequenceid, |
| boolean onlyIfGreater)</pre> |
| <div class="block">updates the sequence number of a specific store. depending on the flag: replaces current seq |
| number if the given seq id is bigger, or even if it is lower than existing one</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#updateStore-byte:A-byte:A-java.lang.Long-boolean-">updateStore</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
| </dl> |
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| </ul> |
| <a name="getSyncFuture-long-boolean-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getSyncFuture</h4> |
| <pre>protected final <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/SyncFuture.html" title="class in org.apache.hadoop.hbase.regionserver.wal">SyncFuture</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.955">getSyncFuture</a>(long sequence, |
| boolean forceSync)</pre> |
| </li> |
| </ul> |
| <a name="isLogRollRequested--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isLogRollRequested</h4> |
| <pre>protected boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.959">isLogRollRequested</a>()</pre> |
| </li> |
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| <a name="requestLogRoll-org.apache.hadoop.hbase.regionserver.wal.WALActionsListener.RollRequestReason-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>requestLogRoll</h4> |
| <pre>protected final void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.963">requestLogRoll</a>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/WALActionsListener.RollRequestReason.html" title="enum in org.apache.hadoop.hbase.regionserver.wal">WALActionsListener.RollRequestReason</a> reason)</pre> |
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| <h4>getUnflushedEntriesCount</h4> |
| <pre>long <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.973">getUnflushedEntriesCount</a>()</pre> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isUnflushedEntries</h4> |
| <pre>boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.979">isUnflushedEntries</a>()</pre> |
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| <a name="atHeadOfRingBufferEventHandlerAppend--"> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>atHeadOfRingBufferEventHandlerAppend</h4> |
| <pre>protected void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.987">atHeadOfRingBufferEventHandlerAppend</a>()</pre> |
| <div class="block">Exposed for testing only. Use to tricks like halt the ring buffer appending.</div> |
| </li> |
| </ul> |
| <a name="appendEntry-org.apache.hadoop.hbase.wal.WALProvider.WriterBase-org.apache.hadoop.hbase.regionserver.wal.FSWALEntry-"> |
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| </a><a name="appendEntry-W-org.apache.hadoop.hbase.regionserver.wal.FSWALEntry-"> |
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| <ul class="blockList"> |
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| <h4>appendEntry</h4> |
| <pre>protected final boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.991">appendEntry</a>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html" title="type parameter in AbstractFSWAL">W</a> writer, |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/FSWALEntry.html" title="class in org.apache.hadoop.hbase.regionserver.wal">FSWALEntry</a> entry) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <a name="postAppend-org.apache.hadoop.hbase.wal.WAL.Entry-long-"> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>postAppend</h4> |
| <pre>private long <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1029">postAppend</a>(<a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Entry.html" title="class in org.apache.hadoop.hbase.wal">WAL.Entry</a> e, |
| long elapsedTime) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <a name="postSync-long-int-"> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>postSync</h4> |
| <pre>protected final void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1042">postSync</a>(long timeInNanos, |
| int handlerSyncs)</pre> |
| </li> |
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| <a name="stampSequenceIdAndPublishToRingBuffer-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.wal.WALKeyImpl-org.apache.hadoop.hbase.wal.WALEdit-boolean-com.lmax.disruptor.RingBuffer-"> |
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| <h4>stampSequenceIdAndPublishToRingBuffer</h4> |
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| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALKeyImpl.html" title="class in org.apache.hadoop.hbase.wal">WALKeyImpl</a> key, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALEdit.html" title="class in org.apache.hadoop.hbase.wal">WALEdit</a> edits, |
| boolean inMemstore, |
| com.lmax.disruptor.RingBuffer<<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/RingBufferTruck.html" title="class in org.apache.hadoop.hbase.regionserver.wal">RingBufferTruck</a>> ringBuffer) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="toString--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>toString</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1095">toString</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#toString--">WAL</a></code></span></div> |
| <div class="block">Human readable identifying information about the state of this WAL. |
| Implementors are encouraged to include information appropriate for debugging. |
| Consumers are advised not to rely on the details of the returned String; it does |
| not have a defined structure.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#toString--">toString</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a></code> in class <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getLogFileSizeIfBeingWritten-org.apache.hadoop.fs.Path-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getLogFileSizeIfBeingWritten</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/OptionalLong.html?is-external=true" title="class or interface in java.util">OptionalLong</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1106">getLogFileSizeIfBeingWritten</a>(org.apache.hadoop.fs.Path path)</pre> |
| <div class="block">if the given <code>path</code> is being written currently, then return its length. |
| <p> |
| This is used by replication to prevent replicating unacked log entries. See |
| https://issues.apache.org/jira/browse/HBASE-14004 for more details.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/replication/regionserver/WALFileLengthProvider.html#getLogFileSizeIfBeingWritten-org.apache.hadoop.fs.Path-">getLogFileSizeIfBeingWritten</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/replication/regionserver/WALFileLengthProvider.html" title="interface in org.apache.hadoop.hbase.replication.regionserver">WALFileLengthProvider</a></code></dd> |
| </dl> |
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| </ul> |
| <a name="appendData-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.wal.WALKeyImpl-org.apache.hadoop.hbase.wal.WALEdit-"> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>appendData</h4> |
| <pre>public long <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1122">appendData</a>(<a href="../../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> info, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALKeyImpl.html" title="class in org.apache.hadoop.hbase.wal">WALKeyImpl</a> key, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALEdit.html" title="class in org.apache.hadoop.hbase.wal">WALEdit</a> edits) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#appendData-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.wal.WALKeyImpl-org.apache.hadoop.hbase.wal.WALEdit-">WAL</a></code></span></div> |
| <div class="block">Append a set of data edits to the WAL. 'Data' here means that the content in the edits will |
| also have transitioned through the memstore. |
| <p/> |
| The WAL is not flushed/sync'd after this transaction completes BUT on return this edit must |
| have its region edit/sequence id assigned else it messes up our unification of mvcc and |
| sequenceid. On return <code>key</code> will have the region edit/sequence id filled in.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#appendData-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.wal.WALKeyImpl-org.apache.hadoop.hbase.wal.WALEdit-">appendData</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>info</code> - the regioninfo associated with append</dd> |
| <dd><code>key</code> - Modified by this call; we add to it this edits region edit/sequence id.</dd> |
| <dd><code>edits</code> - Edits to append. MAY CONTAIN NO EDITS for case where we want to get an edit |
| sequence id that is after all currently appended edits.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Returns a 'transaction id' and <code>key</code> will have the region edit/sequence id |
| in it.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#appendMarker-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.wal.WALKeyImpl-org.apache.hadoop.hbase.wal.WALEdit-"><code>WAL.appendMarker(RegionInfo, WALKeyImpl, WALEdit)</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="appendMarker-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.wal.WALKeyImpl-org.apache.hadoop.hbase.wal.WALEdit-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>appendMarker</h4> |
| <pre>public long <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1127">appendMarker</a>(<a href="../../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> info, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALKeyImpl.html" title="class in org.apache.hadoop.hbase.wal">WALKeyImpl</a> key, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALEdit.html" title="class in org.apache.hadoop.hbase.wal">WALEdit</a> edits) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#appendMarker-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.wal.WALKeyImpl-org.apache.hadoop.hbase.wal.WALEdit-">WAL</a></code></span></div> |
| <div class="block">Append an operational 'meta' event marker edit to the WAL. A marker meta edit could |
| be a FlushDescriptor, a compaction marker, or a region event marker; e.g. region open |
| or region close. The difference between a 'marker' append and a 'data' append as in |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#appendData-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.wal.WALKeyImpl-org.apache.hadoop.hbase.wal.WALEdit-"><code>WAL.appendData(RegionInfo, WALKeyImpl, WALEdit)</code></a>is that a marker will not have |
| transitioned through the memstore. |
| <p/> |
| The WAL is not flushed/sync'd after this transaction completes BUT on return this edit must |
| have its region edit/sequence id assigned else it messes up our unification of mvcc and |
| sequenceid. On return <code>key</code> will have the region edit/sequence id filled in.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#appendMarker-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.wal.WALKeyImpl-org.apache.hadoop.hbase.wal.WALEdit-">appendMarker</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>info</code> - the regioninfo associated with append</dd> |
| <dd><code>key</code> - Modified by this call; we add to it this edits region edit/sequence id.</dd> |
| <dd><code>edits</code> - Edits to append. MAY CONTAIN NO EDITS for case where we want to get an edit |
| sequence id that is after all currently appended edits.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Returns a 'transaction id' and <code>key</code> will have the region edit/sequence id |
| in it.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.html#appendData-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.wal.WALKeyImpl-org.apache.hadoop.hbase.wal.WALEdit-"><code>WAL.appendData(RegionInfo, WALKeyImpl, WALEdit)</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="append-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.wal.WALKeyImpl-org.apache.hadoop.hbase.wal.WALEdit-boolean-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>append</h4> |
| <pre>protected abstract long <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1162">append</a>(<a href="../../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> info, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALKeyImpl.html" title="class in org.apache.hadoop.hbase.wal">WALKeyImpl</a> key, |
| <a href="../../../../../../org/apache/hadoop/hbase/wal/WALEdit.html" title="class in org.apache.hadoop.hbase.wal">WALEdit</a> edits, |
| boolean inMemstore) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Append a set of edits to the WAL. |
| <p/> |
| The WAL is not flushed/sync'd after this transaction completes BUT on return this edit must |
| have its region edit/sequence id assigned else it messes up our unification of mvcc and |
| sequenceid. On return <code>key</code> will have the region edit/sequence id filled in. |
| <p/> |
| NOTE: This append, at a time that is usually after this call returns, starts an mvcc |
| transaction by calling 'begin' wherein which we assign this update a sequenceid. At assignment |
| time, we stamp all the passed in Cells inside WALEdit with their sequenceId. You must |
| 'complete' the transaction this mvcc transaction by calling |
| MultiVersionConcurrencyControl#complete(...) or a variant otherwise mvcc will get stuck. Do it |
| in the finally of a try/finally block within which this append lives and any subsequent |
| operations like sync or update of memstore, etc. Get the WriteEntry to pass mvcc out of the |
| passed in WALKey <code>walKey</code> parameter. Be warned that the WriteEntry is not |
| immediately available on return from this method. It WILL be available subsequent to a sync of |
| this append; otherwise, you will just have to wait on the WriteEntry to get filled in.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>info</code> - the regioninfo associated with append</dd> |
| <dd><code>key</code> - Modified by this call; we add to it this edits region edit/sequence id.</dd> |
| <dd><code>edits</code> - Edits to append. MAY CONTAIN NO EDITS for case where we want to get an edit |
| sequence id that is after all currently appended edits.</dd> |
| <dd><code>inMemstore</code> - Always true except for case where we are writing a region event meta |
| marker edit, for example, a compaction completion record into the WAL or noting a |
| Region Open event. In these cases the entry is just so we can finish an unfinished |
| compaction after a crash when the new Server reads the WAL on recovery, etc. These |
| transition event 'Markers' do not go via the memstore. When memstore is false, |
| we presume a Marker event edit.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Returns a 'transaction id' and <code>key</code> will have the region edit/sequence id |
| in it.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="doAppend-org.apache.hadoop.hbase.wal.WALProvider.WriterBase-org.apache.hadoop.hbase.regionserver.wal.FSWALEntry-"> |
| <!-- --> |
| </a><a name="doAppend-W-org.apache.hadoop.hbase.regionserver.wal.FSWALEntry-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>doAppend</h4> |
| <pre>protected abstract void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1165">doAppend</a>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html" title="type parameter in AbstractFSWAL">W</a> writer, |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/FSWALEntry.html" title="class in org.apache.hadoop.hbase.regionserver.wal">FSWALEntry</a> entry) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="createWriterInstance-org.apache.hadoop.fs.Path-"> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createWriterInstance</h4> |
| <pre>protected abstract <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html" title="type parameter in AbstractFSWAL">W</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1167">createWriterInstance</a>(org.apache.hadoop.fs.Path path) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a>, |
| <a href="../../../../../../org/apache/hadoop/hbase/util/CommonFSUtils.StreamLacksCapabilityException.html" title="class in org.apache.hadoop.hbase.util">CommonFSUtils.StreamLacksCapabilityException</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/util/CommonFSUtils.StreamLacksCapabilityException.html" title="class in org.apache.hadoop.hbase.util">CommonFSUtils.StreamLacksCapabilityException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="doReplaceWriter-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.Path-org.apache.hadoop.hbase.wal.WALProvider.WriterBase-"> |
| <!-- --> |
| </a><a name="doReplaceWriter-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.Path-W-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>doReplaceWriter</h4> |
| <pre>protected abstract void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1177">doReplaceWriter</a>(org.apache.hadoop.fs.Path oldPath, |
| org.apache.hadoop.fs.Path newPath, |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html" title="type parameter in AbstractFSWAL">W</a> nextWriter) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Notice that you need to clear the <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#rollRequested"><code>rollRequested</code></a> flag in this method, as the new writer |
| will begin to work before returning from this method. If we clear the flag after returning from |
| this call, we may miss a roll request. The implementation class should choose a proper place to |
| clear the <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#rollRequested"><code>rollRequested</code></a> flag so we do not miss a roll request, typically before you |
| start writing to the new writer.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="doShutdown--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>doShutdown</h4> |
| <pre>protected abstract void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1180">doShutdown</a>() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="doCheckLogLowReplication--"> |
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| <h4>doCheckLogLowReplication</h4> |
| <pre>protected abstract boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1182">doCheckLogLowReplication</a>()</pre> |
| </li> |
| </ul> |
| <a name="doCheckSlowSync--"> |
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| <h4>doCheckSlowSync</h4> |
| <pre>protected boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1188">doCheckSlowSync</a>()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if we exceeded the slow sync roll threshold over the last check |
| interval</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="checkLogLowReplication-long-"> |
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| <h4>checkLogLowReplication</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1219">checkLogLowReplication</a>(long checkInterval)</pre> |
| </li> |
| </ul> |
| <a name="getPipeline--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getPipeline</h4> |
| <pre>abstract org.apache.hadoop.hdfs.protocol.DatanodeInfo[] <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1242">getPipeline</a>()</pre> |
| <div class="block">This method gets the pipeline for the current WAL.</div> |
| </li> |
| </ul> |
| <a name="getLogReplication--"> |
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| <h4>getLogReplication</h4> |
| <pre>abstract int <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1248">getLogReplication</a>()</pre> |
| <div class="block">This method gets the datanode replication count for the current WAL.</div> |
| </li> |
| </ul> |
| <a name="split-org.apache.hadoop.conf.Configuration-org.apache.hadoop.fs.Path-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>split</h4> |
| <pre>private static void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1250">split</a>(org.apache.hadoop.conf.Configuration conf, |
| org.apache.hadoop.fs.Path p) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="usage--"> |
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| </a> |
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| <h4>usage</h4> |
| <pre>private static void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1268">usage</a>()</pre> |
| </li> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>main</h4> |
| <pre>public static void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html#line.1283">main</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[] args) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Pass one or more log file names and it will either dump out a text version on |
| <code>stdout</code> or split the specified log files.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
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