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Posted to yarn-issues@hadoop.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2014/11/01 12:51:44 UTC
[jira] [Commented] (YARN-2701) Potential race condition in
startLocalizer when using LinuxContainerExecutor
[ https://issues.apache.org/jira/browse/YARN-2701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14193110#comment-14193110 ]
Hudson commented on YARN-2701:
------------------------------
SUCCESS: Integrated in Hadoop-Yarn-trunk #730 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/730/])
YARN-2701. Addendum patch. Potential race condition in startLocalizer when using LinuxContainerExecutor. Contributed by Xuan Gong (xgong: rev 86ff28dea09037795f9a76d1712d741d04e33bfe)
* 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/native/container-executor/impl/container-executor.h
> 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, YARN-2701.addendum.1.patch, YARN-2701.addendum.2.patch, YARN-2701.addendum.3.patch, YARN-2701.addendum.4.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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