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Re: when Algebraic UDF are used ? - Pig - [mail # user]
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...side note: sorry if it sounded bad. it is not RTFM response. I've just sent you the better explanation I could. And that book explain it better than I can On Wed, Jul 25, 2012 at 1:21...
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Author: pablomar,
2012-07-25, 17:25
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Re: when Algebraic UDF are used ? - Pig - [mail # user]
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...from the same book ( http://ofps.oreilly.com/titles/9781449302641/writing_udfs.html) "Memory Issues in Eval Funcs Some operations you will do in your UDFs will require more memor...
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Author: pablomar,
2012-07-25, 17:21
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Re: when Algebraic UDF are used ? - Pig - [mail # user]
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...according to: http://ofps.oreilly.com/titles/9781449302641/writing_udfs.html "Implementing Algebraic does not guarantee that the algebraic implementation will always be used. Pig only ...
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Author: pablomar,
2012-07-25, 16:41
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Re: Strange behaviour when using FLATTEN - Pig - [mail # user]
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...this is a very good explanation of flatten: http://ofps.oreilly.com/titles/9781449302641/advanced_pig_latin.html#foreach_flatten On Wed, Apr 11, 2012 at 9:46 AM, James New...
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Author: pablomar,
2012-04-11, 13:55
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Re: Flatten a Bag on One Line? - Pig - [mail # user]
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...what about something like this? (typing on the phone, forgive any mistake) public class Flat extends EvalFunc { public Tuple exec(Tuple input) throws IOException { try { List &nb...
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Author: pablomar,
2012-02-10, 16:09
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Re: FOR - EACH? - Pig - [mail # user]
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...what about? b = group a by ... c = foreach b { generate ... } On 12/2/11, Marek Miglinski wrote:...
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Author: pablomar,
2011-12-02, 14:15
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Re: java.lang.OutOfMemoryError when using TOP udf - Pig - [mail # user]
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...just a guess .. could it be possible that the Bag is kept in memory instead of being spilled to disk ? browsing the code of InternalCachedBag, I saw: private void init(int bagCount, fl...
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Author: pablomar,
2011-11-23, 03:10
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Re: java.lang.OutOfMemoryError when using TOP udf - Pig - [mail # user]
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...i might be wrong, but it seems the error comes from while(itr.hasNext()) not from the add to the queue so i don't think it is related to the number of elements in the queue ... maybe the fie...
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Author: pablomar,
2011-11-21, 20:53
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Re: java.lang.OutOfMemoryError when using TOP udf - Pig - [mail # user]
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...according to the stack trace, the algebraic is not being used it says updateTop(Top.java:139) exec(Top.java:116) On 11/17/11, Dmitriy Ryaboy wrote:...
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Author: pablomar,
2011-11-17, 17:59
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Re: Working with date converter - Pig - [mail # user]
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...sorry for the delay !!! it must be better option, but I wrote a simple loader, extending PigStorage (I re-used/took a lot of code from PigStorage, specially its parse/split method) you...
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Author: pablomar,
2011-11-10, 02:41
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