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| <div class="subTitle">org.apache.hadoop.hbase.regionserver.wal</div> |
| <h2 title="Class ProtobufWALTailingReader" class="title">Class ProtobufWALTailingReader</h2> |
| </div> |
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| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> |
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| <li><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html" title="class in org.apache.hadoop.hbase.regionserver.wal">org.apache.hadoop.hbase.regionserver.wal.AbstractProtobufWALReader</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.hadoop.hbase.regionserver.wal.ProtobufWALTailingReader</li> |
| </ul> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><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>, <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>, <a href="../../../../../../org/apache/hadoop/hbase/wal/AbstractFSWALProvider.Initializer.html" title="interface in org.apache.hadoop.hbase.wal">AbstractFSWALProvider.Initializer</a>, <a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.html" title="interface in org.apache.hadoop.hbase.wal">WALTailingReader</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>@InterfaceAudience.Private |
| public class <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#line.46">ProtobufWALTailingReader</a> |
| extends <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html" title="class in org.apache.hadoop.hbase.regionserver.wal">AbstractProtobufWALReader</a> |
| implements <a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.html" title="interface in org.apache.hadoop.hbase.wal">WALTailingReader</a></pre> |
| <div class="block">A WAL reader for replication. It supports reset so can be used to tail a WAL file which is being |
| written currently.</div> |
| </li> |
| </ul> |
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| <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/ProtobufWALTailingReader.ReadWALKeyResult.html" title="class in org.apache.hadoop.hbase.regionserver.wal">ProtobufWALTailingReader.ReadWALKeyResult</a></span></code> </td> |
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| <li class="blockList"><a name="nested.classes.inherited.from.class.org.apache.hadoop.hbase.wal.WALTailingReader"> |
| <!-- --> |
| </a> |
| <h3>Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.wal.<a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.html" title="interface in org.apache.hadoop.hbase.wal">WALTailingReader</a></h3> |
| <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.Result.html" title="class in org.apache.hadoop.hbase.wal">WALTailingReader.Result</a>, <a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.State.html" title="enum in org.apache.hadoop.hbase.wal">WALTailingReader.State</a></code></li> |
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| <h3>Field Summary</h3> |
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| <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 <a href="../../../../../../org/apache/hadoop/hbase/io/DelegatingInputStream.html" title="class in org.apache.hadoop.hbase.io">DelegatingInputStream</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#delegatingInput">delegatingInput</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.ReadWALKeyResult.html" title="class in org.apache.hadoop.hbase.regionserver.wal">ProtobufWALTailingReader.ReadWALKeyResult</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#KEY_EOF_AND_RESET">KEY_EOF_AND_RESET</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.ReadWALKeyResult.html" title="class in org.apache.hadoop.hbase.regionserver.wal">ProtobufWALTailingReader.ReadWALKeyResult</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#KEY_ERROR_AND_RESET">KEY_ERROR_AND_RESET</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/regionserver/wal/ProtobufWALTailingReader.html#LOG">LOG</a></span></code> </td> |
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| <li class="blockList"><a name="fields.inherited.from.class.org.apache.hadoop.hbase.regionserver.wal.AbstractProtobufWALReader"> |
| <!-- --> |
| </a> |
| <h3>Fields inherited from class org.apache.hadoop.hbase.regionserver.wal.<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html" title="class in org.apache.hadoop.hbase.regionserver.wal">AbstractProtobufWALReader</a></h3> |
| <code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#byteStringUncompressor">byteStringUncompressor</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#cellDecoder">cellDecoder</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#codecClsName">codecClsName</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#compressionCtx">compressionCtx</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#conf">conf</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#decryptor">decryptor</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#DEFAULT_WAL_TRAILER_WARN_SIZE">DEFAULT_WAL_TRAILER_WARN_SIZE</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#fileLength">fileLength</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#fs">fs</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#hasCompression">hasCompression</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#hasTagCompression">hasTagCompression</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#hasValueCompression">hasValueCompression</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#inputStream">inputStream</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#path">path</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#PB_WAL_COMPLETE_MAGIC">PB_WAL_COMPLETE_MAGIC</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#PB_WAL_MAGIC">PB_WAL_MAGIC</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#trailer">trailer</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#trailerPresent">trailerPresent</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#trailerWarnSize">trailerWarnSize</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#valueCompressionType">valueCompressionType</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#WAL_TRAILER_WARN_SIZE">WAL_TRAILER_WARN_SIZE</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#walEditsStopOffset">walEditsStopOffset</a></code></li> |
| </ul> |
| </li> |
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| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.summary"> |
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| <h3>Constructor Summary</h3> |
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| <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/regionserver/wal/ProtobufWALTailingReader.html#ProtobufWALTailingReader--">ProtobufWALTailingReader</a></span>()</code> </td> |
| </tr> |
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| <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></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>private <a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.Result.html" title="class in org.apache.hadoop.hbase.wal">WALTailingReader.Result</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#editEof--">editEof</a></span>()</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.Result.html" title="class in org.apache.hadoop.hbase.wal">WALTailingReader.Result</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#editError--">editError</a></span>()</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#getCellCodecInputStream-org.apache.hadoop.fs.FSDataInputStream-">getCellCodecInputStream</a></span>(org.apache.hadoop.fs.FSDataInputStream stream)</code> |
| <div class="block">Get or create the input stream used by cell decoder.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.Result.html" title="class in org.apache.hadoop.hbase.wal">WALTailingReader.Result</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#next-long-">next</a></span>(long limit)</code> |
| <div class="block">Read the next entry and make sure the position after reading does not go beyond the given |
| <code>limit</code>.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.Result.html" title="class in org.apache.hadoop.hbase.wal">WALTailingReader.Result</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#readWALEdit-org.apache.hadoop.hbase.wal.WAL.Entry-int-">readWALEdit</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Entry.html" title="class in org.apache.hadoop.hbase.wal">WAL.Entry</a> entry, |
| int followingKvCount)</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.ReadWALKeyResult.html" title="class in org.apache.hadoop.hbase.regionserver.wal">ProtobufWALTailingReader.ReadWALKeyResult</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#readWALKey-long-">readWALKey</a></span>(long originalPosition)</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#resetTo-long-boolean-">resetTo</a></span>(long position, |
| boolean resetCompression)</code> |
| <div class="block">Reopen the reader to see if there is new data arrives, and also seek(or skip) to the given |
| position.</div> |
| </td> |
| </tr> |
| <tr id="i7" 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/ProtobufWALTailingReader.html#skipHeader-org.apache.hadoop.fs.FSDataInputStream-">skipHeader</a></span>(org.apache.hadoop.fs.FSDataInputStream stream)</code> </td> |
| </tr> |
| <tr id="i8" 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/ProtobufWALTailingReader.html#skipTo-long-">skipTo</a></span>(long position)</code> |
| <div class="block">Skip to the given position.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <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/ProtobufWALTailingReader.html#unwrapIPBE-java.io.IOException-">unwrapIPBE</a></span>(<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> e)</code> </td> |
| </tr> |
| </table> |
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| <li class="blockList"><a name="methods.inherited.from.class.org.apache.hadoop.hbase.regionserver.wal.AbstractProtobufWALReader"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.hadoop.hbase.regionserver.wal.<a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html" title="class in org.apache.hadoop.hbase.regionserver.wal">AbstractProtobufWALReader</a></h3> |
| <code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#close--">close</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#extractHiddenEof-java.lang.Exception-">extractHiddenEof</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#getCodecClsName--">getCodecClsName</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#getPosition--">getPosition</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#getPositionQuietly--">getPositionQuietly</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#getWriterClsNames--">getWriterClsNames</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#init-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Path-org.apache.hadoop.conf.Configuration-long-">init</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#initWALCellCodec-org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALHeader-java.io.InputStream-">initWALCellCodec</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#isWALTrailer-long-">isWALTrailer</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#open--">open</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#reachWALEditsStopOffset-long-">reachWALEditsStopOffset</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#readHeader-org.apache.hadoop.fs.FSDataInputStream-">readHeader</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#readTrailer-org.apache.hadoop.fs.FSDataInputStream-org.apache.hadoop.fs.FileStatus-">readTrailer</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#trailerSize--">trailerSize</a></code></li> |
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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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| <li class="blockList"><a name="methods.inherited.from.class.org.apache.hadoop.hbase.wal.WALTailingReader"> |
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| <h3>Methods inherited from interface org.apache.hadoop.hbase.wal.<a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.html" title="interface in org.apache.hadoop.hbase.wal">WALTailingReader</a></h3> |
| <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.html#close--">close</a>, <a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.html#getPosition--">getPosition</a></code></li> |
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| <div class="details"> |
| <ul class="blockList"> |
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| <!-- ============ FIELD DETAIL =========== --> |
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| <h3>Field Detail</h3> |
| <a name="LOG"> |
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| <h4>LOG</h4> |
| <pre>private static final org.slf4j.Logger <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#line.49">LOG</a></pre> |
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| <ul class="blockList"> |
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| <h4>delegatingInput</h4> |
| <pre>private <a href="../../../../../../org/apache/hadoop/hbase/io/DelegatingInputStream.html" title="class in org.apache.hadoop.hbase.io">DelegatingInputStream</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#line.51">delegatingInput</a></pre> |
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| <h4>KEY_ERROR_AND_RESET</h4> |
| <pre>private static final <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.ReadWALKeyResult.html" title="class in org.apache.hadoop.hbase.regionserver.wal">ProtobufWALTailingReader.ReadWALKeyResult</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#line.65">KEY_ERROR_AND_RESET</a></pre> |
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| <h4>KEY_EOF_AND_RESET</h4> |
| <pre>private static final <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.ReadWALKeyResult.html" title="class in org.apache.hadoop.hbase.regionserver.wal">ProtobufWALTailingReader.ReadWALKeyResult</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#line.68">KEY_EOF_AND_RESET</a></pre> |
| </li> |
| </ul> |
| </li> |
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| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.detail"> |
| <!-- --> |
| </a> |
| <h3>Constructor Detail</h3> |
| <a name="ProtobufWALTailingReader--"> |
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| <ul class="blockListLast"> |
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| <h4>ProtobufWALTailingReader</h4> |
| <pre>public <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#line.46">ProtobufWALTailingReader</a>()</pre> |
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| <h3>Method Detail</h3> |
| <a name="unwrapIPBE-java.io.IOException-"> |
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| <li class="blockList"> |
| <h4>unwrapIPBE</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/ProtobufWALTailingReader.html#line.71">unwrapIPBE</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> e)</pre> |
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| <h4>readWALKey</h4> |
| <pre>private <a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.ReadWALKeyResult.html" title="class in org.apache.hadoop.hbase.regionserver.wal">ProtobufWALTailingReader.ReadWALKeyResult</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#line.79">readWALKey</a>(long originalPosition)</pre> |
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| <pre>private <a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.Result.html" title="class in org.apache.hadoop.hbase.wal">WALTailingReader.Result</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#line.175">editEof</a>()</pre> |
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| <h4>editError</h4> |
| <pre>private <a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.Result.html" title="class in org.apache.hadoop.hbase.wal">WALTailingReader.Result</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#line.181">editError</a>()</pre> |
| </li> |
| </ul> |
| <a name="readWALEdit-org.apache.hadoop.hbase.wal.WAL.Entry-int-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>readWALEdit</h4> |
| <pre>private <a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.Result.html" title="class in org.apache.hadoop.hbase.wal">WALTailingReader.Result</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#line.187">readWALEdit</a>(<a href="../../../../../../org/apache/hadoop/hbase/wal/WAL.Entry.html" title="class in org.apache.hadoop.hbase.wal">WAL.Entry</a> entry, |
| int followingKvCount)</pre> |
| </li> |
| </ul> |
| <a name="next-long-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>next</h4> |
| <pre>public <a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.Result.html" title="class in org.apache.hadoop.hbase.wal">WALTailingReader.Result</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#line.236">next</a>(long limit)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.html#next-long-">WALTailingReader</a></code></span></div> |
| <div class="block">Read the next entry and make sure the position after reading does not go beyond the given |
| <code>limit</code>. |
| <p/> |
| Notice that we will not throw any checked exception out, all the states are represented by the |
| return value. Of course we will log the exceptions out. The reason why we do this is that, for |
| tailing a WAL file which is currently being written, we will hit EOFException many times, so it |
| should not be considered as an 'exception' and also, creating an Exception is a bit expensive.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.html#next-long-">next</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.html" title="interface in org.apache.hadoop.hbase.wal">WALTailingReader</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>limit</code> - the position limit. See HBASE-14004 for more details about why we need this |
| limitation. -1 means no limit.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="skipHeader-org.apache.hadoop.fs.FSDataInputStream-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>skipHeader</h4> |
| <pre>private void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#line.264">skipHeader</a>(org.apache.hadoop.fs.FSDataInputStream stream) |
| 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="resetTo-long-boolean-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>resetTo</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#line.271">resetTo</a>(long position, |
| boolean resetCompression) |
| 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/WALTailingReader.html#resetTo-long-boolean-">WALTailingReader</a></code></span></div> |
| <div class="block">Reopen the reader to see if there is new data arrives, and also seek(or skip) to the given |
| position. |
| <p/> |
| If you want to read from the beginning instead of a given position, please pass -1 as |
| <code>position</code>, then the reader will locate to the first entry. Notice that, since we have a |
| magic header and a pb header, the first WAL entry is not located at position 0, so passing 0 |
| will cause trouble.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.html#resetTo-long-boolean-">resetTo</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/wal/WALTailingReader.html" title="interface in org.apache.hadoop.hbase.wal">WALTailingReader</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>position</code> - the position we want to start reading from after resetting, or -1 if |
| you want to start reading from the beginning.</dd> |
| <dd><code>resetCompression</code> - whether we also need to clear the compression context. If <code>true</code>, |
| we will use skip instead of seek after resetting.</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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| <a name="getCellCodecInputStream-org.apache.hadoop.fs.FSDataInputStream-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getCellCodecInputStream</h4> |
| <pre>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#line.309">getCellCodecInputStream</a>(org.apache.hadoop.fs.FSDataInputStream stream)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#getCellCodecInputStream-org.apache.hadoop.fs.FSDataInputStream-">AbstractProtobufWALReader</a></code></span></div> |
| <div class="block">Get or create the input stream used by cell decoder. |
| <p/> |
| For implementing replication, we may need to limit the bytes we can read, so here we provide a |
| method so sub classes can wrap the original input stream.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#getCellCodecInputStream-org.apache.hadoop.fs.FSDataInputStream-">getCellCodecInputStream</a></code> in class <code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html" title="class in org.apache.hadoop.hbase.regionserver.wal">AbstractProtobufWALReader</a></code></dd> |
| </dl> |
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| <a name="skipTo-long-"> |
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| <ul class="blockListLast"> |
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| <h4>skipTo</h4> |
| <pre>protected void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/wal/ProtobufWALTailingReader.html#line.315">skipTo</a>(long position) |
| 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 class: <code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#skipTo-long-">AbstractProtobufWALReader</a></code></span></div> |
| <div class="block">Skip to the given position.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html#skipTo-long-">skipTo</a></code> in class <code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/wal/AbstractProtobufWALReader.html" title="class in org.apache.hadoop.hbase.regionserver.wal">AbstractProtobufWALReader</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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