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https://issues.apache.org/jira/browse/YARN-4105?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14728386#comment-14728386
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Hadoop QA commented on YARN-4105:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | pre-patch | 17m 7s | Pre-patch trunk has 1 extant
Findbugs (version 3.0.0) warnings. |
| {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 1 new or modified test files. |
| {color:green}+1{color} | javac | 7m 50s | There were no new javac warning
messages. |
| {color:green}+1{color} | javadoc | 10m 3s | There were no new javadoc
warning messages. |
| {color:green}+1{color} | release audit | 0m 27s | The applied patch does
not increase the total number of release audit warnings. |
| {color:green}+1{color} | checkstyle | 0m 50s | There were no new checkstyle
issues. |
| {color:green}+1{color} | whitespace | 0m 1s | The patch has no lines that
end in whitespace. |
| {color:green}+1{color} | install | 1m 32s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse | 0m 34s | The patch built with
eclipse:eclipse. |
| {color:green}+1{color} | findbugs | 1m 32s | The patch does not introduce
any new Findbugs (version 3.0.0) warnings. |
| {color:red}-1{color} | yarn tests | 52m 20s | Tests failed in
hadoop-yarn-server-resourcemanager. |
| | | 92m 19s | |
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|| Reason || Tests ||
| Failed unit tests |
hadoop.yarn.server.resourcemanager.scheduler.fifo.TestFifoScheduler |
| Timed out tests |
org.apache.hadoop.yarn.server.resourcemanager.ahs.TestRMApplicationHistoryWriter
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|| Subsystem || Report/Notes ||
| Patch URL |
http://issues.apache.org/jira/secure/attachment/12753876/YARN-4105.4.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / d31a41c |
| Pre-patch Findbugs warnings |
https://builds.apache.org/job/PreCommit-YARN-Build/8989/artifact/patchprocess/trunkFindbugsWarningshadoop-yarn-server-resourcemanager.html
|
| hadoop-yarn-server-resourcemanager test log |
https://builds.apache.org/job/PreCommit-YARN-Build/8989/artifact/patchprocess/testrun_hadoop-yarn-server-resourcemanager.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-YARN-Build/8989/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf906.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/8989/console |
This message was automatically generated.
> Capacity Scheduler headroom for DRF is wrong
> --------------------------------------------
>
> Key: YARN-4105
> URL: https://issues.apache.org/jira/browse/YARN-4105
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacityscheduler
> Affects Versions: 2.6.0
> Reporter: Chang Li
> Assignee: Chang Li
> Attachments: YARN-4105.2.patch, YARN-4105.3.patch, YARN-4105.4.patch,
> YARN-4105.patch
>
>
> relate to the problem discussed in YARN-1857. But the min method is flawed
> when we are using DRC. Have run into a real scenario in production where
> queueCapacity: <memory:1056256, vCores:3750>, qconsumed: <memory:1054720,
> vCores:361>, consumed: <memory:125952, vCores:170> limit: <memory:214016,
> vCores:755>. headRoom calculation returns 88064 where there is only 1536
> left in the queue because DRC effectively compare by vcores. It then caused
> deadlock because RMcontainer allocator thought there is still space for
> mapper and won't preempt a reducer in a full queue to schedule a mapper.
> Propose fix with componentwiseMin.
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