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Re: Strange CROSS behavior - Pig - [mail # user]
...What is the storage func you're using? My guess is that there is someshared state in the Storage func. Take a look at this SO that is dealingwith shared state in Stores.http://stackoverflow....
   Author: Pradeep Gollakota, 2014-04-18, 21:29
[PIG-3453] Implement a Storm backend to Pig - Pig - [issue]
...There is a lot of interest around implementing a Storm backend to Pig for streaming processing. The proposal and initial discussions can be found at https://cwiki.apache.org/confluence/displ...
http://issues.apache.org/jira/browse/PIG-3453    Author: Pradeep Gollakota, 2014-04-17, 03:36
Re: Pig script : Need help - Pig - [mail # user]
...That is because you're calling REPLACE on a bag of tuples and not a string.What you would want to do is write a UDF (suggested name JOIN_ON), thattakes as an argument a join char and will jo...
   Author: Pradeep Gollakota, 2014-04-07, 20:28
Re: 回复:Re: Any way to join two aliases without using CROSS - Pig - [mail # user]
...Unfortunately, the Enumerate UDF from DataFu would not work in this case.The UDF works on Bags and in this case, we want to enumerate a relation.Implementing RANK is a very tricky thing to d...
   Author: Pradeep Gollakota, 2014-03-26, 04:38
Re: Unable to add file paths when registering a UDF - Pig - [mail # user]
...According to the docs, It should work.http://pig.apache.org/docs/r0.12.0/basic.html#registerStupid question, but is the path correct? Is it on HDFS or local disk?On Tue, Mar 11, 2014 at 8:36...
   Author: Pradeep Gollakota, 2014-03-13, 03:43
Re: one MR job for group-bys and cube-bys - Pig - [mail # user]
...I forgot to mention that there are also other 3rd party libraries that makeexamining the physical plan easier. For example take a look atLipstickfrom Netflix.On Tue, Mar 11, 2014 at 11:41 AM...
   Author: Pradeep Gollakota, 2014-03-11, 18:49
Re: Nested foreach with order by - Pig - [mail # user]
...No... that wouldn't be related since you're not doing a GROUP ALL.The `FLATTEN(MY_UDF(t))` has me a little weary. Something is possibly goingwrong in your UDF. The output of your UDF is goin...
   Author: Pradeep Gollakota, 2014-02-28, 00:13
Re: how to control nested CROSS parallelism? - Pig - [mail # user]
...It's strange that it's being executed on the Map-side. The group is a reduce side operation (I'm assuming) and it seems that the nested foreach would happen on Reduce-side after grouping. Ha...
   Author: Pradeep Gollakota, 2014-01-20, 18:27
Re: Spilling issue - Optimize "GROUP BY" - Pig - [mail # user]
...Did you mean to say "timeout" instead of "spill"? Spills don't cause task failures (unless a spill fails). Default timeout for a task is 10 min. It would be very helpful to have a stack trac...
   Author: Pradeep Gollakota, 2014-01-10, 18:23
Re: Log File Versioning and Pig - Pig - [mail # user]
...It seems like what you're asking for is Versioned Schema management. Pig is not designed for that. Pig is only a scripting language to manipulate datasets.  I'd recommend you look into ...
   Author: Pradeep Gollakota, 2013-12-12, 23:35
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