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Re: How to write the contents from mapper into file - MapReduce - [mail # user]
...[solved] It is due to permission issue.   On Wed, Nov 13, 2013 at 11:27 PM, Rahul Bhattacharjee  wrote:    *Thanks & Regards*  Unmesha Sreeveni U.B  *Junior Dev...
   Author: unmesha sreeveni, 2013-11-15, 09:32
Re: Java Heap space Exception - MapReduce - [mail # user]
...hadoop jar /home/my/hadoop2.jar /user/unmesha/inputdata /user/unmesha/out    On Fri, Nov 15, 2013 at 2:53 PM, unmesha sreeveni wrote:    *Thanks & Regards*  Unmesha ...
   Author: unmesha sreeveni, 2013-11-15, 09:31
Re: LeaseExpiredException : Lease mismatch in Hadoop mapReduce| How to solve? - MapReduce - [mail # user]
...@chandu banavaram: This exception usually happens if hdfs is trying to write into a file which is no more in hdfs..  I think in my case certain files are not created in my hdfs.it faile...
   Author: unmesha sreeveni, 2013-11-15, 06:18
Re: Why SSH - MapReduce - [mail # user]
...I guess it is  TCP .  The server is DataXceiverServer and the client is DFSClient. Basiclly, they use the Java Socket API.  DataXceiverServer http://www.grepcode.com/file/repo...
   Author: unmesha sreeveni, 2013-11-11, 08:33
[expand - 1 more] - Re: Mapper input as argument - MapReduce - [mail # user]
...one more doubt : how to copy each input split entering into mapper into a file for computation?   On Thu, Nov 7, 2013 at 10:35 AM, unmesha sreeveni wrote:    *Thanks & Regards...
   Author: unmesha sreeveni, 2013-11-07, 06:05
[expand - 1 more] - Re: which is better : form reducer or Driver - MapReduce - [mail # user]
...ok i will check them in both ways :)   On Wed, Nov 6, 2013 at 2:10 PM, Chris Mawata  wrote:    *Thanks & Regards*  Unmesha Sreeveni U.B  *Junior Developer* &nbs...
   Author: unmesha sreeveni, 2013-11-06, 09:13
Re: how to read the xml tags data - MapReduce - [mail # user]
...here is what u want https://github.com/studhadoop/xmlparsing-hadoop/blob/master/XmlParser11.java  this is what i did. You can modify the code according to your intension.  Happy co...
   Author: unmesha sreeveni, 2013-11-06, 07:29
[expand - 3 more] - Re: CompateTo() in WritableComparable - MapReduce - [mail # user]
...ie key ----->  A*Atrans--------->after multiplication the result will be a 2D array which is declared as double (matrix) lets say the result be Matrix "Ekey"(double[][] Ekey) &nbs...
   Author: unmesha sreeveni, 2013-11-05, 04:02
[expand - 1 more] - Re: Implementing a custom hadoop key and value - need Help - MapReduce - [mail # user]
...yes .By editing some of my code..... i am able to get my emitted matrix VALUE in reducer :) :) :) :). context.write(......, new MatrixWritable(Eval));  But i am confused , HOW TO EMIT A...
   Author: unmesha sreeveni, 2013-11-04, 08:54
Empty value in write() method : Custom Datatype in Hadoop MapReduce - MapReduce - [mail # user]
...I am emiting two 2D double array as key and value.I am in construction of my WritableComparable class.   *public class MF implements WritableComparable{ /**  * @param args  */...
   Author: unmesha sreeveni, 2013-10-30, 05:53
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