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Re: Name node and data node replacement - MapReduce - [mail # user]
...Yes you are right. It will periodically checks the under replicated blocks information and place those blocks on available data nodes if required.  Regards Jitendra   On Wed, Dec 1...
   Author: Jitendra Yadav, 2013-12-11, 08:40
Re: Strange error on Datanodes - MapReduce - [mail # user]
...Use below parameter in mapred-site.xml   mapred.task.timeout 1800000   Thanks    On Tue, Dec 3, 2013 at 8:16 PM, Siddharth Tiwari wrote:  ...
   Author: Jitendra Yadav, 2013-12-03, 15:19
Re: auto-failover does not work - MapReduce - [mail # user]
...If you are using hadoop user and you have correct ssh conf  then below commands should works without password.  Execute from NN2 & NN1 # ssh hadoop@NN1_host  &  Execute f...
   Author: Jitendra Yadav, 2013-12-02, 12:47
Re: Working with Capacity Scheduler - MapReduce - [mail # user]
...Try this.  - hadoop queue -showacls  - hadoop queue -list  Regards Jitendra   On Tue, Nov 26, 2013 at 6:58 PM, Munna  wrote:  ...
   Author: Jitendra Yadav, 2013-11-26, 13:37
Re: how to schedule the hadoop commands in cron job or any orther way? - MapReduce - [mail # user]
...Hi,  If you have few and simpler hadoop jobs like for data ingestion or manipulation etc. then you can easily manage it through some shell script and put it in crontab. But in case you ...
   Author: Jitendra Yadav, 2013-11-07, 12:44
Re: Error putting files in the HDFS - MapReduce - [mail # user]
...Yes  Thanks Jitendra On 10/8/13, Basu,Indrashish  wrote:...
   Author: Jitendra Yadav, 2013-10-08, 18:26
Re: Migrating from Legacy to Hadoop. - MapReduce - [mail # user]
...Hi Bertrand,  Thanks for your reply.  As per my understanding mentioned open source does not support procedure language(PL) flexibility. Right?  I was looking for some other a...
   Author: Jitendra Yadav, 2013-10-08, 17:07
Re: Secondary NameNode doCheckpoint Exception - MapReduce - [mail # user]
...When you said "started from java" does that means you are doing some development work using eclipse and hadoop?  May be I'm not familiar with this kind of environment.  Regards Jit...
   Author: Jitendra Yadav, 2013-10-03, 10:06
Re: Hadoop Solaris OS compatibility - MapReduce - [mail # user]
...Thanks Roman,  I will keep in touch with you.  However we have faced lots of issues on Solaris Sparc OS but mostly are with hadoop 2.x.x version  Regards Jitendra   On Th...
   Author: Jitendra Yadav, 2013-10-03, 09:15
Re: Uploading a file to HDFS - MapReduce - [mail # user]
...Case 2:  While selecting target DN in case of write operations, NN will always prefers first DN as same DN from where client  sending the data, in some cases NN ignore that DN when...
   Author: Jitendra Yadav, 2013-09-26, 11:25
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