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https://issues.apache.org/jira/browse/YARN-3849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14614571#comment-14614571
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Hadoop QA commented on YARN-3849:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch | 15m 55s | Pre-patch trunk compilation is
healthy. |
| {color:green}+1{color} | @author | 0m 0s | The patch does not contain any
@author tags. |
| {color:green}+1{color} | tests included | 0m 0s | The patch appears to
include 2 new or modified test files. |
| {color:green}+1{color} | javac | 7m 38s | There were no new javac warning
messages. |
| {color:green}+1{color} | javadoc | 9m 37s | There were no new javadoc
warning messages. |
| {color:green}+1{color} | release audit | 0m 22s | The applied patch does
not increase the total number of release audit warnings. |
| {color:green}+1{color} | checkstyle | 0m 46s | There were no new checkstyle
issues. |
| {color:red}-1{color} | whitespace | 0m 3s | The patch has 1 line(s) that
end in whitespace. Use git apply --whitespace=fix. |
| {color:green}+1{color} | install | 1m 33s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse | 0m 32s | The patch built with
eclipse:eclipse. |
| {color:green}+1{color} | findbugs | 1m 29s | The patch does not introduce
any new Findbugs (version 3.0.0) warnings. |
| {color:green}+1{color} | yarn tests | 51m 9s | Tests passed in
hadoop-yarn-server-resourcemanager. |
| | | 89m 7s | |
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|| Subsystem || Report/Notes ||
| Patch URL |
http://issues.apache.org/jira/secure/attachment/12743659/0004-YARN-3849.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 688617d |
| whitespace |
https://builds.apache.org/job/PreCommit-YARN-Build/8431/artifact/patchprocess/whitespace.txt
|
| hadoop-yarn-server-resourcemanager test log |
https://builds.apache.org/job/PreCommit-YARN-Build/8431/artifact/patchprocess/testrun_hadoop-yarn-server-resourcemanager.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-YARN-Build/8431/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf905.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP
PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Console output |
https://builds.apache.org/job/PreCommit-YARN-Build/8431/console |
This message was automatically generated.
> Too much of preemption activity causing continuos killing of containers
> across queues
> -------------------------------------------------------------------------------------
>
> Key: YARN-3849
> URL: https://issues.apache.org/jira/browse/YARN-3849
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacityscheduler
> Affects Versions: 2.7.0
> Reporter: Sunil G
> Assignee: Sunil G
> Priority: Critical
> Attachments: 0001-YARN-3849.patch, 0002-YARN-3849.patch,
> 0003-YARN-3849.patch, 0004-YARN-3849.patch
>
>
> Two queues are used. Each queue has given a capacity of 0.5. Dominant
> Resource policy is used.
> 1. An app is submitted in QueueA which is consuming full cluster capacity
> 2. After submitting an app in QueueB, there are some demand and invoking
> preemption in QueueA
> 3. Instead of killing the excess of 0.5 guaranteed capacity, we observed that
> all containers other than AM is getting killed in QueueA
> 4. Now the app in QueueB is trying to take over cluster with the current free
> space. But there are some updated demand from the app in QueueA which lost
> its containers earlier, and preemption is kicked in QueueB now.
> Scenario in step 3 and 4 continuously happening in loop. Thus none of the
> apps are completing.
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