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Re: Finding mean and median python streaming - Hadoop - [mail # user]
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...Because each Reducer is just the local mean and median of the data which are shuffled to that Reducer. 2013/4/5 jamal sasha ...
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Author: Yanbo Liang,
2013-04-06, 11:58
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Re: Provide context to map function - Hadoop - [mail # user]
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...protected void map(KEYIN key, VALUEIN value, Context context) throws IOException, InterruptedException { &n...
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Author: Yanbo Liang,
2013-04-02, 07:48
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Re: - Hadoop - [mail # user]
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...You can get detail information from the Greenplum website: http://www.greenplum.com/products/pivotal-hd 2013/3/28 oualid ait wafli ...
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Author: Yanbo Liang,
2013-03-28, 15:24
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Re: FSEditLog won't log the change if one file size is changed? - Hadoop - [mail # user]
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...The metadata did not include file size, so if client ask file size to the DataNode which stored the last block. 2013/1/17 Zheng Yong ...
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Author: Yanbo Liang,
2013-01-18, 10:03
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Re: which part of Hadoop is responsible of distributing the input file fragments to datanodes? - Hadoop - [mail # dev]
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...I guess you means to set your own strategy of block distribution. If this, just hack the code as following clue: FSNamesystem.getAdditionalBlock() ---> BlockManager.chooseTarget() -...
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Author: Yanbo Liang,
2012-11-15, 08:13
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Re: Unable to build Hadoop from source - Hadoop - [mail # dev]
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...It means that there are one failure test case in your build. You can go to hadoop-common-project/hadoop-common/target/surefile-report/ directory to check to output and log in order to find t...
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Author: Yanbo Liang,
2012-09-29, 09:22
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10 failures when run test on hadoop-common-project - Hadoop - [mail # dev]
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...Hi All, I just run the test code of hadoop-common-project with revision 1364560. It produced 10 FAILURES after I typed "mvn test" under the folder of "hadoop-common-project". But the l...
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Author: Yanbo Liang,
2012-07-23, 10:50
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