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Re: Multiple directories for dfs.name.dir - HDFS - [mail # user]
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...Hi Nagarjuna Multiple dfs.name.dir is for more reliability so that you'll be having multiple copies of namespace image. Secondary name node does the checkpointing, ie merges the ...
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Author: Bejoy KS,
2012-11-17, 13:37
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Re: Map-Reduce V/S Hadoop Ecosystem - HDFS - [mail # user]
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...Hi Yogesh, The development time in Pig and hive are pretty less compared to its equivalent mapreduce code and for generic cases it is very efficient. If your requirement is that ...
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Author: Bejoy KS,
2012-11-07, 18:24
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Re: Hadoop counter - HDFS - [mail # user]
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...Thanks Harsh. Great learning from you as always. :) Regards Bejoy KS Sent from handheld, please excuse typos. From: Harsh J Date: Fri, 19 Oct 2012 21:20:07 To: ...
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Author: Bejoy KS,
2012-10-19, 15:58
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Re: NameNode fails - HDFS - [mail # user]
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...Hi Yogesh Please post in the error logs/messages if you find any. Regards Bejoy KS Sent from handheld, please excuse typos. From: Date: Fri, 20 Jul 2012 07:21:...
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Author: Bejoy KS,
2012-07-20, 07:26
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Re: NameNode fails - HDFS - [mail # user]
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...Hi Yogesh Is your dfs.name.dir pointing to /tmp dir? If so try changing that to any other dir . The contents of /tmp may get wiped out on OS restarts. Regards Bejoy KS Sent...
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Author: Bejoy KS,
2012-07-20, 06:33
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Re: Hadoop filesystem directories not visible - HDFS - [mail # user]
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...Hi Saniya In hdfs the directory exists only as meta data in the name node. There is no real hierarchical existence like normal file system. It is the data in the files that is st...
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Author: Bejoy KS,
2012-07-19, 09:52
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Re: HDFS Installation / Configuration - HDFS - [mail # user]
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...Hi Yuvrajsinh In hdfs the directory information exixts as metadata on the name node. The data is stored as hdfs blocks on datanodes. You can list the created dir/files in hdfs u...
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Author: Bejoy KS,
2012-07-17, 12:54
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Re: change hdfs block size for file existing on HDFS - HDFS - [mail # user]
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...Hi Anurag, The easiest option would be , in your map reduce job set the dfs.block.size to 128 mb From: Anurag Tangri To: [EMAIL PROTECTED] To: [EMAIL PROTECTED] ReplyTo: [EMAIL P...
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Author: Bejoy KS,
2012-06-26, 14:12
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Re: structured data split - HDFS - [mail # user]
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...Thanks Harsh !... 2011/11/11 Harsh J . he d t t c [EMAIL PROTECTED]>写道： ur by d t l.com> wrote: e...
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Author: Bejoy KS,
2011-11-11, 16:27
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Re: structured data split - HDFS - [mail # user]
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...Hi Donal I don't have much of an expose to the domain which you are pointing on to, but from a plain map reduce developer terms there would be my way of loo...
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Author: Bejoy KS,
2011-11-11, 15:10
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