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[MAPREDUCE-5543] In-memory map outputs can be leaked after shuffle completes in 0.23 - MapReduce - [issue]
...MergeManagerImpl#close adds the contents of inMemoryMergedMapOutputs and inMemoryMapOutputs to a list of map outputs that is subsequently processed, but it does not clear those sets.  T...
http://issues.apache.org/jira/browse/MAPREDUCE-5543    Author: Jason Lowe, 2013-12-10, 14:55
Re: Next releases - MapReduce - [mail # dev]
...I think a lot of confusion comes from the fact that the 2.x line is  starting to mature.  Before this there wasn't such a big contention of  what went into patch vs. minor rel...
   Author: Jason Lowe, 2013-11-13, 21:55
[expand - 1 more] - Re: test-patch failing with OOM errors in javah - MapReduce - [mail # dev]
...Pinged Bobby who has access to the machines, and this is indeed what is  happening.  There were two cases:  1) When TestUberAM times out the minicluster it is running along wi...
   Author: Jason Lowe, 2013-10-31, 22:20
[MAPREDUCE-5583] Ability to limit running map and reduce tasks - MapReduce - [issue]
...It would be nice if users could specify a limit to the number of map or reduce tasks that are running simultaneously.  Occasionally users are performing operations in tasks that can lea...
http://issues.apache.org/jira/browse/MAPREDUCE-5583    Author: Jason Lowe, 2013-10-18, 19:30
Re: [VOTE] Release Apache Hadoop 2.2.0 - MapReduce - [mail # dev]
...+1 (binding)  - Verified signatures and checksums - Deployed binary tarball to a single-node cluster and successfully ran  sample jobs - Built source, deployed to a single-node clu...
   Author: Jason Lowe, 2013-10-09, 14:45
[MAPREDUCE-5574] History server returns 500 error on job conf page if user lacks permissions - MapReduce - [issue]
...If a user does not have view ACL permissions for a job and tries to view the job configuration URL (i.e.: .../jobhistory/conf/<jobid>) then the history server returns a 500 error rathe...
http://issues.apache.org/jira/browse/MAPREDUCE-5574    Author: Jason Lowe, 2013-10-08, 22:13
[MAPREDUCE-5332] Support token-preserving restart of history server - MapReduce - [issue]
...To better support rolling upgrades through a cluster, the history server needs the ability to restart without losing track of delegation tokens....
http://issues.apache.org/jira/browse/MAPREDUCE-5332    Author: Jason Lowe, 2013-09-28, 14:46
[MAPREDUCE-5475] MRClientService does not verify ACLs properly - MapReduce - [issue]
...When MRClientService receives requests, it calls verifyAndGetJob which does not actually validate that the current user has the proper access....
http://issues.apache.org/jira/browse/MAPREDUCE-5475    Author: Jason Lowe, 2013-09-05, 14:42
[MAPREDUCE-4955] NM container diagnostics for excess resource usage can be lost if task fails while being killed - MapReduce - [issue]
...When a nodemanager kills a container for being over resource budgets, it provides a diagnostics message for the container status explaining why it was killed.  However this message can ...
http://issues.apache.org/jira/browse/MAPREDUCE-4955    Author: Jason Lowe, 2013-08-29, 01:24
[MAPREDUCE-4693] Historyserver should provide counters for failed tasks - MapReduce - [issue]
...Currently the historyserver is not providing counters for failed tasks, even though they are available via the AM as long as the job is still running.  Those counters are lost when the ...
http://issues.apache.org/jira/browse/MAPREDUCE-4693    Author: Jason Lowe, 2013-08-27, 23:22
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