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From "Xuan Gong (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-2701) Potential race condition in startLocalizer when using LinuxContainerExecutor
Date Thu, 16 Oct 2014 23:57:33 GMT
Xuan Gong created YARN-2701:
-------------------------------

             Summary: 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


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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