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| <h2 title="Class AMRMClientAsync.AbstractCallbackHandler" class="title">Class AMRMClientAsync.AbstractCallbackHandler</h2> |
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| <li>org.apache.hadoop.yarn.client.api.async.AMRMClientAsync.AbstractCallbackHandler</li> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.CallbackHandler.html" title="interface in org.apache.hadoop.yarn.client.api.async">AMRMClientAsync.CallbackHandler</a></dd> |
| </dl> |
| <dl> |
| <dt>Enclosing class:</dt> |
| <dd><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.html" title="class in org.apache.hadoop.yarn.client.api.async">AMRMClientAsync</a><<a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.html" title="type parameter in AMRMClientAsync">T</a> extends <a href="../../../../../../../org/apache/hadoop/yarn/client/api/AMRMClient.ContainerRequest.html" title="class in org.apache.hadoop.yarn.client.api">AMRMClient.ContainerRequest</a>></dd> |
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| <pre>public abstract static class <span class="typeNameLabel">AMRMClientAsync.AbstractCallbackHandler</span> |
| extends <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> |
| implements <a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.CallbackHandler.html" title="interface in org.apache.hadoop.yarn.client.api.async">AMRMClientAsync.CallbackHandler</a></pre> |
| <div class="block"><p> |
| The callback abstract class. The callback functions need to be implemented |
| by <a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.html" title="class in org.apache.hadoop.yarn.client.api.async"><code>AMRMClientAsync</code></a> users. The APIs are called when responses from |
| the <code>ResourceManager</code> are available. |
| </p></div> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.AbstractCallbackHandler.html#AbstractCallbackHandler--">AbstractCallbackHandler</a></span>()</code> </td> |
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| <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="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract 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> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>abstract float</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.AbstractCallbackHandler.html#getProgress--">getProgress</a></span>()</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.AbstractCallbackHandler.html#onContainersAllocated-java.util.List-">onContainersAllocated</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.yarn.api.records.Container> containers)</code> |
| <div class="block">Called when the ResourceManager responds to a heartbeat with allocated |
| containers.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.AbstractCallbackHandler.html#onContainersCompleted-java.util.List-">onContainersCompleted</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.yarn.api.records.ContainerStatus> statuses)</code> |
| <div class="block">Called when the ResourceManager responds to a heartbeat with completed |
| containers.</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/yarn/client/api/async/AMRMClientAsync.AbstractCallbackHandler.html#onContainersReceivedFromPreviousAttempts-java.util.List-">onContainersReceivedFromPreviousAttempts</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.yarn.api.records.Container> containers)</code> |
| <div class="block">Called when the ResourceManager responds to a heartbeat with containers |
| from previous attempt.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.AbstractCallbackHandler.html#onContainersUpdated-java.util.List-">onContainersUpdated</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.yarn.api.records.UpdatedContainer> containers)</code> |
| <div class="block">Called when the ResourceManager responds to a heartbeat with containers |
| whose resource allocation has been changed.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.AbstractCallbackHandler.html#onError-java.lang.Throwable-">onError</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a> e)</code> |
| <div class="block">Called when error comes from RM communications as well as from errors in |
| the callback itself from the app.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.AbstractCallbackHandler.html#onNodesUpdated-java.util.List-">onNodesUpdated</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.yarn.api.records.NodeReport> updatedNodes)</code> |
| <div class="block">Called when nodes tracked by the ResourceManager have changed in health, |
| availability etc.</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/yarn/client/api/async/AMRMClientAsync.AbstractCallbackHandler.html#onPreemptionMessageReceived-org.apache.hadoop.yarn.api.records.PreemptionMessage-">onPreemptionMessageReceived</a></span>(org.apache.hadoop.yarn.api.records.PreemptionMessage preemptionMessage)</code> |
| <div class="block">Called when the RM responds to a heartbeat with preemption message</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/yarn/client/api/async/AMRMClientAsync.AbstractCallbackHandler.html#onRequestsRejected-java.util.List-">onRequestsRejected</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.yarn.api.records.RejectedSchedulingRequest> rejectedSchedulingRequests)</code> |
| <div class="block">Called when the RM has rejected Scheduling Requests.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.AbstractCallbackHandler.html#onShutdownRequest--">onShutdownRequest</a></span>()</code> |
| <div class="block">Called when the ResourceManager wants the ApplicationMaster to shutdown |
| for being out of sync etc.</div> |
| </td> |
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| <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> |
| </ul> |
| </li> |
| </ul> |
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| <h3>Constructor Detail</h3> |
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| <h4>AbstractCallbackHandler</h4> |
| <pre>public AbstractCallbackHandler()</pre> |
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| <h4>onContainersCompleted</h4> |
| <pre>public abstract void onContainersCompleted(<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.yarn.api.records.ContainerStatus> statuses)</pre> |
| <div class="block">Called when the ResourceManager responds to a heartbeat with completed |
| containers. If the response contains both completed containers and |
| allocated containers, this will be called before containersAllocated.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.CallbackHandler.html#onContainersCompleted-java.util.List-">onContainersCompleted</a></code> in interface <code><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.CallbackHandler.html" title="interface in org.apache.hadoop.yarn.client.api.async">AMRMClientAsync.CallbackHandler</a></code></dd> |
| </dl> |
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| <h4>onContainersAllocated</h4> |
| <pre>public abstract void onContainersAllocated(<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.yarn.api.records.Container> containers)</pre> |
| <div class="block">Called when the ResourceManager responds to a heartbeat with allocated |
| containers. If the response containers both completed containers and |
| allocated containers, this will be called after containersCompleted.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.CallbackHandler.html#onContainersAllocated-java.util.List-">onContainersAllocated</a></code> in interface <code><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.CallbackHandler.html" title="interface in org.apache.hadoop.yarn.client.api.async">AMRMClientAsync.CallbackHandler</a></code></dd> |
| </dl> |
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| <h4>onContainersUpdated</h4> |
| <pre>@InterfaceAudience.Public |
| @InterfaceStability.Unstable |
| public abstract void onContainersUpdated(<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.yarn.api.records.UpdatedContainer> containers)</pre> |
| <div class="block">Called when the ResourceManager responds to a heartbeat with containers |
| whose resource allocation has been changed.</div> |
| </li> |
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| <h4>onShutdownRequest</h4> |
| <pre>public abstract void onShutdownRequest()</pre> |
| <div class="block">Called when the ResourceManager wants the ApplicationMaster to shutdown |
| for being out of sync etc. The ApplicationMaster should not unregister |
| with the RM unless the ApplicationMaster wants to be the last attempt.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.CallbackHandler.html#onShutdownRequest--">onShutdownRequest</a></code> in interface <code><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.CallbackHandler.html" title="interface in org.apache.hadoop.yarn.client.api.async">AMRMClientAsync.CallbackHandler</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
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| <h4>onNodesUpdated</h4> |
| <pre>public abstract void onNodesUpdated(<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.yarn.api.records.NodeReport> updatedNodes)</pre> |
| <div class="block">Called when nodes tracked by the ResourceManager have changed in health, |
| availability etc.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.CallbackHandler.html#onNodesUpdated-java.util.List-">onNodesUpdated</a></code> in interface <code><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.CallbackHandler.html" title="interface in org.apache.hadoop.yarn.client.api.async">AMRMClientAsync.CallbackHandler</a></code></dd> |
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| <h4>getProgress</h4> |
| <pre>public abstract float getProgress()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.CallbackHandler.html#getProgress--">getProgress</a></code> in interface <code><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.CallbackHandler.html" title="interface in org.apache.hadoop.yarn.client.api.async">AMRMClientAsync.CallbackHandler</a></code></dd> |
| </dl> |
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| <h4>onError</h4> |
| <pre>public abstract void onError(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a> e)</pre> |
| <div class="block">Called when error comes from RM communications as well as from errors in |
| the callback itself from the app. Calling |
| stop() is the recommended action.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.CallbackHandler.html#onError-java.lang.Throwable-">onError</a></code> in interface <code><a href="../../../../../../../org/apache/hadoop/yarn/client/api/async/AMRMClientAsync.CallbackHandler.html" title="interface in org.apache.hadoop.yarn.client.api.async">AMRMClientAsync.CallbackHandler</a></code></dd> |
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| <a name="onContainersReceivedFromPreviousAttempts-java.util.List-"> |
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| <h4>onContainersReceivedFromPreviousAttempts</h4> |
| <pre>public void onContainersReceivedFromPreviousAttempts(<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.yarn.api.records.Container> containers)</pre> |
| <div class="block">Called when the ResourceManager responds to a heartbeat with containers |
| from previous attempt.</div> |
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| <h4>onRequestsRejected</h4> |
| <pre>@InterfaceAudience.Public |
| @InterfaceStability.Unstable |
| public void onRequestsRejected(<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.yarn.api.records.RejectedSchedulingRequest> rejectedSchedulingRequests)</pre> |
| <div class="block">Called when the RM has rejected Scheduling Requests.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rejectedSchedulingRequests</code> - Rejected Scheduling Requests.</dd> |
| </dl> |
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| <h4>onPreemptionMessageReceived</h4> |
| <pre>@InterfaceAudience.Public |
| @InterfaceStability.Unstable |
| public void onPreemptionMessageReceived(org.apache.hadoop.yarn.api.records.PreemptionMessage preemptionMessage)</pre> |
| <div class="block">Called when the RM responds to a heartbeat with preemption message</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>preemptionMessage</code> - </dd> |
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