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Manage the workers for each + <a href="../../../../../org/apache/hadoop/hbase/master/procedure/SplitWALProcedure.html" title="class in org.apache.hadoop.hbase.master.procedure"><code>SplitWALProcedure</code></a>. + Total number of workers is (number of online servers) * (HBASE_SPLIT_WAL_MAX_SPLITTER). + Helps assign and release workers for split tasks. + Provide helper method to delete split WAL file and directory. + + The user can get the SplitWALProcedures via splitWALs(crashedServer, splitMeta) + can get the files that need to split via getWALsToSplit(crashedServer, splitMeta) + can delete the splitting WAL and directory via deleteSplitWAL(wal) + and deleteSplitWAL(crashedServer) + can check if splitting WALs of a crashed server is success via isSplitWALFinished(walPath) + can acquire and release a worker for splitting WAL via acquireSplitWALWorker(procedure) + and releaseSplitWALWorker(worker, scheduler) + + This class is to replace the zk-based WAL splitting related code, <a href="../../../../../org/apache/hadoop/hbase/master/MasterWalManager.html" title="class in org.apache.hadoop.hbase.master"><code>MasterWalManager</code></a>, + <a href="../../../../../org/apache/hadoop/hbase/master/SplitLogManager.html" title="class in org.apache.hadoop.hbase.master"><code>SplitLogManager</code></a>, <a href="../../../../../org/apache/hadoop/hbase/zookeeper/ZKSplitLog.html" title="class in org.apache.hadoop.hbase.zookeeper"><code>ZKSplitLog</code></a> and + <a href="../../../../../org/apache/hadoop/hbase/coordination/ZKSplitLogManagerCoordination.html" title="class in org.apache.hadoop.hbase.coordination"><code>ZKSplitLogManagerCoordination</code></a> can be removed + after we switch to procedure-based WAL splitting.</div> +</li> +</ul> +</div> +<div class="summary"> +<ul class="blockList"> +<li class="blockList"> +<!-- ======== NESTED CLASS SUMMARY ======== --> +<ul class="blockList"> +<li class="blockList"><a name="nested.class.summary"> +<!-- --> +</a> +<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/master/SplitWALManager.SplitWorkerAssigner.html" title="class in org.apache.hadoop.hbase.master">SplitWALManager.SplitWorkerAssigner</a></span></code> +<div class="block">help assign and release a worker for each WAL splitting task + For each worker, concurrent running splitting task should be no more than maxSplitTasks + If a task failed to acquire a worker, it will suspend and wait for workers available</div> +</td> +</tr> +</table> +</li> +</ul> +<!-- =========== FIELD SUMMARY =========== --> +<ul class="blockList"> +<li class="blockList"><a name="field.summary"> +<!-- --> +</a> +<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/SplitWALManager.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/SplitWALManager.html#fs">fs</a></span></code> </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/master/SplitWALManager.html#LOG">LOG</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/SplitWALManager.html#master">master</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/SplitWALManager.html#rootDir">rootDir</a></span></code> </td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/master/SplitWALManager.SplitWorkerAssigner.html" title="class in org.apache.hadoop.hbase.master">SplitWALManager.SplitWorkerAssigner</a></code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/SplitWALManager.html#splitWorkerAssigner">splitWorkerAssigner</a></span></code> </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/SplitWALManager.html#SplitWALManager-org.apache.hadoop.hbase.master.MasterServices-">SplitWALManager</a></span>(<a href="../../../../../org/apache/hadoop/hbase/master/MasterServices.html" title="interface in org.apache.hadoop.hbase.master">MasterServices</a> master)</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></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><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/SplitWALManager.html#acquireSplitWALWorker-org.apache.hadoop.hbase.procedure2.Procedure-">acquireSplitWALWorker</a></span>(<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?> procedure)</code> +<div class="block">try to acquire an worker from online servers which is executring</div> +</td> +</tr> +<tr id="i1" class="rowColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/SplitWALManager.html#addUsedSplitWALWorker-org.apache.hadoop.hbase.ServerName-">addUsedSplitWALWorker</a></span>(<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a> worker)</code> +<div class="block">When master restart, there will be a new splitWorkerAssigner.</div> +</td> +</tr> +<tr id="i2" class="altColor"> +<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><<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a>></code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/SplitWALManager.html#createSplitWALProcedures-java.util.List-org.apache.hadoop.hbase.ServerName-">createSplitWALProcedures</a></span>(<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.FileStatus> splittingWALs, + <a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a> crashedServer)</code> </td> +</tr> +<tr id="i3" class="rowColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/SplitWALManager.html#deleteSplitWAL-java.lang.String-">deleteSplitWAL</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> wal)</code> </td> +</tr> +<tr id="i4" class="altColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/SplitWALManager.html#deleteWALDir-org.apache.hadoop.hbase.ServerName-">deleteWALDir</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="i5" 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/SplitWALManager.html#getWALSplitDir-org.apache.hadoop.hbase.ServerName-">getWALSplitDir</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="i6" class="altColor"> +<td class="colFirst"><code><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.FileStatus></code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/SplitWALManager.html#getWALsToSplit-org.apache.hadoop.hbase.ServerName-boolean-">getWALsToSplit</a></span>(<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a> serverName, + boolean splitMeta)</code> </td> +</tr> +<tr id="i7" class="rowColor"> +<td class="colFirst"><code>boolean</code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/SplitWALManager.html#isSplitWALFinished-java.lang.String-">isSplitWALFinished</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> walPath)</code> </td> +</tr> +<tr id="i8" class="altColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/SplitWALManager.html#releaseSplitWALWorker-org.apache.hadoop.hbase.ServerName-org.apache.hadoop.hbase.master.procedure.MasterProcedureScheduler-">releaseSplitWALWorker</a></span>(<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a> worker, + <a href="../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureScheduler.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureScheduler</a> scheduler)</code> +<div class="block">After the worker finished the split WAL task, it will release the worker, and wake up all the + suspend procedures in the ProcedureEvent</div> +</td> +</tr> +<tr id="i9" class="rowColor"> +<td class="colFirst"><code><a 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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="deleteWALDir-org.apache.hadoop.hbase.ServerName-"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>deleteWALDir</h4> +<pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/master/SplitWALManager.html#line.123">deleteWALDir</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> +</dl> +</li> +</ul> +<a name="isSplitWALFinished-java.lang.String-"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>isSplitWALFinished</h4> +<pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/master/SplitWALManager.html#line.128">isSplitWALFinished</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> walPath) + 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="createSplitWALProcedures-java.util.List-org.apache.hadoop.hbase.ServerName-"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>createSplitWALProcedures</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><<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a>> <a href="../../../../../src-html/org/apache/hadoop/hbase/master/SplitWALManager.html#line.133">createSplitWALProcedures</a>(<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.FileStatus> splittingWALs, + <a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a> crashedServer)</pre> +</li> +</ul> +<a name="acquireSplitWALWorker-org.apache.hadoop.hbase.procedure2.Procedure-"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>acquireSplitWALWorker</h4> +<pre>public <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/SplitWALManager.html#line.147">acquireSplitWALWorker</a>(<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?> procedure) + throws <a href="../../../../../org/apache/hadoop/hbase/procedure2/ProcedureSuspendedException.html" title="class in org.apache.hadoop.hbase.procedure2">ProcedureSuspendedException</a></pre> +<div class="block">try to acquire an worker from online servers which is executring</div> +<dl> +<dt><span class="paramLabel">Parameters:</span></dt> +<dd><code>procedure</code> - split WAL task</dd> +<dt><span class="returnLabel">Returns:</span></dt> +<dd>an available region server which could execute this task</dd> +<dt><span class="throwsLabel">Throws:</span></dt> +<dd><code><a href="../../../../../org/apache/hadoop/hbase/procedure2/ProcedureSuspendedException.html" title="class in org.apache.hadoop.hbase.procedure2">ProcedureSuspendedException</a></code> - if there is no available worker, + it will throw this exception to let the procedure wait</dd> +</dl> +</li> +</ul> +<a name="releaseSplitWALWorker-org.apache.hadoop.hbase.ServerName-org.apache.hadoop.hbase.master.procedure.MasterProcedureScheduler-"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>releaseSplitWALWorker</h4> +<pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/master/SplitWALManager.html#line.164">releaseSplitWALWorker</a>(<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a> worker, + <a href="../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureScheduler.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureScheduler</a> scheduler)</pre> +<div class="block">After the worker finished the split WAL task, it will release the worker, and wake up all the + suspend procedures in the ProcedureEvent</div> +<dl> +<dt><span class="paramLabel">Parameters:</span></dt> +<dd><code>worker</code> - worker which is about to release</dd> +<dd><code>scheduler</code> - scheduler which is to wake up the procedure event</dd> +</dl> +</li> +</ul> +<a name="addUsedSplitWALWorker-org.apache.hadoop.hbase.ServerName-"> +<!-- --> +</a> +<ul class="blockListLast"> +<li class="blockList"> +<h4>addUsedSplitWALWorker</h4> +<pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/master/SplitWALManager.html#line.177">addUsedSplitWALWorker</a>(<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a> worker)</pre> +<div class="block">When master restart, there will be a new splitWorkerAssigner. But if there are splitting WAL + tasks running on the region server side, they will not be count by the new splitWorkerAssigner. + Thus we should add the workers of running tasks to the assigner when we load the procedures + from MasterProcWALs.</div> +<dl> +<dt><span class="paramLabel">Parameters:</span></dt> +<dd><code>worker</code> - region server which is executing a split WAL task</dd> +</dl> +</li> +</ul> +</li> +</ul> +</li> +</ul> +</div> +</div> +<!-- ========= END OF CLASS DATA ========= --> +<!-- ======= START OF BOTTOM NAVBAR ====== --> +<div class="bottomNav"><a name="navbar.bottom"> +<!-- --> +</a> +<div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div> +<a name="navbar.bottom.firstrow"> +<!-- --> +</a> +<ul class="navList" title="Navigation"> +<li><a href="../../../../../overview-summary.html">Overview</a></li> +<li><a href="package-summary.html">Package</a></li> +<li class="navBarCell1Rev">Class</li> +<li><a href="class-use/SplitWALManager.html">Use</a></li> +<li><a href="package-tree.html">Tree</a></li> +<li><a href="../../../../../deprecated-list.html">Deprecated</a></li> +<li><a href="../../../../../index-all.html">Index</a></li> +<li><a href="../../../../../help-doc.html">Help</a></li> +</ul> +</div> +<div class="subNav"> +<ul class="navList"> +<li><a href="../../../../../org/apache/hadoop/hbase/master/SplitOrMergeTracker.SwitchStateTracker.html" title="class in org.apache.hadoop.hbase.master"><span class="typeNameLink">Prev Class</span></a></li> +<li><a href="../../../../../org/apache/hadoop/hbase/master/SplitWALManager.SplitWorkerAssigner.html" title="class in org.apache.hadoop.hbase.master"><span class="typeNameLink">Next Class</span></a></li> +</ul> +<ul class="navList"> +<li><a href="../../../../../index.html?org/apache/hadoop/hbase/master/SplitWALManager.html" target="_top">Frames</a></li> +<li><a href="SplitWALManager.html" target="_top">No Frames</a></li> +</ul> +<ul class="navList" id="allclasses_navbar_bottom"> +<li><a href="../../../../../allclasses-noframe.html">All Classes</a></li> +</ul> +<div> +<script type="text/javascript"><!-- + allClassesLink = document.getElementById("allclasses_navbar_bottom"); + if(window==top) { + allClassesLink.style.display = "block"; + } + else { + allClassesLink.style.display = "none"; + } + //--> +</script> +</div> +<div> +<ul class="subNavList"> +<li>Summary: </li> +<li><a href="#nested.class.summary">Nested</a> | </li> +<li><a href="#field.summary">Field</a> | </li> +<li><a href="#constructor.summary">Constr</a> | </li> +<li><a href="#method.summary">Method</a></li> +</ul> +<ul class="subNavList"> +<li>Detail: </li> +<li><a href="#field.detail">Field</a> | </li> +<li><a href="#constructor.detail">Constr</a> | </li> +<li><a href="#method.detail">Method</a></li> +</ul> +</div> +<a name="skip.navbar.bottom"> +<!-- --> +</a></div> +<!-- ======== END OF BOTTOM NAVBAR ======= --> +<p class="legalCopy"><small>Copyright © 2007–2019 <a href="https://www.apache.org/">The Apache Software Foundation</a>. 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href="../../../../../../org/apache/hadoop/hbase/master/SplitWALManager.html#master">master</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"><span class="typeNameLabel">SplitWALManager.SplitWorkerAssigner.</span><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/SplitWALManager.SplitWorkerAssigner.html#master">master</a></span></code> </td> +</tr> +<tr class="altColor"> +<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"><span class="typeNameLabel">ServerManager.</span><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/ServerManager.html#master">master</a></span></code> </td> </tr> <tr class="rowColor"> @@ -458,6 +466,13 @@ </td> </tr> <tr class="rowColor"> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/SplitWALManager.html#SplitWALManager-org.apache.hadoop.hbase.master.MasterServices-">SplitWALManager</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/MasterServices.html" title="interface in org.apache.hadoop.hbase.master">MasterServices</a> master)</code> </td> +</tr> +<tr class="altColor"> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/SplitWALManager.SplitWorkerAssigner.html#SplitWorkerAssigner-org.apache.hadoop.hbase.master.MasterServices-int-">SplitWorkerAssigner</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/MasterServices.html" title="interface in org.apache.hadoop.hbase.master">MasterServices</a> master, + int maxSplitTasks)</code> </td> +</tr> +<tr class="rowColor"> <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/TableNamespaceManager.html#TableNamespaceManager-org.apache.hadoop.hbase.master.MasterServices-">TableNamespaceManager</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/MasterServices.html" title="interface in org.apache.hadoop.hbase.master">MasterServices</a> masterServices)</code> </td> </tr> <tr class="altColor"> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/901d593a/devapidocs/org/apache/hadoop/hbase/master/class-use/ServerListener.html ---------------------------------------------------------------------- diff --git a/devapidocs/org/apache/hadoop/hbase/master/class-use/ServerListener.html b/devapidocs/org/apache/hadoop/hbase/master/class-use/ServerListener.html index db293a3..b7d1cf4 100644 --- a/devapidocs/org/apache/hadoop/hbase/master/class-use/ServerListener.html +++ b/devapidocs/org/apache/hadoop/hbase/master/class-use/ServerListener.html @@ -103,6 +103,23 @@ <!-- --> </a> <h3>Uses of <a href="../../../../../../org/apache/hadoop/hbase/master/ServerListener.html" title="interface in org.apache.hadoop.hbase.master">ServerListener</a> in <a href="../../../../../../org/apache/hadoop/hbase/master/package-summary.html">org.apache.hadoop.hbase.master</a></h3> +<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing classes, and an explanation"> +<caption><span>Classes in <a href="../../../../../../org/apache/hadoop/hbase/master/package-summary.html">org.apache.hadoop.hbase.master</a> that implement <a href="../../../../../../org/apache/hadoop/hbase/master/ServerListener.html" title="interface in org.apache.hadoop.hbase.master">ServerListener</a></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> +<tbody> +<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/master/SplitWALManager.SplitWorkerAssigner.html" title="class in org.apache.hadoop.hbase.master">SplitWALManager.SplitWorkerAssigner</a></span></code> +<div class="block">help assign and release a worker for each WAL splitting task + For each worker, concurrent running splitting task should be no more than maxSplitTasks + If a task failed to acquire a worker, it will suspend and wait for workers available</div> +</td> +</tr> +</tbody> +</table> <table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing fields, and an explanation"> <caption><span>Fields in <a 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