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<div class="subTitle">org.apache.drill.exec.planner.fragment</div>
<h2 title="Class QueueQueryParallelizer" class="title">Class QueueQueryParallelizer</h2>
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<li><a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html" title="class in org.apache.drill.exec.planner.fragment">org.apache.drill.exec.planner.fragment.SimpleParallelizer</a></li>
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<li>org.apache.drill.exec.planner.fragment.QueueQueryParallelizer</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../../org/apache/drill/exec/planner/fragment/ParallelizationParameters.html" title="interface in org.apache.drill.exec.planner.fragment">ParallelizationParameters</a>, <a href="../../../../../../org/apache/drill/exec/planner/fragment/QueryParallelizer.html" title="interface in org.apache.drill.exec.planner.fragment">QueryParallelizer</a></dd>
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<pre>public class <span class="typeNameLabel">QueueQueryParallelizer</span>
extends <a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html" title="class in org.apache.drill.exec.planner.fragment">SimpleParallelizer</a></pre>
<div class="block">Paralellizer specialized for managing resources for a query based on Queues. This parallelizer
does not deal with increase/decrease of the parallelization of a query plan based on the current
cluster state. However, the memory assignment for each operator, minor fragment and major
fragment is based on the cluster state and provided queue configuration.</div>
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<code><a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.CountRequiredFragments.html" title="class in org.apache.drill.exec.planner.fragment">SimpleParallelizer.CountRequiredFragments</a></code></li>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/fragment/QueueQueryParallelizer.html#QueueQueryParallelizer-boolean-org.apache.drill.exec.ops.QueryContext-">QueueQueryParallelizer</a></span>(boolean&nbsp;memoryPlanning,
<a href="../../../../../../org/apache/drill/exec/ops/QueryContext.html" title="class in org.apache.drill.exec.ops">QueryContext</a>&nbsp;queryContext)</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/fragment/QueueQueryParallelizer.html#adjustMemory-org.apache.drill.exec.planner.fragment.PlanningSet-java.util.Set-java.util.Collection-">adjustMemory</a></span>(<a href="../../../../../../org/apache/drill/exec/planner/fragment/PlanningSet.html" title="class in org.apache.drill.exec.planner.fragment">PlanningSet</a>&nbsp;planningSet,
<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/drill/exec/planner/fragment/Wrapper.html" title="class in org.apache.drill.exec.planner.fragment">Wrapper</a>&gt;&nbsp;roots,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../../../org/apache/drill/exec/proto/CoordinationProtos.DrillbitEndpoint.html" title="class in org.apache.drill.exec.proto">CoordinationProtos.DrillbitEndpoint</a>&gt;&nbsp;activeEndpoints)</code>
<div class="block">Function called by the SimpleParallelizer to adjust the memory post parallelization.</div>
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<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/BiFunction.html?is-external=true" title="class or interface in java.util.function">BiFunction</a>&lt;<a href="../../../../../../org/apache/drill/exec/proto/CoordinationProtos.DrillbitEndpoint.html" title="class in org.apache.drill.exec.proto">CoordinationProtos.DrillbitEndpoint</a>,<a href="../../../../../../org/apache/drill/exec/physical/base/PhysicalOperator.html" title="interface in org.apache.drill.exec.physical.base">PhysicalOperator</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/fragment/QueueQueryParallelizer.html#getMemory--">getMemory</a></span>()</code>&nbsp;</td>
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<h3>Methods inherited from class&nbsp;org.apache.drill.exec.planner.fragment.<a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html" title="class in org.apache.drill.exec.planner.fragment">SimpleParallelizer</a></h3>
<code><a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html#collectStatsAndParallelizeFragments-org.apache.drill.exec.planner.fragment.PlanningSet-java.util.Set-java.util.Collection-">collectStatsAndParallelizeFragments</a>, <a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html#generateWorkUnit-org.apache.drill.exec.server.options.OptionList-org.apache.drill.exec.proto.CoordinationProtos.DrillbitEndpoint-org.apache.drill.exec.proto.UserBitShared.QueryId-java.util.Collection-org.apache.drill.exec.planner.fragment.Fragment-org.apache.drill.exec.rpc.user.UserSession-org.apache.drill.exec.proto.BitControl.QueryContextInformation-">generateWorkUnit</a>, <a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html#generateWorkUnit-org.apache.drill.exec.server.options.OptionList-org.apache.drill.exec.proto.CoordinationProtos.DrillbitEndpoint-org.apache.drill.exec.proto.UserBitShared.QueryId-org.apache.drill.exec.planner.fragment.Fragment-org.apache.drill.exec.planner.fragment.PlanningSet-org.apache.drill.exec.rpc.user.UserSession-org.apache.drill.exec.proto.BitControl.QueryContextInformation-">generateWorkUnit</a>, <a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html#getAffinityFactor--">getAffinityFactor</a>, <a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html#getMaxGlobalWidth--">getMaxGlobalWidth</a>, <a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html#getMaxWidthPerNode--">getMaxWidthPerNode</a>, <a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html#getRootFragments-org.apache.drill.exec.planner.fragment.PlanningSet-">getRootFragments</a>, <a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html#getSliceTarget--">getSliceTarget</a>, <a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html#getSplitFragments-org.apache.drill.exec.server.options.OptionList-org.apache.drill.exec.proto.CoordinationProtos.DrillbitEndpoint-org.apache.drill.exec.proto.UserBitShared.QueryId-java.util.Collection-org.apache.drill.exec.planner.PhysicalPlanReader-org.apache.drill.exec.planner.fragment.Fragment-org.apache.drill.exec.rpc.user.UserSession-org.apache.drill.exec.proto.BitControl.QueryContextInformation-">getSplitFragments</a>, <a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html#initFragmentWrappers-org.apache.drill.exec.planner.fragment.Fragment-org.apache.drill.exec.planner.fragment.PlanningSet-">initFragmentWrappers</a>, <a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html#prepareFragmentTree-org.apache.drill.exec.planner.fragment.Fragment-">prepareFragmentTree</a>, <a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html#traverse-org.apache.drill.exec.planner.fragment.Wrapper-java.util.function.Consumer-">traverse</a></code></li>
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<h4>QueueQueryParallelizer</h4>
<pre>public&nbsp;QueueQueryParallelizer(boolean&nbsp;memoryPlanning,
<a href="../../../../../../org/apache/drill/exec/ops/QueryContext.html" title="class in org.apache.drill.exec.ops">QueryContext</a>&nbsp;queryContext)</pre>
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<h4>getMemory</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/BiFunction.html?is-external=true" title="class or interface in java.util.function">BiFunction</a>&lt;<a href="../../../../../../org/apache/drill/exec/proto/CoordinationProtos.DrillbitEndpoint.html" title="class in org.apache.drill.exec.proto">CoordinationProtos.DrillbitEndpoint</a>,<a href="../../../../../../org/apache/drill/exec/physical/base/PhysicalOperator.html" title="interface in org.apache.drill.exec.physical.base">PhysicalOperator</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>&gt;&nbsp;getMemory()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html#getMemory--">getMemory</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html" title="class in org.apache.drill.exec.planner.fragment">SimpleParallelizer</a></code></dd>
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<h4>adjustMemory</h4>
<pre>public&nbsp;void&nbsp;adjustMemory(<a href="../../../../../../org/apache/drill/exec/planner/fragment/PlanningSet.html" title="class in org.apache.drill.exec.planner.fragment">PlanningSet</a>&nbsp;planningSet,
<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/drill/exec/planner/fragment/Wrapper.html" title="class in org.apache.drill.exec.planner.fragment">Wrapper</a>&gt;&nbsp;roots,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../../../org/apache/drill/exec/proto/CoordinationProtos.DrillbitEndpoint.html" title="class in org.apache.drill.exec.proto">CoordinationProtos.DrillbitEndpoint</a>&gt;&nbsp;activeEndpoints)
throws <a href="../../../../../../org/apache/drill/exec/physical/PhysicalOperatorSetupException.html" title="class in org.apache.drill.exec.physical">PhysicalOperatorSetupException</a></pre>
<div class="block">Function called by the SimpleParallelizer to adjust the memory post parallelization.
The overall logic is to traverse the fragment tree and call the MemoryCalculator on
each major fragment. Once the memory is computed, resource requirement are accumulated
per drillbit.
The total resource requirements are used to select a queue. If the selected queue's
resource limit is more/less than the query's requirement than the memory will be re-adjusted.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html#adjustMemory-org.apache.drill.exec.planner.fragment.PlanningSet-java.util.Set-java.util.Collection-">adjustMemory</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/drill/exec/planner/fragment/SimpleParallelizer.html" title="class in org.apache.drill.exec.planner.fragment">SimpleParallelizer</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>planningSet</code> - context of the fragments.</dd>
<dd><code>roots</code> - root fragments.</dd>
<dd><code>activeEndpoints</code> - currently active endpoints.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/drill/exec/physical/PhysicalOperatorSetupException.html" title="class in org.apache.drill.exec.physical">PhysicalOperatorSetupException</a></code></dd>
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