Google Git
Sign in
apache / hadoop-site / 952d547359cafef280f0a0324055741b2ed55be1 / . / content / docs / r3.3.1 / hadoop-yarn / hadoop-yarn-server / hadoop-yarn-server-nodemanager / apidocs / org / apache / hadoop / yarn / server / nodemanager / nodelabels / AbstractNodeDescriptorsProvider.html
blob: b39d541e09dc85fad8fa1bdf607ac3697de60883 [file] [log] [blame]
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!-- NewPage -->
<html lang="en">
<head>
<!-- Generated by javadoc (1.8.0_292) on Tue Jun 15 06:11:23 GMT 2021 -->
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>AbstractNodeDescriptorsProvider (Apache Hadoop YARN NodeManager 3.3.1 API)</title>
<meta name="date" content="2021-06-15">
<link rel="stylesheet" type="text/css" href="../../../../../../../stylesheet.css" title="Style">
<script type="text/javascript" src="../../../../../../../script.js"></script>
</head>
<body>
<script type="text/javascript"><!--
try {
if (location.href.indexOf('is-external=true') == -1) {
parent.document.title="AbstractNodeDescriptorsProvider (Apache Hadoop YARN NodeManager 3.3.1 API)";
}
}
catch(err) {
}
//-->
var methods = {"i0":6,"i1":6,"i2":10,"i3":10,"i4":10,"i5":10,"i6":10,"i7":10,"i8":10,"i9":10,"i10":10};
var tabs = {65535:["t0","All Methods"],2:["t2","Instance Methods"],4:["t3","Abstract Methods"],8:["t4","Concrete Methods"]};
var altColor = "altColor";
var rowColor = "rowColor";
var tableTab = "tableTab";
var activeTableTab = "activeTableTab";
</script>
<noscript>
<div>JavaScript is disabled on your browser.</div>
</noscript>
<!-- ========= START OF TOP NAVBAR ======= -->
<div class="topNav"><a name="navbar.top">
<!-- -->
</a>
<div class="skipNav"><a href="#skip.navbar.top" title="Skip navigation links">Skip navigation links</a></div>
<a name="navbar.top.firstrow">
<!-- -->
</a>
<ul class="navList" title="Navigation">
<li><a href="../../../../../../../overview-summary.html">Overview</a></li>
<li><a href="package-summary.html">Package</a></li>
<li class="navBarCell1Rev">Class</li>
<li><a href="class-use/AbstractNodeDescriptorsProvider.html">Use</a></li>
<li><a href="package-tree.html">Tree</a></li>
<li><a href="../../../../../../../deprecated-list.html">Deprecated</a></li>
<li><a href="../../../../../../../index-all.html">Index</a></li>
<li><a href="../../../../../../../help-doc.html">Help</a></li>
</ul>
</div>
<div class="subNav">
<ul class="navList">
<li>Prev&nbsp;Class</li>
<li><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/ConfigurationNodeAttributesProvider.html" title="class in org.apache.hadoop.yarn.server.nodemanager.nodelabels"><span class="typeNameLink">Next&nbsp;Class</span></a></li>
</ul>
<ul class="navList">
<li><a href="../../../../../../../index.html?org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html" target="_top">Frames</a></li>
<li><a href="AbstractNodeDescriptorsProvider.html" target="_top">No&nbsp;Frames</a></li>
</ul>
<ul class="navList" id="allclasses_navbar_top">
<li><a href="../../../../../../../allclasses-noframe.html">All&nbsp;Classes</a></li>
</ul>
<div>
<script type="text/javascript"><!--
allClassesLink = document.getElementById("allclasses_navbar_top");
if(window==top) {
allClassesLink.style.display = "block";
}
else {
allClassesLink.style.display = "none";
}
//-->
</script>
</div>
<div>
<ul class="subNavList">
<li>Summary:&nbsp;</li>
<li>Nested&nbsp;|&nbsp;</li>
<li><a href="#field.summary">Field</a>&nbsp;|&nbsp;</li>
<li><a href="#constructor.summary">Constr</a>&nbsp;|&nbsp;</li>
<li><a href="#method.summary">Method</a></li>
</ul>
<ul class="subNavList">
<li>Detail:&nbsp;</li>
<li><a href="#field.detail">Field</a>&nbsp;|&nbsp;</li>
<li><a href="#constructor.detail">Constr</a>&nbsp;|&nbsp;</li>
<li><a href="#method.detail">Method</a></li>
</ul>
</div>
<a name="skip.navbar.top">
<!-- -->
</a></div>
<!-- ========= END OF TOP NAVBAR ========= -->
<!-- ======== START OF CLASS DATA ======== -->
<div class="header">
<div class="subTitle">org.apache.hadoop.yarn.server.nodemanager.nodelabels</div>
<h2 title="Class AbstractNodeDescriptorsProvider" class="title">Class AbstractNodeDescriptorsProvider&lt;T&gt;</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
<li>
<ul class="inheritance">
<li>org.apache.hadoop.service.AbstractService</li>
<li>
<ul class="inheritance">
<li>org.apache.hadoop.yarn.server.nodemanager.nodelabels.AbstractNodeDescriptorsProvider&lt;T&gt;</li>
</ul>
</li>
</ul>
</li>
</ul>
<div class="description">
<ul class="blockList">
<li class="blockList">
<dl>
<dt>All Implemented Interfaces:</dt>
<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/nodelabels/NodeDescriptorsProvider.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.nodelabels">NodeDescriptorsProvider</a>&lt;T&gt;</dd>
</dl>
<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/NodeAttributesProvider.html" title="class in org.apache.hadoop.yarn.server.nodemanager.nodelabels">NodeAttributesProvider</a>, <a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/NodeLabelsProvider.html" title="class in org.apache.hadoop.yarn.server.nodemanager.nodelabels">NodeLabelsProvider</a></dd>
</dl>
<hr>
<br>
<pre>public abstract class <span class="typeNameLabel">AbstractNodeDescriptorsProvider&lt;T&gt;</span>
extends org.apache.hadoop.service.AbstractService
implements <a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/NodeDescriptorsProvider.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.nodelabels">NodeDescriptorsProvider</a>&lt;T&gt;</pre>
<div class="block">Provides base implementation of NodeDescriptorsProvider with Timer and
expects subclass to provide TimerTask which can fetch node descriptors.</div>
</li>
</ul>
</div>
<div class="summary">
<ul class="blockList">
<li class="blockList">
<!-- ======== NESTED CLASS SUMMARY ======== -->
<ul class="blockList">
<li class="blockList"><a name="nested.class.summary">
<!-- -->
</a>
<h3>Nested Class Summary</h3>
<ul class="blockList">
<li class="blockList"><a name="nested.classes.inherited.from.class.org.apache.hadoop.service.Service">
<!-- -->
</a>
<h3>Nested classes/interfaces inherited from interface&nbsp;org.apache.hadoop.service.Service</h3>
<code>org.apache.hadoop.service.Service.STATE</code></li>
</ul>
</li>
</ul>
<!-- =========== FIELD SUMMARY =========== -->
<ul class="blockList">
<li class="blockList"><a name="field.summary">
<!-- -->
</a>
<h3>Field Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation">
<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html#DISABLE_NODE_DESCRIPTORS_PROVIDER_FETCH_TIMER">DISABLE_NODE_DESCRIPTORS_PROVIDER_FETCH_TIMER</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/locks/Lock.html?is-external=true" title="class or interface in java.util.concurrent.locks">Lock</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html#readLock">readLock</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimerTask.html?is-external=true" title="class or interface in java.util">TimerTask</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html#timerTask">timerTask</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/locks/Lock.html?is-external=true" title="class or interface in java.util.concurrent.locks">Lock</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html#writeLock">writeLock</a></span></code>&nbsp;</td>
</tr>
</table>
</li>
</ul>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<ul class="blockList">
<li class="blockList"><a name="constructor.summary">
<!-- -->
</a>
<h3>Constructor Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html#AbstractNodeDescriptorsProvider-java.lang.String-">AbstractNodeDescriptorsProvider</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;name)</code>&nbsp;</td>
</tr>
</table>
</li>
</ul>
<!-- ========== METHOD SUMMARY =========== -->
<ul class="blockList">
<li class="blockList"><a name="method.summary">
<!-- -->
</a>
<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><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>protected abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html#cleanUp--">cleanUp</a></span>()</code>
<div class="block">method for subclasses to cleanup.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>abstract <a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimerTask.html?is-external=true" title="class or interface in java.util">TimerTask</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html#createTimerTask--">createTimerTask</a></span>()</code>
<div class="block">Creates a timer task which be scheduled periodically by the provider,
and the task is responsible to update node descriptors to the provider.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><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="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html" title="type parameter in AbstractNodeDescriptorsProvider">T</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html#getDescriptors--">getDescriptors</a></span>()</code>
<div class="block">Provides the descriptors.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html#getIntervalTime--">getIntervalTime</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Timer.html?is-external=true" title="class or interface in java.util">Timer</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html#getScheduler--">getScheduler</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i5" 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/nodelabels/AbstractNodeDescriptorsProvider.html#serviceInit-org.apache.hadoop.conf.Configuration-">serviceInit</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html#serviceStart--">serviceStart</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i7" 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/nodelabels/AbstractNodeDescriptorsProvider.html#serviceStop--">serviceStop</a></span>()</code>
<div class="block">terminate the timer</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/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html#setDescriptors-java.util.Set-">setDescriptors</a></span>(<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="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html" title="type parameter in AbstractNodeDescriptorsProvider">T</a>&gt;&nbsp;descriptorsSet)</code>
<div class="block">Sets a set of descriptors to the provider.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html#setIntervalTime-long-">setIntervalTime</a></span>(long&nbsp;intervalMS)</code>&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html#verifyConfiguredScript-java.lang.String-">verifyConfiguredScript</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;scriptPath)</code>
<div class="block">Method used to determine if or not node descriptors fetching script is
configured and whether it is fit to run.</div>
</td>
</tr>
</table>
<ul class="blockList">
<li class="blockList"><a name="methods.inherited.from.class.org.apache.hadoop.service.AbstractService">
<!-- -->
</a>
<h3>Methods inherited from class&nbsp;org.apache.hadoop.service.AbstractService</h3>
<code>close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop</code></li>
</ul>
<ul class="blockList">
<li class="blockList"><a name="methods.inherited.from.class.java.lang.Object">
<!-- -->
</a>
<h3>Methods inherited from class&nbsp;java.lang.<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></h3>
<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#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>
</li>
</ul>
</div>
<div class="details">
<ul class="blockList">
<li class="blockList">
<!-- ============ FIELD DETAIL =========== -->
<ul class="blockList">
<li class="blockList"><a name="field.detail">
<!-- -->
</a>
<h3>Field Detail</h3>
<a name="DISABLE_NODE_DESCRIPTORS_PROVIDER_FETCH_TIMER">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>DISABLE_NODE_DESCRIPTORS_PROVIDER_FETCH_TIMER</h4>
<pre>public static final&nbsp;long DISABLE_NODE_DESCRIPTORS_PROVIDER_FETCH_TIMER</pre>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../../constant-values.html#org.apache.hadoop.yarn.server.nodemanager.nodelabels.AbstractNodeDescriptorsProvider.DISABLE_NODE_DESCRIPTORS_PROVIDER_FETCH_TIMER">Constant Field Values</a></dd>
</dl>
</li>
</ul>
<a name="readLock">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>readLock</h4>
<pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/locks/Lock.html?is-external=true" title="class or interface in java.util.concurrent.locks">Lock</a> readLock</pre>
</li>
</ul>
<a name="writeLock">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>writeLock</h4>
<pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/locks/Lock.html?is-external=true" title="class or interface in java.util.concurrent.locks">Lock</a> writeLock</pre>
</li>
</ul>
<a name="timerTask">
<!-- -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>timerTask</h4>
<pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimerTask.html?is-external=true" title="class or interface in java.util">TimerTask</a> timerTask</pre>
</li>
</ul>
</li>
</ul>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<ul class="blockList">
<li class="blockList"><a name="constructor.detail">
<!-- -->
</a>
<h3>Constructor Detail</h3>
<a name="AbstractNodeDescriptorsProvider-java.lang.String-">
<!-- -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>AbstractNodeDescriptorsProvider</h4>
<pre>public&nbsp;AbstractNodeDescriptorsProvider(<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;name)</pre>
</li>
</ul>
</li>
</ul>
<!-- ============ METHOD DETAIL ========== -->
<ul class="blockList">
<li class="blockList"><a name="method.detail">
<!-- -->
</a>
<h3>Method Detail</h3>
<a name="getIntervalTime--">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getIntervalTime</h4>
<pre>public&nbsp;long&nbsp;getIntervalTime()</pre>
</li>
</ul>
<a name="setIntervalTime-long-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>setIntervalTime</h4>
<pre>public&nbsp;void&nbsp;setIntervalTime(long&nbsp;intervalMS)</pre>
</li>
</ul>
<a name="serviceInit-org.apache.hadoop.conf.Configuration-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>serviceInit</h4>
<pre>protected&nbsp;void&nbsp;serviceInit(org.apache.hadoop.conf.Configuration&nbsp;conf)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>serviceInit</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.service.AbstractService</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd>
</dl>
</li>
</ul>
<a name="serviceStart--">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>serviceStart</h4>
<pre>protected&nbsp;void&nbsp;serviceStart()
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>serviceStart</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.service.AbstractService</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd>
</dl>
</li>
</ul>
<a name="serviceStop--">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>serviceStop</h4>
<pre>protected&nbsp;void&nbsp;serviceStop()
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre>
<div class="block">terminate the timer</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>serviceStop</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.service.AbstractService</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd>
</dl>
</li>
</ul>
<a name="cleanUp--">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>cleanUp</h4>
<pre>protected abstract&nbsp;void&nbsp;cleanUp()
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre>
<div class="block">method for subclasses to cleanup.</div>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd>
</dl>
</li>
</ul>
<a name="getDescriptors--">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getDescriptors</h4>
<pre>public&nbsp;<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="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html" title="type parameter in AbstractNodeDescriptorsProvider">T</a>&gt;&nbsp;getDescriptors()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/NodeDescriptorsProvider.html#getDescriptors--">NodeDescriptorsProvider</a></code></span></div>
<div class="block">Provides the descriptors. The provider is expected to give same
descriptors continuously until there is a change.
If null is returned then an empty set is assumed by the caller.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/NodeDescriptorsProvider.html#getDescriptors--">getDescriptors</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/NodeDescriptorsProvider.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.nodelabels">NodeDescriptorsProvider</a>&lt;<a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html" title="type parameter in AbstractNodeDescriptorsProvider">T</a>&gt;</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Returns output from provider.</dd>
</dl>
</li>
</ul>
<a name="setDescriptors-java.util.Set-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>setDescriptors</h4>
<pre>public&nbsp;void&nbsp;setDescriptors(<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="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html" title="type parameter in AbstractNodeDescriptorsProvider">T</a>&gt;&nbsp;descriptorsSet)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/NodeDescriptorsProvider.html#setDescriptors-java.util.Set-">NodeDescriptorsProvider</a></code></span></div>
<div class="block">Sets a set of descriptors to the provider.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/NodeDescriptorsProvider.html#setDescriptors-java.util.Set-">setDescriptors</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/NodeDescriptorsProvider.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.nodelabels">NodeDescriptorsProvider</a>&lt;<a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html" title="type parameter in AbstractNodeDescriptorsProvider">T</a>&gt;</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>descriptorsSet</code> - node descriptors.</dd>
</dl>
</li>
</ul>
<a name="verifyConfiguredScript-java.lang.String-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>verifyConfiguredScript</h4>
<pre>protected&nbsp;void&nbsp;verifyConfiguredScript(<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;scriptPath)
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">Method used to determine if or not node descriptors fetching script is
configured and whether it is fit to run. Returns true if following
conditions are met:
<ol>
<li>Path to the script is not empty</li>
<li>The script file exists</li>
</ol></div>
<dl>
<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>
</dl>
</li>
</ul>
<a name="getScheduler--">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getScheduler</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Timer.html?is-external=true" title="class or interface in java.util">Timer</a>&nbsp;getScheduler()</pre>
</li>
</ul>
<a name="createTimerTask--">
<!-- -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>createTimerTask</h4>
<pre>public abstract&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimerTask.html?is-external=true" title="class or interface in java.util">TimerTask</a>&nbsp;createTimerTask()</pre>
<div class="block">Creates a timer task which be scheduled periodically by the provider,
and the task is responsible to update node descriptors to the provider.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a timer task.</dd>
</dl>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
<!-- ========= END OF CLASS DATA ========= -->
<!-- ======= START OF BOTTOM NAVBAR ====== -->
<div class="bottomNav"><a name="navbar.bottom">
<!-- -->
</a>
<div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div>
<a name="navbar.bottom.firstrow">
<!-- -->
</a>
<ul class="navList" title="Navigation">
<li><a href="../../../../../../../overview-summary.html">Overview</a></li>
<li><a href="package-summary.html">Package</a></li>
<li class="navBarCell1Rev">Class</li>
<li><a href="class-use/AbstractNodeDescriptorsProvider.html">Use</a></li>
<li><a href="package-tree.html">Tree</a></li>
<li><a href="../../../../../../../deprecated-list.html">Deprecated</a></li>
<li><a href="../../../../../../../index-all.html">Index</a></li>
<li><a href="../../../../../../../help-doc.html">Help</a></li>
</ul>
</div>
<div class="subNav">
<ul class="navList">
<li>Prev&nbsp;Class</li>
<li><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/nodelabels/ConfigurationNodeAttributesProvider.html" title="class in org.apache.hadoop.yarn.server.nodemanager.nodelabels"><span class="typeNameLink">Next&nbsp;Class</span></a></li>
</ul>
<ul class="navList">
<li><a href="../../../../../../../index.html?org/apache/hadoop/yarn/server/nodemanager/nodelabels/AbstractNodeDescriptorsProvider.html" target="_top">Frames</a></li>
<li><a href="AbstractNodeDescriptorsProvider.html" target="_top">No&nbsp;Frames</a></li>
</ul>
<ul class="navList" id="allclasses_navbar_bottom">
<li><a href="../../../../../../../allclasses-noframe.html">All&nbsp;Classes</a></li>
</ul>
<div>
<script type="text/javascript"><!--
allClassesLink = document.getElementById("allclasses_navbar_bottom");
if(window==top) {
allClassesLink.style.display = "block";
}
else {
allClassesLink.style.display = "none";
}
//-->
</script>
</div>
<div>
<ul class="subNavList">
<li>Summary:&nbsp;</li>
<li>Nested&nbsp;|&nbsp;</li>
<li><a href="#field.summary">Field</a>&nbsp;|&nbsp;</li>
<li><a href="#constructor.summary">Constr</a>&nbsp;|&nbsp;</li>
<li><a href="#method.summary">Method</a></li>
</ul>
<ul class="subNavList">
<li>Detail:&nbsp;</li>
<li><a href="#field.detail">Field</a>&nbsp;|&nbsp;</li>
<li><a href="#constructor.detail">Constr</a>&nbsp;|&nbsp;</li>
<li><a href="#method.detail">Method</a></li>
</ul>
</div>
<a name="skip.navbar.bottom">
<!-- -->
</a></div>
<!-- ======== END OF BOTTOM NAVBAR ======= -->
<p class="legalCopy"><small>Copyright &#169; 2008&#x2013;2021 <a href="https://www.apache.org">Apache Software Foundation</a>. All rights reserved.</small></p>
</body>
</html>