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Re: Map works well, but Redue failed - Hadoop - [mail # user]
...Most probably you have a network problem. Check your hostname and IP addres s mapping    ng  rsday, June 14, 2012 10:15 AM  ror like below. ng task outputServer /192.168....
   Author: Raj Vishwanathan, 2012-06-16, 01:42
Re: Map/Reduce Tasks Fails - Hadoop - [mail # user]
...Sandeep  How many network interfaces? Are the network shared between iS CSI and M/R communications?  Is this the top when the system is idle or  when you are getting  errors? ...
   Author: Raj Vishwanathan, 2012-05-22, 17:49
Re: High load on datanode startup - Hadoop - [mail # user]
...Darrell  Are the new dn,nn and mapred directories on the same physical  disk? Nothing on NFS , correct?  Could you be having some hardware issu e? Any clue in /var/log/message...
   Author: Raj Vishwanathan, 2012-05-10, 16:58
Re: Reduce Hangs at 66% - Hadoop - [mail # user]
...Keith  What is the the output for ulimit -n? Your value for number of o pen files is probably too low.  Raj     ____________ [EMAIL PROTECTED]  t: Re: Reduce Hangs a...
   Author: Raj Vishwanathan, 2012-05-04, 00:03
Re: hadoop streaming and a directory containing large number of .tgz files - Hadoop - [mail # user]
...Sunil  You could use identity mappers, a single identity reducer and by  not having output compression.,  Raj    ___________  f .tgz files t actually got mbersh...
   Author: Raj Vishwanathan, 2012-04-24, 14:29
Re: Hive Thrift help - Hadoop - [mail # user]
...To a verify that a server is running on a port ( 10,000 in this case ) and  to ensure that there are no firewall issues run  telnet servername 10 000  The connection should succeed...
   Author: Raj Vishwanathan, 2012-04-16, 22:13
Re: Is TeraGen's generated data deterministic? - Hadoop - [mail # user]
...David  Since the data generation and sorting is different hadoop jobs,  you can generate the data once and sort the same data as many times as as y ou want.  I don't think Ter...
   Author: Raj Vishwanathan, 2012-04-14, 21:15
Re: Map Reduce Job Help - Hadoop - [mail # user]
...http://www.michael-noll.com/tutorials/writing-an-hadoop-mapreduce-program-i n-python/      ooperator  nt: Wednesday, April 11, 2012 11:15 AM  p Reduce jobs.  I was hat al...
   Author: Raj Vishwanathan, 2012-04-11, 18:22
Analysing Hadoop log files offline. - Hadoop - [mail # user]
...Please take a look at   https://github.com/rajvish/hadoop-summary     These scripts enable you to take a hadoop job logs and can provide  both a summary information or de...
   Author: Raj Vishwanathan, 2012-04-05, 18:24
Re: opensuse 12.1 - Hadoop - [mail # user]
...Lots of people seem to start with this.  http://www.michael-noll.com/tu torials/running-hadoop-on-ubuntu-linux-multi-node-cluster/    Raj     [EMAIL PROTECTED]> adoop....
   Author: Raj Vishwanathan, 2012-04-04, 16:24
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