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Re: hadoop tasktracker - MapReduce - [mail # user]
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...Pedro, ow Did you actually notice this happening ? Also, can you give some information about the cluster where you're running into this problem - like is it a single node / pseud...
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Author: Hemanth Yamijala,
2010-06-10, 08:00
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Re: Speculative Execution and Streaming - MapReduce - [mail # user]
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...Greg, I am wondering if you are hitting https://issues.apache.org/jira/browse/MAPREDUCE-1073. In M/R pipes jobs, the map task progress moves to 100% as soon as the input is read...
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Author: Hemanth Yamijala,
2010-05-28, 09:57
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Re: Incorrect dates on job tracker history - MapReduce - [mail # user]
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...James, ur he This has been the behavior of the History viewer for long that it shows the timestamp when the JobTracker restarted rather than Job start time. There has been lot of...
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Author: Hemanth Yamijala,
2010-05-18, 01:44
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Re: Number of map tasks spawned - MapReduce - [mail # user]
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...On Sun, Apr 25, 2010 at 4:28 PM, Praveen Sripati wrote: The former....
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Author: Hemanth Yamijala,
2010-04-27, 12:01
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Re: Question about jobtracker metrics - MapReduce - [mail # user]
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...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 ...
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Author: Hemanth Yamijala,
2010-04-27, 11:38
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[MAPREDUCE-1575] TestStreamingAsDifferentUser.testStreamingWithDistCache tries to set permissions for a non-existent file. - MapReduce - [issue]
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...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...
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http://issues.apache.org/jira/browse/MAPREDUCE-1575
Author: Hemanth Yamijala,
2010-03-08, 18:52
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[MAPREDUCE-828] Provide a mechanism to pause the jobtracker - MapReduce - [issue]
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...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...
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http://issues.apache.org/jira/browse/MAPREDUCE-828
Author: Hemanth Yamijala,
2010-02-23, 18:18
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[MAPREDUCE-1396] Display more details about memory usage on jobtracker web UI - MapReduce - [issue]
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...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...
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http://issues.apache.org/jira/browse/MAPREDUCE-1396
Author: Hemanth Yamijala,
2010-01-22, 04:55
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[MAPREDUCE-1331] TestMiniMRWithDFS.testWithDFSWithDefaultPort inadvertently mistyped - MapReduce - [issue]
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...One of the patches, possibly MAPREDUCE-181, inadvertently mistyped TestMiniMRWithDFS.testWithDFSWithDefaultPort to tesWithDFSWithDefaultPort. As a result it wouldn't run as a JUnit test....
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http://issues.apache.org/jira/browse/MAPREDUCE-1331
Author: Hemanth Yamijala,
2010-01-05, 15:58
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[MAPREDUCE-1099] Setup and cleanup tasks could affect job latency if they are caught running on bad nodes - MapReduce - [issue]
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...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...
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http://issues.apache.org/jira/browse/MAPREDUCE-1099
Author: Hemanth Yamijala,
2009-12-14, 20:01
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