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https://issues.apache.org/jira/browse/YARN-1183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13766634#comment-13766634
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Hadoop QA commented on YARN-1183:
---------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12603041/YARN-1183--n4.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 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}. The javadoc tool did not generate any
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 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-YARN-Build/1917//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/1917//console
This message is automatically generated.
> MiniYARNCluster shutdown takes several minutes intermittently
> -------------------------------------------------------------
>
> Key: YARN-1183
> URL: https://issues.apache.org/jira/browse/YARN-1183
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Andrey Klochkov
> Attachments: YARN-1183--n2.patch, YARN-1183--n3.patch,
> YARN-1183--n4.patch, YARN-1183.patch
>
>
> As described in MAPREDUCE-5501 sometimes M/R tests leave MRAppMaster java
> processes living for several minutes after successful completion of the
> corresponding test. There is a concurrency issue in MiniYARNCluster shutdown
> logic which leads to this. Sometimes RM stops before an app master sends it's
> last report, and then the app master keeps retrying for >6 minutes. In some
> cases it leads to failures in subsequent tests, and it affects performance of
> tests as app masters eat resources.
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