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Re: System ulimit for hadoop jobtracker node - MapReduce - [mail # user]
...Hi,  I have the ulimit of 999999, should be a problem? If yes what prob will arise? On Dec 18, 2013 12:05 AM, "rtejac"  wrote:  ...
   Author: Viswanathan J, 2013-12-18, 02:04
Hadoop MR Job failed in 2.2.0 version - MapReduce - [mail # user]
...Hi,  I'm trying to run the Hadoop MR job for lzo testing and getting below error,  Error: Found interface org.apache.hadoop.mapreduce.TaskAttemptContext, but class was expected &nb...
   Author: Viswanathan J, 2013-12-07, 04:59
Compression LZO class not found issue in Hadoop-2.2.0 - MapReduce - [mail # user]
...Hi Team,  Have added the property in mapred/core site xml and copied the hadoop lzo jar in hadoop lib folder. Also installed lzop,lzo-devel package in CentOS version.  Getting the ...
   Author: Viswanathan J, 2013-12-06, 18:02
Hadoop core jar class update - MapReduce - [mail # user]
...Hi guys,  If I update(very small change) the hadoop-core mapred class for one of the OOME patch and compiled the jar. If I deploy that jar in production will that cause any issue.  ...
   Author: Viswanathan J, 2013-10-23, 19:19
Re: Apache hadoop - 1.2.1 source compilation through Maven or ant - MapReduce - [mail # user]
...Hi Ted,  Yeah, I changed that and compiled with my naming convention.  Hope this version I can push into production. Just applying the JT OOME patch provided by Apache commiters. &...
   Author: Viswanathan J, 2013-10-20, 15:27
Re: Hadoop Jobtracker cluster summary of heap size and OOME - MapReduce - [mail # user]
...Hi Arun,  Will not cross post hereafter.  I had the same heap size value, same no.of jobs,scheduler and it is works fine in hadoop 1.0.4 version for 8 to 9 months, but I'm facing t...
   Author: Viswanathan J, 2013-10-15, 02:14
Re: Hadoop Jobtracker heap size calculation and OOME - MapReduce - [mail # user]
...Hi,  Not yet updated in production environment. Will keep you posted once it is done.  In which Apache hadoop release this issue will be fixed? Or this issue already fixed in hadoo...
   Author: Viswanathan J, 2013-10-15, 02:07
Re: Mapreduce jobtracker recover property - MapReduce - [mail # user]
...Hi Shahab,  Thanks for the detailed response.  So the new property will have the default value as true in the package?  Thanks, Viswa.J On Sep 24, 2013 8:33 AM, "Shahab Yunus"...
   Author: Viswanathan J, 2013-09-24, 05:29
Re: Hadoop Jobtracker OOME - MapReduce - [mail # user]
...Appreciate the response. On Sep 16, 2013 1:26 AM, "Viswanathan J"  wrote:  ...
   Author: Viswanathan J, 2013-09-16, 06:35
Disc not equally utilized in hdfs data nodes - MapReduce - [mail # user]
...Hi,  The data which are storing in data nodes are not equally utilized in all the data directories.  We having 4x1 TB drives, but huge data storing in single disc only at all the n...
   Author: Viswanathan J, 2013-09-05, 17:18
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