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| <div class="subTitle">org.apache.hadoop.mapreduce.v2.app.speculate</div> |
| <h2 title="Class DefaultSpeculator" class="title">Class DefaultSpeculator</h2> |
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| <li>org.apache.hadoop.service.AbstractService</li> |
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| <pre>public class <span class="typeNameLabel">DefaultSpeculator</span> |
| extends org.apache.hadoop.service.AbstractService |
| implements <a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/Speculator.html" title="interface in org.apache.hadoop.mapreduce.v2.app.speculate">Speculator</a></pre> |
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| <h3>Nested classes/interfaces inherited from interface org.apache.hadoop.mapreduce.v2.app.speculate.<a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/Speculator.html" title="interface in org.apache.hadoop.mapreduce.v2.app.speculate">Speculator</a></h3> |
| <code><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/Speculator.EventType.html" title="enum in org.apache.hadoop.mapreduce.v2.app.speculate">Speculator.EventType</a></code></li> |
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| <code>org.apache.hadoop.service.Service.STATE</code></li> |
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| <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/mapreduce/v2/app/speculate/DefaultSpeculator.html#DefaultSpeculator-org.apache.hadoop.conf.Configuration-org.apache.hadoop.mapreduce.v2.app.AppContext-">DefaultSpeculator</a></span>(org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/AppContext.html" title="interface in org.apache.hadoop.mapreduce.v2.app">AppContext</a> context)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/DefaultSpeculator.html#DefaultSpeculator-org.apache.hadoop.conf.Configuration-org.apache.hadoop.mapreduce.v2.app.AppContext-org.apache.hadoop.yarn.util.Clock-">DefaultSpeculator</a></span>(org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/AppContext.html" title="interface in org.apache.hadoop.mapreduce.v2.app">AppContext</a> context, |
| org.apache.hadoop.yarn.util.Clock clock)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/DefaultSpeculator.html#DefaultSpeculator-org.apache.hadoop.conf.Configuration-org.apache.hadoop.mapreduce.v2.app.AppContext-org.apache.hadoop.mapreduce.v2.app.speculate.TaskRuntimeEstimator-org.apache.hadoop.yarn.util.Clock-">DefaultSpeculator</a></span>(org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/AppContext.html" title="interface in org.apache.hadoop.mapreduce.v2.app">AppContext</a> context, |
| <a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/TaskRuntimeEstimator.html" title="interface in org.apache.hadoop.mapreduce.v2.app.speculate">TaskRuntimeEstimator</a> estimator, |
| org.apache.hadoop.yarn.util.Clock clock)</code> </td> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/DefaultSpeculator.html#addSpeculativeAttempt-org.apache.hadoop.mapreduce.v2.api.records.TaskId-">addSpeculativeAttempt</a></span>(org.apache.hadoop.mapreduce.v2.api.records.TaskId taskID)</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/DefaultSpeculator.html#eventQueueEmpty--">eventQueueEmpty</a></span>()</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/DefaultSpeculator.html#getMinimumAllowedSpeculativeTasks--">getMinimumAllowedSpeculativeTasks</a></span>()</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/DefaultSpeculator.html#getProportionRunningTasksSpeculatable--">getProportionRunningTasksSpeculatable</a></span>()</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/DefaultSpeculator.html#getProportionTotalTasksSpeculatable--">getProportionTotalTasksSpeculatable</a></span>()</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/DefaultSpeculator.html#getSoonestRetryAfterNoSpeculate--">getSoonestRetryAfterNoSpeculate</a></span>()</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/DefaultSpeculator.html#getSoonestRetryAfterSpeculate--">getSoonestRetryAfterSpeculate</a></span>()</code> </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/mapreduce/v2/app/speculate/DefaultSpeculator.html#handle-org.apache.hadoop.mapreduce.v2.app.speculate.SpeculatorEvent-">handle</a></span>(<a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/SpeculatorEvent.html" title="class in org.apache.hadoop.mapreduce.v2.app.speculate">SpeculatorEvent</a> event)</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/mapreduce/v2/app/speculate/DefaultSpeculator.html#handleAttempt-org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptStatusUpdateEvent.TaskAttemptStatus-">handleAttempt</a></span>(<a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/event/TaskAttemptStatusUpdateEvent.TaskAttemptStatus.html" title="class in org.apache.hadoop.mapreduce.v2.app.job.event">TaskAttemptStatusUpdateEvent.TaskAttemptStatus</a> status)</code> </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/mapreduce/v2/app/speculate/DefaultSpeculator.html#scanForSpeculations--">scanForSpeculations</a></span>()</code> </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/DefaultSpeculator.html#serviceStart--">serviceStart</a></span>()</code> </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/DefaultSpeculator.html#serviceStop--">serviceStop</a></span>()</code> </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/mapreduce/v2/app/speculate/DefaultSpeculator.html#statusUpdate-org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptStatusUpdateEvent.TaskAttemptStatus-long-">statusUpdate</a></span>(<a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/event/TaskAttemptStatusUpdateEvent.TaskAttemptStatus.html" title="class in org.apache.hadoop.mapreduce.v2.app.job.event">TaskAttemptStatusUpdateEvent.TaskAttemptStatus</a> reportedStatus, |
| long timestamp)</code> |
| <div class="block">Absorbs one TaskAttemptStatus</div> |
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| </a> |
| <h3>Methods inherited from class org.apache.hadoop.service.AbstractService</h3> |
| <code>close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, serviceInit, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop</code></li> |
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| <h3>Constructor Detail</h3> |
| <a name="DefaultSpeculator-org.apache.hadoop.conf.Configuration-org.apache.hadoop.mapreduce.v2.app.AppContext-"> |
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| <h4>DefaultSpeculator</h4> |
| <pre>public DefaultSpeculator(org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/AppContext.html" title="interface in org.apache.hadoop.mapreduce.v2.app">AppContext</a> context)</pre> |
| </li> |
| </ul> |
| <a name="DefaultSpeculator-org.apache.hadoop.conf.Configuration-org.apache.hadoop.mapreduce.v2.app.AppContext-org.apache.hadoop.yarn.util.Clock-"> |
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| <h4>DefaultSpeculator</h4> |
| <pre>public DefaultSpeculator(org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/AppContext.html" title="interface in org.apache.hadoop.mapreduce.v2.app">AppContext</a> context, |
| org.apache.hadoop.yarn.util.Clock clock)</pre> |
| </li> |
| </ul> |
| <a name="DefaultSpeculator-org.apache.hadoop.conf.Configuration-org.apache.hadoop.mapreduce.v2.app.AppContext-org.apache.hadoop.mapreduce.v2.app.speculate.TaskRuntimeEstimator-org.apache.hadoop.yarn.util.Clock-"> |
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| <h4>DefaultSpeculator</h4> |
| <pre>public DefaultSpeculator(org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/AppContext.html" title="interface in org.apache.hadoop.mapreduce.v2.app">AppContext</a> context, |
| <a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/TaskRuntimeEstimator.html" title="interface in org.apache.hadoop.mapreduce.v2.app.speculate">TaskRuntimeEstimator</a> estimator, |
| org.apache.hadoop.yarn.util.Clock clock)</pre> |
| </li> |
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| <h3>Method Detail</h3> |
| <a name="serviceStart--"> |
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| <h4>serviceStart</h4> |
| <pre>protected void serviceStart() |
| throws <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></pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code>serviceStart</code> in class <code>org.apache.hadoop.service.AbstractService</code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><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></code></dd> |
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| <a name="serviceStop--"> |
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| <h4>serviceStop</h4> |
| <pre>protected void serviceStop() |
| throws <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></pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code>serviceStop</code> in class <code>org.apache.hadoop.service.AbstractService</code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><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></code></dd> |
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| <h4>handleAttempt</h4> |
| <pre>public void handleAttempt(<a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/event/TaskAttemptStatusUpdateEvent.TaskAttemptStatus.html" title="class in org.apache.hadoop.mapreduce.v2.app.job.event">TaskAttemptStatusUpdateEvent.TaskAttemptStatus</a> status)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/Speculator.html#handleAttempt-org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptStatusUpdateEvent.TaskAttemptStatus-">handleAttempt</a></code> in interface <code><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/Speculator.html" title="interface in org.apache.hadoop.mapreduce.v2.app.speculate">Speculator</a></code></dd> |
| </dl> |
| </li> |
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| <h4>eventQueueEmpty</h4> |
| <pre>public boolean eventQueueEmpty()</pre> |
| </li> |
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| <a name="scanForSpeculations--"> |
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| </a> |
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| <h4>scanForSpeculations</h4> |
| <pre>public void scanForSpeculations()</pre> |
| </li> |
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| <a name="statusUpdate-org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptStatusUpdateEvent.TaskAttemptStatus-long-"> |
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| <h4>statusUpdate</h4> |
| <pre>protected void statusUpdate(<a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/event/TaskAttemptStatusUpdateEvent.TaskAttemptStatus.html" title="class in org.apache.hadoop.mapreduce.v2.app.job.event">TaskAttemptStatusUpdateEvent.TaskAttemptStatus</a> reportedStatus, |
| long timestamp)</pre> |
| <div class="block">Absorbs one TaskAttemptStatus</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>reportedStatus</code> - the status report that we got from a task attempt |
| that we want to fold into the speculation data for this job</dd> |
| <dd><code>timestamp</code> - the time this status corresponds to. This matters |
| because statuses contain progress.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="addSpeculativeAttempt-org.apache.hadoop.mapreduce.v2.api.records.TaskId-"> |
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| <h4>addSpeculativeAttempt</h4> |
| <pre>protected void addSpeculativeAttempt(org.apache.hadoop.mapreduce.v2.api.records.TaskId taskID)</pre> |
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| <h4>handle</h4> |
| <pre>public void handle(<a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/SpeculatorEvent.html" title="class in org.apache.hadoop.mapreduce.v2.app.speculate">SpeculatorEvent</a> event)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code>handle</code> in interface <code>org.apache.hadoop.yarn.event.EventHandler<<a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/SpeculatorEvent.html" title="class in org.apache.hadoop.mapreduce.v2.app.speculate">SpeculatorEvent</a>></code></dd> |
| </dl> |
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| <a name="getSoonestRetryAfterNoSpeculate--"> |
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| <h4>getSoonestRetryAfterNoSpeculate</h4> |
| <pre>public long getSoonestRetryAfterNoSpeculate()</pre> |
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| <h4>getSoonestRetryAfterSpeculate</h4> |
| <pre>public long getSoonestRetryAfterSpeculate()</pre> |
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| <a name="getProportionRunningTasksSpeculatable--"> |
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| <h4>getProportionRunningTasksSpeculatable</h4> |
| <pre>public double getProportionRunningTasksSpeculatable()</pre> |
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| </a> |
| <ul class="blockList"> |
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| <h4>getProportionTotalTasksSpeculatable</h4> |
| <pre>public double getProportionTotalTasksSpeculatable()</pre> |
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| </a> |
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| <h4>getMinimumAllowedSpeculativeTasks</h4> |
| <pre>public int getMinimumAllowedSpeculativeTasks()</pre> |
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