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Security design document - MapReduce - [mail # dev]
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...All, As I've mentioned in my talks at Hadoop World and ApacheCon US, we are working on putting security into Hadoop. Our goal is to have it done in February 2010....
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Author: Owen O'Malley,
2009-12-18, 22:17
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Re: Ideas for dynamic change reducer task number ? - MapReduce - [mail # dev]
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...On Nov 22, 2009, at 4:48 PM, Jeff Zhang wrote: You misunderstand. I meant doing something like: public class MyInputFormat .... public InputSplit[] getSplits(JobCo...
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Author: Owen O'Malley,
2009-11-23, 17:19
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Re: Ideas for dynamic change reducer task number ? - MapReduce - [mail # dev]
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...I'd suggest trying to do conf.setNumReduceTasks on the configuration passed to the InputFormat in getSplits. It will probably just work. ...
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Author: Owen O'Malley,
2009-11-22, 19:10
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[MAPREDUCE-103] The TaskTracker's shell environment should not be passed to the children. - MapReduce - [issue]
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...HADOOP-2838 and HADOOP-5981 added support to make the TaskTracker's shell environment available to the tasks. This has two problems: 1. It makes the task tracker's environment par...
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http://issues.apache.org/jira/browse/MAPREDUCE-103
Author: Owen O'Malley,
2009-11-11, 09:23
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Post-5107 cross-project commits - MapReduce - [mail # dev]
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...I've committed HADOOP-5107 to Common and HDFS. MapReduce will follow soon. There are a couple of things that change: 1. The non-release version names move to the Maven-fri...
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Author: Owen O'Malley,
2009-10-30, 23:59
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Re: DefaultCodec vs. LZO - MapReduce - [mail # user]
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...On Oct 23, 2009, at 1:56 PM, Jeff Hammerbacher wrote: Could Todd submit the packaging stuff as a patch to http://code.google.com/p/hadoop-gpl-compression/ rather than havi...
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Author: Owen O'Malley,
2009-10-23, 21:10
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Re: DefaultCodec vs. LZO - MapReduce - [mail # user]
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...On Oct 23, 2009, at 12:43 PM, Zheng Shao wrote: The compression is less with LZO, but the speed is much higher. For the shuffle, LZO is a better default. For final outputs, the...
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Author: Owen O'Malley,
2009-10-23, 21:07
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[MAPREDUCE-563] Security features for Map/Reduce - MapReduce - [issue]
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...This is a top-level tracking JIRA for security work we are doing in Map/reduce. Please add reference to this when opening new security related JIRAs.Logically a subpiece of HADOOP-4487....
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http://issues.apache.org/jira/browse/MAPREDUCE-563
Author: Owen O'Malley,
2009-10-06, 19:17
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Welcome Konstantin Boudnik as a qa committer! - MapReduce - [mail # dev]
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...The Hadoop PMC has voted to make Cos a QA committer on Common, HDFS, and MapReduce. I'd like to welcome Cos as the newest committer. ...
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Author: Owen O'Malley,
2009-10-05, 23:06
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Re: [VOTE] Commit MAPREDUCE-728 to Hadoop 0.21 - MapReduce - [mail # dev]
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...On Sep 18, 2009, at 10:24 PM, Hong Tang wrote: Mumak has already found a couple bugs in map/reduce and promises to find more. I think this is a good low-risk addition to 0.21. ...
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Author: Owen O'Malley,
2009-09-21, 17:23
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