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[MAPREDUCE-3252] MR2: Map tasks rewrite data once even if output fits in sort buffer - MapReduce - [issue]
...I found that, even if the output of a map task fits entirely in its sort buffer, it was rewriting the output entirely rather than just renaming the first spill into place. This is due to Raw...
http://issues.apache.org/jira/browse/MAPREDUCE-3252    Author: Todd Lipcon, 2011-11-15, 00:48
[MAPREDUCE-3187] Add names for various unnamed threads in MR2 - MapReduce - [issue]
...Simple patch to add thread names for all the places we use Executors, etc....
http://issues.apache.org/jira/browse/MAPREDUCE-3187    Author: Todd Lipcon, 2011-11-15, 00:48
[MAPREDUCE-2331] Add coverage of task graph servlet to fair scheduler system test - MapReduce - [issue]
...Would be useful to hit the TaskGraph servlet in the fair scheduler system test. This way, when run under JCarder, it will check for any lock inversions in this code....
http://issues.apache.org/jira/browse/MAPREDUCE-2331    Author: Todd Lipcon, 2011-11-15, 00:48
[MAPREDUCE-2882] TestLineRecordReader depends on ant jars - MapReduce - [issue]
...This test is currently importing an ant utility class to read a file - this dependency doesn't work in mavenized land....
http://issues.apache.org/jira/browse/MAPREDUCE-2882    Author: Todd Lipcon, 2011-11-15, 00:48
[MAPREDUCE-2311] TestFairScheduler failing on trunk - MapReduce - [issue]
...Most of the test cases in this test are failing on trunk, unclear how long since the contrib tests weren't running while the core tests were failed....
http://issues.apache.org/jira/browse/MAPREDUCE-2311    Author: Todd Lipcon, 2011-11-15, 00:48
[MAPREDUCE-2258] IFile reader closes stream and compressor in wrong order - MapReduce - [issue]
...In IFile.Reader.close(), we return the decompressor to the pool and then call close() on the input stream. This is backwards and causes a rare race in the case of LzopCodec, since LzopInputS...
http://issues.apache.org/jira/browse/MAPREDUCE-2258    Author: Todd Lipcon, 2011-11-15, 00:48
[MAPREDUCE-3163] JobClient spews errors when killing MR2 job - MapReduce - [issue]
...When I used the "hadoop job" command line to kill a running MR2 job, I got a bunch of error spew on the console, despite the kill actually taking effect....
http://issues.apache.org/jira/browse/MAPREDUCE-3163    Author: Todd Lipcon, 2011-11-15, 00:48
[MAPREDUCE-2740] MultipleOutputs in new API creates needless TaskAttemptContexts - MapReduce - [issue]
...MultipleOutputs.write creates a new TaskAttemptContext, which we've seen to take a significant amount of CPU. The TaskAttemptContext constructor creates a JobConf, gets current UGI, etc. I d...
http://issues.apache.org/jira/browse/MAPREDUCE-2740    Author: Todd Lipcon, 2011-11-15, 00:48
[expand - 2 more] - Re: Understanding the MapOutput - MapReduce - [mail # dev]
...Hi Pedro,  It sounds like you're on the right track, but I don't really have time to help much beyond pointing you in the right direction. Time to put on your debugging hat :) Maybe do ...
   Author: Todd Lipcon, 2011-11-04, 18:27
[MAPREDUCE-3277] TestSeveral is failing in 0.23 - MapReduce - [issue]
...Haven't looked into it yet, but TestSeveral has been failing in the 0.23 MR build since 10/24...
http://issues.apache.org/jira/browse/MAPREDUCE-3277    Author: Todd Lipcon, 2011-11-04, 07:53
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