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https://issues.apache.org/jira/browse/YARN-7774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16347114#comment-16347114
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Hudson commented on YARN-7774:
------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #13589 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/13589/])
YARN-7774. Miscellaneous fixes to the PlacementProcessor. (asuresh) (arun
suresh: rev 28fe7f331837b36e78fa34ed990993677dddeaee)
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/placement/SingleConstraintAppPlacementAllocator.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/placement/TestSingleConstraintAppPlacementAllocator.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacityScheduler.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/processor/BatchedRequests.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/algorithm/DefaultPlacementAlgorithm.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/PlacementConstraintsUtil.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/TestPlacementProcessor.java
* (add)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/algorithm/CircularIterator.java
* (add)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/algorithm/TestCircularIterator.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/MockAM.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerNode.java
> Miscellaneous fixes to the PlacementProcessor
> ---------------------------------------------
>
> Key: YARN-7774
> URL: https://issues.apache.org/jira/browse/YARN-7774
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Arun Suresh
> Assignee: Arun Suresh
> Priority: Blocker
> Fix For: YARN-6592
>
> Attachments: YARN-7774-YARN-6592.001.patch,
> YARN-7774-YARN-6592.002.patch, YARN-7774-YARN-6592.003.patch,
> YARN-7774-YARN-6592.004.patch, YARN-7774-YARN-6592.005.patch
>
>
> JIRA to track the following minor changes:
> * Scheduler must normalize requests that are made using the
> {{attemptAllocationOnNode}} method.
> * Currently, the placement algorithm resets the node iterator for each
> request. The Placement Algorithm should either shuffle the node iterator OR
> use a circular iterator - to ensure a) more nodes are looked at and b) bias
> against placing too many containers on the same node
> * Add a placement retry loop for rejected requests - since there are cases
> especially, when Constraints will be satisfied after a subsequent request has
> been placed.
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