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<div class="subTitle">org.apache.hadoop.hbase.backup.regionserver</div>
<h2 title="Class LogRollBackupSubprocedure" class="title">Class LogRollBackupSubprocedure</h2>
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<ul class="inheritance">
<li><a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html" title="class in org.apache.hadoop.hbase.procedure">org.apache.hadoop.hbase.procedure.Subprocedure</a></li>
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<ul class="inheritance">
<li>org.apache.hadoop.hbase.backup.regionserver.LogRollBackupSubprocedure</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/Callable.html?is-external=true" title="class or interface in java.util.concurrent">Callable</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Void.html?is-external=true" title="class or interface in java.lang">Void</a>&gt;</dd>
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<pre>@InterfaceAudience.Private
public class <a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#line.45">LogRollBackupSubprocedure</a>
extends <a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html" title="class in org.apache.hadoop.hbase.procedure">Subprocedure</a></pre>
<div class="block">This backup sub-procedure implementation forces a WAL rolling on a RS.</div>
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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>(package private) class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.RSRollLogTask.html" title="class in org.apache.hadoop.hbase.backup.regionserver">LogRollBackupSubprocedure.RSRollLogTask</a></span></code>
<div class="block">Callable task.</div>
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<h3>Nested classes/interfaces inherited from class&nbsp;org.apache.hadoop.hbase.procedure.<a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html" title="class in org.apache.hadoop.hbase.procedure">Subprocedure</a></h3>
<code><a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.SubprocedureImpl.html" title="class in org.apache.hadoop.hbase.procedure">Subprocedure.SubprocedureImpl</a></code></li>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#backupRoot">backupRoot</a></span></code>&nbsp;</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/backup/regionserver/LogRollBackupSubprocedure.html#LOG">LOG</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/regionserver/RegionServerServices.html" title="interface in org.apache.hadoop.hbase.regionserver">RegionServerServices</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#rss">rss</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedurePool.html" title="class in org.apache.hadoop.hbase.backup.regionserver">LogRollBackupSubprocedurePool</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#taskManager">taskManager</a></span></code>&nbsp;</td>
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<h3>Fields inherited from class&nbsp;org.apache.hadoop.hbase.procedure.<a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html" title="class in org.apache.hadoop.hbase.procedure">Subprocedure</a></h3>
<code><a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#executionTimeoutTimer">executionTimeoutTimer</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#monitor">monitor</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#rpcs">rpcs</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#wakeFrequency">wakeFrequency</a></code></li>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#LogRollBackupSubprocedure-org.apache.hadoop.hbase.regionserver.RegionServerServices-org.apache.hadoop.hbase.procedure.ProcedureMember-org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher-long-long-org.apache.hadoop.hbase.backup.regionserver.LogRollBackupSubprocedurePool-byte:A-">LogRollBackupSubprocedure</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/RegionServerServices.html" title="interface in org.apache.hadoop.hbase.regionserver">RegionServerServices</a>&nbsp;rss,
<a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureMember.html" title="class in org.apache.hadoop.hbase.procedure">ProcedureMember</a>&nbsp;member,
<a href="../../../../../../org/apache/hadoop/hbase/errorhandling/ForeignExceptionDispatcher.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignExceptionDispatcher</a>&nbsp;errorListener,
long&nbsp;wakeFrequency,
long&nbsp;timeout,
<a href="../../../../../../org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedurePool.html" title="class in org.apache.hadoop.hbase.backup.regionserver">LogRollBackupSubprocedurePool</a>&nbsp;taskManager,
byte[]&nbsp;data)</code>&nbsp;</td>
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<th class="colFirst" scope="col">Modifier and Type</th>
<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/backup/regionserver/LogRollBackupSubprocedure.html#acquireBarrier--">acquireBarrier</a></span>()</code>
<div class="block">The implementation of this method should gather and hold required resources (locks, disk
space, etc) to satisfy the Procedures barrier condition.</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/backup/regionserver/LogRollBackupSubprocedure.html#cleanup-java.lang.Exception-">cleanup</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a>&nbsp;e)</code>
<div class="block">Cancel threads if they haven't finished.</div>
</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>byte[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#insideBarrier--">insideBarrier</a></span>()</code>
<div class="block">do a log roll.</div>
</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/backup/regionserver/LogRollBackupSubprocedure.html#releaseBarrier--">releaseBarrier</a></span>()</code>
<div class="block">Hooray!</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>private void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#rolllog--">rolllog</a></span>()</code>&nbsp;</td>
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<h3>Methods inherited from class&nbsp;org.apache.hadoop.hbase.procedure.<a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html" title="class in org.apache.hadoop.hbase.procedure">Subprocedure</a></h3>
<code><a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#call--">call</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#cancel-java.lang.String-java.lang.Throwable-">cancel</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#getMemberName--">getMemberName</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#getName--">getName</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#receiveReachedGlobalBarrier--">receiveReachedGlobalBarrier</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#waitForLocallyCompleted--">waitForLocallyCompleted</a></code></li>
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<h3>Methods inherited from class&nbsp;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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<h3>Field Detail</h3>
<a name="LOG">
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<h4>LOG</h4>
<pre>private static final&nbsp;org.slf4j.Logger <a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#line.46">LOG</a></pre>
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<h4>rss</h4>
<pre>private final&nbsp;<a href="../../../../../../org/apache/hadoop/hbase/regionserver/RegionServerServices.html" title="interface in org.apache.hadoop.hbase.regionserver">RegionServerServices</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#line.48">rss</a></pre>
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<a name="taskManager">
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<h4>taskManager</h4>
<pre>private final&nbsp;<a href="../../../../../../org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedurePool.html" title="class in org.apache.hadoop.hbase.backup.regionserver">LogRollBackupSubprocedurePool</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#line.49">taskManager</a></pre>
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<a name="backupRoot">
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<h4>backupRoot</h4>
<pre>private&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#line.50">backupRoot</a></pre>
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<h3>Constructor Detail</h3>
<a name="LogRollBackupSubprocedure-org.apache.hadoop.hbase.regionserver.RegionServerServices-org.apache.hadoop.hbase.procedure.ProcedureMember-org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher-long-long-org.apache.hadoop.hbase.backup.regionserver.LogRollBackupSubprocedurePool-byte:A-">
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<h4>LogRollBackupSubprocedure</h4>
<pre>public&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#line.52">LogRollBackupSubprocedure</a>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/RegionServerServices.html" title="interface in org.apache.hadoop.hbase.regionserver">RegionServerServices</a>&nbsp;rss,
<a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureMember.html" title="class in org.apache.hadoop.hbase.procedure">ProcedureMember</a>&nbsp;member,
<a href="../../../../../../org/apache/hadoop/hbase/errorhandling/ForeignExceptionDispatcher.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignExceptionDispatcher</a>&nbsp;errorListener,
long&nbsp;wakeFrequency,
long&nbsp;timeout,
<a href="../../../../../../org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedurePool.html" title="class in org.apache.hadoop.hbase.backup.regionserver">LogRollBackupSubprocedurePool</a>&nbsp;taskManager,
byte[]&nbsp;data)</pre>
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<h3>Method Detail</h3>
<a name="rolllog--">
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<h4>rolllog</h4>
<pre>private&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#line.128">rolllog</a>()
throws <a href="../../../../../../org/apache/hadoop/hbase/errorhandling/ForeignException.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/hadoop/hbase/errorhandling/ForeignException.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignException</a></code></dd>
</dl>
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<a name="acquireBarrier--">
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<h4>acquireBarrier</h4>
<pre>public&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#line.140">acquireBarrier</a>()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#acquireBarrier--">Subprocedure</a></code></span></div>
<div class="block">The implementation of this method should gather and hold required resources (locks, disk
space, etc) to satisfy the Procedures barrier condition. For example, this would be where
to make all the regions on a RS on the quiescent for an procedure that required all regions
to be globally quiesed.
Users should override this method. If a quiescent is not required, this is overkill but
can still be used to execute a procedure on all members and to propagate any exceptions.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#acquireBarrier--">acquireBarrier</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html" title="class in org.apache.hadoop.hbase.procedure">Subprocedure</a></code></dd>
</dl>
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<h4>insideBarrier</h4>
<pre>public&nbsp;byte[]&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#line.149">insideBarrier</a>()
throws <a href="../../../../../../org/apache/hadoop/hbase/errorhandling/ForeignException.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignException</a></pre>
<div class="block">do a log roll.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#insideBarrier--">insideBarrier</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html" title="class in org.apache.hadoop.hbase.procedure">Subprocedure</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>some bytes</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/hadoop/hbase/errorhandling/ForeignException.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignException</a></code></dd>
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<h4>cleanup</h4>
<pre>public&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#line.158">cleanup</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a>&nbsp;e)</pre>
<div class="block">Cancel threads if they haven't finished.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#cleanup-java.lang.Exception-">cleanup</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html" title="class in org.apache.hadoop.hbase.procedure">Subprocedure</a></code></dd>
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<h4>releaseBarrier</h4>
<pre>public&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html#line.165">releaseBarrier</a>()</pre>
<div class="block">Hooray!</div>
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