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https://issues.apache.org/jira/browse/YARN-1386?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13820485#comment-13820485
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Hadoop QA commented on YARN-1386:
---------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12613421/YARN-1386.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-nodemanager.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-YARN-Build/2426//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/2426//console
This message is automatically generated.
> NodeManager mistakenly loses resources and relocalizes them
> -----------------------------------------------------------
>
> Key: YARN-1386
> URL: https://issues.apache.org/jira/browse/YARN-1386
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Affects Versions: 0.23.10, 2.2.0
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Priority: Critical
> Attachments: YARN-1386.patch, YARN-1386.patch
>
>
> When a local resource that should already be present is requested again, the
> nodemanager checks to see if it still present. However the method it uses to
> check for presence is via File.exists() as the user of the nodemanager
> process. If the resource was a private resource localized for another user,
> it will be localized to a location that is not accessible by the nodemanager
> user. Therefore File.exists() returns false, the nodemanager mistakenly
> believes the resource is no longer available, and it proceeds to localize it
> over and over.
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