| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <!-- NewPage --> |
| <html lang="en"> |
| <head> |
| <META NAME="ROBOTS" CONTENT="NOINDEX"> |
| <link rel="canonical" href="https://ignite.apache.org/releases/1.7.0/javadoc/org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html" /> |
| <!-- Generated by javadoc (version 1.7.0_80) on Mon Aug 01 20:32:33 MSK 2016 --> |
| <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> |
| <title>IgniteHadoopWeightedMapReducePlanner (Ignite 1.7.0)</title> |
| <meta name="date" content="2016-08-01"> |
| <link rel="stylesheet" type="text/css" href="../../../../../javadoc.css" title="Style"> |
| |
| <script> |
| (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ |
| (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), |
| m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) |
| })(window,document,'script','https://www.google-analytics.com/analytics.js','ga'); |
| |
| ga('create', 'UA-61232409-1', 'auto'); |
| ga('send', 'pageview'); |
| |
| </script></head> |
| <body> |
| <script type="text/javascript"><!-- |
| if (location.href.indexOf('is-external=true') == -1) { |
| parent.document.title="IgniteHadoopWeightedMapReducePlanner (Ignite 1.7.0)"; |
| } |
| //--> |
| </script> |
| <noscript> |
| <div>JavaScript is disabled on your browser.</div> |
| </noscript> |
| <!-- ========= START OF TOP NAVBAR ======= --> |
| <div class="topNav"><a name="navbar_top"> |
| <!-- --> |
| </a><a href="#skip-navbar_top" title="Skip navigation links"></a><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/IgniteHadoopWeightedMapReducePlanner.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 class="aboutLanguage"><em>Ignite - In-Memory Data Fabric</em></div> |
| </div> |
| <div class="subNav"> |
| <ul class="navList"> |
| <li><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopMapReducePlanner.html" title="class in org.apache.ignite.hadoop.mapreduce"><span class="strong">Prev Class</span></a></li> |
| <li>Next Class</li> |
| </ul> |
| <ul class="navList"> |
| <li><a href="../../../../../index.html?org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html" target="_top">Frames</a></li> |
| <li><a href="IgniteHadoopWeightedMapReducePlanner.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><a href="#field_summary">Field</a> | </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><a href="#field_detail">Field</a> | </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.ignite.hadoop.mapreduce</div> |
| <h2 title="Class IgniteHadoopWeightedMapReducePlanner" class="title">Class IgniteHadoopWeightedMapReducePlanner</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li><a href="http://docs.oracle.com/javase/7/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.ignite.internal.processors.hadoop.planner.HadoopAbstractMapReducePlanner</li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.ignite.hadoop.mapreduce.IgniteHadoopWeightedMapReducePlanner</li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <div class="description"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd>org.apache.ignite.internal.processors.hadoop.HadoopMapReducePlanner</dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>public class <span class="strong">IgniteHadoopWeightedMapReducePlanner</span> |
| extends org.apache.ignite.internal.processors.hadoop.planner.HadoopAbstractMapReducePlanner</pre> |
| <div class="block">Map-reduce planner which assigns mappers and reducers based on their "weights". Weight describes how much resources |
| are required to execute particular map or reduce task. |
| <p> |
| Plan creation consists of two steps: assigning mappers and assigning reducers. |
| <p> |
| Mappers are assigned based on input split data location. For each input split we search for nodes where |
| its data is stored. Planner tries to assign mappers to their affinity nodes first. This process is governed by two |
| properties: |
| <ul> |
| <li><b><code>localMapperWeight</code></b> - weight of a map task when it is executed on an affinity node;</li> |
| <li><b><code>remoteMapperWeight</code></b> - weight of a map task when it is executed on a non-affinity node.</li> |
| </ul> |
| Planning algorithm assign mappers so that total resulting weight on all nodes is minimum possible. |
| <p> |
| Reducers are assigned differently. First we try to distribute reducers across nodes with mappers. This approach |
| could minimize expensive data transfer over network. Reducer assigned to a node with mapper is considered |
| <b><code>local</code></b>. Otherwise it is considered <b><code>remote</code></b>. This process continue until certain weight |
| threshold is reached what means that current node is already too busy and it should not have higher priority over |
| other nodes any more. Threshold can be configured using <b><code>preferLocalReducerThresholdWeight</code></b> property. |
| <p> |
| When local reducer threshold is reached on all nodes, we distribute remaining reducers based on their local and |
| remote weights in the same way as it is done for mappers. This process is governed by two |
| properties: |
| <ul> |
| <li><b><code>localReducerWeight</code></b> - weight of a reduce task when it is executed on a node with mappers;</li> |
| <li><b><code>remoteReducerWeight</code></b> - weight of a map task when it is executed on a node without mappers.</li> |
| </ul></div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="field_summary"> |
| <!-- --> |
| </a> |
| <h3>Field Summary</h3> |
| <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> |
| <caption><span>Fields</span><span class="tabEnd"> </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 int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#DFLT_LOC_MAPPER_WEIGHT">DFLT_LOC_MAPPER_WEIGHT</a></strong></code> |
| <div class="block">Default local mapper weight.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#DFLT_LOC_REDUCER_WEIGHT">DFLT_LOC_REDUCER_WEIGHT</a></strong></code> |
| <div class="block">Default local reducer weight.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#DFLT_PREFER_LOCAL_REDUCER_THRESHOLD_WEIGHT">DFLT_PREFER_LOCAL_REDUCER_THRESHOLD_WEIGHT</a></strong></code> |
| <div class="block">Default reducer migration threshold weight.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#DFLT_RMT_MAPPER_WEIGHT">DFLT_RMT_MAPPER_WEIGHT</a></strong></code> |
| <div class="block">Default remote mapper weight.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#DFLT_RMT_REDUCER_WEIGHT">DFLT_RMT_REDUCER_WEIGHT</a></strong></code> |
| <div class="block">Default remote reducer weight.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="fields_inherited_from_class_org.apache.ignite.internal.processors.hadoop.planner.HadoopAbstractMapReducePlanner"> |
| <!-- --> |
| </a> |
| <h3>Fields inherited from class org.apache.ignite.internal.processors.hadoop.planner.HadoopAbstractMapReducePlanner</h3> |
| <code>ignite, log</code></li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor_summary"> |
| <!-- --> |
| </a> |
| <h3>Constructor Summary</h3> |
| <table class="overviewSummary" 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><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#IgniteHadoopWeightedMapReducePlanner()">IgniteHadoopWeightedMapReducePlanner</a></strong>()</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="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span>Methods</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#getLocalMapperWeight()">getLocalMapperWeight</a></strong>()</code> |
| <div class="block">Get local mapper weight.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#getLocalReducerWeight()">getLocalReducerWeight</a></strong>()</code> |
| <div class="block">Get local reducer weight.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#getPreferLocalReducerThresholdWeight()">getPreferLocalReducerThresholdWeight</a></strong>()</code> |
| <div class="block">Get reducer migration threshold weight.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#getRemoteMapperWeight()">getRemoteMapperWeight</a></strong>()</code> |
| <div class="block">Get remote mapper weight.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#getRemoteReducerWeight()">getRemoteReducerWeight</a></strong>()</code> |
| <div class="block">Get remote reducer weight.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>org.apache.ignite.internal.processors.hadoop.HadoopMapReducePlan</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#preparePlan(org.apache.ignite.internal.processors.hadoop.HadoopJob,%20java.util.Collection,%20org.apache.ignite.internal.processors.hadoop.HadoopMapReducePlan)">preparePlan</a></strong>(org.apache.ignite.internal.processors.hadoop.HadoopJob job, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="../../../../../org/apache/ignite/cluster/ClusterNode.html" title="interface in org.apache.ignite.cluster">ClusterNode</a>> nodes, |
| org.apache.ignite.internal.processors.hadoop.HadoopMapReducePlan oldPlan)</code> |
| <div class="block">Prepares map-reduce execution plan for the given job and topology.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#setLocalMapperWeight(int)">setLocalMapperWeight</a></strong>(int locMapperWeight)</code> |
| <div class="block">Set local mapper weight.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#setLocalReducerWeight(int)">setLocalReducerWeight</a></strong>(int locReducerWeight)</code> |
| <div class="block">Set local reducer weight.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#setPreferLocalReducerThresholdWeight(int)">setPreferLocalReducerThresholdWeight</a></strong>(int reducerMigrationThresholdWeight)</code> |
| <div class="block">Set reducer migration threshold weight.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#setRemoteMapperWeight(int)">setRemoteMapperWeight</a></strong>(int rmtMapperWeight)</code> |
| <div class="block">Set remote mapper weight.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#setRemoteReducerWeight(int)">setRemoteReducerWeight</a></strong>(int rmtReducerWeight)</code> |
| <div class="block">Set remote reducer weight.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#toString()">toString</a></strong>()</code></td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods_inherited_from_class_org.apache.ignite.internal.processors.hadoop.planner.HadoopAbstractMapReducePlanner"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.ignite.internal.processors.hadoop.planner.HadoopAbstractMapReducePlanner</h3> |
| <code>groupByHost, topology</code></li> |
| </ul> |
| <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="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" 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="DFLT_LOC_MAPPER_WEIGHT"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>DFLT_LOC_MAPPER_WEIGHT</h4> |
| <pre>public static final int DFLT_LOC_MAPPER_WEIGHT</pre> |
| <div class="block">Default local mapper weight.</div> |
| <dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../constant-values.html#org.apache.ignite.hadoop.mapreduce.IgniteHadoopWeightedMapReducePlanner.DFLT_LOC_MAPPER_WEIGHT">Constant Field Values</a></dd></dl> |
| </li> |
| </ul> |
| <a name="DFLT_RMT_MAPPER_WEIGHT"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>DFLT_RMT_MAPPER_WEIGHT</h4> |
| <pre>public static final int DFLT_RMT_MAPPER_WEIGHT</pre> |
| <div class="block">Default remote mapper weight.</div> |
| <dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../constant-values.html#org.apache.ignite.hadoop.mapreduce.IgniteHadoopWeightedMapReducePlanner.DFLT_RMT_MAPPER_WEIGHT">Constant Field Values</a></dd></dl> |
| </li> |
| </ul> |
| <a name="DFLT_LOC_REDUCER_WEIGHT"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>DFLT_LOC_REDUCER_WEIGHT</h4> |
| <pre>public static final int DFLT_LOC_REDUCER_WEIGHT</pre> |
| <div class="block">Default local reducer weight.</div> |
| <dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../constant-values.html#org.apache.ignite.hadoop.mapreduce.IgniteHadoopWeightedMapReducePlanner.DFLT_LOC_REDUCER_WEIGHT">Constant Field Values</a></dd></dl> |
| </li> |
| </ul> |
| <a name="DFLT_RMT_REDUCER_WEIGHT"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>DFLT_RMT_REDUCER_WEIGHT</h4> |
| <pre>public static final int DFLT_RMT_REDUCER_WEIGHT</pre> |
| <div class="block">Default remote reducer weight.</div> |
| <dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../constant-values.html#org.apache.ignite.hadoop.mapreduce.IgniteHadoopWeightedMapReducePlanner.DFLT_RMT_REDUCER_WEIGHT">Constant Field Values</a></dd></dl> |
| </li> |
| </ul> |
| <a name="DFLT_PREFER_LOCAL_REDUCER_THRESHOLD_WEIGHT"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>DFLT_PREFER_LOCAL_REDUCER_THRESHOLD_WEIGHT</h4> |
| <pre>public static final int DFLT_PREFER_LOCAL_REDUCER_THRESHOLD_WEIGHT</pre> |
| <div class="block">Default reducer migration threshold weight.</div> |
| <dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../constant-values.html#org.apache.ignite.hadoop.mapreduce.IgniteHadoopWeightedMapReducePlanner.DFLT_PREFER_LOCAL_REDUCER_THRESHOLD_WEIGHT">Constant Field Values</a></dd></dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor_detail"> |
| <!-- --> |
| </a> |
| <h3>Constructor Detail</h3> |
| <a name="IgniteHadoopWeightedMapReducePlanner()"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>IgniteHadoopWeightedMapReducePlanner</h4> |
| <pre>public IgniteHadoopWeightedMapReducePlanner()</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ============ METHOD DETAIL ========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method_detail"> |
| <!-- --> |
| </a> |
| <h3>Method Detail</h3> |
| <a name="preparePlan(org.apache.ignite.internal.processors.hadoop.HadoopJob, java.util.Collection, org.apache.ignite.internal.processors.hadoop.HadoopMapReducePlan)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>preparePlan</h4> |
| <pre>public org.apache.ignite.internal.processors.hadoop.HadoopMapReducePlan preparePlan(org.apache.ignite.internal.processors.hadoop.HadoopJob job, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="../../../../../org/apache/ignite/cluster/ClusterNode.html" title="interface in org.apache.ignite.cluster">ClusterNode</a>> nodes, |
| @Nullable |
| org.apache.ignite.internal.processors.hadoop.HadoopMapReducePlan oldPlan) |
| throws <a href="../../../../../org/apache/ignite/IgniteCheckedException.html" title="class in org.apache.ignite">IgniteCheckedException</a></pre> |
| <div class="block">Prepares map-reduce execution plan for the given job and topology.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>job</code> - Job.</dd><dd><code>nodes</code> - Topology.</dd><dd><code>oldPlan</code> - Old plan in case of partial failure.</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>Map reduce plan.</dd> |
| <dt><span class="strong">Throws:</span></dt> |
| <dd><code><a href="../../../../../org/apache/ignite/IgniteCheckedException.html" title="class in org.apache.ignite">IgniteCheckedException</a></code></dd></dl> |
| </li> |
| </ul> |
| <a name="getLocalMapperWeight()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getLocalMapperWeight</h4> |
| <pre>public int getLocalMapperWeight()</pre> |
| <div class="block">Get local mapper weight. This weight is added to a node when a mapper is assigned and it's input split data is |
| located on this node (at least partially). |
| <p> |
| Defaults to <a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#DFLT_LOC_MAPPER_WEIGHT"><code>DFLT_LOC_MAPPER_WEIGHT</code></a>.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>Remote mapper weight.</dd></dl> |
| </li> |
| </ul> |
| <a name="setLocalMapperWeight(int)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setLocalMapperWeight</h4> |
| <pre>public void setLocalMapperWeight(int locMapperWeight)</pre> |
| <div class="block">Set local mapper weight. See <a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#getLocalMapperWeight()"><code>getLocalMapperWeight()</code></a> for more information.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>locMapperWeight</code> - Local mapper weight.</dd></dl> |
| </li> |
| </ul> |
| <a name="getRemoteMapperWeight()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getRemoteMapperWeight</h4> |
| <pre>public int getRemoteMapperWeight()</pre> |
| <div class="block">Get remote mapper weight. This weight is added to a node when a mapper is assigned, but it's input |
| split data is not located on this node. |
| <p> |
| Defaults to <a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#DFLT_RMT_MAPPER_WEIGHT"><code>DFLT_RMT_MAPPER_WEIGHT</code></a>.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>Remote mapper weight.</dd></dl> |
| </li> |
| </ul> |
| <a name="setRemoteMapperWeight(int)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setRemoteMapperWeight</h4> |
| <pre>public void setRemoteMapperWeight(int rmtMapperWeight)</pre> |
| <div class="block">Set remote mapper weight. See <a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#getRemoteMapperWeight()"><code>getRemoteMapperWeight()</code></a> for more information.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>rmtMapperWeight</code> - Remote mapper weight.</dd></dl> |
| </li> |
| </ul> |
| <a name="getLocalReducerWeight()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getLocalReducerWeight</h4> |
| <pre>public int getLocalReducerWeight()</pre> |
| <div class="block">Get local reducer weight. This weight is added to a node when a reducer is assigned and the node have at least |
| one assigned mapper. |
| <p> |
| Defaults to <a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#DFLT_LOC_REDUCER_WEIGHT"><code>DFLT_LOC_REDUCER_WEIGHT</code></a>.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>Local reducer weight.</dd></dl> |
| </li> |
| </ul> |
| <a name="setLocalReducerWeight(int)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setLocalReducerWeight</h4> |
| <pre>public void setLocalReducerWeight(int locReducerWeight)</pre> |
| <div class="block">Set local reducer weight. See <a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#getLocalReducerWeight()"><code>getLocalReducerWeight()</code></a> for more information.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>locReducerWeight</code> - Local reducer weight.</dd></dl> |
| </li> |
| </ul> |
| <a name="getRemoteReducerWeight()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getRemoteReducerWeight</h4> |
| <pre>public int getRemoteReducerWeight()</pre> |
| <div class="block">Get remote reducer weight. This weight is added to a node when a reducer is assigned, but the node doesn't have |
| any assigned mappers. |
| <p> |
| Defaults to <a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#DFLT_RMT_REDUCER_WEIGHT"><code>DFLT_RMT_REDUCER_WEIGHT</code></a>.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>Remote reducer weight.</dd></dl> |
| </li> |
| </ul> |
| <a name="setRemoteReducerWeight(int)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setRemoteReducerWeight</h4> |
| <pre>public void setRemoteReducerWeight(int rmtReducerWeight)</pre> |
| <div class="block">Set remote reducer weight. See <a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#getRemoteReducerWeight()"><code>getRemoteReducerWeight()</code></a> for more information.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>rmtReducerWeight</code> - Remote reducer weight.</dd></dl> |
| </li> |
| </ul> |
| <a name="getPreferLocalReducerThresholdWeight()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getPreferLocalReducerThresholdWeight</h4> |
| <pre>public int getPreferLocalReducerThresholdWeight()</pre> |
| <div class="block">Get reducer migration threshold weight. When threshold is reached, a node with mappers is no longer considered |
| as preferred for further reducer assignments. |
| <p> |
| Defaults to <a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#DFLT_PREFER_LOCAL_REDUCER_THRESHOLD_WEIGHT"><code>DFLT_PREFER_LOCAL_REDUCER_THRESHOLD_WEIGHT</code></a>.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>Reducer migration threshold weight.</dd></dl> |
| </li> |
| </ul> |
| <a name="setPreferLocalReducerThresholdWeight(int)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setPreferLocalReducerThresholdWeight</h4> |
| <pre>public void setPreferLocalReducerThresholdWeight(int reducerMigrationThresholdWeight)</pre> |
| <div class="block">Set reducer migration threshold weight. See <a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html#getPreferLocalReducerThresholdWeight()"><code>getPreferLocalReducerThresholdWeight()</code></a> for more |
| information.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>reducerMigrationThresholdWeight</code> - Reducer migration threshold weight.</dd></dl> |
| </li> |
| </ul> |
| <a name="toString()"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>toString</h4> |
| <pre>public <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> toString()</pre> |
| <dl> |
| <dt><strong>Overrides:</strong></dt> |
| <dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a></code> in class <code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></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><a href="#skip-navbar_bottom" title="Skip navigation links"></a><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/IgniteHadoopWeightedMapReducePlanner.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 class="aboutLanguage"><em>Ignite - In-Memory Data Fabric</em></div> |
| </div> |
| <div class="subNav"> |
| <ul class="navList"> |
| <li><a href="../../../../../org/apache/ignite/hadoop/mapreduce/IgniteHadoopMapReducePlanner.html" title="class in org.apache.ignite.hadoop.mapreduce"><span class="strong">Prev Class</span></a></li> |
| <li>Next Class</li> |
| </ul> |
| <ul class="navList"> |
| <li><a href="../../../../../index.html?org/apache/ignite/hadoop/mapreduce/IgniteHadoopWeightedMapReducePlanner.html" target="_top">Frames</a></li> |
| <li><a href="IgniteHadoopWeightedMapReducePlanner.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><a href="#field_summary">Field</a> | </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><a href="#field_detail">Field</a> | </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><table width="100%" border="0" cellspacing=0 cellpadding=0 style="padding: 5px"> <tr> <td> <table style="padding-left: 0; margin: 0"> <tbody style="padding: 0; margin: 0"> <tr style="padding: 0; margin: 0"> <td> <a target=_blank href="https://ignite.apache.org"><nobr>2015 Copyright © Apache Software Foundation</nobr></a> </td> </tr> </tbody> </table> </td> <td width="100%" align="right" valign="center"> <a href="https://twitter.com/ApacheIgnite" class="twitter-follow-button" data-show-count="false" data-size="large">Follow @ApacheIgnite</a> <script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script> </td> </tr> <tr> <td colspan="2" valign="top" align="left"> <table style="padding-left: 0; margin: 0"> <tbody style="padding: 0; margin: 0"> <tr style="padding: 0; margin: 0"> <td> <b>Ignite Fabric</b> </td> <td>: ver. <strong>1.7.0</strong> </td> </tr> <tr style="padding: 0; margin: 0"> <td> <b>Release Date</b> </td> <td>: August 1 2016 </td> </tr> </tbody> </table> </td> </tr> </table></small></p> |
| </body> |
| </html> |
