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<h1 title="Package" class="title">Package&nbsp;org.apache.hadoop.yarn.server.resourcemanager.scheduler</h1>
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<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Interface Summary table, listing interfaces, and an explanation">
<caption><span>Interface Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Interface</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/AbstractUsersManager.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler">AbstractUsersManager</a></td>
<td class="colLast">
<div class="block"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/AbstractUsersManager.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler"><code>AbstractUsersManager</code></a> tracks users in the system.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ConfigurationMutationACLPolicy.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler">ConfigurationMutationACLPolicy</a></td>
<td class="colLast">
<div class="block">Interface for determining whether configuration mutations are allowed.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/MutableConfigurationProvider.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler">MutableConfigurationProvider</a></td>
<td class="colLast">
<div class="block">Interface for allowing changing scheduler configurations.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/MutableConfScheduler.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler">MutableConfScheduler</a></td>
<td class="colLast">
<div class="block">Interface for a scheduler that supports changing configuration at runtime.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/NodeFilter.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler">NodeFilter</a></td>
<td class="colLast">
<div class="block">Convenience way to filter nodes based on a criteria.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/PreemptableResourceScheduler.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler">PreemptableResourceScheduler</a></td>
<td class="colLast">
<div class="block">Interface for a scheduler that supports preemption/killing</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/Queue.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler">Queue</a></td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ResourceScheduler.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler">ResourceScheduler</a></td>
<td class="colLast">
<div class="block">This interface is the one implemented by the schedulers.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerQueue.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerQueue</a>&lt;T extends <a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerQueue.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerQueue</a>&gt;</td>
<td class="colLast">
<div class="block">Represents a queue in Scheduler.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerQueueManager.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerQueueManager</a>&lt;T extends <a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerQueue.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerQueue</a>,E extends <a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/reservation/ReservationSchedulerConfiguration.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.reservation">ReservationSchedulerConfiguration</a>&gt;</td>
<td class="colLast">
<div class="block">Context of the Queues in Scheduler.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/YarnScheduler.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler">YarnScheduler</a></td>
<td class="colLast">
<div class="block">This interface is used by the components to talk to the
scheduler for allocating of resources, cleaning up resources.</div>
</td>
</tr>
</tbody>
</table>
</li>
<li class="blockList">
<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Class Summary table, listing classes, and an explanation">
<caption><span>Class Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/AbstractResourceUsage.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">AbstractResourceUsage</a></td>
<td class="colLast">
<div class="block">This class can be used to track resource usage in queue/user/app.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/AbstractResourceUsage.UsageByLabel.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">AbstractResourceUsage.UsageByLabel</a></td>
<td class="colLast">
<div class="block">UsageByLabel stores resource array for all resource usage types.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/AbstractYarnScheduler.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">AbstractYarnScheduler</a>&lt;T extends <a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerApplicationAttempt.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerApplicationAttempt</a>,N extends <a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerNode.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerNode</a>&gt;</td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ActiveUsersManager.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">ActiveUsersManager</a></td>
<td class="colLast">
<div class="block"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ActiveUsersManager.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler"><code>ActiveUsersManager</code></a> tracks active users in the system.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/Allocation.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">Allocation</a></td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ApplicationPlacementAllocatorFactory.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">ApplicationPlacementAllocatorFactory</a></td>
<td class="colLast">
<div class="block">Factory class to build various application placement policies.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/AppSchedulingInfo.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">AppSchedulingInfo</a></td>
<td class="colLast">
<div class="block">This class keeps track of all the consumption of an application.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ClusterNodeTracker.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">ClusterNodeTracker</a>&lt;N extends <a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerNode.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerNode</a>&gt;</td>
<td class="colLast">
<div class="block">Helper library that:
- tracks the state of all cluster <a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerNode.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler"><code>SchedulerNode</code></a>s
- provides convenience methods to filter and sort nodes</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ConfigurationMutationACLPolicyFactory.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">ConfigurationMutationACLPolicyFactory</a></td>
<td class="colLast">
<div class="block">Factory class for creating instances of
<a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ConfigurationMutationACLPolicy.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler"><code>ConfigurationMutationACLPolicy</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ContainerUpdateContext.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">ContainerUpdateContext</a></td>
<td class="colLast">
<div class="block">Class encapsulates all outstanding container increase and decrease
requests for an application.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ContainerUpdates.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">ContainerUpdates</a></td>
<td class="colLast">
<div class="block">Holder class that maintains list of container update requests</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/CSQueueMetricsForCustomResources.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">CSQueueMetricsForCustomResources</a></td>
<td class="colLast">
<div class="block">This class is a main entry-point for any kind of CSQueueMetrics for
custom resources.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/DefaultConfigurationMutationACLPolicy.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">DefaultConfigurationMutationACLPolicy</a></td>
<td class="colLast">
<div class="block">Default configuration mutation ACL policy.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/FSQueueMetricsForCustomResources.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">FSQueueMetricsForCustomResources</a></td>
<td class="colLast">
<div class="block">This class is a main entry-point for any kind of metrics for
custom resources.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/NodeReport.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">NodeReport</a></td>
<td class="colLast">
<div class="block">Node usage report.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/NodeResponse.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">NodeResponse</a></td>
<td class="colLast">
<div class="block">The class that encapsulates response from clusterinfo for
updates from the node managers.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/PartitionQueueMetrics.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">PartitionQueueMetrics</a></td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/QueueMetrics.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">QueueMetrics</a></td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/QueueMetricsForCustomResources.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">QueueMetricsForCustomResources</a></td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/QueueResourceQuotas.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">QueueResourceQuotas</a></td>
<td class="colLast">
<div class="block">QueueResourceQuotas by Labels for following fields by label
- EFFECTIVE_MIN_CAPACITY
- EFFECTIVE_MAX_CAPACITY
This class can be used to track resource usage in queue/user/app.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/QueueStateManager.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">QueueStateManager</a>&lt;T extends <a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerQueue.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerQueue</a>,E extends <a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/reservation/ReservationSchedulerConfiguration.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.reservation">ReservationSchedulerConfiguration</a>&gt;</td>
<td class="colLast">
<div class="block">QueueStateManager which can be used by Scheduler to manage the queue state.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ResourceLimits.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">ResourceLimits</a></td>
<td class="colLast">
<div class="block">Resource limits for queues/applications, this means max overall (please note
that, it's not "extra") resource you can get.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ResourceUsage.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">ResourceUsage</a></td>
<td class="colLast">
<div class="block">Resource Usage by Labels for following fields by label - AM resource (to
enforce max-am-resource-by-label after YARN-2637) - Used resource (includes
AM resource usage) - Reserved resource - Pending resource - Headroom
This class can be used to track resource usage in queue/user/app.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedContainerChangeRequest.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedContainerChangeRequest</a></td>
<td class="colLast">
<div class="block">This is UpdateContainerRequest in scheduler side, it contains some
pointers to runtime objects like RMContainer, SchedulerNode, etc.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerApplication.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerApplication</a>&lt;T extends <a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerApplicationAttempt.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerApplicationAttempt</a>&gt;</td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerApplicationAttempt.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerApplicationAttempt</a></td>
<td class="colLast">
<div class="block">Represents an application attempt from the viewpoint of the scheduler.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerAppReport.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerAppReport</a></td>
<td class="colLast">
<div class="block">Represents an application attempt, and the resources that the attempt is
using.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerAppUtils.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerAppUtils</a></td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerHealth.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerHealth</a></td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerHealth.DetailedInformation.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerHealth.DetailedInformation</a></td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerNode.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerNode</a></td>
<td class="colLast">
<div class="block">Represents a YARN Cluster Node from the viewpoint of the scheduler.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerNodeReport.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerNodeReport</a></td>
<td class="colLast">
<div class="block">Node usage report.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerUtils.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerUtils</a></td>
<td class="colLast">
<div class="block">Utilities shared by schedulers.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerUtils.MaxResourceValidationResult.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerUtils.MaxResourceValidationResult</a></td>
<td class="colLast">
<div class="block">This class contains invalid resource information along with its
resource request.</div>
</td>
</tr>
</tbody>
</table>
</li>
<li class="blockList">
<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Enum Summary table, listing enums, and an explanation">
<caption><span>Enum Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Enum</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/AbstractResourceUsage.ResourceType.html" title="enum in org.apache.hadoop.yarn.server.resourcemanager.scheduler">AbstractResourceUsage.ResourceType</a></td>
<td class="colLast">
<div class="block">Use enum here to make implementation more cleaner and readable.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/NodeType.html" title="enum in org.apache.hadoop.yarn.server.resourcemanager.scheduler">NodeType</a></td>
<td class="colLast">
<div class="block">Resource classification.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerApplicationAttempt.AMState.html" title="enum in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerApplicationAttempt.AMState</a></td>
<td class="colLast">
<div class="block">Different state for Application Master, user can see this state from web UI</div>
</td>
</tr>
</tbody>
</table>
</li>
<li class="blockList">
<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Exception Summary table, listing exceptions, and an explanation">
<caption><span>Exception Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Exception</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/QueueInvalidException.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">QueueInvalidException</a></td>
<td class="colLast">&nbsp;</td>
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