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Re: About Hadoop Deb file - MapReduce - [mail # user]
...Hi Mayur,  Where have you downloaded the DEB files? Are they Debian related? Or Unbuntu related? Unbuntu is not worst than CentOS. They are just different choices. Both should work. &nb...
   Author: Jean-Marc Spaggiari, 2013-02-21, 21:31
Re: copy chunk of hadoop output - MapReduce - [mail # user]
...Hi Harsh,  My bad.  I read the example quickly and I don't know why I tought you used tail and not head.  head will work perfectly. But tail will not since it will need to rea...
   Author: Jean-Marc Spaggiari, 2013-02-20, 19:44
Re: In Compatible clusterIDs - MapReduce - [mail # user]
...Hi Nagarjuna,  Is it a test cluster? Do you have another cluster running close-by? Also, is it your first try?  It seems there is some previous data in the dfs directory which is n...
   Author: Jean-Marc Spaggiari, 2013-02-20, 15:40
Re: Mutiple dfs.data.dir vs RAID0 - MapReduce - [mail # user]
...@Michael: I have done some tests between RAID0, 1, JBOD and LVM on another server.  Results are there: http://www.spaggiari.org/index.php/hbase/hard-drives-performances LVM and JBOD wer...
   Author: Jean-Marc Spaggiari, 2013-02-11, 02:38
Re: How to installl FUSE with Hadoop 1.0.x? - MapReduce - [mail # user]
...Hi Harsh,  I have installed all the dependencies, but I'm trying to build the amd64 version, and I think it's not working because there is some hardcoded parameters for 32 bits.  h...
   Author: Jean-Marc Spaggiari, 2013-02-08, 17:17
How to installl FUSE with Hadoop 1.0.x? - MapReduce - [mail # user]
...Hi,  I'm wondering what's the best way to install FUSE with Hadoop 1.0.3?  I'm trying to follow all the steps described here: http://wiki.apache.org/hadoop/MountableHDFS but it's f...
   Author: Jean-Marc Spaggiari, 2013-02-08, 16:30
Re: Hadoop + Fuse: Compilation errors - MapReduce - [mail # user]
...Replying to myself ;)  I found the issue, I'm posting here in case it can help someone else.  To solve that you need to install libtool.  http://mail-archives.apache.org/mod_m...
   Author: Jean-Marc Spaggiari, 2013-02-08, 14:52
Hadoop + Fuse: Compilation errors - MapReduce - [mail # user]
...Hi,  I'm trying to install FUSE with Hadoop 1.0.3 and I'm facing some issues.  I'm following the steps I have there: http://wiki.apache.org/hadoop/MountableHDFS  I have extrac...
   Author: Jean-Marc Spaggiari, 2013-02-08, 14:23
Re: Maximum Storage size in a Single datanode - MapReduce - [mail # user]
...Hi,  Also, think about the memory you will need in your DataNode to serve all this data... I'm not sure there is any server which can take that today. You need a certain amount of memor...
   Author: Jean-Marc Spaggiari, 2013-01-30, 12:21
Re: reg max map task config - MapReduce - [mail # user]
...Hi Harsh,  Is there a recommanded way to configure this value? I think I read something like 0.7 x cores but I'm not 100% sure...  JM  2013/1/28, Manoj Babu :...
   Author: Jean-Marc Spaggiari, 2013-01-28, 12:34
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