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| <div class="subTitle">org.apache.drill.exec.store.schedule</div> |
| <h2 title="Class AssignmentCreator" class="title">Class AssignmentCreator<T extends <a href="../../../../../../org/apache/drill/exec/store/schedule/CompleteWork.html" title="interface in org.apache.drill.exec.store.schedule">CompleteWork</a>></h2> |
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| <pre>public class <span class="typeNameLabel">AssignmentCreator<T extends <a href="../../../../../../org/apache/drill/exec/store/schedule/CompleteWork.html" title="interface in org.apache.drill.exec.store.schedule">CompleteWork</a>></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></pre> |
| <div class="block">Responsible for assigning a set of work units to the available slices.</div> |
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| <td class="colFirst"><code>static <T extends <a href="../../../../../../org/apache/drill/exec/store/schedule/CompleteWork.html" title="interface in org.apache.drill.exec.store.schedule">CompleteWork</a>><br>org.apache.drill.shaded.guava.com.google.common.collect.ListMultimap<<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,T></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/store/schedule/AssignmentCreator.html#getMappings-java.util.List-java.util.List-">getMappings</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/drill/exec/proto/CoordinationProtos.DrillbitEndpoint.html" title="class in org.apache.drill.exec.proto">CoordinationProtos.DrillbitEndpoint</a>> incomingEndpoints, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><T> units)</code> |
| <div class="block">Assign each unit of work to a minor fragment, given that a list of DrillbitEndpoints, whose index in the list correspond |
| to the minor fragment id for each fragment.</div> |
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| <h4>getMappings</h4> |
| <pre>public static <T extends <a href="../../../../../../org/apache/drill/exec/store/schedule/CompleteWork.html" title="interface in org.apache.drill.exec.store.schedule">CompleteWork</a>> org.apache.drill.shaded.guava.com.google.common.collect.ListMultimap<<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,T> getMappings(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/drill/exec/proto/CoordinationProtos.DrillbitEndpoint.html" title="class in org.apache.drill.exec.proto">CoordinationProtos.DrillbitEndpoint</a>> incomingEndpoints, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><T> units)</pre> |
| <div class="block">Assign each unit of work to a minor fragment, given that a list of DrillbitEndpoints, whose index in the list correspond |
| to the minor fragment id for each fragment. A given DrillbitEndpoint can appear multiple times in this list. This method |
| will try to assign work based on the affinity of each work unit, but will also evenly distribute the work units among |
| all of the minor fragments</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>incomingEndpoints</code> - The list of incomingEndpoints, indexed by minor fragment id</dd> |
| <dd><code>units</code> - the list of work units to be assigned</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A multimap that maps each minor fragment id to a list of work units</dd> |
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