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[MAPREDUCE-5584] ShuffleHandler becomes unresponsive during gridmix runs and can leak file descriptors
...While running gridmix on 2.3 we noticed that jobs are running much slower than normal. We tracked this down to reducers having difficulties shuffling data from maps. Details to f...
, 2014-01-24, 15:55
[MAPREDUCE-5717] Task pings are interpreted as task progress
, 2014-01-18, 13:27
[MAPREDUCE-5503] TestMRJobClient.testJobClient is failing
...TestMRJobClient.testJobClient is failing on trunk and causing precommit builds to complain:testJobClient(org.apache.hadoop.mapreduce.TestMRJobClient) Time elapsed: 26.361 sec <...
, 2013-12-11, 03:49
[MAPREDUCE-5543] In-memory map outputs can be leaked after shuffle completes in 0.23
...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...
, 2013-12-10, 14:55
[MAPREDUCE-5574] History server returns 500 error on job conf page if user lacks permissions
...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...
, 2013-10-08, 22:13
[MAPREDUCE-5332] Support token-preserving restart of history server
...To better support rolling upgrades through a cluster, the history server needs the ability to restart without losing track of delegation tokens....
, 2013-09-28, 14:46
[MAPREDUCE-5475] MRClientService does not verify ACLs properly
...When MRClientService receives requests, it calls verifyAndGetJob which does not actually validate that the current user has the proper access....
, 2013-09-05, 14:42
[MAPREDUCE-4693] Historyserver should provide counters for failed tasks
...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 ...
, 2013-08-27, 23:22
[MAPREDUCE-4804] Counters for the applicationmaster
...We should provide counters for the AM itself to track interesting items such as time spent garbage collecting, cpu time spent, etc. Currently there are no counters specifically for the...
, 2013-08-20, 14:30
[MAPREDUCE-5445] MRApp tries to stop services from AsyncDispatcher thread
...MRApp tries to stop services from within a service thread. That causes the stop call itself to be interrupted and not all services are stopped....
, 2013-08-02, 17:17
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