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[expand - 3 more] - Re: No. of Map and reduce tasks - Hadoop - [mail # user]
...What if I had multiple files in input directory, hadoop should then fire parallel map jobs?   On Thu, May 26, 2011 at 7:21 PM, jagaran das  wrot e: doop . d? s...
   Author: Mohit Anchlia, 2011-05-31, 19:17
How to copy over using dfs - Hadoop - [mail # user]
...If I have to overwrite a file I generally use  hadoop dfs -rm  hadoop dfs -copyFromLocal or -put   Is there a command to overwrite/replace the file instead of doing rm first?...
   Author: Mohit Anchlia, 2011-05-27, 19:28
[expand - 1 more] - Re: Using own InputSplit - Hadoop - [mail # user]
...Actually this link confused me  http://hadoop.apache.org/common/docs/current/mapred_tutorial.html#Job+Input  "Clearly, logical splits based on input-size is insufficient for many a...
   Author: Mohit Anchlia, 2011-05-27, 17:14
[expand - 5 more] - Re: Help with pigsetup - Hadoop - [mail # user]
...I added all the jars in the classpath in HADOOP_HOME/lib and now I get to the grunt prompt. Will try the tutorials and see how it behaves :)  Thanks for your help!  On Thu, May 26,...
   Author: Mohit Anchlia, 2011-05-26, 19:01
[expand - 3 more] - Re: Processing xml files - Hadoop - [mail # user]
...On Tue, May 24, 2011 at 6:23 PM, Aleksandr Elbakyan  wr ote: o each other. hey were using spring batch. We use pig, streaming and hive to be stored in /mnt Currently our cluster is orga...
   Author: Mohit Anchlia, 2011-05-25, 16:41
Hadoop with -jvm when EUID 0 - Hadoop - [mail # user]
...Is there any specific reason for this logic in hadoop file under bin where it checks for EUID? Whenever I start-dfs.sh it goes in "-jvm server" if block and my jvm doesn't support that optio...
   Author: Mohit Anchlia, 2011-05-23, 21:31
Re: Installing Hadoop - Hadoop - [mail # user]
...Is hadoop going to format entire file sytem when I run bin/hadoop namenode -format?  For eg: I have mountpoint /data and there are other files in /data  But I created a directory h...
   Author: Mohit Anchlia, 2011-05-23, 18:15
[expand - 1 more] - Re: main" java.lang.UnsupportedClassVersionError: Bad version number in .class - Hadoop - [mail # user]
...It wasn't set. But it was set on the shell I was trying to startup the nodes. Is that different?  I set it in hadoop-env.sh and it worked! But don't understand why it has to be in there...
   Author: Mohit Anchlia, 2010-08-31, 19:57
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