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[MAPREDUCE-4422] YARN_APPLICATION_CLASSPATH needs a documented default value in YarnConfiguration - MapReduce - [issue]
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...MAPREDUCE-3505 allowed YARN_APPLICATION_CLASSPATH to be configurable.However, we didn't add a default value to YarnConfiguration, as-is the norm.Ran into it while investigating MAPREDUCE-442...
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http://issues.apache.org/jira/browse/MAPREDUCE-4422
Author: Arun C Murthy,
2012-07-18, 14:03
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Re: Hadoop compile - delete conf files - MapReduce - [mail # user]
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...This seems like a bug, can you pls open a jira? Thanks! On Jul 17, 2012, at 6:43 PM, Grandl Robert wrote: of these four files though? create the package. wrote: core...
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Author: Arun C Murthy,
2012-07-18, 02:41
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Re: MRv2 jobs fail when run with more than one slave - MapReduce - [mail # user]
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...Look at the NodeManager logs on perfgb0n0 and look for logs of container_1342570404456_0001_* and check for errors. Arun On Jul 17, 2012, at 5:33 PM, Trevor wrote: ad...
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Author: Arun C Murthy,
2012-07-18, 01:25
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Re: MRv2 jobs fail when run with more than one slave - MapReduce - [mail # user]
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...Trevor, It's hard for folks here to help you with CDH patchsets (it's their call on what they include), can you pls try with vanilla Apache hadoop-2.0.0-alpha and I'll try...
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Author: Arun C Murthy,
2012-07-17, 23:04
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Re: What exactly does the "CPU time spent (ms)" measure? - MapReduce - [mail # user]
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...Zhu, Do you mean the 'slot millis' counter? Arun On Jul 17, 2012, at 6:13 AM, GUOJUN Zhu wrote: running time at the task level. It can be significantly less th...
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Author: Arun C Murthy,
2012-07-17, 17:39
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Re: Mapper basic question - MapReduce - [mail # user]
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...Take a look at CombineFileInputFormat - this will create 'meta splits' which include multiple small spilts, thus reducing #maps which are run. Arun On Jul 11, 2012, at 5:29...
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Author: Arun C Murthy,
2012-07-11, 12:36
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[MAPREDUCE-725] CapacityScheduler.TaskSchedulingMgr.hasSpeculativeTask bypasses HADOOP-2141 - MapReduce - [issue]
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...CapacityScheduler.TaskSchedulingMgr.hasSpeculativeTask has a duplicate of the old speculation code (pre HADOOP-2141) which needs to be fixed in-order for speculation to work correctly....
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http://issues.apache.org/jira/browse/MAPREDUCE-725
Author: Arun C Murthy,
2012-07-10, 21:27
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[MAPREDUCE-4236] Failing tests in branch-2 - MapReduce - [issue]
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...Running org.apache.hadoop.mapreduce.v2.app.TestStagingCleanupTests run: 2, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 7.872 sec <<< FAILURE!–Running org.apache.hadoop.m...
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http://issues.apache.org/jira/browse/MAPREDUCE-4236
Author: Arun C Murthy,
2012-07-10, 21:11
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Re: Basic question on how reducer works - MapReduce - [mail # user]
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...On Jul 9, 2012, at 12:55 PM, Grandl Robert wrote: ReduceTask#getMapOutput which do the actual read in ReduceTask#shuffleInMemory, but I don't see where it specify which par...
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Author: Arun C Murthy,
2012-07-09, 20:33
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Re: Basic question on how reducer works - MapReduce - [mail # user]
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...Robert, On Jul 7, 2012, at 6:37 PM, Grandl Robert wrote: how many partitions to do(how many reducers will be) and how much data to go in each partition for each reduc...
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Author: Arun C Murthy,
2012-07-09, 13:24
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