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https://issues.apache.org/jira/browse/YARN-2755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14187432#comment-14187432
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Hadoop QA commented on YARN-2755:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12677678/YARN-2755.v3.patch
against trunk revision e226b5b.
{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}. There were no new javadoc warning messages.
{color:red}-1 eclipse:eclipse{color}. The patch failed to build with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 2.0.3) 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 .
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-YARN-Build/5611//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/5611//console
This message is automatically generated.
> NM fails to clean up usercache_DEL_<timestamp> dirs after YARN-661
> ------------------------------------------------------------------
>
> Key: YARN-2755
> URL: https://issues.apache.org/jira/browse/YARN-2755
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Siqi Li
> Assignee: Siqi Li
> Priority: Critical
> Attachments: YARN-2755.v1.patch, YARN-2755.v2.patch,
> YARN-2755.v3.patch
>
>
> When NM restarts frequently due to some reason, a large number of directories
> like these left in /data/disk$num/yarn/local/:
> /data/disk1/yarn/local/usercache_DEL_1414372756105
> /data/disk1/yarn/local/usercache_DEL_1413557901696
> /data/disk1/yarn/local/usercache_DEL_1413657004894
> /data/disk1/yarn/local/usercache_DEL_1413675321860
> /data/disk1/yarn/local/usercache_DEL_1414093167936
> /data/disk1/yarn/local/usercache_DEL_1413565841271
> These directories are empty, but take up 100M+ due to the number of them.
> There were 38714 on the machine I looked at per data disk.
> It appears to be a regression introduced by YARN-661
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