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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3916) DrainDispatcher#await should wait till event has been completely handled
Date Sat, 11 Jul 2015 23:31:04 GMT

    [ https://issues.apache.org/jira/browse/YARN-3916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14623623#comment-14623623
] 

Hadoop QA commented on YARN-3916:
---------------------------------

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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  16m 12s | 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 1 new
or modified test files. |
| {color:green}+1{color} | javac |   7m 41s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |   9m 41s | 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 56s | There were no new checkstyle issues. |
| {color:green}+1{color} | whitespace |   0m  0s | The patch has no lines that end in whitespace.
|
| {color:green}+1{color} | install |   1m 21s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 33s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   1m 34s | The patch does not introduce any new Findbugs
(version 3.0.0) warnings. |
| {color:green}+1{color} | yarn tests |   1m 56s | Tests passed in hadoop-yarn-common. |
| | |  40m 19s | |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12744910/YARN-3916.01.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 1df39c1 |
| hadoop-yarn-common test log | https://builds.apache.org/job/PreCommit-YARN-Build/8511/artifact/patchprocess/testrun_hadoop-yarn-common.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/8511/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/8511/console |


This message was automatically generated.

> DrainDispatcher#await should wait till event has been completely handled
> ------------------------------------------------------------------------
>
>                 Key: YARN-3916
>                 URL: https://issues.apache.org/jira/browse/YARN-3916
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.7.0
>            Reporter: Varun Saxena
>            Assignee: Varun Saxena
>            Priority: Critical
>         Attachments: YARN-3916.01.patch
>
>
> DrainDispatcher#await should wait till event has been completely handled.
> Currently it only checks for whether event queue has become empty.
> And in many tests we directly check for a state to be changed after calling await.
> Sometimes, the states do not change by the time we check them as event has not been completely
handled.
> This is causing test failures such as YARN-3909 and YARN-3910 and may cause other test
failures as well.



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