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Re: how to read map_0.out - MapReduce - [mail # user]
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...The intermediate files are called IFiles. The format is trivial and you can read the code to see it. The only tricky bit is that you effectively have N IFiles concatenated together (one per ...
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Author: Owen O'Malley,
2011-01-10, 17:26
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[MAPREDUCE-1515] need to pass down java5 and forrest home variables - MapReduce - [issue]
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...Currently, the build script doesn't pass down the variables for java5 and forrest, so the build breaks unless they are on the command line....
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http://issues.apache.org/jira/browse/MAPREDUCE-1515
Author: Owen O'Malley,
2010-12-27, 20:08
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Re: Where ask questions about MapReduce source code? - MapReduce - [mail # dev]
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...On Wed, Dec 22, 2010 at 3:29 PM, Pedro Costa wrote: Yes....
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Author: Owen O'Malley,
2010-12-23, 05:10
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Re: Global Sorting and Multiple Reducers ? - MapReduce - [mail # user]
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...At those data sizes, I'd make sure that you have very few maps and reduces. Look at the input format that blends multiple files together. If you have multiple reduces, you need the tot...
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Author: Owen O'Malley,
2010-11-12, 18:15
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Re: Trunk build failing with ivy errors - MapReduce - [mail # dev]
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...On Wed, Nov 10, 2010 at 3:48 PM, Todd Lipcon wrote: I think that sounds reasonable. ...
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Author: Owen O'Malley,
2010-11-11, 00:03
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Re: Predicting how many values will I see in a call to reduce? - MapReduce - [mail # user]
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...On Sun, Nov 7, 2010 at 5:38 AM, Anthony Urso wrote: No, there currently isn't. The framework doesn't have the information until the iterator is exhausted. The iterator is ...
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Author: Owen O'Malley,
2010-11-09, 16:28
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Re: Initialize Map class - MapReduce - [mail # user]
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...On Oct 17, 2010, at 11:31 AM, web service wrote: The objects that define a MapReduce job are all configured by the job's configuration, which is a string to string map. If your...
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Author: Owen O'Malley,
2010-10-17, 18:38
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Re: hadoop.job.ugi backwards compatibility - MapReduce - [mail # dev]
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...On Sep 13, 2010, at 4:23 PM, Todd Lipcon wrote: My problem is three fold: 1. It isn't one or two spots. It is a *lot* of spots. Doing it inconsistently would be fa...
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Author: Owen O'Malley,
2010-09-14, 14:32
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Re: hadoop.job.ugi backwards compatibility - MapReduce - [mail # dev]
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...On Mon, Sep 13, 2010 at 11:10 AM, Todd Lipcon wrote: 10 node clusters are an important use case, but creating the user accounts on those clusters is very easy because of the few ...
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Author: Owen O'Malley,
2010-09-13, 20:04
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Re: hadoop.job.ugi backwards compatibility - MapReduce - [mail # dev]
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...On Mon, Sep 13, 2010 at 10:05 AM, Todd Lipcon wrote: Yeah, after I hit send, I realized that I should have used common-dev. This is really a dev issue. Sure, which is why...
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Author: Owen O'Malley,
2010-09-13, 17:59
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