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Re: fresher in hadoop - MapReduce - [mail # user]
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...The best way is to first learn the concepts thoroughly and then if you like you can also contribute to Hadoop projects. After than prolly it is better to find some BigData based projects. &n...
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Author: Mahesh Balija,
2013-02-11, 05:19
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Re: How to copy log files from remote windows machine to Hadoop cluster - MapReduce - [mail # user]
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...Hi Mirko, Thanks for your reply. It works for me as well. Now I was able to mount the folder on the master ...
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Author: Mahesh Balija,
2013-01-21, 05:17
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How to copy log files from remote windows machine to Hadoop cluster - MapReduce - [mail # user]
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...Hi, My log files are generated and saved in a windows machine. Now I have to move those remote files to the Hadoop cluster (HDFS) either in sy...
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Author: Mahesh Balija,
2013-01-17, 10:03
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Re: Binary Search in map reduce - MapReduce - [mail # user]
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...Hi Jamal, Another simple approach if your data is too huge and cannot fit into memory would be just to use the MultipleInputs mechanism. &nbs...
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Author: Mahesh Balija,
2013-01-08, 03:26
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Re: Differences between 'mapped' and 'mapreduce' packages - MapReduce - [mail # user]
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...Hi Oleg, Mapreduce 0.20.* api has the support for both 0.19 api (which is MapRed package in which your mapper should extend MRBase and implements Mapper) a...
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Author: Mahesh Balija,
2013-01-08, 03:07
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Re: running Combiner for all the task on the node. - MapReduce - [mail # dev]
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...Hi Suresh, I mean, in current approach combine phase will occur per mapper instance only, but NOT per node. ...
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Author: Mahesh Balija,
2013-01-02, 14:06
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Re: running Combiner for all the task on the node. - MapReduce - [mail # dev]
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...Continued, Also one more shuffle and sort phase should occur so that you can merge/combine them properly. So you should decide whether additional shuffle and sort phase will be overhea...
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Author: Mahesh Balija,
2013-01-02, 12:50
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Re: running Combiner for all the task on the node. - MapReduce - [mail # dev]
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...Hi Suresh, The combiner function will aggregate the data from a single map instance. But NOT for all the maps running in a given node....
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Author: Mahesh Balija,
2013-01-02, 12:44
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Re: Query about Speculative Execution - MapReduce - [mail # user]
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...To simply, if you turn-off the speculative execution then the system will never bother about slow running jobs unless they won't report beyond specified time (10 minutes). If you have set sp...
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Author: Mahesh Balija,
2012-12-07, 02:12
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Re: MapReduce APIs - MapReduce - [mail # user]
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...Hi AK, I don't really understand what is stopping you to use the job.getConfiguration() method to pass the configuration instance to DistributedCache...
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Author: Mahesh Balija,
2012-11-27, 05:22
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