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https://issues.apache.org/jira/browse/YARN-1185?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13795511#comment-13795511
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Hadoop QA commented on YARN-1185:
---------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12608545/YARN-1185.1.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-resourcemanager.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-YARN-Build/2178//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/2178//console
This message is automatically generated.
> FileSystemRMStateStore can leave partial files that prevent subsequent
> recovery
> -------------------------------------------------------------------------------
>
> Key: YARN-1185
> URL: https://issues.apache.org/jira/browse/YARN-1185
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Affects Versions: 2.1.0-beta
> Reporter: Jason Lowe
> Assignee: Omkar Vinit Joshi
> Attachments: YARN-1185.1.patch
>
>
> FileSystemRMStateStore writes directly to the destination file when storing
> state. However if the RM were to crash in the middle of the write, the
> recovery method could encounter a partially-written file and either outright
> crash during recovery or silently load incomplete state.
> To avoid this, the data should be written to a temporary file and renamed to
> the destination file afterwards.
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