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Re: reducer gets values with empty attributes - MapReduce - [mail # user]
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...Hi Alex, Can you please attach your code? and the sample input data. Best, Mahesh Balija, Calsoft Labs. On Tue, Apr 30, 2013 at ...
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Author: Mahesh Balija,
2013-04-30, 06:33
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Re: Writing data from HDFS to Tpae - MapReduce - [mail # user]
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...Can you do the following, hadoop fs -copyToLocal Best, Mahesh Balija, CalsoftLabs. On Wed, Apr 24, 2013 at 12:12 PM, G, Prashanthi wrote: ...
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Author: Mahesh Balija,
2013-04-26, 06:55
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Re: R environment with Hadoop - MapReduce - [mail # user]
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...Mahout is an alternative for R, if you are NOT aware of. Thanks, Mahesh Balija, CalsoftLabs. On Thu, Apr 11, 2013 at 12:25 AM, Ted Yu wrote: ...
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Author: Mahesh Balija,
2013-04-10, 21:21
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Re: Hadoop file system - MapReduce - [mail # user]
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...You can be able to use Hdfs alone in the distributed mode to fulfill your requirement. Hdfs has the Filesystem java api through which you can interact with the HDFS from your client. HDFS is...
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Author: Mahesh Balija,
2013-03-05, 08:44
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Re: mapper combiner and partitioner for particular dataset - MapReduce - [mail # user]
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...What Harsh means by that is, you should create a custom partitioner which should take care of partitioning the records based on the input record data (Key, Value). i.e., if you have multiple...
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Author: Mahesh Balija,
2013-03-05, 08:05
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Re: Running terasort with 1 map task - MapReduce - [mail # user]
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...does passing the dfs.block.size=134217728 resolves your issue? or is it something else fixed your problem? On Tue, Feb 26, 2013 at 6:04 PM, Arindam Choudhury wrote: ...
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Author: Mahesh Balija,
2013-02-26, 23:07
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Re: WordPairCount Mapreduce question. - MapReduce - [mail # user]
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...byte array comparison is for performance reasons only, but NOT the way you are thinking. This method comes from an interface called RawComparator which provides the prototype (public int com...
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Author: Mahesh Balija,
2013-02-25, 08:14
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Re: WordPairCount Mapreduce question. - MapReduce - [mail # user]
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...Please check the in-line answers... On Sat, Feb 23, 2013 at 6:22 PM, Sai Sai wrote: This is how usually hashcode is calculated for any String instance (s[0]*31^(n-1) + s[1]...
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Author: Mahesh Balija,
2013-02-23, 13:23
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Re: How To Load Data Between two cluster - MapReduce - [mail # user]
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...Hi Samir, One solution for your Case 1 can be, 1) First you export your...
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Author: Mahesh Balija,
2013-02-22, 08:06
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Re: number input files to mapreduce job - MapReduce - [mail # user]
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...Hi Vikas, You can get the FileSystem instance by calling FileSystem.get(Configuration); &nbs...
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Author: Mahesh Balija,
2013-02-12, 09:17
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