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| <div class="subTitle">org.apache.hadoop.hbase.master</div> |
| <h2 title="Class MasterWalManager" class="title">Class MasterWalManager</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
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| <li> |
| <ul class="inheritance"> |
| <li>org.apache.hadoop.hbase.master.MasterWalManager</li> |
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| <div class="description"> |
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| <br> |
| <pre>@InterfaceAudience.Private |
| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.52">MasterWalManager</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></pre> |
| <div class="block">This class abstracts a bunch of operations the HMaster needs |
| when splitting log files e.g. finding log files, dirs etc.</div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- =========== FIELD SUMMARY =========== --> |
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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>private org.apache.hadoop.conf.Configuration</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#conf">conf</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private org.apache.hadoop.fs.FileSystem</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#fs">fs</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#fsOk">fsOk</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static org.slf4j.Logger</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#LOG">LOG</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>(package private) static org.apache.hadoop.fs.PathFilter</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#META_FILTER">META_FILTER</a></span></code> |
| <div class="block">Filter *in* WAL files that are for the hbase:meta Region.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/master/MetricsMasterFileSystem.html" title="class in org.apache.hadoop.hbase.master">MetricsMasterFileSystem</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#metricsMasterFilesystem">metricsMasterFilesystem</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static org.apache.hadoop.fs.PathFilter</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#NON_META_FILTER">NON_META_FILTER</a></span></code> |
| <div class="block">Filter *out* WAL files that are for the hbase:meta Region; i.e.</div> |
| </td> |
| </tr> |
| <tr 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/master/MasterWalManager.html#oldLogDir">oldLogDir</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <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/master/MasterWalManager.html#rootDir">rootDir</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/master/MasterServices.html" title="interface in org.apache.hadoop.hbase.master">MasterServices</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#services">services</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/locks/Lock.html?is-external=true" title="class or interface in java.util.concurrent.locks">Lock</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#splitLogLock">splitLogLock</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/master/SplitLogManager.html" title="class in org.apache.hadoop.hbase.master">SplitLogManager</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#splitLogManager">splitLogManager</a></span></code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> |
| <div class="block"><span class="deprecationComment">since 2.3.0 and 3.0.0 to be removed in 4.0.0; replaced by <a href="../../../../../org/apache/hadoop/hbase/master/SplitWALManager.html" title="class in org.apache.hadoop.hbase.master"><code>SplitWALManager</code></a>.</span></div> |
| </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="colOne" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#MasterWalManager-org.apache.hadoop.conf.Configuration-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Path-org.apache.hadoop.hbase.master.MasterServices-">MasterWalManager</a></span>(org.apache.hadoop.conf.Configuration conf, |
| org.apache.hadoop.fs.FileSystem fs, |
| org.apache.hadoop.fs.Path rootDir, |
| <a href="../../../../../org/apache/hadoop/hbase/master/MasterServices.html" title="interface in org.apache.hadoop.hbase.master">MasterServices</a> services)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#MasterWalManager-org.apache.hadoop.hbase.master.MasterServices-">MasterWalManager</a></span>(<a href="../../../../../org/apache/hadoop/hbase/master/MasterServices.html" title="interface in org.apache.hadoop.hbase.master">MasterServices</a> services)</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="t2" class="tableTab"><span><a href="javascript:show(2);">Instance 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><span id="t6" class="tableTab"><span><a href="javascript:show(32);">Deprecated 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/master/MasterWalManager.html#archiveMetaLog-org.apache.hadoop.hbase.ServerName-">archiveMetaLog</a></span>(<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a> serverName)</code> |
| <div class="block">The hbase:meta region may OPEN and CLOSE without issue on a server and then move elsewhere.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>private boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#checkFileSystem--">checkFileSystem</a></span>()</code> |
| <div class="block">Checks to see if the file system is still accessible.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><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><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#getFailedServersFromLogFolders--">getFailedServersFromLogFolders</a></span>()</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> |
| <div class="block"><span class="deprecationComment">With proc-v2, we can record the crash server with procedure store, so do not need |
| to scan the wal directory to find out the splitting wal directory any more. Leave |
| it here only because <code>RecoverMetaProcedure</code>(which is also deprecated) uses |
| it.</span></div> |
| </div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>org.apache.hadoop.fs.FileSystem</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#getFileSystem--">getFileSystem</a></span>()</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><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><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#getLiveServersFromWALDir--">getLiveServersFromWALDir</a></span>()</code> |
| <div class="block">Get Servernames that COULD BE 'alive'; excludes those that have a '-splitting' suffix as these |
| are already being split -- they cannot be 'alive'.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>(package private) <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><org.apache.hadoop.fs.Path></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#getLogDirs-java.util.Set-">getLogDirs</a></span>(<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><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>> serverNames)</code> </td> |
| </tr> |
| <tr id="i6" 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/master/MasterWalManager.html#getOldLogDir--">getOldLogDir</a></span>()</code> |
| <div class="block">Get the directory where old logs go</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><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><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#getServerNamesFromWALDirPath-org.apache.hadoop.fs.PathFilter-">getServerNamesFromWALDirPath</a></span>(org.apache.hadoop.fs.PathFilter filter)</code> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>(package private) <a href="../../../../../org/apache/hadoop/hbase/master/SplitLogManager.html" title="class in org.apache.hadoop.hbase.master">SplitLogManager</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#getSplitLogManager--">getSplitLogManager</a></span>()</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><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><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#getSplittingServersFromWALDir--">getSplittingServersFromWALDir</a></span>()</code> |
| <div class="block">Get Servernames which are currently splitting; paths have a '-splitting' suffix.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>org.apache.hadoop.fs.FileStatus[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#getWALDirPaths-org.apache.hadoop.fs.PathFilter-">getWALDirPaths</a></span>(org.apache.hadoop.fs.PathFilter filter)</code> </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/master/MasterWalManager.html#splitLog-org.apache.hadoop.hbase.ServerName-">splitLog</a></span>(<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a> serverName)</code> </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/master/MasterWalManager.html#splitLog-java.util.Set-">splitLog</a></span>(<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><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>> serverNames)</code> </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#splitLog-java.util.Set-org.apache.hadoop.fs.PathFilter-">splitLog</a></span>(<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><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>> serverNames, |
| org.apache.hadoop.fs.PathFilter filter)</code> |
| <div class="block">This method is the base split method that splits WAL files matching a filter.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#splitMetaLog-org.apache.hadoop.hbase.ServerName-">splitMetaLog</a></span>(<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a> serverName)</code> |
| <div class="block">Specialized method to handle the splitting for meta WAL</div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#splitMetaLog-java.util.Set-">splitMetaLog</a></span>(<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><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>> serverNames)</code> |
| <div class="block">Specialized method to handle the splitting for meta WAL</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html#stop--">stop</a></span>()</code> </td> |
| </tr> |
| </table> |
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| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
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| <h3>Methods inherited from class java.lang.<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></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <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>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
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| <pre>static final org.apache.hadoop.fs.PathFilter <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.58">META_FILTER</a></pre> |
| <div class="block">Filter *in* WAL files that are for the hbase:meta Region.</div> |
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| <pre>public static final org.apache.hadoop.fs.PathFilter <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.68">NON_META_FILTER</a></pre> |
| <div class="block">Filter *out* WAL files that are for the hbase:meta Region; i.e. return user-space WALs only.</div> |
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| private final <a href="../../../../../org/apache/hadoop/hbase/master/SplitLogManager.html" title="class in org.apache.hadoop.hbase.master">SplitLogManager</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.99">splitLogManager</a></pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> <span class="deprecationComment">since 2.3.0 and 3.0.0 to be removed in 4.0.0; replaced by <a href="../../../../../org/apache/hadoop/hbase/master/SplitWALManager.html" title="class in org.apache.hadoop.hbase.master"><code>SplitWALManager</code></a>.</span></div> |
| <div class="block">Superceded by <a href="../../../../../org/apache/hadoop/hbase/master/SplitWALManager.html" title="class in org.apache.hadoop.hbase.master"><code>SplitWALManager</code></a>; i.e. procedure-based WAL splitting rather than |
| 'classic' zk-coordinated WAL splitting.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/hadoop/hbase/master/SplitWALManager.html" title="class in org.apache.hadoop.hbase.master"><code>SplitWALManager</code></a></dd> |
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| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.104">MasterWalManager</a>(<a href="../../../../../org/apache/hadoop/hbase/master/MasterServices.html" title="interface in org.apache.hadoop.hbase.master">MasterServices</a> services) |
| 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> |
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| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.109">MasterWalManager</a>(org.apache.hadoop.conf.Configuration conf, |
| org.apache.hadoop.fs.FileSystem fs, |
| org.apache.hadoop.fs.Path rootDir, |
| <a href="../../../../../org/apache/hadoop/hbase/master/MasterServices.html" title="interface in org.apache.hadoop.hbase.master">MasterServices</a> services) |
| 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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| <pre><a href="../../../../../org/apache/hadoop/hbase/master/SplitLogManager.html" title="class in org.apache.hadoop.hbase.master">SplitLogManager</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.125">getSplitLogManager</a>()</pre> |
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| <pre>org.apache.hadoop.fs.Path <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.133">getOldLogDir</a>()</pre> |
| <div class="block">Get the directory where old logs go</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the dir</dd> |
| </dl> |
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| <pre>public org.apache.hadoop.fs.FileSystem <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.137">getFileSystem</a>()</pre> |
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| <pre>private boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.146">checkFileSystem</a>()</pre> |
| <div class="block">Checks to see if the file system is still accessible. |
| If not, sets closed</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>false if file system is not available</dd> |
| </dl> |
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| <h4>getSplittingServersFromWALDir</h4> |
| <pre>public <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><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>> <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.164">getSplittingServersFromWALDir</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 Servernames which are currently splitting; paths have a '-splitting' suffix.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>ServerName</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> - IOException</dd> |
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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">Get Servernames that COULD BE 'alive'; excludes those that have a '-splitting' suffix as these |
| are already being split -- they cannot be 'alive'.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>ServerName</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> - IOException</dd> |
| </dl> |
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| <pre>public <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><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>> <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.183">getServerNamesFromWALDirPath</a>(org.apache.hadoop.fs.PathFilter filter) |
| 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="returnLabel">Returns:</span></dt> |
| <dd>listing of ServerNames found by parsing WAL directory paths in FS.</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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| <pre>public org.apache.hadoop.fs.FileStatus[] <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.200">getWALDirPaths</a>(org.apache.hadoop.fs.PathFilter filter) |
| 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="returnLabel">Returns:</span></dt> |
| <dd>List of all RegionServer WAL dirs; i.e. this.rootDir/HConstants.HREGION_LOGDIR_NAME.</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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| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a> |
| public <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><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>> <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.215">getFailedServersFromLogFolders</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="deprecatedLabel">Deprecated.</span> <span class="deprecationComment">With proc-v2, we can record the crash server with procedure store, so do not need |
| to scan the wal directory to find out the splitting wal directory any more. Leave |
| it here only because <code>RecoverMetaProcedure</code>(which is also deprecated) uses |
| it.</span></div> |
| <div class="block">Inspect the log directory to find dead servers which need recovery work</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A set of ServerNames which aren't running but still have WAL files left in file system</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> |
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| <h4>splitLog</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.281">splitLog</a>(<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a> serverName) |
| 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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| <h4>splitMetaLog</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.289">splitMetaLog</a>(<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a> serverName) |
| 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">Specialized method to handle the splitting for meta WAL</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>serverName</code> - logs belonging to this server will be split</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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| <h4>splitMetaLog</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.297">splitMetaLog</a>(<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><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>> serverNames) |
| 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">Specialized method to handle the splitting for meta WAL</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>serverNames</code> - logs belonging to these servers will be split</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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| <h4>getLogDirs</h4> |
| <pre><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><org.apache.hadoop.fs.Path> <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.304">getLogDirs</a>(<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><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>> serverNames) |
| 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> |
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| <h4>splitLog</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.344">splitLog</a>(<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><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>> serverNames) |
| 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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| <h4>splitLog</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.354">splitLog</a>(<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><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>> serverNames, |
| org.apache.hadoop.fs.PathFilter filter) |
| 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">This method is the base split method that splits WAL files matching a filter. Callers should |
| pass the appropriate filter for meta and non-meta WALs.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>serverNames</code> - logs belonging to these servers will be split; this will rename the log |
| directory out from under a soft-failed server</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> |
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| <h4>archiveMetaLog</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/master/MasterWalManager.html#line.382">archiveMetaLog</a>(<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a> serverName)</pre> |
| <div class="block">The hbase:meta region may OPEN and CLOSE without issue on a server and then move elsewhere. |
| On CLOSE, the WAL for the hbase:meta table may not be archived yet (The WAL is only needed if |
| hbase:meta did not close cleanaly). Since meta region is no long on this server, |
| the ServerCrashProcedure won't split these leftover hbase:meta WALs, just leaving them in |
| the WAL splitting dir. If we try to delete the WAL splitting for the server, it fail since |
| the dir is not totally empty. We can safely archive these hbase:meta log; then the |
| WAL dir can be deleted.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>serverName</code> - the server to archive meta log</dd> |
| </dl> |
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