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Re: Profiling Hadoop Map Reduce with the 20.2 API - MapReduce - [mail # user]
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...Hi, looking on ing). for far All APIs in the deprecated JobConf class are wrappers around the Configuration API that you probably are using in the 20.2 new API. For e.g. : ...
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Author: Hemanth Yamijala,
2010-08-13, 05:16
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Re: What's speculative tasks - MapReduce - [mail # user]
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...Pedro, On Sun, Jul 25, 2010 at 7:33 PM, Pedro Costa wrote: When the MR framework detects that some tasks are running slower than others in the job, it has an option to laun...
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Author: Hemanth Yamijala,
2010-07-26, 04:21
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[MAPREDUCE-591] TestStreamingStderr fails occassionally - MapReduce - [issue]
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...TestStreamingStderr fails occassionally with a timeout on trunk....
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http://issues.apache.org/jira/browse/MAPREDUCE-591
Author: Hemanth Yamijala,
2010-07-06, 10:44
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Re: Shuffle Error: Exceeded MAX_FAILED_UNIQUE_FETCHES; bailing-out. - MapReduce - [mail # user]
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...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...
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Author: Hemanth Yamijala,
2010-07-06, 08:34
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[MAPREDUCE-763] Capacity scheduler should clean up reservations if it runs tasks on nodes other than where it has made reservations - MapReduce - [issue]
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...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...
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http://issues.apache.org/jira/browse/MAPREDUCE-763
Author: Hemanth Yamijala,
2010-07-02, 00:04
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Re: Partition - Distribution of map outputs - MapReduce - [mail # user]
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...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 ...
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Author: Hemanth Yamijala,
2010-07-01, 02:37
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Re: Who creates job.jar? - MapReduce - [mail # user]
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...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...
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Author: Hemanth Yamijala,
2010-06-25, 10:32
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Re: Custom File reader - MapReduce - [mail # user]
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...Steven, I can . Could you look at JobConf.setInputFormat() API to set your input format ? Thanks Hemanth...
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Author: Hemanth Yamijala,
2010-06-25, 04:43
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Re: Shuffle Error: Exceeded MAX_FAILED_UNIQUE_FETCHES; bailing-out. - MapReduce - [mail # user]
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...Hi, t: roblem. It catches attention that changing the code to use a substring is causing a difference. Assuming it is consistent and not a red herring, can you look at the counte...
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Author: Hemanth Yamijala,
2010-06-25, 04:40
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Re: How many ports and processes are open/created in MR? - MapReduce - [mail # user]
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...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...
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Author: Hemanth Yamijala,
2010-06-24, 02:00
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