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[MAPREDUCE-19] TaskMemoryMonitorThread is not stopped in close - MapReduce - [issue]
...The task memory monitor thread is created in initialize, but is not stopped in close. So, if there's a reinit, this can result in a thread becoming a zombie as the thread variable is replace...
http://issues.apache.org/jira/browse/MAPREDUCE-19    Author: Hemanth Yamijala, 2011-12-31, 09:03
[MAPREDUCE-23] Start times for some tasks are missing from task reports after job tracker restart - MapReduce - [issue]
...When a JobTracker with the mapred.jobtracker.restart.recover option turned on, restarts, it recovers task statuses from all tasks recorded in the history for running jobs. Task trackers rejo...
http://issues.apache.org/jira/browse/MAPREDUCE-23    Author: Hemanth Yamijala, 2011-12-31, 08:53
[MAPREDUCE-17] Changing priority of a completed job causes problems in JobInProgressListeners - MapReduce - [issue]
...If the priority of a completed job is changed, a JobChangeEvent is raised and the JobInProgressListeneners, like the capacity scheduler, are notified. Most implementations handle the event b...
http://issues.apache.org/jira/browse/MAPREDUCE-17    Author: Hemanth Yamijala, 2011-12-31, 08:52
[MAPREDUCE-824] Support a hierarchy of queues in the capacity scheduler - MapReduce - [issue]
...Currently in Capacity Scheduler, cluster capacity is divided among the queues based on the queue capacity. These queues typically represent an organization and the capacity of the queue repr...
http://issues.apache.org/jira/browse/MAPREDUCE-824    Author: Hemanth Yamijala, 2011-10-18, 07:01
Re: How to record the bad records encountered by hadoop - MapReduce - [mail # user]
...Hi,  On Tue, Dec 21, 2010 at 1:36 AM, felix gao  wrote:  If you set the option "mapreduce.task.files.preserve.failedtasks", the input files that caused the failure would be pr...
   Author: Hemanth Yamijala, 2010-12-26, 07:46
Re: Memory Manager in Hadoop MR - MapReduce - [mail # user]
...Hi,  On Thu, Dec 9, 2010 at 4:35 PM, Pedro Costa  wrote:  There are streaming and pipes map/reduce applications that launch native processes from the map/reduce tasks that are...
   Author: Hemanth Yamijala, 2010-12-10, 02:39
Re: Launching Tasks From JobTracker - MapReduce - [mail # dev]
...[Moving to mapreduce-dev, copying common-dev]  Hi,  On Thu, Sep 9, 2010 at 11:30 AM, radheshyam nanduri  wrote:  Currently, the model supported to plug-in schedulers to H...
   Author: Hemanth Yamijala, 2010-09-10, 13:16
Re: Log4j Logger in MapReduce applications - MapReduce - [mail # user]
...Hi,  On Mon, Sep 6, 2010 at 9:49 AM, Rita Liu  wrote:  logger messages added to the mapper and reducers are added to user logs that are generated on the cluster where the task...
   Author: Hemanth Yamijala, 2010-09-06, 05:47
[MAPREDUCE-1607] Task controller may not set permissions for a task cleanup attempt's log directory - MapReduce - [issue]
...Task controller uses the INITIALIZE_TASK command to initialize task attempt and task log directories. For cleanup tasks, task attempt directories are named as task-attempt-id.cleanup. But lo...
http://issues.apache.org/jira/browse/MAPREDUCE-1607    Author: Hemanth Yamijala, 2010-08-24, 21:21
[MAPREDUCE-1398] TaskLauncher remains stuck on tasks waiting for free nodes even if task is killed. - MapReduce - [issue]
...Tasks could be assigned to trackers for slots that are running other tasks in a commit pending state. This is an optimization done to pipeline task assignment and launch. When the task reach...
http://issues.apache.org/jira/browse/MAPREDUCE-1398    Author: Hemanth Yamijala, 2010-08-24, 21:20
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