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Re: how can i fix this? ERROR 1000: Error during parsing. thanks - Pig - [mail # user]
...Looks like pig is trying to create an instance using the default constructo r. Can you try adding a default constructor to the udf class - one with no  arguments? -Thejas    O...
   Author: Thejas M Nair, 2010-08-11, 18:48
Re: does Pig sit on every node in cluster or just namenode??? Please help - Pig - [mail # user]
...How are you invoking the pig query ? When you say it makes use of only the  namenode, does it mean that it is running in local mode ?Or do you mean the  namedone also a datanode an...
   Author: Thejas M Nair, 2010-08-10, 14:57
[expand - 1 more] - Re: UDF with dependency on external jars & native code - Pig - [mail # user]
...  On 8/4/10 3:13 AM, "Kaluskar, Sanjay"  wrote:   Do you know what change in mapred-site.xml caused it to stop working ? Is i t after adding mapred.cache.archives ?   &nb...
   Author: Thejas M Nair, 2010-08-04, 18:46
Re: question on pig join - Pig - [mail # user]
...I am not sure about what you meant by "null match".  Would this work  ?  F1 = load 'largefile' as (field1,..); F2 = load 'smallfile' as (field2, ..);  J = join F1 by fiel...
   Author: Thejas M Nair, 2010-08-02, 19:35
Re: dereference bag of tuples of fields - Pig - [mail # user]
...Can you given an example of your data, and what output you want from the pi g query ?  That will help me understand what you want the query to do . From the schem a and query, that is n...
   Author: Thejas M Nair, 2010-07-30, 22:38
[expand - 2 more] - Re: Java heap error - Pig - [mail # user]
...Hi Syed, Disabling the combiner in the pig query should get this working. As I mentioned, it looks like combiner is being used in your query. You can  confirm that by running explain on...
   Author: Thejas M Nair, 2010-07-29, 19:38
Re: parallism level - Pig - [mail # user]
...Please see http://hadoop.apache.org/pig/docs/r0.7.0/piglatin_ref2.html .  You can use Oset default_parallel 10¹ to ask query to use 10 reducers for all MR jobs, or specify Oparallel x¹ ...
   Author: Thejas M Nair, 2010-07-29, 17:18
Re: UNION -- Ordered - Pig - [mail # user]
...As you observed, union does not guarantee the ordering . You will need to p roject an additional column indicating the order you want, so that you can  do an order-by on it.  -Thej...
   Author: Thejas M Nair, 2010-07-29, 01:05
Re: Group by is not working with Filter - Pig - [mail # user]
...This looks like a bug , can you please open a jira ?  Adding following statements to this script get it to work - grunt> f = foreach G1 generate group.a1 as a1, group.a2 as a2, A; gr...
   Author: Thejas M Nair, 2010-07-29, 00:48
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