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<div class="subTitle">org.apache.hadoop.mapred</div>
<h2 title="Class TaskAttemptListenerImpl" class="title">Class TaskAttemptListenerImpl</h2>
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<ul class="inheritance">
<li>org.apache.hadoop.service.AbstractService</li>
<li>
<ul class="inheritance">
<li>org.apache.hadoop.service.CompositeService</li>
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<ul class="inheritance">
<li>org.apache.hadoop.mapred.TaskAttemptListenerImpl</li>
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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>, org.apache.hadoop.ipc.VersionedProtocol, org.apache.hadoop.mapred.TaskUmbilicalProtocol, <a href="../../../../org/apache/hadoop/mapreduce/v2/app/TaskAttemptListener.html" title="interface in org.apache.hadoop.mapreduce.v2.app">TaskAttemptListener</a>, org.apache.hadoop.service.Service</dd>
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<pre>public class <span class="typeNameLabel">TaskAttemptListenerImpl</span>
extends org.apache.hadoop.service.CompositeService
implements org.apache.hadoop.mapred.TaskUmbilicalProtocol, <a href="../../../../org/apache/hadoop/mapreduce/v2/app/TaskAttemptListener.html" title="interface in org.apache.hadoop.mapreduce.v2.app">TaskAttemptListener</a></pre>
<div class="block">This class is responsible for talking to the task umblical.
It also converts all the old data structures
to yarn data structures.
This class HAS to be in this package to access package private
methods/classes.</div>
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<h3>Nested classes/interfaces inherited from class&nbsp;org.apache.hadoop.service.CompositeService</h3>
<code>org.apache.hadoop.service.CompositeService.CompositeServiceShutdownHook</code></li>
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<h3>Nested classes/interfaces inherited from interface&nbsp;org.apache.hadoop.service.Service</h3>
<code>org.apache.hadoop.service.Service.STATE</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>protected <a href="../../../../org/apache/hadoop/mapreduce/v2/app/TaskHeartbeatHandler.html" title="class in org.apache.hadoop.mapreduce.v2.app">TaskHeartbeatHandler</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#taskHeartbeatHandler">taskHeartbeatHandler</a></span></code>&nbsp;</td>
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<code>STOP_ONLY_STARTED_SERVICES</code></li>
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<code>versionID</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/mapred/TaskAttemptListenerImpl.html#TaskAttemptListenerImpl-org.apache.hadoop.mapreduce.v2.app.AppContext-org.apache.hadoop.mapreduce.security.token.JobTokenSecretManager-org.apache.hadoop.mapreduce.v2.app.rm.RMHeartbeatHandler-org.apache.hadoop.mapreduce.v2.app.rm.preemption.AMPreemptionPolicy-">TaskAttemptListenerImpl</a></span>(<a href="../../../../org/apache/hadoop/mapreduce/v2/app/AppContext.html" title="interface in org.apache.hadoop.mapreduce.v2.app">AppContext</a>&nbsp;context,
org.apache.hadoop.mapreduce.security.token.JobTokenSecretManager&nbsp;jobTokenSecretManager,
<a href="../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMHeartbeatHandler.html" title="interface in org.apache.hadoop.mapreduce.v2.app.rm">RMHeartbeatHandler</a>&nbsp;rmHeartbeatHandler,
<a href="../../../../org/apache/hadoop/mapreduce/v2/app/rm/preemption/AMPreemptionPolicy.html" title="interface in org.apache.hadoop.mapreduce.v2.app.rm.preemption">AMPreemptionPolicy</a>&nbsp;preemptionPolicy)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#TaskAttemptListenerImpl-org.apache.hadoop.mapreduce.v2.app.AppContext-org.apache.hadoop.mapreduce.security.token.JobTokenSecretManager-org.apache.hadoop.mapreduce.v2.app.rm.RMHeartbeatHandler-org.apache.hadoop.mapreduce.v2.app.rm.preemption.AMPreemptionPolicy-byte:A-">TaskAttemptListenerImpl</a></span>(<a href="../../../../org/apache/hadoop/mapreduce/v2/app/AppContext.html" title="interface in org.apache.hadoop.mapreduce.v2.app">AppContext</a>&nbsp;context,
org.apache.hadoop.mapreduce.security.token.JobTokenSecretManager&nbsp;jobTokenSecretManager,
<a href="../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMHeartbeatHandler.html" title="interface in org.apache.hadoop.mapreduce.v2.app.rm">RMHeartbeatHandler</a>&nbsp;rmHeartbeatHandler,
<a href="../../../../org/apache/hadoop/mapreduce/v2/app/rm/preemption/AMPreemptionPolicy.html" title="interface in org.apache.hadoop.mapreduce.v2.app.rm.preemption">AMPreemptionPolicy</a>&nbsp;preemptionPolicy,
byte[]&nbsp;secretShuffleKey)</code>&nbsp;</td>
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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="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<tr id="i0" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#canCommit-org.apache.hadoop.mapred.TaskAttemptID-">canCommit</a></span>(org.apache.hadoop.mapred.TaskAttemptID&nbsp;taskAttemptID)</code>
<div class="block">Child checking whether it can commit.</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/mapred/TaskAttemptListenerImpl.html#commitPending-org.apache.hadoop.mapred.TaskAttemptID-org.apache.hadoop.mapred.TaskStatus-">commitPending</a></span>(org.apache.hadoop.mapred.TaskAttemptID&nbsp;taskAttemptID,
org.apache.hadoop.mapred.TaskStatus&nbsp;taskStatsu)</code>
<div class="block">TaskAttempt is reporting that it is in commit_pending and it is waiting for
the commit Response
<br>
Commit it a two-phased protocol.</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/mapred/TaskAttemptListenerImpl.html#done-org.apache.hadoop.mapred.TaskAttemptID-">done</a></span>(org.apache.hadoop.mapred.TaskAttemptID&nbsp;taskAttemptID)</code>&nbsp;</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/mapred/TaskAttemptListenerImpl.html#fatalError-org.apache.hadoop.mapred.TaskAttemptID-java.lang.String-boolean-">fatalError</a></span>(org.apache.hadoop.mapred.TaskAttemptID&nbsp;taskAttemptID,
<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;msg,
boolean&nbsp;fastFail)</code>&nbsp;</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/mapred/TaskAttemptListenerImpl.html#fsError-org.apache.hadoop.mapred.TaskAttemptID-java.lang.String-">fsError</a></span>(org.apache.hadoop.mapred.TaskAttemptID&nbsp;taskAttemptID,
<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;message)</code>&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/net/InetSocketAddress.html?is-external=true" title="class or interface in java.net">InetSocketAddress</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#getAddress--">getAddress</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.mapreduce.checkpoint.TaskCheckpointID</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#getCheckpointID-org.apache.hadoop.mapred.TaskID-">getCheckpointID</a></span>(org.apache.hadoop.mapred.TaskID&nbsp;taskId)</code>&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>org.apache.hadoop.mapred.MapTaskCompletionEventsUpdate</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#getMapCompletionEvents-org.apache.hadoop.mapred.JobID-int-int-org.apache.hadoop.mapred.TaskAttemptID-">getMapCompletionEvents</a></span>(org.apache.hadoop.mapred.JobID&nbsp;jobIdentifier,
int&nbsp;startIndex,
int&nbsp;maxEvents,
org.apache.hadoop.mapred.TaskAttemptID&nbsp;taskAttemptID)</code>&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.ipc.ProtocolSignature</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#getProtocolSignature-java.lang.String-long-int-">getProtocolSignature</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>&nbsp;protocol,
long&nbsp;clientVersion,
int&nbsp;clientMethodsHash)</code>&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#getProtocolVersion-java.lang.String-long-">getProtocolVersion</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>&nbsp;arg0,
long&nbsp;arg1)</code>&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.mapred.JvmTask</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#getTask-org.apache.hadoop.mapred.JvmContext-">getTask</a></span>(org.apache.hadoop.mapred.JvmContext&nbsp;context)</code>&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#preempted-org.apache.hadoop.mapred.TaskAttemptID-org.apache.hadoop.mapred.TaskStatus-">preempted</a></span>(org.apache.hadoop.mapred.TaskAttemptID&nbsp;taskAttemptID,
org.apache.hadoop.mapred.TaskStatus&nbsp;taskStatus)</code>&nbsp;</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#registerHeartbeatHandler-org.apache.hadoop.conf.Configuration-">registerHeartbeatHandler</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#registerLaunchedTask-org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId-org.apache.hadoop.mapred.WrappedJvmID-">registerLaunchedTask</a></span>(org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId&nbsp;attemptID,
<a href="../../../../org/apache/hadoop/mapred/WrappedJvmID.html" title="class in org.apache.hadoop.mapred">WrappedJvmID</a>&nbsp;jvmId)</code>
<div class="block">Register task attempt.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#registerPendingTask-org.apache.hadoop.mapred.Task-org.apache.hadoop.mapred.WrappedJvmID-">registerPendingTask</a></span>(org.apache.hadoop.mapred.Task&nbsp;task,
<a href="../../../../org/apache/hadoop/mapred/WrappedJvmID.html" title="class in org.apache.hadoop.mapred">WrappedJvmID</a>&nbsp;jvmID)</code>
<div class="block">Register a JVM with the listener.</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#reportDiagnosticInfo-org.apache.hadoop.mapred.TaskAttemptID-java.lang.String-">reportDiagnosticInfo</a></span>(org.apache.hadoop.mapred.TaskAttemptID&nbsp;taskAttemptID,
<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;diagnosticInfo)</code>&nbsp;</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#reportNextRecordRange-org.apache.hadoop.mapred.TaskAttemptID-org.apache.hadoop.mapred.SortedRanges.Range-">reportNextRecordRange</a></span>(org.apache.hadoop.mapred.TaskAttemptID&nbsp;taskAttemptID,
org.apache.hadoop.mapred.SortedRanges.Range&nbsp;range)</code>&nbsp;</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#serviceInit-org.apache.hadoop.conf.Configuration-">serviceInit</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#serviceStart--">serviceStart</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#serviceStop--">serviceStop</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#setCheckpointID-org.apache.hadoop.mapred.TaskID-org.apache.hadoop.mapreduce.checkpoint.TaskCheckpointID-">setCheckpointID</a></span>(org.apache.hadoop.mapred.TaskID&nbsp;taskId,
org.apache.hadoop.mapreduce.checkpoint.TaskCheckpointID&nbsp;cid)</code>&nbsp;</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#shuffleError-org.apache.hadoop.mapred.TaskAttemptID-java.lang.String-">shuffleError</a></span>(org.apache.hadoop.mapred.TaskAttemptID&nbsp;taskAttemptID,
<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;message)</code>&nbsp;</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#startRpcServer--">startRpcServer</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code>org.apache.hadoop.mapred.AMFeedback</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#statusUpdate-org.apache.hadoop.mapred.TaskAttemptID-org.apache.hadoop.mapred.TaskStatus-">statusUpdate</a></span>(org.apache.hadoop.mapred.TaskAttemptID&nbsp;taskAttemptID,
org.apache.hadoop.mapred.TaskStatus&nbsp;taskStatus)</code>&nbsp;</td>
</tr>
<tr id="i24" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#stopRpcServer--">stopRpcServer</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i25" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#unregister-org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId-org.apache.hadoop.mapred.WrappedJvmID-">unregister</a></span>(org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId&nbsp;attemptID,
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<div class="block">Child checking whether it can commit.
<br>
Commit is a two-phased protocol. First the attempt informs the
ApplicationMaster that it is
<a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#commitPending-org.apache.hadoop.mapred.TaskAttemptID-org.apache.hadoop.mapred.TaskStatus-"><code>commitPending(TaskAttemptID, TaskStatus)</code></a>. Then it repeatedly polls
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<dd><code>canCommit</code>&nbsp;in interface&nbsp;<code>org.apache.hadoop.mapred.TaskUmbilicalProtocol</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
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the commit Response
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Commit it a two-phased protocol. First the attempt informs the
ApplicationMaster that it is
<a href="../../../../org/apache/hadoop/mapred/TaskAttemptListenerImpl.html#commitPending-org.apache.hadoop.mapred.TaskAttemptID-org.apache.hadoop.mapred.TaskStatus-"><code>commitPending(TaskAttemptID, TaskStatus)</code></a>. Then it repeatedly polls
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<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>
<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></dd>
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<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></dd>
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<dt><span class="throwsLabel">Throws:</span></dt>
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int&nbsp;maxEvents,
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<dt><span class="throwsLabel">Throws:</span></dt>
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<dd><code>getProtocolVersion</code>&nbsp;in interface&nbsp;<code>org.apache.hadoop.ipc.VersionedProtocol</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>
</dl>
</li>
</ul>
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<h4>reportNextRecordRange</h4>
<pre>public&nbsp;void&nbsp;reportNextRecordRange(org.apache.hadoop.mapred.TaskAttemptID&nbsp;taskAttemptID,
org.apache.hadoop.mapred.SortedRanges.Range&nbsp;range)
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="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>reportNextRecordRange</code>&nbsp;in interface&nbsp;<code>org.apache.hadoop.mapred.TaskUmbilicalProtocol</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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<h4>getTask</h4>
<pre>public&nbsp;org.apache.hadoop.mapred.JvmTask&nbsp;getTask(org.apache.hadoop.mapred.JvmContext&nbsp;context)
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="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getTask</code>&nbsp;in interface&nbsp;<code>org.apache.hadoop.mapred.TaskUmbilicalProtocol</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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<h4>registerPendingTask</h4>
<pre>public&nbsp;void&nbsp;registerPendingTask(org.apache.hadoop.mapred.Task&nbsp;task,
<a href="../../../../org/apache/hadoop/mapred/WrappedJvmID.html" title="class in org.apache.hadoop.mapred">WrappedJvmID</a>&nbsp;jvmID)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../org/apache/hadoop/mapreduce/v2/app/TaskAttemptListener.html#registerPendingTask-org.apache.hadoop.mapred.Task-org.apache.hadoop.mapred.WrappedJvmID-">TaskAttemptListener</a></code></span></div>
<div class="block">Register a JVM with the listener. This should be called as soon as a
JVM ID is assigned to a task attempt, before it has been launched.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/hadoop/mapreduce/v2/app/TaskAttemptListener.html#registerPendingTask-org.apache.hadoop.mapred.Task-org.apache.hadoop.mapred.WrappedJvmID-">registerPendingTask</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/hadoop/mapreduce/v2/app/TaskAttemptListener.html" title="interface in org.apache.hadoop.mapreduce.v2.app">TaskAttemptListener</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>task</code> - the task itself for this JVM.</dd>
<dd><code>jvmID</code> - The ID of the JVM .</dd>
</dl>
</li>
</ul>
<a name="registerLaunchedTask-org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId-org.apache.hadoop.mapred.WrappedJvmID-">
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<h4>registerLaunchedTask</h4>
<pre>public&nbsp;void&nbsp;registerLaunchedTask(org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId&nbsp;attemptID,
<a href="../../../../org/apache/hadoop/mapred/WrappedJvmID.html" title="class in org.apache.hadoop.mapred">WrappedJvmID</a>&nbsp;jvmId)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../org/apache/hadoop/mapreduce/v2/app/TaskAttemptListener.html#registerLaunchedTask-org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId-org.apache.hadoop.mapred.WrappedJvmID-">TaskAttemptListener</a></code></span></div>
<div class="block">Register task attempt. This should be called when the JVM has been
launched.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/hadoop/mapreduce/v2/app/TaskAttemptListener.html#registerLaunchedTask-org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId-org.apache.hadoop.mapred.WrappedJvmID-">registerLaunchedTask</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/hadoop/mapreduce/v2/app/TaskAttemptListener.html" title="interface in org.apache.hadoop.mapreduce.v2.app">TaskAttemptListener</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>attemptID</code> - the id of the attempt for this JVM.</dd>
<dd><code>jvmId</code> - the ID of the JVM.</dd>
</dl>
</li>
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<a name="unregister-org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId-org.apache.hadoop.mapred.WrappedJvmID-">
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<h4>unregister</h4>
<pre>public&nbsp;void&nbsp;unregister(org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId&nbsp;attemptID,
<a href="../../../../org/apache/hadoop/mapred/WrappedJvmID.html" title="class in org.apache.hadoop.mapred">WrappedJvmID</a>&nbsp;jvmID)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../org/apache/hadoop/mapreduce/v2/app/TaskAttemptListener.html#unregister-org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId-org.apache.hadoop.mapred.WrappedJvmID-">TaskAttemptListener</a></code></span></div>
<div class="block">Unregister the JVM and the attempt associated with it. This should be
called when the attempt/JVM has finished executing and is being cleaned up.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/hadoop/mapreduce/v2/app/TaskAttemptListener.html#unregister-org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId-org.apache.hadoop.mapred.WrappedJvmID-">unregister</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/hadoop/mapreduce/v2/app/TaskAttemptListener.html" title="interface in org.apache.hadoop.mapreduce.v2.app">TaskAttemptListener</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>attemptID</code> - the ID of the attempt.</dd>
<dd><code>jvmID</code> - the ID of the JVM for that attempt.</dd>
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<h4>getProtocolSignature</h4>
<pre>public&nbsp;org.apache.hadoop.ipc.ProtocolSignature&nbsp;getProtocolSignature(<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;protocol,
long&nbsp;clientVersion,
int&nbsp;clientMethodsHash)
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="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getProtocolSignature</code>&nbsp;in interface&nbsp;<code>org.apache.hadoop.ipc.VersionedProtocol</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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<h4>getCheckpointID</h4>
<pre>public&nbsp;org.apache.hadoop.mapreduce.checkpoint.TaskCheckpointID&nbsp;getCheckpointID(org.apache.hadoop.mapred.TaskID&nbsp;taskId)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getCheckpointID</code>&nbsp;in interface&nbsp;<code>org.apache.hadoop.mapred.TaskUmbilicalProtocol</code></dd>
</dl>
</li>
</ul>
<a name="setCheckpointID-org.apache.hadoop.mapred.TaskID-org.apache.hadoop.mapreduce.checkpoint.TaskCheckpointID-">
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<h4>setCheckpointID</h4>
<pre>public&nbsp;void&nbsp;setCheckpointID(org.apache.hadoop.mapred.TaskID&nbsp;taskId,
org.apache.hadoop.mapreduce.checkpoint.TaskCheckpointID&nbsp;cid)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>setCheckpointID</code>&nbsp;in interface&nbsp;<code>org.apache.hadoop.mapred.TaskUmbilicalProtocol</code></dd>
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