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Re: Multiple directories for dfs.name.dir - HDFS - [mail # user]
...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 ...
   Author: Bejoy KS, 2012-11-17, 13:37
Re: Map-Reduce V/S Hadoop Ecosystem - HDFS - [mail # user]
...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 ...
   Author: Bejoy KS, 2012-11-07, 18:24
Re: Hadoop counter - HDFS - [mail # user]
...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: ...
   Author: Bejoy KS, 2012-10-19, 15:58
Re: NameNode fails - HDFS - [mail # user]
...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:...
   Author: Bejoy KS, 2012-07-20, 07:26
Re: Hadoop filesystem directories not visible - HDFS - [mail # user]
...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...
   Author: Bejoy KS, 2012-07-19, 09:52
Re: HDFS Installation / Configuration - HDFS - [mail # user]
...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...
   Author: Bejoy KS, 2012-07-17, 12:54
Re: change hdfs block size for file existing on HDFS - HDFS - [mail # user]
...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...
   Author: Bejoy KS, 2012-06-26, 14:12
Re: structured data split - HDFS - [mail # user]
...Thanks Harsh !...  2011/11/11 Harsh J    . he d t t c [EMAIL PROTECTED]>写道: ur by d t l.com> wrote: e...
   Author: Bejoy KS, 2011-11-11, 16:27
Re: Basic question on HDFS - MR - HDFS - [mail # user]
...Hi Stuti         You don't need anything manually to do the distribution of your jar across Task Trackers(DN). You place your jar in some dir in LFS specify your jar path...
   Author: Bejoy KS, 2011-10-18, 11:17
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