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Re: Question about Hadoop Default FCFS Job Scheduler - Hadoop - [mail # user]
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...OK, I got your point, you mean why don't we put the for loop into obtainNewLocalMapTask(), yes, I think we can do that, but the result is the same with current codes, and I don't...
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Author: Nan Zhu,
2011-01-17, 16:46
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Re: Question about Hadoop Default FCFS Job Scheduler - Hadoop - [mail # user]
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...Hi, Chen Actually not one task each time, see this statement: assignedTasks.add(t); assignedTasks is the return value of this method, and it's a collection of select...
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Author: Nan Zhu,
2011-01-17, 16:37
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Re: Question about Hadoop Default FCFS Job Scheduler - Hadoop - [mail # user]
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...Hi, Chen How is it going recently? Actually I think you misundertand the code in assignTasks() in JobQueueTaskScheduler.java, see the following structure of the interesting codes...
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Author: Nan Zhu,
2011-01-17, 14:28
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Why Hadoop uses HTTP for file transmission between Map and Reduce? - Hadoop - [mail # user]
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...Hi, all I have a question about the file transmission between Map and Reduce stage, in current implementation, the Reducers get the results generated by Mappers through HTTP Get, I don...
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Author: Nan Zhu,
2011-01-13, 08:27
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Re: How to simulate network delay on 1 node - Hadoop - [mail # user]
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...If you're studying how the hadoop make the copies of the blocks, I'm not familiar with HDFS, so I have no idea about it If you're studying the data transfer between the Map and Reduce,...
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Author: Nan Zhu,
2010-12-26, 13:07
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Re: How to simulate network delay on 1 node - Hadoop - [mail # user]
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...Why would you like to *simulate* network delay? I haven't got your point, Bests, Nan On Sun, Dec 26, 2010 at 8:25 PM, yipeng wrote: ...
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Author: Nan Zhu,
2010-12-26, 12:31
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gridmix2 gives an classnotfound error? - Hadoop - [mail # user]
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...Hi, all I'm attempting to invoke the gridmix2 benchmark on hadoop-0.20.2, I have modify the environment variables in the scripts accordingly, but after I typed "sh rungridmix_2" , the ...
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Author: Nan Zhu,
2010-11-08, 22:01
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Re: Configure hadoop in eclipse - Hadoop - [mail # dev]
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...attachment missed? Nan On Thu, Nov 4, 2010 at 11:35 PM, Rafael Braga wrote: ...
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Author: Nan Zhu,
2010-11-04, 16:00
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Re: ivy failed to resolve dependencies? - Hadoop - [mail # user]
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...I see... Thank you very much, Steve Nan On Wed, Nov 3, 2010 at 1:08 AM, Steve Loughran wrote: ...
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Author: Nan Zhu,
2010-11-02, 23:06
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Re: ivy failed to resolve dependencies? - Hadoop - [mail # user]
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...Hi, Steve I haven't added jms and jmxtools, but I added a jxl library to generate some statistical result with excel format, but it seems not to be the reason, because I have worked wi...
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Author: Nan Zhu,
2010-11-02, 14:47
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