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<div class="subTitle">org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime</div>
<h2 title="Interface ContainerRuntime" class="title">Interface ContainerRuntime</h2>
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<dt>All Known Subinterfaces:</dt>
<dd><a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/LinuxContainerRuntime.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime">LinuxContainerRuntime</a></dd>
</dl>
<dl>
<dt>All Known Implementing Classes:</dt>
<dd><a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/DefaultLinuxContainerRuntime.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime">DefaultLinuxContainerRuntime</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/DelegatingLinuxContainerRuntime.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime">DelegatingLinuxContainerRuntime</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/DockerLinuxContainerRuntime.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime">DockerLinuxContainerRuntime</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/JavaSandboxLinuxContainerRuntime.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime">JavaSandboxLinuxContainerRuntime</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime">OCIContainerRuntime</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/RuncContainerRuntime.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime">RuncContainerRuntime</a></dd>
</dl>
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<pre>@InterfaceAudience.Private
@InterfaceStability.Unstable
public interface <span class="typeNameLabel">ContainerRuntime</span></pre>
<div class="block">An abstraction for various container runtime implementations. Examples
include Process Tree, Docker, Appc runtimes etc. These implementations
are meant for low-level OS container support - dependencies on
higher-level node manager constructs should be avoided.</div>
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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">&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></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>org.apache.hadoop.hdfs.protocol.datatransfer.IOStreamPair</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html#execContainer-org.apache.hadoop.yarn.server.nodemanager.executor.ContainerExecContext-">execContainer</a></span>(<a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/executor/ContainerExecContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.executor">ContainerExecContext</a>&nbsp;ctx)</code>
<div class="block">Run a program in container.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><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/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html#getExposedPorts-org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container-">getExposedPorts</a></span>(<a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/container/Container.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.container">Container</a>&nbsp;container)</code>
<div class="block">Return the exposed ports of the container.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><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/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html#getIpAndHost-org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container-">getIpAndHost</a></span>(<a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/container/Container.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.container">Container</a>&nbsp;container)</code>
<div class="block">Return the host and ip of the container.</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/server/nodemanager/containermanager/runtime/ContainerRuntime.html#launchContainer-org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime.ContainerRuntimeContext-">launchContainer</a></span>(<a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerRuntimeContext</a>&nbsp;ctx)</code>
<div class="block">Launch a container.</div>
</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/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html#prepareContainer-org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime.ContainerRuntimeContext-">prepareContainer</a></span>(<a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerRuntimeContext</a>&nbsp;ctx)</code>
<div class="block">Prepare a container to be ready for launch.</div>
</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/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html#reapContainer-org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime.ContainerRuntimeContext-">reapContainer</a></span>(<a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerRuntimeContext</a>&nbsp;ctx)</code>
<div class="block">Perform any container cleanup that may be required.</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/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html#relaunchContainer-org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime.ContainerRuntimeContext-">relaunchContainer</a></span>(<a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerRuntimeContext</a>&nbsp;ctx)</code>
<div class="block">Relaunch a container.</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/server/nodemanager/containermanager/runtime/ContainerRuntime.html#signalContainer-org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime.ContainerRuntimeContext-">signalContainer</a></span>(<a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerRuntimeContext</a>&nbsp;ctx)</code>
<div class="block">Signal a container.</div>
</td>
</tr>
</table>
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<h3>Method Detail</h3>
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<h4>prepareContainer</h4>
<pre>void&nbsp;prepareContainer(<a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerRuntimeContext</a>&nbsp;ctx)
throws <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<div class="block">Prepare a container to be ready for launch.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ctx</code> - the <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime"><code>ContainerRuntimeContext</code></a></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code> - if an error occurs while preparing
the container</dd>
</dl>
</li>
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<h4>launchContainer</h4>
<pre>void&nbsp;launchContainer(<a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerRuntimeContext</a>&nbsp;ctx)
throws <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<div class="block">Launch a container.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ctx</code> - the <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime"><code>ContainerRuntimeContext</code></a></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code> - if an error occurs while launching
the container</dd>
</dl>
</li>
</ul>
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<h4>relaunchContainer</h4>
<pre>void&nbsp;relaunchContainer(<a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerRuntimeContext</a>&nbsp;ctx)
throws <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<div class="block">Relaunch a container.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ctx</code> - the <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime"><code>ContainerRuntimeContext</code></a></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code> - if an error occurs while relaunching
the container</dd>
</dl>
</li>
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<h4>signalContainer</h4>
<pre>void&nbsp;signalContainer(<a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerRuntimeContext</a>&nbsp;ctx)
throws <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<div class="block">Signal a container. Signals may be a request to terminate, a status check,
etc.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ctx</code> - the <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime"><code>ContainerRuntimeContext</code></a></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code> - if an error occurs while signaling
the container</dd>
</dl>
</li>
</ul>
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<h4>reapContainer</h4>
<pre>void&nbsp;reapContainer(<a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerRuntimeContext</a>&nbsp;ctx)
throws <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<div class="block">Perform any container cleanup that may be required.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ctx</code> - the <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime"><code>ContainerRuntimeContext</code></a></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code> - if an error occurs while reaping
the container</dd>
</dl>
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<h4>execContainer</h4>
<pre>org.apache.hadoop.hdfs.protocol.datatransfer.IOStreamPair&nbsp;execContainer(<a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/executor/ContainerExecContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.executor">ContainerExecContext</a>&nbsp;ctx)
throws <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<div class="block">Run a program in container.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ctx</code> - the <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/executor/ContainerExecContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.executor"><code>ContainerExecContext</code></a></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>stdin and stdout of container exec</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code></dd>
</dl>
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<h4>getIpAndHost</h4>
<pre><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;getIpAndHost(<a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/container/Container.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.container">Container</a>&nbsp;container)
throws <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<div class="block">Return the host and ip of the container.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>container</code> - the <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/container/Container.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.container"><code>Container</code></a></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code> - if an error occurs while getting the ip
and hostname</dd>
</dl>
</li>
</ul>
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<h4>getExposedPorts</h4>
<pre><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;getExposedPorts(<a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/container/Container.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.container">Container</a>&nbsp;container)
throws <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<div class="block">Return the exposed ports of the container.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>container</code> - the <a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/container/Container.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.container"><code>Container</code></a></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>List of exposed ports</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code> - if an error occurs while getting
the exposed ports</dd>
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