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[MAPREDUCE-1396] Display more details about memory usage on jobtracker web UI - MapReduce - [issue]
...HDFS-850 is introducing changes to the NameNode web UI to display additional details of memory information. I think it will be good to have similar information for the jobtracker as well, pa...
http://issues.apache.org/jira/browse/MAPREDUCE-1396    Author: Hemanth Yamijala, 2010-01-22, 04:55
[MAPREDUCE-1331] TestMiniMRWithDFS.testWithDFSWithDefaultPort inadvertently mistyped - MapReduce - [issue]
...One of the patches, possibly MAPREDUCE-181, inadvertently mistyped TestMiniMRWithDFS.testWithDFSWithDefaultPort to tesWithDFSWithDefaultPort. As a result it wouldn't run as a JUnit test....
http://issues.apache.org/jira/browse/MAPREDUCE-1331    Author: Hemanth Yamijala, 2010-01-05, 15:58
[MAPREDUCE-1099] Setup and cleanup tasks could affect job latency if they are caught running on bad nodes - MapReduce - [issue]
...We found cases on our clusters where a setup task got scheduled on a bad node and took upwards of several minutes to run, adversely affecting job runtimes. Speculation did not help here as s...
http://issues.apache.org/jira/browse/MAPREDUCE-1099    Author: Hemanth Yamijala, 2009-12-14, 20:01
[MAPREDUCE-514] Check for invalid queues in capacity scheduler - MapReduce - [issue]
...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...
http://issues.apache.org/jira/browse/MAPREDUCE-514    Author: Hemanth Yamijala, 2009-11-17, 06:26
[MAPREDUCE-860] Modify Queue APIs to support a hierarchy of queues - MapReduce - [issue]
...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....
http://issues.apache.org/jira/browse/MAPREDUCE-860    Author: Hemanth Yamijala, 2009-09-07, 06:54
[MAPREDUCE-40] Memory management variables need a backwards compatibility option after HADOOP-5881 - MapReduce - [issue]
...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...
http://issues.apache.org/jira/browse/MAPREDUCE-40    Author: Hemanth Yamijala, 2009-09-04, 11:07
[MAPREDUCE-67] Few tasks failed while creating the work directory for a job, when job tracker was restarted - MapReduce - [issue]
...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...
http://issues.apache.org/jira/browse/MAPREDUCE-67    Author: Hemanth Yamijala, 2009-08-11, 05:39
[MAPREDUCE-539] Implement a config validator tool for the capacity scheduler - MapReduce - [issue]
...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...
http://issues.apache.org/jira/browse/MAPREDUCE-539    Author: Hemanth Yamijala, 2009-07-29, 08:47
[MAPREDUCE-550] Add support for scheduling jobs based on memory requirements to the Fairscheduler - MapReduce - [issue]
...In HADOOP-3759, we added the ability for users to specify jobs requesting for a certain amount of virtual memory. For e.g. users can say that their jobs require 2GB of memory to run. In HADO...
http://issues.apache.org/jira/browse/MAPREDUCE-550    Author: Hemanth Yamijala, 2009-06-20, 08:01
[MAPREDUCE-554] Improve limit handling in fairshare scheduler - MapReduce - [issue]
...The fairshare scheduler has a way by which it can limit the number of jobs in a pool by setting the maxRunningJobs parameter in its allocations definition. This limit is treated as a hard li...
http://issues.apache.org/jira/browse/MAPREDUCE-554    Author: Hemanth Yamijala, 2009-06-20, 08:01
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