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[MAPREDUCE-514] Check for invalid queues in capacity scheduler - MapReduce - [issue]
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...The ResourceManagerConf class that is being moved to the capacity scheduler of HADOOP-3445 needs to check for a queue name that is not configured in the resource-manager-conf.xml file in its...
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http://issues.apache.org/jira/browse/MAPREDUCE-514
Author: Hemanth Yamijala,
2009-11-17, 06:26
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[MAPREDUCE-860] Modify Queue APIs to support a hierarchy of queues - MapReduce - [issue]
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...MAPREDUCE-853 proposes to introduce a hierarchy of queues into the Map/Reduce framework. This JIRA is for defining changes to the APIs related to queues....
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http://issues.apache.org/jira/browse/MAPREDUCE-860
Author: Hemanth Yamijala,
2009-09-07, 06:54
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[MAPREDUCE-40] Memory management variables need a backwards compatibility option after HADOOP-5881 - MapReduce - [issue]
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...HADOOP-5881 modified variables related to memory management without looking at the backwards compatibility angle. This JIRA is to adress the gap. Marking it a blocker for 0.20.1...
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http://issues.apache.org/jira/browse/MAPREDUCE-40
Author: Hemanth Yamijala,
2009-09-04, 11:07
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[MAPREDUCE-802] Simplify the job updated event notification between Jobtracker and schedulers - MapReduce - [issue]
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...HADOOP-4053 and HADOOP-4149 added events to take care of updates to the state / property of a job like the run state / priority of a job notified to the scheduler. We've seen some issues wit...
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http://issues.apache.org/jira/browse/MAPREDUCE-802
Author: Hemanth Yamijala,
2009-08-28, 05:16
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[MAPREDUCE-897] Provide information captured as part of JobTrackerStatistics via the Hadoop metrics API - MapReduce - [issue]
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...MAPREDUCE-467 introduced a framework to collect statistics per node on a fixed set of intervals. Presently there is support for collecting statistics related to number of task failures and a...
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http://issues.apache.org/jira/browse/MAPREDUCE-897
Author: Hemanth Yamijala,
2009-08-21, 04:37
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[MAPREDUCE-67] Few tasks failed while creating the work directory for a job, when job tracker was restarted - MapReduce - [issue]
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...A randomwriter job was running when the job tracker restarted. After the jobtracker restarted, some tasktrackers were sent a reinit action. After this, some new tasks of the random writer we...
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http://issues.apache.org/jira/browse/MAPREDUCE-67
Author: Hemanth Yamijala,
2009-08-11, 05:39
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[MAPREDUCE-539] Implement a config validator tool for the capacity scheduler - MapReduce - [issue]
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...The capacity scheduler sanity checks configuration when it starts and halts if there are any problems found. For ease of deployment, it would help to have a simple utility that will validate...
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http://issues.apache.org/jira/browse/MAPREDUCE-539
Author: Hemanth Yamijala,
2009-07-29, 08:47
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[MAPREDUCE-803] Provide a command line option to clean up jobtracker system directory - MapReduce - [issue]
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...When the JT is restarted, the mapreduce system directory's contents are used for job recovery. For sites that use this feature, there might be instances when we don't want to restart to read...
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http://issues.apache.org/jira/browse/MAPREDUCE-803
Author: Hemanth Yamijala,
2009-07-28, 06:05
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[MAPREDUCE-762] Task's process trees may not be killed if a TT is restarted - MapReduce - [issue]
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...Some work has been done to make sure the tasktrackers kill process trees of tasks when they finish (either successfully, or with failures or when they are killed). Related JIRAs are HADOOP-2...
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http://issues.apache.org/jira/browse/MAPREDUCE-762
Author: Hemanth Yamijala,
2009-07-16, 07:30
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[MAPREDUCE-3] Set mapred.child.ulimit automatically to the value of the RAM limits for a job, if they are set - MapReduce - [issue]
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...Memory based monitoring and scheduling allow users to set memory limits for the tasks of their jobs. This parameter is the total memory taken by the task, and any children it may launch (for...
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http://issues.apache.org/jira/browse/MAPREDUCE-3
Author: Hemanth Yamijala,
2009-07-11, 00:51
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