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<h2 title="Interface SplitLogWorkerCoordination" class="title">Interface SplitLogWorkerCoordination</h2>
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<dd><a href="../../../../../org/apache/hadoop/hbase/coordination/ZkSplitLogWorkerCoordination.html" title="class in org.apache.hadoop.hbase.coordination">ZkSplitLogWorkerCoordination</a></dd>
</dl>
<hr>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;
<div class="block"><span class="deprecationComment">since 2.4.0 and in 3.0.0, to be removed in 4.0.0, replaced by procedure-based
distributed WAL splitter, see SplitWALManager</span></div>
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<br>
<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>
@InterfaceAudience.Private
public interface <a href="../../../../../src-html/org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#line.48">SplitLogWorkerCoordination</a></pre>
<div class="block">Coordinated operations for <a href="../../../../../org/apache/hadoop/hbase/regionserver/SplitLogWorker.html" title="class in org.apache.hadoop.hbase.regionserver"><code>SplitLogWorker</code></a> and
<a href="../../../../../org/apache/hadoop/hbase/regionserver/handler/WALSplitterHandler.html" title="class in org.apache.hadoop.hbase.regionserver.handler"><code>WALSplitterHandler</code></a> Important
methods for SplitLogWorker: <BR>
<a href="../../../../../org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#isReady--"><code>isReady()</code></a> called from <a href="../../../../../org/apache/hadoop/hbase/regionserver/SplitLogWorker.html#run--"><code>SplitLogWorker.run()</code></a> to check whether the coordination is
ready to supply the tasks <BR>
<a href="../../../../../org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#taskLoop--"><code>taskLoop()</code></a> loop for new tasks until the worker is stopped <BR>
<a href="../../../../../org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#isStop--"><code>isStop()</code></a> a flag indicates whether worker should finish <BR>
<a href="../../../../../org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#registerListener--"><code>registerListener()</code></a> called from <a href="../../../../../org/apache/hadoop/hbase/regionserver/SplitLogWorker.html#run--"><code>SplitLogWorker.run()</code></a> and could register listener
for external changes in coordination (if required) <BR>
<a href="../../../../../org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#endTask-org.apache.hadoop.hbase.SplitLogTask-java.util.concurrent.atomic.LongAdder-org.apache.hadoop.hbase.coordination.SplitLogWorkerCoordination.SplitTaskDetails-"><code>endTask(SplitLogTask, LongAdder, SplitTaskDetails)</code></a> notify coordination engine that
<p>
Important methods for WALSplitterHandler: <BR>
splitting task has completed.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>static interface&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.SplitTaskDetails.html" title="interface in org.apache.hadoop.hbase.coordination">SplitLogWorkerCoordination.SplitTaskDetails</a></span></code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Interface for log-split tasks Used to carry implementation details in encapsulated way through
Handlers to the coordination API.</div>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t6" class="tableTab"><span><a href="javascript:show(32);">Deprecated Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#endTask-org.apache.hadoop.hbase.SplitLogTask-java.util.concurrent.atomic.LongAdder-org.apache.hadoop.hbase.coordination.SplitLogWorkerCoordination.SplitTaskDetails-">endTask</a></span>(<a href="../../../../../org/apache/hadoop/hbase/SplitLogTask.html" title="class in org.apache.hadoop.hbase">SplitLogTask</a>&nbsp;slt,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/LongAdder.html?is-external=true" title="class or interface in java.util.concurrent.atomic">LongAdder</a>&nbsp;ctr,
<a href="../../../../../org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.SplitTaskDetails.html" title="interface in org.apache.hadoop.hbase.coordination">SplitLogWorkerCoordination.SplitTaskDetails</a>&nbsp;splitTaskDetails)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Notify coordination engine that splitting task has completed.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#getTaskReadySeq--">getTaskReadySeq</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Used by unit tests to check how many tasks were processed</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#init-org.apache.hadoop.hbase.regionserver.RegionServerServices-org.apache.hadoop.conf.Configuration-org.apache.hadoop.hbase.regionserver.SplitLogWorker.TaskExecutor-org.apache.hadoop.hbase.regionserver.SplitLogWorker-">init</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/RegionServerServices.html" title="interface in org.apache.hadoop.hbase.regionserver">RegionServerServices</a>&nbsp;server,
org.apache.hadoop.conf.Configuration&nbsp;conf,
<a href="../../../../../org/apache/hadoop/hbase/regionserver/SplitLogWorker.TaskExecutor.html" title="interface in org.apache.hadoop.hbase.regionserver">SplitLogWorker.TaskExecutor</a>&nbsp;splitTaskExecutor,
<a href="../../../../../org/apache/hadoop/hbase/regionserver/SplitLogWorker.html" title="class in org.apache.hadoop.hbase.regionserver">SplitLogWorker</a>&nbsp;worker)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Initialize internal values.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#isReady--">isReady</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Check whether the log splitter is ready to supply tasks</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#isStop--">isStop</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#markCorrupted-org.apache.hadoop.fs.Path-java.lang.String-org.apache.hadoop.fs.FileSystem-">markCorrupted</a></span>(org.apache.hadoop.fs.Path&nbsp;rootDir,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name,
org.apache.hadoop.fs.FileSystem&nbsp;fs)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">marks log file as corrupted</div>
</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/coordination/SplitLogWorkerCoordination.html#registerListener--">registerListener</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">set the listener for task changes.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#removeListener--">removeListener</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">remove the listener for task changes.</div>
</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/coordination/SplitLogWorkerCoordination.html#stopProcessingTasks--">stopProcessingTasks</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">called when Coordination should stop processing tasks and exit</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#taskLoop--">taskLoop</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Wait for the new tasks and grab one</div>
</td>
</tr>
</table>
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<h3>Method Detail</h3>
<a name="init-org.apache.hadoop.hbase.regionserver.RegionServerServices-org.apache.hadoop.conf.Configuration-org.apache.hadoop.hbase.regionserver.SplitLogWorker.TaskExecutor-org.apache.hadoop.hbase.regionserver.SplitLogWorker-">
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<h4>init</h4>
<pre>void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#line.58">init</a>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/RegionServerServices.html" title="interface in org.apache.hadoop.hbase.regionserver">RegionServerServices</a>&nbsp;server,
org.apache.hadoop.conf.Configuration&nbsp;conf,
<a href="../../../../../org/apache/hadoop/hbase/regionserver/SplitLogWorker.TaskExecutor.html" title="interface in org.apache.hadoop.hbase.regionserver">SplitLogWorker.TaskExecutor</a>&nbsp;splitTaskExecutor,
<a href="../../../../../org/apache/hadoop/hbase/regionserver/SplitLogWorker.html" title="class in org.apache.hadoop.hbase.regionserver">SplitLogWorker</a>&nbsp;worker)</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Initialize internal values. This method should be used when corresponding SplitLogWorker
instance is created</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>server</code> - instance of RegionServerServices to work with</dd>
<dd><code>conf</code> - is current configuration.</dd>
<dd><code>splitTaskExecutor</code> - split executor from SplitLogWorker</dd>
<dd><code>worker</code> - instance of SplitLogWorker</dd>
</dl>
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<h4>stopProcessingTasks</h4>
<pre>void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#line.64">stopProcessingTasks</a>()</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">called when Coordination should stop processing tasks and exit</div>
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<h4>isStop</h4>
<pre>boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#line.69">isStop</a>()</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the current value of exitWorker</dd>
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<h4>taskLoop</h4>
<pre>void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#line.75">taskLoop</a>()
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Wait for the new tasks and grab one</div>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></code> - if the SplitLogWorker was stopped</dd>
</dl>
</li>
</ul>
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<h4>markCorrupted</h4>
<pre>void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#line.83">markCorrupted</a>(org.apache.hadoop.fs.Path&nbsp;rootDir,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name,
org.apache.hadoop.fs.FileSystem&nbsp;fs)</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">marks log file as corrupted</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rootDir</code> - where to find the log</dd>
<dd><code>name</code> - of the log</dd>
<dd><code>fs</code> - file system</dd>
</dl>
</li>
</ul>
<a name="isReady--">
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<h4>isReady</h4>
<pre>boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#line.90">isReady</a>()
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Check whether the log splitter is ready to supply tasks</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>false if there is no tasks</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></code> - if the SplitLogWorker was stopped</dd>
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<h4>getTaskReadySeq</h4>
<pre>int&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#line.96">getTaskReadySeq</a>()</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Used by unit tests to check how many tasks were processed</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>number of tasks</dd>
</dl>
</li>
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<a name="registerListener--">
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<h4>registerListener</h4>
<pre>void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#line.101">registerListener</a>()</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">set the listener for task changes. Implementation specific</div>
</li>
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<a name="removeListener--">
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<h4>removeListener</h4>
<pre>void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#line.106">removeListener</a>()</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">remove the listener for task changes. Implementation specific</div>
</li>
</ul>
<a name="endTask-org.apache.hadoop.hbase.SplitLogTask-java.util.concurrent.atomic.LongAdder-org.apache.hadoop.hbase.coordination.SplitLogWorkerCoordination.SplitTaskDetails-">
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<h4>endTask</h4>
<pre>void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.html#line.117">endTask</a>(<a href="../../../../../org/apache/hadoop/hbase/SplitLogTask.html" title="class in org.apache.hadoop.hbase">SplitLogTask</a>&nbsp;slt,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/LongAdder.html?is-external=true" title="class or interface in java.util.concurrent.atomic">LongAdder</a>&nbsp;ctr,
<a href="../../../../../org/apache/hadoop/hbase/coordination/SplitLogWorkerCoordination.SplitTaskDetails.html" title="interface in org.apache.hadoop.hbase.coordination">SplitLogWorkerCoordination.SplitTaskDetails</a>&nbsp;splitTaskDetails)</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Notify coordination engine that splitting task has completed.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>slt</code> - See <a href="../../../../../org/apache/hadoop/hbase/SplitLogTask.html" title="class in org.apache.hadoop.hbase"><code>SplitLogTask</code></a></dd>
<dd><code>ctr</code> - counter to be updated</dd>
<dd><code>splitTaskDetails</code> - details about log split task (specific to coordination engine being
used).</dd>
</dl>
</li>
</ul>
</li>
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