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Re: Concatenate strings within a group - Pig - [mail # user]
...I'm not aware of any native PIG commands that can do this. So you'll have to implement a UDF to do this. My implementation would look as follows:  A = load 'data' as (id: int, seg_num: ...
   Author: Pradeep Gollakota, 2013-07-14, 17:52
Re: Error Handling in Scripts? - Pig - [mail # user]
...I have not tried this yet, but hadoop has a built-in mechanism for skipping bad records. I'm guessing that it would work fine with Pig. http://hadoop.apache.org/docs/r1.1.2/mapred_tutorial.h...
   Author: Pradeep Gollakota, 2013-07-11, 17:46
Re: ERROR 1071: Cannot convert a generic_writablecomparable to a String - Pig - [mail # user]
...Instead of doing "values.add((Text) value);" try doing "values.add(value.toString());" (And make sure that values is of type List instead of List)  I'm not too sure of the details but t...
   Author: Pradeep Gollakota, 2013-07-10, 20:01
Re: include a script in another script? ┬┐error in macro Pig? - Pig - [mail # user]
...If it's just registering common jars and defining aliases for UDFs, I think you can do think in .pigrc or in .pigbootup   On Fri, Jul 5, 2013 at 6:56 AM, Miguel Angel Martin junquera &n...
   Author: Pradeep Gollakota, 2013-07-05, 17:50
[expand - 1 more] - Re: dereferencing bag of map - Pig - [mail # user]
...Suresh,  Look into using JsonStorage(). This seems to be what you're looking for. http://pig.apache.org/docs/r0.10.0/func.html#jsonloadstore   On Fri, Jun 21, 2013 at 8:35 AM, Shah...
   Author: Pradeep Gollakota, 2013-06-21, 12:42
Re: Loading data from ranges of ordered subdirs - Pig - [mail # user]
...There's two possibilites that come to mind.  1. Write a custom LoadFunc in which you can handle these regular expressions. *Not the most ideal solution* 2. Use HCatalog. The example the...
   Author: Pradeep Gollakota, 2013-06-10, 21:02
Re: Maintain sort within GROUP BY? - Pig - [mail # user]
...I think you are looking for http://pig.apache.org/docs/r0.7.0/api/org/apache/pig/data/DataBag.html#isSorted()  If I'm not mistaken, if your initially loaded bag is sorted, then they wou...
   Author: Pradeep Gollakota, 2013-06-06, 19:19
Re: Tracking parts of a job taking the most time - Pig - [mail # user]
...This may not be what you're looking for, but you can also try using Twitter Ambrose to monitor your Pig scripts as a whole.  https://github.com/twitter/ambrose  Not sure what you m...
   Author: Pradeep Gollakota, 2013-06-06, 11:22
Re: Flattening nested bags - Pig - [mail # user]
...What version of pig are you using? The example I'm providing will only work 0.9+ since it's using nested foreach statements.  Getting from the flattened and joined stated to the grouped...
   Author: Pradeep Gollakota, 2013-06-06, 05:19
[expand - 1 more] - Re: Join on custom LoadFunc not working correctly - Pig - [mail # user]
...Does anyone have any thoughts on this?  I'm completely out of idea's on this.   On Thu, May 30, 2013 at 3:12 PM, Pradeep Gollakota wrote:  ...
   Author: Pradeep Gollakota, 2013-06-03, 13:46
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB