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Re: Error while running a command - MapReduce - [mail # user]
...can you check this http://www.params.me/2012/11/failed-to-load-class.html  if you are hitting the same issue   On Mon, May 27, 2013 at 4:02 PM, Aditya exalter wrote:     ...
   Author: Nitin Pawar, 2013-05-27, 11:46
[expand - 2 more] - Re: Read namenode data from primary memory - MapReduce - [mail # user]
...if you want to use savenamespace then yes.  Normally to have a backup copy of the FSImage, previously there was a secondary namenode and now there is checkpoint NN. SNN was deprecated b...
   Author: Nitin Pawar, 2013-05-14, 07:43
Re: Install Hadoop on Linux Pseudo Distributed Mode - Root Required? - MapReduce - [mail # user]
...You do not root if you want to install everything in your home directory and assuming sun jdk is installed On May 13, 2013 8:13 PM, "Raj Hadoop"  wrote:  ...
   Author: Nitin Pawar, 2013-05-13, 14:47
[expand - 2 more] - Re: The minimum memory requirements to datanode and namenode? - MapReduce - [mail # user]
...4GB memory on NN? this will run out of memory in few days.  You will need to make sure your NN has atleast more than double RAM of your DNs if you have a miniature  cluster.  ...
   Author: Nitin Pawar, 2013-05-13, 06:53
Re: Submitting a hadoop job in large clusters. - MapReduce - [mail # user]
...nope in MRv1 only jobtracker can accept jobs. You can not trigger job on any other process in hadoop other than jobtracker.   On Sun, May 12, 2013 at 11:25 PM, Shashidhar Rao <[EMAIL...
   Author: Nitin Pawar, 2013-05-12, 17:56
[expand - 1 more] - Re: Problem while running simple WordCount program(hadoop-1.0.4) on eclipse. - MapReduce - [mail # user]
...its a /tmp/ folder so I guess all the users will need access to it. better it make it a routine linux like /tmp folder   On Sun, May 12, 2013 at 11:12 PM, shashwat shriparv  wrote:...
   Author: Nitin Pawar, 2013-05-12, 17:46
[expand - 2 more] - Re: Hadoop noob question - MapReduce - [mail # user]
...you can do that using file:///  example:  hadoop distcp hdfs://localhost:8020/somefile file:///Users/myhome/Desktop/    On Sun, May 12, 2013 at 5:23 PM, Rahul Bhattacharj...
   Author: Nitin Pawar, 2013-05-12, 12:06
Re: Namenode going to safe mode on YARN - MapReduce - [mail # user]
...If you are running a single node and you have not changed the hdfs configuration for repliaction then he default is set to 3 and you will just have one available.  As long as this is no...
   Author: Nitin Pawar, 2013-05-06, 12:03
Re: pseudo distributed mode - MapReduce - [mail # user]
...once you format the namenode, it will need to started again for the normal purpose usage   On Fri, May 3, 2013 at 12:45 PM, mouna laroussi wrote:     Nitin Pawar...
   Author: Nitin Pawar, 2013-05-03, 16:59
[expand - 3 more] - Re: Set reducer capacity for a specific M/R job - MapReduce - [mail # user]
...I don't think you can control how many reducers can run parallely via framework.  Other way to do this is increase the memory given to individual reducer so that the tasktracker will be...
   Author: Nitin Pawar, 2013-04-30, 10:45
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