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<div class="subTitle">org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources</div>
<h2 title="Class ResourceHandlerModule" class="title">Class ResourceHandlerModule</h2>
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<li>org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources.ResourceHandlerModule</li>
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<pre>@InterfaceAudience.Private
@InterfaceStability.Unstable
public class <span class="typeNameLabel">ResourceHandlerModule</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></pre>
<div class="block">Provides mechanisms to get various resource handlers - cpu, memory, network,
disk etc., - based on configuration.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerModule.html#ResourceHandlerModule--">ResourceHandlerModule</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/CGroupsHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">CGroupsHandler</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerModule.html#getCGroupsHandler--">getCGroupsHandler</a></span>()</code>
<div class="block">Returns a (possibly null) reference to a cGroupsHandler.</div>
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<td class="colFirst"><code>static <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/linux/resources/ResourceHandlerModule.html#getCgroupsRelativeRoot--">getCgroupsRelativeRoot</a></span>()</code>
<div class="block">Returns relative root for cgroups.</div>
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<td class="colFirst"><code>static <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerChain.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerChain</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerModule.html#getConfiguredResourceHandlerChain-org.apache.hadoop.conf.Configuration-org.apache.hadoop.yarn.server.nodemanager.Context-">getConfiguredResourceHandlerChain</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf,
<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/Context.html" title="interface in org.apache.hadoop.yarn.server.nodemanager">Context</a>&nbsp;nmContext)</code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/CpuResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">CpuResourceHandler</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerModule.html#getCpuResourceHandler--">getCpuResourceHandler</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/DiskResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">DiskResourceHandler</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerModule.html#getDiskResourceHandler--">getDiskResourceHandler</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/MemoryResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">MemoryResourceHandler</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerModule.html#getMemoryResourceHandler--">getMemoryResourceHandler</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/NetworkPacketTaggingHandlerImpl.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">NetworkPacketTaggingHandlerImpl</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerModule.html#getNetworkResourceHandler--">getNetworkResourceHandler</a></span>()</code>&nbsp;</td>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandler</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerModule.html#getNetworkTaggingHandler-org.apache.hadoop.conf.Configuration-">getNetworkTaggingHandler</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/DiskResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">DiskResourceHandler</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerModule.html#initDiskResourceHandler-org.apache.hadoop.conf.Configuration-">initDiskResourceHandler</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
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<tr id="i9" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/MemoryResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">MemoryResourceHandler</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerModule.html#initMemoryResourceHandler-org.apache.hadoop.conf.Configuration-">initMemoryResourceHandler</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
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<tr id="i10" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandler</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerModule.html#initNetworkResourceHandler-org.apache.hadoop.conf.Configuration-">initNetworkResourceHandler</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/OutboundBandwidthResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">OutboundBandwidthResourceHandler</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerModule.html#initOutboundBandwidthResourceHandler-org.apache.hadoop.conf.Configuration-">initOutboundBandwidthResourceHandler</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<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="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<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>&gt;&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerModule.html#parseConfiguredCGroupPath-java.lang.String-">parseConfiguredCGroupPath</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;cgroupMountPath)</code>
<div class="block">If a cgroup mount directory is specified, it returns cgroup directories
with valid names.</div>
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<pre>public&nbsp;ResourceHandlerModule()</pre>
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<pre>public static&nbsp;<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/CGroupsHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">CGroupsHandler</a>&nbsp;getCGroupsHandler()</pre>
<div class="block">Returns a (possibly null) reference to a cGroupsHandler. This handler is
non-null only if one or more of the known cgroups-based resource
handlers are in use and have been initialized.</div>
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<pre>public static&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>&nbsp;getCgroupsRelativeRoot()</pre>
<div class="block">Returns relative root for cgroups. Returns null if cGroupsHandler is
not initialized, or if the path is empty.</div>
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<pre>public static&nbsp;<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/NetworkPacketTaggingHandlerImpl.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">NetworkPacketTaggingHandlerImpl</a>&nbsp;getNetworkResourceHandler()</pre>
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<pre>public static&nbsp;<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/DiskResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">DiskResourceHandler</a>&nbsp;getDiskResourceHandler()</pre>
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<pre>public static&nbsp;<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/MemoryResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">MemoryResourceHandler</a>&nbsp;getMemoryResourceHandler()</pre>
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<pre>public static&nbsp;<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/CpuResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">CpuResourceHandler</a>&nbsp;getCpuResourceHandler()</pre>
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<pre>public static&nbsp;<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandler</a>&nbsp;initNetworkResourceHandler(org.apache.hadoop.conf.Configuration&nbsp;conf)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></code></dd>
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<pre>public static&nbsp;<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandler</a>&nbsp;getNetworkTaggingHandler(org.apache.hadoop.conf.Configuration&nbsp;conf)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></code></dd>
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<h4>initOutboundBandwidthResourceHandler</h4>
<pre>public static&nbsp;<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/OutboundBandwidthResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">OutboundBandwidthResourceHandler</a>&nbsp;initOutboundBandwidthResourceHandler(org.apache.hadoop.conf.Configuration&nbsp;conf)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></code></dd>
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<h4>initDiskResourceHandler</h4>
<pre>public static&nbsp;<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/DiskResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">DiskResourceHandler</a>&nbsp;initDiskResourceHandler(org.apache.hadoop.conf.Configuration&nbsp;conf)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></code></dd>
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<h4>initMemoryResourceHandler</h4>
<pre>public static&nbsp;<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/MemoryResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">MemoryResourceHandler</a>&nbsp;initMemoryResourceHandler(org.apache.hadoop.conf.Configuration&nbsp;conf)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></code></dd>
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<h4>getConfiguredResourceHandlerChain</h4>
<pre>public static&nbsp;<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerChain.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerChain</a>&nbsp;getConfiguredResourceHandlerChain(org.apache.hadoop.conf.Configuration&nbsp;conf,
<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/Context.html" title="interface in org.apache.hadoop.yarn.server.nodemanager">Context</a>&nbsp;nmContext)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></code></dd>
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<h4>parseConfiguredCGroupPath</h4>
<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<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="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<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>&gt;&gt;&nbsp;parseConfiguredCGroupPath(<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;cgroupMountPath)
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>
<div class="block">If a cgroup mount directory is specified, it returns cgroup directories
with valid names.
The requirement is that each hierarchy has to be named with the comma
separated names of subsystems supported.
For example: /sys/fs/cgroup/cpu,cpuacct</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>cgroupMountPath</code> - Root cgroup mount path (/sys/fs/cgroup in the
example above)</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A path to cgroup subsystem set mapping in the same format as
<code>CGroupsHandlerImpl.parseMtab(String)</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> - if the specified directory cannot be listed</dd>
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