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Re: Hadoop harddrive space usage - MapReduce - [mail # user]
...Perfect, thanks. It's what I was looking for.  I have few nodes, all with 2TB drives, but one with 2x1TB. Which mean that at the end, for Hadoop, it's almost the same thing.  JM &n...
   Author: Jean-Marc Spaggiari, 2012-12-30, 16:22
Re: Misconfiguration of hdfs-site.xml - MapReduce - [mail # user]
...Ok. If that's the case, then I can still re-configure the servers one by one manually and restart them. And moving to the next server only when the replication is completed.   Ok. That ...
2 emails [+ more]    Author: Jean-Marc Spaggiari, 2012-12-18, 20:53
Re: compile hadoop-1.1.1 on zLinux using apache maven - MapReduce - [mail # user]
...Hi,  Take a look here: I think you should be using and instead...  http://wiki.apache.org/hadoop/QwertyManiac/BuildingHadoopTrunk#Building_branch-1  JM...
2 emails [+ more]    Author: Jean-Marc Spaggiari, 2012-12-13, 12:53
Re: How to build Hadoop 1.0.3? - MapReduce - [mail # user]
...Thanks a lot! It's working very well!  2012/12/7, Harsh J :...
2 emails [+ more]    Author: Jean-Marc Spaggiari, 2012-12-08, 02:21
Re: Assigning reduce tasks to specific nodes - MapReduce - [mail # user]
...Hi Hiroyuki,  Have you made any progress on that?  I'm also looking at a way to assign specific Map tasks to specific nodes (I want the Map to run where the data is).  JM &nbs...
   Author: Jean-Marc Spaggiari, 2012-12-07, 19:51
Force task location on input split location? - MapReduce - [mail # user]
...Hi,  Is there a way for force the tasks from a MR job to run ONLY on the taskservers where the input split location is?  I mean, on the taskdetails UI, I can see all my tasks (25),...
   Author: Jean-Marc Spaggiari, 2012-12-07, 18:08
Re: CheckPoint Node - MapReduce - [mail # user]
...Sorry about that. My fault.  I have put this on the core-site.xml file but should be on the hdfs-site.xml...  I moved it and it's now working fine.  Thanks.  JM  201...
7 emails [+ more]    Author: Jean-Marc Spaggiari, 2012-12-01, 02:25
Diskspace usage - MapReduce - [mail # user]
...Hi,  Quick question on the way hadoop is using the disk space.  Let's say I have 8 nodes. 7 of them with a 2T disk, and one with a 256GB.  Is hadoop going to use the 256GB unt...
   Author: Jean-Marc Spaggiari, 2012-11-22, 20:11
Re: reducer not starting - MapReduce - [mail # user]
...Just FYI, you don't need to stop the job, update the host, and retry.  Just update the host while the job is running and it should retry and restart.  I had a similar issue with on...
   Author: Jean-Marc Spaggiari, 2012-11-21, 12:45
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