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https://issues.apache.org/jira/browse/YARN-1395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13819344#comment-13819344
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Hadoop QA commented on YARN-1395:
---------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12613212/YARN-1395.2.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-applications/hadoop-yarn-applications-distributedshell.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-YARN-Build/2414//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/2414//console
This message is automatically generated.
> Distributed shell application master launched with debug flag can hang
> waiting for external ls process.
> -------------------------------------------------------------------------------------------------------
>
> Key: YARN-1395
> URL: https://issues.apache.org/jira/browse/YARN-1395
> Project: Hadoop YARN
> Issue Type: Bug
> Components: applications/distributed-shell
> Affects Versions: 3.0.0, 2.2.0
> Reporter: Chris Nauroth
> Assignee: Chris Nauroth
> Attachments: YARN-1395.1.patch, YARN-1395.2.patch
>
>
> Distributed shell launched with the debug flag will run
> {{ApplicationMaster#dumpOutDebugInfo}}. This method launches an external
> process to run ls and print the contents of the current working directory.
> We've seen that this can cause the application master to hang on
> {{Process#waitFor}}.
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