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Kihwal Lee commented on MAPREDUCE-2915: --------------------------------------- Sorry, I misread the code in trunk/0.23. They do have a similar problem. MAPREDUCE-3259 has been filed. > LinuxTaskController does not work when JniBasedUnixGroupsNetgroupMapping or > JniBasedUnixGroupsMapping is enabled > ---------------------------------------------------------------------------------------------------------------- > > Key: MAPREDUCE-2915 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-2915 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: task-controller > Affects Versions: 0.20.205.0 > Reporter: Kihwal Lee > Assignee: Kihwal Lee > Fix For: 0.20.205.0 > > Attachments: linux_tc_fix.patch.txt, mr-2915.patch.txt > > > When a job is submitted, LinuxTaskController launches the native > task-controller binary for job initialization. The native program does a > series of prep work and call execv() to run JobLocalizer. It was observed > that JobLocalizer does fails to run when JniBasedUnixGroupsNetgroupMapping or > JniBasedUnixGroupsMapping is enabled, resulting in 100% job failures. > JobLocalizer normally does not need the native library (libhadoop) for its > functioning, but enabling a JNI user-to-group mapping function cause it to > load the library. However, JobLocalizer cannot locate the library since > "java.library.path" is not set. > The proposed solution is to pass the java.library.path property through > task-controller. LinuxTaskController already does it when launching the task > log truncater. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira