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| <h2 title="Interface HadoopMapReducePlan" class="title">Interface HadoopMapReducePlan</h2> |
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| <pre>public interface <span class="typeNameLabel">HadoopMapReducePlan</span> |
| extends <a href="http://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a></pre> |
| <div class="block">Map-reduce job execution plan.</div> |
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| <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="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract 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><a href="http://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="http://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/ignite/hadoop/HadoopMapReducePlan.html#mapperNodeIds--">mapperNodeIds</a></span>()</code> |
| <div class="block">Gets collection of all node IDs involved in map part of job execution.</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/ignite/hadoop/HadoopMapReducePlan.html#mappers--">mappers</a></span>()</code> |
| <div class="block">Gets overall number of mappers for the job.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="../../../../org/apache/ignite/hadoop/HadoopInputSplit.html" title="class in org.apache.ignite.hadoop">HadoopInputSplit</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/ignite/hadoop/HadoopMapReducePlan.html#mappers-java.util.UUID-">mappers</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a> nodeId)</code> |
| <div class="block">Gets collection of file blocks for which mappers should be executed.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/ignite/hadoop/HadoopMapReducePlan.html#nodeForReducer-int-">nodeForReducer</a></span>(int reducer)</code> |
| <div class="block">Gets node ID for reducer.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="http://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/ignite/hadoop/HadoopMapReducePlan.html#reducerNodeIds--">reducerNodeIds</a></span>()</code> |
| <div class="block">Gets collection of all node IDs involved in reduce part of job execution.</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/ignite/hadoop/HadoopMapReducePlan.html#reducers--">reducers</a></span>()</code> |
| <div class="block">Gets overall number of reducers for the job.</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/ignite/hadoop/HadoopMapReducePlan.html#reducers-java.util.UUID-">reducers</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a> nodeId)</code> |
| <div class="block">Gets reducer IDs that should be started on given node.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
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| <h3>Method Detail</h3> |
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| <h4>mappers</h4> |
| <pre>@Nullable |
| <a href="http://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="../../../../org/apache/ignite/hadoop/HadoopInputSplit.html" title="class in org.apache.ignite.hadoop">HadoopInputSplit</a>> mappers(<a href="http://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a> nodeId)</pre> |
| <div class="block">Gets collection of file blocks for which mappers should be executed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>nodeId</code> - Node ID to check.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Collection of file blocks or <code>null</code> if no mappers should be executed on given node.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="reducers-java.util.UUID-"> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>reducers</h4> |
| <pre>@Nullable |
| int[] reducers(<a href="http://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a> nodeId)</pre> |
| <div class="block">Gets reducer IDs that should be started on given node.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>nodeId</code> - Node ID to check.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Array of reducer IDs.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="mapperNodeIds--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>mapperNodeIds</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="http://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>> mapperNodeIds()</pre> |
| <div class="block">Gets collection of all node IDs involved in map part of job execution.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Collection of node IDs.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="reducerNodeIds--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>reducerNodeIds</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="http://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>> reducerNodeIds()</pre> |
| <div class="block">Gets collection of all node IDs involved in reduce part of job execution.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Collection of node IDs.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="mappers--"> |
| <!-- --> |
| </a> |
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| <li class="blockList"> |
| <h4>mappers</h4> |
| <pre>int mappers()</pre> |
| <div class="block">Gets overall number of mappers for the job.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Number of mappers.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="reducers--"> |
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| </a> |
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| <li class="blockList"> |
| <h4>reducers</h4> |
| <pre>int reducers()</pre> |
| <div class="block">Gets overall number of reducers for the job.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Number of reducers.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="nodeForReducer-int-"> |
| <!-- --> |
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| <h4>nodeForReducer</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a> nodeForReducer(int reducer)</pre> |
| <div class="block">Gets node ID for reducer.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>reducer</code> - Reducer.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Node ID.</dd> |
| </dl> |
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