| <!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_412) on Fri May 17 13:59:07 UTC 2024 --> |
| <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> |
| <title>ClusterMetrics (Apache Hadoop Main 3.5.0-SNAPSHOT API)</title> |
| <meta name="date" content="2024-05-17"> |
| <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="ClusterMetrics (Apache Hadoop Main 3.5.0-SNAPSHOT API)"; |
| } |
| } |
| catch(err) { |
| } |
| //--> |
| var methods = {"i0":10,"i1":10,"i2":10,"i3":10,"i4":10,"i5":10,"i6":10,"i7":10,"i8":10,"i9":10,"i10":10,"i11":10,"i12":10,"i13":10,"i14":10}; |
| var tabs = {65535:["t0","All Methods"],2:["t2","Instance 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/ClusterMetrics.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><a href="../../../../org/apache/hadoop/mapreduce/Cluster.html" title="class in org.apache.hadoop.mapreduce"><span class="typeNameLink">Prev Class</span></a></li> |
| <li><a href="../../../../org/apache/hadoop/mapreduce/Counter.html" title="interface in org.apache.hadoop.mapreduce"><span class="typeNameLink">Next Class</span></a></li> |
| </ul> |
| <ul class="navList"> |
| <li><a href="../../../../index.html?org/apache/hadoop/mapreduce/ClusterMetrics.html" target="_top">Frames</a></li> |
| <li><a href="ClusterMetrics.html" target="_top">No Frames</a></li> |
| </ul> |
| <ul class="navList" id="allclasses_navbar_top"> |
| <li><a href="../../../../allclasses-noframe.html">All 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: </li> |
| <li>Nested | </li> |
| <li>Field | </li> |
| <li><a href="#constructor.summary">Constr</a> | </li> |
| <li><a href="#method.summary">Method</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li>Field | </li> |
| <li><a href="#constructor.detail">Constr</a> | </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.mapreduce</div> |
| <h2 title="Class ClusterMetrics" class="title">Class ClusterMetrics</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.mapreduce.ClusterMetrics</li> |
| </ul> |
| </li> |
| </ul> |
| <div class="description"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>@InterfaceAudience.Public |
| @InterfaceStability.Evolving |
| public class <span class="typeNameLabel">ClusterMetrics</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> |
| implements <a href="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</a></pre> |
| <div class="block">Status information on the current state of the Map-Reduce cluster. |
| |
| <p><code>ClusterMetrics</code> provides clients with information such as: |
| <ol> |
| <li> |
| Size of the cluster. |
| </li> |
| <li> |
| Number of blacklisted and decommissioned trackers. |
| </li> |
| <li> |
| Slot capacity of the cluster. |
| </li> |
| <li> |
| The number of currently occupied/reserved map and reduce slots. |
| </li> |
| <li> |
| The number of currently running map and reduce tasks. |
| </li> |
| <li> |
| The number of job submissions. |
| </li> |
| </ol> |
| |
| <p>Clients can query for the latest <code>ClusterMetrics</code>, via |
| <a href="../../../../org/apache/hadoop/mapreduce/Cluster.html#getClusterStatus--"><code>Cluster.getClusterStatus()</code></a>.</p></div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../org/apache/hadoop/mapreduce/Cluster.html" title="class in org.apache.hadoop.mapreduce"><code>Cluster</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ======== 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"> </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/mapreduce/ClusterMetrics.html#ClusterMetrics--">ClusterMetrics</a></span>()</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#ClusterMetrics-int-int-int-int-int-int-int-int-int-int-int-int-">ClusterMetrics</a></span>(int runningMaps, |
| int runningReduces, |
| int occupiedMapSlots, |
| int occupiedReduceSlots, |
| int reservedMapSlots, |
| int reservedReduceSlots, |
| int mapSlots, |
| int reduceSlots, |
| int totalJobSubmissions, |
| int numTrackers, |
| int numBlacklistedTrackers, |
| int numDecommissionedNodes)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#ClusterMetrics-int-int-int-int-int-int-int-int-int-int-int-int-int-">ClusterMetrics</a></span>(int runningMaps, |
| int runningReduces, |
| int occupiedMapSlots, |
| int occupiedReduceSlots, |
| int reservedMapSlots, |
| int reservedReduceSlots, |
| int mapSlots, |
| int reduceSlots, |
| int totalJobSubmissions, |
| int numTrackers, |
| int numBlacklistedTrackers, |
| int numGraylistedTrackers, |
| int numDecommissionedNodes)</code> </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"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#getBlackListedTaskTrackerCount--">getBlackListedTaskTrackerCount</a></span>()</code> |
| <div class="block">Get the number of blacklisted trackers in the cluster.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#getDecommissionedTaskTrackerCount--">getDecommissionedTaskTrackerCount</a></span>()</code> |
| <div class="block">Get the number of decommissioned trackers in the cluster.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#getGrayListedTaskTrackerCount--">getGrayListedTaskTrackerCount</a></span>()</code> |
| <div class="block">Get the number of graylisted trackers in the cluster.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#getMapSlotCapacity--">getMapSlotCapacity</a></span>()</code> |
| <div class="block">Get the total number of map slots in the cluster.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#getOccupiedMapSlots--">getOccupiedMapSlots</a></span>()</code> |
| <div class="block">Get number of occupied map slots in the cluster.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#getOccupiedReduceSlots--">getOccupiedReduceSlots</a></span>()</code> |
| <div class="block">Get the number of occupied reduce slots in the cluster.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#getReduceSlotCapacity--">getReduceSlotCapacity</a></span>()</code> |
| <div class="block">Get the total number of reduce slots in the cluster.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#getReservedMapSlots--">getReservedMapSlots</a></span>()</code> |
| <div class="block">Get number of reserved map slots in the cluster.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#getReservedReduceSlots--">getReservedReduceSlots</a></span>()</code> |
| <div class="block">Get the number of reserved reduce slots in the cluster.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#getRunningMaps--">getRunningMaps</a></span>()</code> |
| <div class="block">Get the number of running map tasks in the cluster.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#getRunningReduces--">getRunningReduces</a></span>()</code> |
| <div class="block">Get the number of running reduce tasks in the cluster.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#getTaskTrackerCount--">getTaskTrackerCount</a></span>()</code> |
| <div class="block">Get the number of active trackers in the cluster.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#getTotalJobSubmissions--">getTotalJobSubmissions</a></span>()</code> |
| <div class="block">Get the total number of job submissions in the cluster.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#readFields-java.io.DataInput-">readFields</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</a> in)</code> |
| <div class="block">Deserialize the fields of this object from <code>in</code>.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/ClusterMetrics.html#write-java.io.DataOutput-">write</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</a> out)</code> |
| <div class="block">Serialize the fields of this object to <code>out</code>.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class 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#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.detail"> |
| <!-- --> |
| </a> |
| <h3>Constructor Detail</h3> |
| <a name="ClusterMetrics--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>ClusterMetrics</h4> |
| <pre>public ClusterMetrics()</pre> |
| </li> |
| </ul> |
| <a name="ClusterMetrics-int-int-int-int-int-int-int-int-int-int-int-int-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>ClusterMetrics</h4> |
| <pre>public ClusterMetrics(int runningMaps, |
| int runningReduces, |
| int occupiedMapSlots, |
| int occupiedReduceSlots, |
| int reservedMapSlots, |
| int reservedReduceSlots, |
| int mapSlots, |
| int reduceSlots, |
| int totalJobSubmissions, |
| int numTrackers, |
| int numBlacklistedTrackers, |
| int numDecommissionedNodes)</pre> |
| </li> |
| </ul> |
| <a name="ClusterMetrics-int-int-int-int-int-int-int-int-int-int-int-int-int-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>ClusterMetrics</h4> |
| <pre>public ClusterMetrics(int runningMaps, |
| int runningReduces, |
| int occupiedMapSlots, |
| int occupiedReduceSlots, |
| int reservedMapSlots, |
| int reservedReduceSlots, |
| int mapSlots, |
| int reduceSlots, |
| int totalJobSubmissions, |
| int numTrackers, |
| int numBlacklistedTrackers, |
| int numGraylistedTrackers, |
| int numDecommissionedNodes)</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ============ METHOD DETAIL ========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.detail"> |
| <!-- --> |
| </a> |
| <h3>Method Detail</h3> |
| <a name="getRunningMaps--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getRunningMaps</h4> |
| <pre>public int getRunningMaps()</pre> |
| <div class="block">Get the number of running map tasks in the cluster.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>running maps</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getRunningReduces--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getRunningReduces</h4> |
| <pre>public int getRunningReduces()</pre> |
| <div class="block">Get the number of running reduce tasks in the cluster.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>running reduces</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getOccupiedMapSlots--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getOccupiedMapSlots</h4> |
| <pre>public int getOccupiedMapSlots()</pre> |
| <div class="block">Get number of occupied map slots in the cluster.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>occupied map slot count</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getOccupiedReduceSlots--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getOccupiedReduceSlots</h4> |
| <pre>public int getOccupiedReduceSlots()</pre> |
| <div class="block">Get the number of occupied reduce slots in the cluster.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>occupied reduce slot count</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getReservedMapSlots--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getReservedMapSlots</h4> |
| <pre>public int getReservedMapSlots()</pre> |
| <div class="block">Get number of reserved map slots in the cluster.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>reserved map slot count</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getReservedReduceSlots--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getReservedReduceSlots</h4> |
| <pre>public int getReservedReduceSlots()</pre> |
| <div class="block">Get the number of reserved reduce slots in the cluster.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>reserved reduce slot count</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getMapSlotCapacity--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getMapSlotCapacity</h4> |
| <pre>public int getMapSlotCapacity()</pre> |
| <div class="block">Get the total number of map slots in the cluster.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>map slot capacity</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getReduceSlotCapacity--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getReduceSlotCapacity</h4> |
| <pre>public int getReduceSlotCapacity()</pre> |
| <div class="block">Get the total number of reduce slots in the cluster.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>reduce slot capacity</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getTotalJobSubmissions--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getTotalJobSubmissions</h4> |
| <pre>public int getTotalJobSubmissions()</pre> |
| <div class="block">Get the total number of job submissions in the cluster.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>total number of job submissions</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getTaskTrackerCount--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getTaskTrackerCount</h4> |
| <pre>public int getTaskTrackerCount()</pre> |
| <div class="block">Get the number of active trackers in the cluster.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>active tracker count.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getBlackListedTaskTrackerCount--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getBlackListedTaskTrackerCount</h4> |
| <pre>public int getBlackListedTaskTrackerCount()</pre> |
| <div class="block">Get the number of blacklisted trackers in the cluster.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>blacklisted tracker count</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getGrayListedTaskTrackerCount--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getGrayListedTaskTrackerCount</h4> |
| <pre>public int getGrayListedTaskTrackerCount()</pre> |
| <div class="block">Get the number of graylisted trackers in the cluster.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>graylisted tracker count</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getDecommissionedTaskTrackerCount--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getDecommissionedTaskTrackerCount</h4> |
| <pre>public int getDecommissionedTaskTrackerCount()</pre> |
| <div class="block">Get the number of decommissioned trackers in the cluster.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>decommissioned tracker count</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="readFields-java.io.DataInput-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>readFields</h4> |
| <pre>public void readFields(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</a> in) |
| 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"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../org/apache/hadoop/io/Writable.html#readFields-java.io.DataInput-">Writable</a></code></span></div> |
| <div class="block">Deserialize the fields of this object from <code>in</code>. |
| |
| <p>For efficiency, implementations should attempt to re-use storage in the |
| existing object where possible.</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../org/apache/hadoop/io/Writable.html#readFields-java.io.DataInput-">readFields</a></code> in interface <code><a href="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>in</code> - <code>DataInput</code> to deseriablize this object from.</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> - any other problem for readFields.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="write-java.io.DataOutput-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>write</h4> |
| <pre>public void write(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</a> out) |
| 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"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../org/apache/hadoop/io/Writable.html#write-java.io.DataOutput-">Writable</a></code></span></div> |
| <div class="block">Serialize the fields of this object to <code>out</code>.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../org/apache/hadoop/io/Writable.html#write-java.io.DataOutput-">write</a></code> in interface <code><a href="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>out</code> - <code>DataOuput</code> to serialize this object into.</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> - any other problem for write.</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/ClusterMetrics.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><a href="../../../../org/apache/hadoop/mapreduce/Cluster.html" title="class in org.apache.hadoop.mapreduce"><span class="typeNameLink">Prev Class</span></a></li> |
| <li><a href="../../../../org/apache/hadoop/mapreduce/Counter.html" title="interface in org.apache.hadoop.mapreduce"><span class="typeNameLink">Next Class</span></a></li> |
| </ul> |
| <ul class="navList"> |
| <li><a href="../../../../index.html?org/apache/hadoop/mapreduce/ClusterMetrics.html" target="_top">Frames</a></li> |
| <li><a href="ClusterMetrics.html" target="_top">No Frames</a></li> |
| </ul> |
| <ul class="navList" id="allclasses_navbar_bottom"> |
| <li><a href="../../../../allclasses-noframe.html">All 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: </li> |
| <li>Nested | </li> |
| <li>Field | </li> |
| <li><a href="#constructor.summary">Constr</a> | </li> |
| <li><a href="#method.summary">Method</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li>Field | </li> |
| <li><a href="#constructor.detail">Constr</a> | </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 © 2024 <a href="https://www.apache.org">Apache Software Foundation</a>. All rights reserved.</small></p> |
| </body> |
| </html> |
