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Fair Scheduler Performance issue. - MapReduce - [mail # user]
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...Hi Guys, We have using CDH4.0.1, we having quite monitoring with fair scheduler with not handle with more than one lakh mapper. Is the Bug or configuration tweaking please guide ...
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Author: Dhanasekaran Anbalagan,
2013-02-08, 09:26
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[Job tracker Start time] problem in jobtracker page - MapReduce - [mail # user]
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...Hi Guys, We have using CDH4.0.1, we have running running multiple jobs, We have look the job tracker page showing wrong Job tracker Start time same for all the running job. http:...
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Author: Dhanasekaran Anbalagan,
2013-02-07, 07:56
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How to find HDFS folders file count. - MapReduce - [mail # user]
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...Hi Guys, We have done moving local file to HDFS hadoop fs -copyFromLocal we have verified some of the file missing in the HDFS, We want validate source to destination. We h...
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Author: Dhanasekaran Anbalagan,
2013-02-06, 10:26
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Best way handle hadoop Java heap size space - MapReduce - [mail # user]
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...Hi Guys, We have configured many Heap size related thing. in Hadoop for ex. Namenode's Java Heap Size in bytes. Secondary namenode's Java Heap Size in bytes. Balancer's Java Heap...
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Author: Dhanasekaran Anbalagan,
2013-02-05, 17:04
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Re: HDFS Block location verification - MapReduce - [mail # user]
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...Hi Samir, Thanks so much. Exactly I want this. tech@dvcliftonhera150:~$ hadoop fsck -locations -blocks -files /user/tech/pkg.tar.gz DEPRECATED: Use of this script to execut...
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Author: Dhanasekaran Anbalagan,
2013-02-05, 15:36
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How to find Blacklisted Nodes via cli. - MapReduce - [mail # user]
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...Hi Guys, How to find Blacklisted Nodes via, command line. I want to see job Tracker Blacklisted Nodes and hdfs Blacklisted Nodes. and also how to clear blacklisted nodes to clear...
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Author: Dhanasekaran Anbalagan,
2013-01-30, 16:05
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jobTracker Blacklisted Nodes - MapReduce - [mail # user]
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...Hi Guys, Difference between Job tracker cluster level blacklisted nodes and job level blacklist node. In my case My jobtacker page says no Blacklisted nodes, When i open job link...
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Author: Dhanasekaran Anbalagan,
2013-01-28, 12:16
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Job Tracker & TaskTracker logs location Understaning - MapReduce - [mail # user]
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...Hi Guys, How to understand log location of job tracker and tasktracker logs location understanding. In jobTacker Logs root@dvcliftonhera122:/var/log# tree -d hadoop-0.20-mapreduc...
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Author: Dhanasekaran Anbalagan,
2013-01-28, 11:56
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Re: User History Location - MapReduce - [mail # user]
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...Hi Guys How to configure the mapreduce.job.userhistorylocation, I want store all jobtracker log to store to HDFS please guide me -Dhanasekaran On Monday,...
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Author: Dhanasekaran Anbalagan,
2013-01-22, 15:29
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Re: Fair Scheduler is not Fair why? - MapReduce - [mail # user]
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...HI Nan, We have not enabled Fair Scheduler Preemption. -Dhanasekaran. Did I learn something today? If not, I wasted it. On Wed, Jan 16, 2013 at 11:21 AM, Nan Zhu &nb...
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Author: Dhanasekaran Anbalagan,
2013-01-16, 16:32
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