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Task Killed but no errors - Hadoop - [mail # user]
...I submitted a map reduce job that had 9 tasks killed out of 139. But I don't see any errors in the admin page. The entire job however has SUCCEDED. How can I track down the reason?  Als...
   Author: Mohit Anchlia, 2012-02-27, 19:55
[expand - 2 more] - Re: LZO with sequenceFile - Hadoop - [mail # user]
...On Sun, Feb 26, 2012 at 9:09 AM, Harsh J  wrote:   Thanks! Some questions I have is: 1. Would it work with sequence files? I am using SequenceFileAsTextInputStream 2. If I use Sequ...
   Author: Mohit Anchlia, 2012-02-26, 17:12
Compression in sequence file - Hadoop - [mail # user]
...I see sequenceFile support block level and record level compression. Could someone please help me understand why one is chosen over other? And which one is generally better for performance?...
   Author: Mohit Anchlia, 2012-02-25, 21:33
MapReduce tunning - Hadoop - [mail # user]
...I am looking at some hadoop tuning parameters like io.sort.mb, mapred.child.javaopts etc.  - My question was where to look at for current setting - Are these settings configured cluster...
   Author: Mohit Anchlia, 2012-02-25, 06:36
Streaming job hanging - Hadoop - [mail # user]
...Streaming job just seems to be hanging  12/02/22 17:35:50 INFO streaming.StreamJob: map 0% reduce 0%   On the admin page I see that it created 551 input split. Could somone suggest...
   Author: Mohit Anchlia, 2012-02-23, 01:38
[expand - 2 more] - Re: Splitting files on new line using hadoop fs - Hadoop - [mail # user]
...Thanks I did post this question to that group. All xml document are separated by a new line so that shouldn't be the issue, I think.  On Wed, Feb 22, 2012 at 12:44 PM,  wrote: &nbs...
   Author: Mohit Anchlia, 2012-02-22, 22:57
[expand - 7 more] - Re: Writing small files to one big file in hdfs - Hadoop - [mail # user]
...Finally figured it out. I needed to use SequenceFileAstextInputFormat. There is just lack of examples that makes it difficult when you start.  On Tue, Feb 21, 2012 at 4:50 PM, Mohit Anc...
   Author: Mohit Anchlia, 2012-02-22, 03:31
[expand - 1 more] - Re: Writing to SequenceFile fails - Hadoop - [mail # user]
...I am past this error. Looks like I needed to use CDH libraries. I changed my maven repo. Now I am stuck at  *org.apache.hadoop.security.AccessControlException *since I am not writing as...
   Author: Mohit Anchlia, 2012-02-21, 21:45
Setting eclipse for map reduce using maven - Hadoop - [mail # user]
...I am trying to search for dependencies that would help me get started with developing map reduce in eclipse and I prefer to use maven for this.  Could someone help me point to direction...
   Author: Mohit Anchlia, 2012-02-21, 17:18
Difference between hdfs dfs and hdfs fs - Hadoop - [mail # user]
...What's the different between hdfs dfs and hdfs fs commands? When I run hdfs dfs -copyFromLocal /assa . and use pig it can't find it but when I use hdfs fs pig is able to find the file....
   Author: Mohit Anchlia, 2012-02-21, 17:16
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