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https://issues.apache.org/jira/browse/YARN-2701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14178305#comment-14178305
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Hudson commented on YARN-2701:
------------------------------
SUCCESS: Integrated in Hadoop-Yarn-trunk #719 (See
[https://builds.apache.org/job/Hadoop-Yarn-trunk/719/])
YARN-2701. Potential race condition in startLocalizer when using
LinuxContainerExecutor. Contributed by Xuan Gong (jianhe: rev
2839365f230165222f63129979ea82ada79ec56e)
*
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/TestLinuxContainerExecutor.java
* hadoop-yarn-project/CHANGES.txt
*
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/container-executor.c
*
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/LinuxContainerExecutor.java
Missing file for YARN-2701 (jianhe: rev
4fa1fb3193bf39fcb1bd7f8f8391a78f69c3c302)
*
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/MockContainerLocalizer.java
> Potential race condition in startLocalizer when using LinuxContainerExecutor
> ------------------------------------------------------------------------------
>
> Key: YARN-2701
> URL: https://issues.apache.org/jira/browse/YARN-2701
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Xuan Gong
> Assignee: Xuan Gong
> Priority: Blocker
> Fix For: 2.6.0
>
> Attachments: YARN-2701.1.patch, YARN-2701.2.patch, YARN-2701.3.patch,
> YARN-2701.4.patch, YARN-2701.5.patch, YARN-2701.6.patch
>
>
> When using LinuxContainerExecutor do startLocalizer, we are using native code
> container-executor.c.
> {code}
> if (stat(npath, &sb) != 0) {
> if (mkdir(npath, perm) != 0) {
> {code}
> We are using check and create method to create the appDir under /usercache.
> But if there are two containers trying to do this at the same time, race
> condition may happen.
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