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[MAPREDUCE-3899] Locking not correct in org.apache.hadoop.yarn.server.resourcemanager.ApplicationMasterService.allocate(AllocateRequest request) - MapReduce - [issue]
...Looks like the lock taken in this is broken. It takes a lock on lastResponse object and then puts a new lastResponse object into the map. At this point a new thread entering this function wi...
http://issues.apache.org/jira/browse/MAPREDUCE-3899    Author: Bikas Saha, 2012-04-23, 22:16
[MAPREDUCE-4128] AM Recovery expects all attempts of a completed task to also be completed. - MapReduce - [issue]
...The AM seems to assume that all attempts of a completed task (from a previous AM incarnation) would also be completed. There is at least one case in which this does not hold. Case being canc...
http://issues.apache.org/jira/browse/MAPREDUCE-4128    Author: Bikas Saha, 2012-04-14, 14:03
[MAPREDUCE-3986] TaskAttemptCompletionEvent not being sent for task attempts that were killed after a sibling attempt succeeds - MapReduce - [issue]
...When TaskImpl transitions to SUCCEEDED then it kills the other running task attempts. In the SUCCEEDED state the TaskImpl state machine ignores T_ATTEMPT_KILLED events from those killed atte...
http://issues.apache.org/jira/browse/MAPREDUCE-3986    Author: Bikas Saha, 2012-03-08, 02:59
[MAPREDUCE-3985] handleTaskAttemptCompletion() called twice for same task attempt from KillWaitAttemptKilledTransition & AttemptKilledTransition - MapReduce - [issue]
...TaskImpl state changes to KILL_WAIT after an AttemptKilledTransition. When the attempt reports that it has actually been killed then KILL_WAIT transitions out via the KillWaitAttemptKilledTr...
http://issues.apache.org/jira/browse/MAPREDUCE-3985    Author: Bikas Saha, 2012-03-07, 23:16
[MAPREDUCE-3976] TestRMContainerAllocator failing - MapReduce - [issue]
...The following stack trace is being generated========org.apache.hadoop.metrics2.MetricsException: Metrics source JvmMetrics already exists! at org.apache.hadoop.metrics2.lib.DefaultMetricsSys...
http://issues.apache.org/jira/browse/MAPREDUCE-3976    Author: Bikas Saha, 2012-03-07, 13:25
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