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[MAPREDUCE-445] Web service interface to the JobTracker - MapReduce - [issue]
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...I think we need to provide a web services interface to submit and track jobs. This will simplify cross-version and non-Java access to JobTracker functionality....
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http://issues.apache.org/jira/browse/MAPREDUCE-445
Author: Owen O'Malley,
2012-07-10, 16:53
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[MAPREDUCE-78] tasks should not run on nodes where they were previously lost - MapReduce - [issue]
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...We had a case where a task tracker was getting lost every 15 minutes and the same reduce kept getting scheduled on it (15 times). Tasks that are killed should not reschedule on the node wher...
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http://issues.apache.org/jira/browse/MAPREDUCE-78
Author: Owen O'Malley,
2012-07-07, 17:33
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[MAPREDUCE-90] incrementing counters should not be used for triggering record skipping - MapReduce - [issue]
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...The following code is really problematic:public void incrCounter(String group, String counter, long amount) { if (counters != null) { counters.incrCounter(group,...
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http://issues.apache.org/jira/browse/MAPREDUCE-90
Author: Owen O'Malley,
2012-07-07, 16:16
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[MAPREDUCE-1462] Enable context-specific and stateful serializers in MapReduce - MapReduce - [issue]
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...Although the current serializer framework is powerful, within the context of a job it is limited to picking a single serializer for a given class. Additionally, Avro generic serialization ca...
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http://issues.apache.org/jira/browse/MAPREDUCE-1462
Author: Owen O'Malley,
2012-07-07, 12:56
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[MAPREDUCE-2364] Shouldn't hold lock on rjob while localizing resources. - MapReduce - [issue]
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...There is a deadlock while localizing resources on the TaskTracker....
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http://issues.apache.org/jira/browse/MAPREDUCE-2364
Author: Owen O'Malley,
2012-04-26, 22:24
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[MAPREDUCE-2600] MR-279: simplify the jars - MapReduce - [issue]
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...Currently the MR-279 mapreduce project generates 59 jars from 59 source roots, which can be dramatically simplified....
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http://issues.apache.org/jira/browse/MAPREDUCE-2600
Author: Owen O'Malley,
2012-04-14, 00:15
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Re: Reduce output is strange - MapReduce - [mail # dev]
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...On Tue, Apr 3, 2012 at 8:25 AM, Pedro Costa wrote: You use the SequenceFile.Reader class. You use the SequenceFile.Reader class. SequenceFile's always have "SEQ" fo...
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Author: Owen O'Malley,
2012-04-03, 15:29
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Re: Reduce output is strange - MapReduce - [mail # dev]
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...On Tue, Apr 3, 2012 at 8:01 AM, Pedro Costa wrote: hadoop fs -text myfile.seq Of course, if you are using API you can iterate through the two Sequence files and compare th...
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Author: Owen O'Malley,
2012-04-03, 15:26
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Re: [RESULT] - [VOTE] Rename hadoop branches post hadoop-1.x - MapReduce - [mail # dev]
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...On Wed, Mar 28, 2012 at 12:32 PM, Todd Lipcon wrote: But new features also go to trunk. And if none of our new features are Let's imagine that we already had a 2.0.0 releas...
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Author: Owen O'Malley,
2012-03-28, 19:39
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Re: [RESULT] - [VOTE] Rename hadoop branches post hadoop-1.x - MapReduce - [mail # dev]
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...I disagree. Trunk should become branch-3 once someone wants to start stabilizing it. Arun is going to need the minor versions for when he adds features. X.Y.Z Z = bug fixes Y = m...
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Author: Owen O'Malley,
2012-03-28, 19:25
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