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<div class="subTitle">org.apache.hadoop.yarn.server.nodemanager</div>
<h2 title="Class LocalDirsHandlerService" class="title">Class LocalDirsHandlerService</h2>
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<li>org.apache.hadoop.service.AbstractService</li>
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<li>org.apache.hadoop.yarn.server.nodemanager.LocalDirsHandlerService</li>
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<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.service.Service, <a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/health/HealthReporter.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.health">HealthReporter</a></dd>
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<pre>public class <span class="typeNameLabel">LocalDirsHandlerService</span>
extends org.apache.hadoop.service.AbstractService
implements <a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/health/HealthReporter.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.health">HealthReporter</a></pre>
<div class="block">The class which provides functionality of checking the health of the local
directories of a node. This specifically manages nodemanager-local-dirs and
nodemanager-log-dirs by periodically checking their health.</div>
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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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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
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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/yarn/server/nodemanager/LocalDirsHandlerService.html#LocalDirsHandlerService--">LocalDirsHandlerService</a></span>()</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#LocalDirsHandlerService-org.apache.hadoop.yarn.server.nodemanager.metrics.NodeManagerMetrics-">LocalDirsHandlerService</a></span>(<a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/metrics/NodeManagerMetrics.html" title="class in org.apache.hadoop.yarn.server.nodemanager.metrics">NodeManagerMetrics</a>&nbsp;nodeManagerMetrics)</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="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></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>
<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>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#areDisksHealthy--">areDisksHealthy</a></span>()</code>
<div class="block">The minimum fraction of number of disks needed to be healthy for a node to
be considered healthy in terms of disks is configured using
<code>YarnConfiguration.NM_MIN_HEALTHY_DISKS_FRACTION</code>, with a default
value of <code>YarnConfiguration.DEFAULT_NM_MIN_HEALTHY_DISKS_FRACTION</code>.</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/yarn/server/nodemanager/LocalDirsHandlerService.html#checkDirs--">checkDirs</a></span>()</code>&nbsp;</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/yarn/server/nodemanager/LocalDirsHandlerService.html#deregisterLocalDirsChangeListener-org.apache.hadoop.yarn.server.nodemanager.DirectoryCollection.DirsChangeListener-">deregisterLocalDirsChangeListener</a></span>(<a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/DirectoryCollection.DirsChangeListener.html" title="interface in org.apache.hadoop.yarn.server.nodemanager">DirectoryCollection.DirsChangeListener</a>&nbsp;listener)</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/yarn/server/nodemanager/LocalDirsHandlerService.html#deregisterLogDirsChangeListener-org.apache.hadoop.yarn.server.nodemanager.DirectoryCollection.DirsChangeListener-">deregisterLogDirsChangeListener</a></span>(<a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/DirectoryCollection.DirsChangeListener.html" title="interface in org.apache.hadoop.yarn.server.nodemanager">DirectoryCollection.DirsChangeListener</a>&nbsp;listener)</code>&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</a>&lt;org.apache.hadoop.fs.Path&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#getAllLocalPathsForRead-java.lang.String-">getAllLocalPathsForRead</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;pathStr)</code>&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><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>&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;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#getDiskFullLocalDirs--">getDiskFullLocalDirs</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><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>&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;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#getDiskFullLogDirs--">getDiskFullLogDirs</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i7" 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/LocalDirsHandlerService.html#getDisksHealthReport-boolean-">getDisksHealthReport</a></span>(boolean&nbsp;listGoodDirs)</code>
<div class="block">Function to generate a report on the state of the disks.</div>
</td>
</tr>
<tr id="i8" 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/LocalDirsHandlerService.html#getHealthReport--">getHealthReport</a></span>()</code>
<div class="block">Returns output from health check.</div>
</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/yarn/server/nodemanager/LocalDirsHandlerService.html#getLastDisksCheckTime--">getLastDisksCheckTime</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#getLastHealthReportTime--">getLastHealthReportTime</a></span>()</code>
<div class="block">Returns time stamp when node health check was last run.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code><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>&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;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#getLocalDirs--">getLocalDirs</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code><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>&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;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#getLocalDirsForCleanup--">getLocalDirsForCleanup</a></span>()</code>
<div class="block">Function to get the local dirs which should be considered when cleaning up
resources.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code><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>&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;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#getLocalDirsForRead--">getLocalDirsForRead</a></span>()</code>
<div class="block">Function to get the local dirs which should be considered for reading
existing files on disk.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#getLocalPathForRead-java.lang.String-">getLocalPathForRead</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;pathStr)</code>&nbsp;</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#getLocalPathForWrite-java.lang.String-">getLocalPathForWrite</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;pathStr)</code>&nbsp;</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#getLocalPathForWrite-java.lang.String-long-boolean-">getLocalPathForWrite</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;pathStr,
long&nbsp;size,
boolean&nbsp;checkWrite)</code>&nbsp;</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code><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>&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;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#getLogDirs--">getLogDirs</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code><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>&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;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#getLogDirsForCleanup--">getLogDirsForCleanup</a></span>()</code>
<div class="block">Function to get the log dirs which should be considered when cleaning up
resources.</div>
</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code><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>&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;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#getLogDirsForRead--">getLogDirsForRead</a></span>()</code>
<div class="block">Function to get the log dirs which should be considered for reading
existing files on disk.</div>
</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#getLogPathForWrite-java.lang.String-boolean-">getLogPathForWrite</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;pathStr,
boolean&nbsp;checkWrite)</code>&nbsp;</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#getLogPathToRead-java.lang.String-">getLogPathToRead</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;pathStr)</code>&nbsp;</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#isGoodLocalDir-java.lang.String-">isGoodLocalDir</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;path)</code>&nbsp;</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#isGoodLogDir-java.lang.String-">isGoodLogDir</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;path)</code>&nbsp;</td>
</tr>
<tr id="i24" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#isHealthy--">isHealthy</a></span>()</code>
<div class="block">Gets whether the node is healthy or not.</div>
</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/yarn/server/nodemanager/LocalDirsHandlerService.html#registerLocalDirsChangeListener-org.apache.hadoop.yarn.server.nodemanager.DirectoryCollection.DirsChangeListener-">registerLocalDirsChangeListener</a></span>(<a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/DirectoryCollection.DirsChangeListener.html" title="interface in org.apache.hadoop.yarn.server.nodemanager">DirectoryCollection.DirsChangeListener</a>&nbsp;listener)</code>&nbsp;</td>
</tr>
<tr id="i26" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#registerLogDirsChangeListener-org.apache.hadoop.yarn.server.nodemanager.DirectoryCollection.DirsChangeListener-">registerLogDirsChangeListener</a></span>(<a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/DirectoryCollection.DirsChangeListener.html" title="interface in org.apache.hadoop.yarn.server.nodemanager">DirectoryCollection.DirsChangeListener</a>&nbsp;listener)</code>&nbsp;</td>
</tr>
<tr id="i27" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#serviceInit-org.apache.hadoop.conf.Configuration-">serviceInit</a></span>(org.apache.hadoop.conf.Configuration&nbsp;config)</code>
<div class="block">Method which initializes the timertask and its interval time.</div>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#serviceStart--">serviceStart</a></span>()</code>
<div class="block">Method used to start the disk health monitoring, if enabled.</div>
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<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#serviceStop--">serviceStop</a></span>()</code>
<div class="block">Method used to terminate the disk health monitoring service.</div>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.html#updateMetrics--">updateMetrics</a></span>()</code>&nbsp;</td>
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<pre>public&nbsp;LocalDirsHandlerService()</pre>
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<pre>public&nbsp;LocalDirsHandlerService(<a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/metrics/NodeManagerMetrics.html" title="class in org.apache.hadoop.yarn.server.nodemanager.metrics">NodeManagerMetrics</a>&nbsp;nodeManagerMetrics)</pre>
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<pre>protected&nbsp;void&nbsp;serviceInit(org.apache.hadoop.conf.Configuration&nbsp;config)
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<div class="block">Method which initializes the timertask and its interval time.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>serviceInit</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.service.AbstractService</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
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<div class="block">Method used to start the disk health monitoring, if enabled.</div>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>serviceStart</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.service.AbstractService</code></dd>
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<div class="block">Method used to terminate the disk health monitoring service.</div>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>serviceStop</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.service.AbstractService</code></dd>
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<pre>public&nbsp;void&nbsp;deregisterLocalDirsChangeListener(<a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/DirectoryCollection.DirsChangeListener.html" title="interface in org.apache.hadoop.yarn.server.nodemanager">DirectoryCollection.DirsChangeListener</a>&nbsp;listener)</pre>
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<pre>public&nbsp;void&nbsp;deregisterLogDirsChangeListener(<a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/DirectoryCollection.DirsChangeListener.html" title="interface in org.apache.hadoop.yarn.server.nodemanager">DirectoryCollection.DirsChangeListener</a>&nbsp;listener)</pre>
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<pre>public&nbsp;<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>&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;&nbsp;getLocalDirs()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the good/valid local directories based on disks' health</dd>
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<pre>public&nbsp;<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>&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;&nbsp;getLogDirs()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the good/valid log directories based on disks' health</dd>
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<pre>public&nbsp;<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>&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;&nbsp;getDiskFullLocalDirs()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the local directories which have no disk space</dd>
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<pre>public&nbsp;<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>&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;&nbsp;getDiskFullLogDirs()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the log directories that have no disk space</dd>
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<pre>public&nbsp;<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>&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;&nbsp;getLocalDirsForRead()</pre>
<div class="block">Function to get the local dirs which should be considered for reading
existing files on disk. Contains the good local dirs and the local dirs
that have reached the disk space limit</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the local dirs which should be considered for reading</dd>
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<pre>public&nbsp;<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>&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;&nbsp;getLocalDirsForCleanup()</pre>
<div class="block">Function to get the local dirs which should be considered when cleaning up
resources. Contains the good local dirs and the local dirs that have reached
the disk space limit</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the local dirs which should be considered for cleaning up</dd>
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<pre>public&nbsp;<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>&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;&nbsp;getLogDirsForRead()</pre>
<div class="block">Function to get the log dirs which should be considered for reading
existing files on disk. Contains the good log dirs and the log dirs that
have reached the disk space limit</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the log dirs which should be considered for reading</dd>
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<pre>public&nbsp;<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>&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;&nbsp;getLogDirsForCleanup()</pre>
<div class="block">Function to get the log dirs which should be considered when cleaning up
resources. Contains the good log dirs and the log dirs that have reached
the disk space limit</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the log dirs which should be considered for cleaning up</dd>
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<pre>public&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;getDisksHealthReport(boolean&nbsp;listGoodDirs)</pre>
<div class="block">Function to generate a report on the state of the disks.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>listGoodDirs</code> - flag to determine whether the report should report the state of
good dirs or failed dirs</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the health report of nm-local-dirs and nm-log-dirs</dd>
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<pre>public&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;getHealthReport()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/health/HealthReporter.html#getHealthReport--">HealthReporter</a></code></span></div>
<div class="block">Returns output from health check. If node is healthy then an empty string
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/health/HealthReporter.html#getHealthReport--">getHealthReport</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/health/HealthReporter.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.health">HealthReporter</a></code></dd>
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<pre>public&nbsp;boolean&nbsp;areDisksHealthy()</pre>
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value of <code>YarnConfiguration.DEFAULT_NM_MIN_HEALTHY_DISKS_FRACTION</code>.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><em>false</em> if either (a) more than the allowed percentage of
nm-local-dirs failed or (b) more than the allowed percentage of
nm-log-dirs failed.</dd>
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<div class="block">Gets whether the node is healthy or not.</div>
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<dd><code><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/health/HealthReporter.html#isHealthy--">isHealthy</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/health/HealthReporter.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.health">HealthReporter</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
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<pre>public&nbsp;long&nbsp;getLastDisksCheckTime()</pre>
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<pre>public&nbsp;long&nbsp;getLastHealthReportTime()</pre>
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<div class="block">Returns time stamp when node health check was last run.</div>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/health/HealthReporter.html#getLastHealthReportTime--">getLastHealthReportTime</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/hadoop/yarn/server/nodemanager/health/HealthReporter.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.health">HealthReporter</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>timestamp when node health script was last run</dd>
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<pre>public&nbsp;boolean&nbsp;isGoodLocalDir(<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;path)</pre>
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<pre>public&nbsp;void&nbsp;checkDirs()</pre>
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<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getLocalPathForWrite(<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;pathStr)
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<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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<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getLocalPathForWrite(<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;pathStr,
long&nbsp;size,
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<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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<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getLocalPathForRead(<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;pathStr)
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>
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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>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</a>&lt;org.apache.hadoop.fs.Path&gt;&nbsp;getAllLocalPathsForRead(<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;pathStr)
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>
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<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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<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getLogPathForWrite(<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;pathStr,
boolean&nbsp;checkWrite)
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>
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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>
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<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getLogPathToRead(<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;pathStr)
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>
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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>
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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;validatePaths(<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;paths)</pre>
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<pre>protected&nbsp;void&nbsp;updateMetrics()</pre>
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