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Re: Number of map tasks spawned - MapReduce - [mail # user]
...On Sun, Apr 25, 2010 at 4:28 PM, Praveen Sripati  wrote:  The former....
   Author: Hemanth Yamijala, 2010-04-27, 12:01
Re: Question about jobtracker metrics - MapReduce - [mail # user]
...On Tue, Apr 27, 2010 at 12:43 AM, Harold Lim  wrote:  maps_launched and reduces_launched are metrics that are incremented every time a map / reduce task is picked by the scheduler ...
   Author: Hemanth Yamijala, 2010-04-27, 11:38
[MAPREDUCE-1575] TestStreamingAsDifferentUser.testStreamingWithDistCache tries to set permissions for a non-existent file. - MapReduce - [issue]
...TestStreamingAsDifferentUser.testStreamingWithDistCache, in an effort to mock public distributed cache files, sets up world executable permissions on the parent directory of a public cache f...
http://issues.apache.org/jira/browse/MAPREDUCE-1575    Author: Hemanth Yamijala, 2010-03-08, 18:52
[MAPREDUCE-828] Provide a mechanism to pause the jobtracker - MapReduce - [issue]
...We've seen scenarios when we have needed to stop the namenode for a maintenance activity. In such scenarios, if the jobtracker (JT) continues to run, jobs would fail due to initialization or...
http://issues.apache.org/jira/browse/MAPREDUCE-828    Author: Hemanth Yamijala, 2010-02-23, 18:18
[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
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