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Re: Pig architecture explanation? - Pig - [mail # user]
...Hi Gardner,  This paper would be a good starting point http://infolab.stanford.edu/~olston/publications/vldb09.pdf  Additionally, you could check out some other material here https...
   Author: Prashant Kommireddi, 2013-03-17, 23:37
[expand - 5 more] - Re: pig 0.11 candidate 2 feedback: Several problems - Pig - [mail # dev]
...Looks like all outstanding 0.11.1 critical bugs are fixed. Time for an RC? Please let me know if I can help.  On Fri, Mar 8, 2013 at 3:51 PM, Dmitriy Ryaboy  wrote:  ...
   Author: Prashant Kommireddi, 2013-03-16, 00:12
Re: Error 4010 Cannot find hadoop configurations in classpath - Pig - [mail # user]
...Take a look at http://pig.apache.org/docs/r0.11.0/start.html#Running+the+Pig+Scripts+in+Mapreduce+Mode  Additionally, you can try "pig -x local" if you wish to run it in local mode http...
   Author: Prashant Kommireddi, 2013-03-15, 16:21
Re: Pig Error Java_home not set - Pig - [mail # dev]
...export JAVA_HOME= on your local machine.  Even better if you can add it to your .bashrc or .profile or their equivalents.   On Mar 15, 2013, at 7:59 AM, oualid ait wafli  wrot...
   Author: Prashant Kommireddi, 2013-03-15, 15:03
Possible issue when using non-bundled hadoop - Pig - [mail # dev]
...A pig user brought to my attention that PIG_OPTS are not being picked up but "pig -Dfoo=bar script.pig" works. I dug a little into it and found that in the case when an external hadoop (not ...
   Author: Prashant Kommireddi, 2013-03-08, 01:07
[expand - 1 more] - Re: too many memory spills - Pig - [mail # user]
...You can do a few things here      1. Increase mapred.child.java.opts to a higher number (default is    200MB). You will have to do this while making sure (# of MR sl...
   Author: Prashant Kommireddi, 2013-03-08, 00:25
Re: Pivot table with zeros instead of empty - Pig - [mail # user]
...You can group on ip which will result in ip -> bag mappings. Let's say you loaded (ip, hour, count) dataset as follows  grunt> a = load 'data' using PigStorage(',') as (ip:chararr...
   Author: Prashant Kommireddi, 2013-03-07, 08:04
Re: Logarithm functions - Pig - [mail # user]
...You can do a "log n base 2" operation similar to your SQL query  A = foreach L generate *, LOG(server_time)/LOG(2) as LogGroup; B = group A by (server,processor,area, LogGroup);   ...
   Author: Prashant Kommireddi, 2013-03-07, 08:04
[PIG-3211] Allow default Load/Store funcs to be configurable - Pig - [issue]
...PigStorage is used by default when a Load/StoreFunc is not specified. It would be useful to make this configurable....
http://issues.apache.org/jira/browse/PIG-3211    Author: Prashant Kommireddi, 2013-03-05, 18:23
Re: avoiding Group by or filter - Pig - [mail # user]
...Hi Preeti,  Using FILTER or not depends on your requirements and has nothing to do with SUM or AVG.  SUM, AVG accept bags as input, so as long as you are able to provide that it sh...
   Author: Prashant Kommireddi, 2013-03-05, 04:30
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