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Re: HIVE+MAPREDUCE - MapReduce - [mail # user]
...Programming in Hive Text Book contains what u want . Chapter 4 Hope that will help u.   On Tue, Jan 21, 2014 at 1:51 PM, Ranjini Rathinam wrote:     *Thanks & Regards*  U...
   Author: unmesha sreeveni, 2014-01-21, 08:31
Merge files - MapReduce - [mail # user]
...How to merge two files using Map-Reduce code . I am aware of -getmerge and cat command.\  Thanks in advance.  *Thanks & Regards*  Unmesha Sreeveni U.B...
   Author: unmesha sreeveni, 2014-01-18, 04:29
Combination of MapReduce and Hive - MapReduce - [mail # user]
...Hi    Can we use a cobination of Hive and MapReduce Say: I am having a csv file. Ineed to find the mean of a column and replace the null data with the mean(replace null with mean) ...
   Author: unmesha sreeveni, 2014-01-17, 03:47
Re: Sorting a csv file - MapReduce - [mail # user]
...Thanks Ramya.s I was trying it to do with NULLWRITABLE..  Thanks alot Ramya.  And do u have any idea how to sort a given col. Say if user is giving col2 to sort the i want to get a...
   Author: unmesha sreeveni, 2014-01-16, 03:59
Re: Adding file to HDFs - MapReduce - [mail # user]
...Thank you sudhakar   On Tue, Jan 14, 2014 at 2:51 PM, sudhakara st wrote:     *Thanks & Regards*  Unmesha Sreeveni U.B Junior Developer  http://www.unmeshasreeveni.b...
   Author: unmesha sreeveni, 2014-01-14, 09:37
Seggregation in MapReduce - MapReduce - [mail # user]
...Can we do seggregation in MapReduce. If we are having a employee dataset which contains emp id,emp name,emp type.....  Are we able to group the employees based on different types. say e...
   Author: unmesha sreeveni, 2014-01-13, 07:06
[expand - 1 more] - Re: Find max and min of a column in a csvfile - MapReduce - [mail # user]
...Thanks Jiayu and John Hancock. Showered a very nice hint for me.  John that was a really gud link you provided. But i dnt know Pig. I am using java. Is there any java related  docu...
   Author: unmesha sreeveni, 2014-01-11, 15:04
what all can be done using MR - MapReduce - [mail # user]
...Can we do aggregation with in Hadoop MR like find min,max,sum,avg of a column in a csv file.  *Thanks & Regards*  Unmesha Sreeveni U.B Junior Developer  http://www.unmeshasree...
   Author: unmesha sreeveni, 2014-01-08, 07:41
FAILED EMFILE: Too many open files - MapReduce - [mail # user]
...While i am trying to run a MR Job I am getting " FAILED EMFILE: Too many open files "  at org.apache.hadoop.io.nativeio.NativeIO.open(Native Method) at org.apache.hadoop.io.SecureIOUtil...
   Author: unmesha sreeveni, 2014-01-07, 08:49
[expand - 1 more] - Re: Write an object into hadoop hdfs issue - MapReduce - [mail # user]
...Is there a way to store the same object?   On Mon, Dec 30, 2013 at 7:05 PM, Chris Mawata wrote:    *Thanks & Regards*  Unmesha Sreeveni U.B  *Junior Developer* http:...
   Author: unmesha sreeveni, 2013-12-31, 12:42
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB