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[MAPREDUCE-591] TestStreamingStderr fails occassionally - MapReduce - [issue]
...TestStreamingStderr fails occassionally with a timeout on trunk....
http://issues.apache.org/jira/browse/MAPREDUCE-591    Author: Hemanth Yamijala, 2010-07-06, 10:44
Re: Shuffle Error: Exceeded MAX_FAILED_UNIQUE_FETCHES; bailing-out. - MapReduce - [mail # user]
...Hi,  Sorry, I couldn't take a close look at the logs until now. Unfortunately, I could not see any huge difference between the success and failure case. Can you please check if things l...
   Author: Hemanth Yamijala, 2010-07-06, 08:34
[MAPREDUCE-763] Capacity scheduler should clean up reservations if it runs tasks on nodes other than where it has made reservations - MapReduce - [issue]
...Currently capacity scheduler makes a reservation on nodes for high memory jobs that cannot currently run at the time. It could happen that in the meantime other tasktrackers become free to r...
http://issues.apache.org/jira/browse/MAPREDUCE-763    Author: Hemanth Yamijala, 2010-07-02, 00:04
Re: Partition - Distribution of map outputs - MapReduce - [mail # user]
...Pedro,  On Thu, Jul 1, 2010 at 3:37 AM, Pedro Costa  wrote:  The number of mappers created will depend on the number of 'InputSplits' generated for the program inputs. How to ...
   Author: Hemanth Yamijala, 2010-07-01, 02:37
Re: Who creates job.jar? - MapReduce - [mail # user]
...Pedro,    job.jar is a name given by the Map/Reduce framework to any jar that is submitted with the map, reduce and other user classes. So, in your case the examples.jar is submitt...
   Author: Hemanth Yamijala, 2010-06-25, 10:32
Re: Custom File reader - MapReduce - [mail # user]
...Steven,   I can .  Could you look at JobConf.setInputFormat() API to set your input format ?  Thanks Hemanth...
   Author: Hemanth Yamijala, 2010-06-25, 04:43
Re: How many ports and processes are open/created in MR? - MapReduce - [mail # user]
...Pedro,   There are 2 daemons that are launched when the MapReduce framework starts - JobTracker and TaskTracker. Every map or reduce task runs in a separate process called Child (you co...
   Author: Hemanth Yamijala, 2010-06-24, 02:00
Re: hadoop tasktracker - MapReduce - [mail # user]
...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...
   Author: Hemanth Yamijala, 2010-06-10, 08:00
Re: Speculative Execution and Streaming - MapReduce - [mail # user]
...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...
   Author: Hemanth Yamijala, 2010-05-28, 09:57
Re: Incorrect dates on job tracker history - MapReduce - [mail # user]
...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...
   Author: Hemanth Yamijala, 2010-05-18, 01:44
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