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Arun C Murthy
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[MAPREDUCE-4438] Add client side for Unmanaged-AMs (MAPREDUCE-4427)
...MAPREDUCE-4427 added server side support for umanaged AM's. This tracks creating client side supporting pieces.The basic flow of the client is as follows1) accepts a cmd line for the AM. Opt...
, 2012-08-21, 05:34
[MAPREDUCE-4472] Support secure AM launch for unmanaged AM's
...Currently unmanaged AM launch does not get security tokens because tokens are passed by the RM to the AM via the NM during AM container launch. For unmanaged AM's the RM can send tokens in t...
, 2012-07-24, 06:23
[MAPREDUCE-4369] Fix streaming job failures with WindowsResourceCalculatorPlugin
...Some streaming jobs use local mode job runs that do not start tasks trackers. In these cases, the jvm context is not setup and hence local mode execution causes the code to crash.Fix is to n...
, 2012-07-05, 07:05
[MAPREDUCE-4203] Create equivalent of ProcfsBasedProcessTree for Windows
...ProcfsBasedProcessTree is used by the TaskTracker to get process information like memory and cpu usage. This information is used to manage resources etc. The current implementation is based ...
, 2012-06-21, 01:35
[MAPREDUCE-4260] Use JobObject to spawn tasks on Windows
...Currently, the Windows version spawns the task as a normal cmd shell from which other downstream exe's are spawned. However, this is not bullet proof because if an intermediate process exits...
, 2012-06-16, 00:34
[MAPREDUCE-4263] Use taskkill /T to terminate tasks on Windows
...On Linux setsid is used to link the processes spawned by the tasks into the same session. So termination of the task terminates the entire tree. We need to do the same for Windows. This is n...
, 2012-06-11, 20:43
[MAPREDUCE-4331] TaskAttemptListenerImpl.statusUpdate and TaskAttemptListenerImpl.ping never return false
...If a task has been abandoned by the AM but not terminated at the NM, then it will continue to contact the AM. The AM needs to send it a false value in the response to status/ping and that wi...
, 2012-06-08, 18:08
[MAPREDUCE-4204] Refactor ProcfsBasedProcessTree to make the resource collection object pluggable
...Making it a pluggable interface will allow replacing the procfs based implementation with ones for other platforms....
, 2012-05-21, 07:32
[MAPREDUCE-4259] TestDatanodeBlockScanner and TestReplication fail intermittently on Windows
...The tests change the block length to corrupt the data block. If the block file is opened by the datanode then the test can concurrently modify it on Linux but such concurrent modification is...
, 2012-05-15, 17:21
[MAPREDUCE-4201] Getting PID not working on Windows. Termination of Task/TaskJVM's not working
...Child Task not reporting PID because of Linux specific shell script implementation.Signaling task termination currently disabled by the initial Windows patch....
, 2012-04-27, 22:57
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