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[MAPREDUCE-5672] Provide optional RollingFileAppender for container log4j (syslog)
...This JIRA is an alternative take on YARN-1130We propose providing an option of using a RollingFileAppender(RFA)-based implementation of container log appender as means of log size control vi...
, 2014-07-16, 23:05
[MAPREDUCE-5813] YarnChild does not load job.xml with mapreduce.job.classloader=true
...YarnChild.main uses JobConf.addResource(String) to load job.xml that relies on class loading. When mapreduce.job.classloader=true the job-speicific part of the class path is separated from C...
, 2014-07-02, 11:21
[MAPREDUCE-5815] Fix NPE in TestMRAppMaster
...Working MAPREDUCE-5813 I stumbled on NPE's in TestMRAppMaster. They seem to be introduced by MAPREDUCE-5805....
, 2014-06-30, 09:18
[MAPREDUCE-5941] JobCounter's should be organized in groups for map and reduce
...JobCounters are currently organized counterintuitively. We duplicate the same logical counter. For example, there is NUM_FAILED_MAPS and NUM_FAILED_REDUCES instead of NUM_FAILED_TASKS ...
, 2014-06-26, 00:52
[MAPREDUCE-5774] Job overview in History UI should list reducer phases in chronological order
...Current order:Average Map Time 9secAverage Reduce Time 0secAverage Shuffle Time 22secAverage Merge Time 0secProposed order:Average Map Time &nb...
, 2014-05-14, 23:48
[MAPREDUCE-5887] Move split creation from submission client to MRAppMaster
...This JIRA is filed to improve scalability of job submission, specifically when there is a significant latency between the submission client and the cluster nodes RM and NN, e.g. in a multi-d...
, 2014-05-14, 10:39
[MAPREDUCE-4834] LinuxTaskController DELETE_AS_USER should try to delete as many paths as possible
...When task-controller.c:delete_path iterates inodes in a directory tree, it may encounter a deletion failure. However, other directories/files may well be deletable, and the tree walk should ...
, 2014-04-15, 19:34
[MAPREDUCE-5825] Provide diagnostics for reducers killed during ramp down
...Since we operate many queues pretty much at their capacity it some times happens that a failed mapper causes a reducer ramp down. However, the user can only see "Container killed by the Appl...
, 2014-04-11, 16:00
[MAPREDUCE-5773] Provide dedicated MRAppMaster syslog length limit
...Currently mapreduce.task.userlog.limit.kb controls both the length of task attempt logs and MA-AM attempt logs. Obviously, MR-AM log is not userlog.We are interested in keeping MR-AM log eit...
, 2014-04-10, 14:11
[MAPREDUCE-5754] Preserve Job diagnostics in history
...History does not store the runtime diagnostics information. JobHistoryParser tries to blame a task. We propose to preserve the original runtime diagnostics that covers all the cases includin...
, 2014-04-10, 14:11
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