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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2498) Respect labels in preemption policy of capacity scheduler for inter-queue preemption
Date Tue, 21 Apr 2015 02:17:59 GMT

    [ https://issues.apache.org/jira/browse/YARN-2498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14504164#comment-14504164
] 

Hadoop QA commented on YARN-2498:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12726728/YARN-2498.2.patch
  against trunk revision 44872b7.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 5 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager:

                  org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.TestAllocationFileLoaderService
                  org.apache.hadoop.yarn.server.resourcemanager.webapp.TestRMWebServicesNodeLabels

Test results: https://builds.apache.org/job/PreCommit-YARN-Build/7412//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/7412//console

This message is automatically generated.

> Respect labels in preemption policy of capacity scheduler for inter-queue preemption
> ------------------------------------------------------------------------------------
>
>                 Key: YARN-2498
>                 URL: https://issues.apache.org/jira/browse/YARN-2498
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>         Attachments: STALED-YARN-2498.zip, YARN-2498.1.patch, YARN-2498.2.patch
>
>
> There're 3 stages in ProportionalCapacityPreemptionPolicy,
> # Recursively calculate {{ideal_assigned}} for queue. This is depends on available resource,
resource used/pending in each queue and guaranteed capacity of each queue.
> # Mark to-be preempted containers: For each over-satisfied queue, it will mark some containers
will be preempted.
> # Notify scheduler about to-be preempted container.
> We need respect labels in the cluster for both #1 and #2:
> For #1, when calculating ideal_assigned for each queue, we need get by-partition-ideal-assigned
according to queue's guaranteed/maximum/used/pending resource on specific partition.
> For #2, when we make decision about whether we need preempt a container, we need make
sure, resource this container is *possibly* usable by a queue which is under-satisfied and
has pending resource.
> In addition, we need to handle ignore_partition_exclusivity case, when we need to preempt
containers from a queue's partition, we will first preempt ignore_partition_exclusivity allocated
containers.



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