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RE: how to get input schema in UDF - Pig - [mail # user]
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...Thanks, Robert. However, I'm still not clear on how to get the original fields for the tupl e inside the bag. Following is the code to generate the schema. public Schema outputS...
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Author: Danfeng Li,
2012-08-14, 00:03
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how to get input schema in UDF - Pig - [mail # user]
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...I have a big, e.g. A: {(name: chararray,age: int)}, I wrote a udf which add s 1 more field in the tuple inside the bag. E.g. B: {(name: chararray,age: int, rank:int)}. Because the numb...
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Author: Danfeng Li,
2012-08-13, 22:43
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looking for example using pig correlation UDF - Pig - [mail # user]
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...In piggybank there is org.apache.pig.piggybank.evaluation.stats.COR, but it 's deprecated. There are also COR.Final, COR.Initial and COR.Intermed. I tried to find some examples, but un...
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Author: Danfeng Li,
2012-07-19, 18:23
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RE: a simple logic causes very long compiling time on pig 0.10.0 - Pig - [mail # user]
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...Ticket PIG-2769 is created for this one https://issues.apache.org/jira/browse/PIG-2769 Dan From: Jonathan Coveney [mailto:[EMAIL PROTECTED]] Sent: Tuesday, June 26, 2012 4...
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Author: Danfeng Li,
2012-06-26, 23:19
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a simple logic causes very long compiling time on pig 0.10.0 - Pig - [mail # user]
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...We found the following simple logic will cause very long compiling time for pig 0.10.0, while using pig 0.8.1, everything is fine. A = load 'A.txt' using PigStorage() AS (m...
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Author: Danfeng Li,
2012-06-26, 22:12
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RE: Job setup for a pig run takes ages - Pig - [mail # user]
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...I took some snapshots, the results are attached. I use pig 0.8.1 [dli@hmaster run]$ pig -version Apache Pig version 0.8.1-cdh3u2 (rexported) compiled Oct 13 2011, 22:35:57 and de...
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Author: Danfeng Li,
2012-06-19, 14:42
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RE: Job setup for a pig run takes ages - Pig - [mail # user]
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...This is the jstack output during the setup time, not exactly sure how to in teroperate it. Thanks. Dan [dli@hmaster run]$ jstack 15640 2012-06-18 17:32:47 Full thread dump Java H...
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Author: Danfeng Li,
2012-06-18, 21:51
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RE: Job setup for a pig run takes ages - Pig - [mail # user]
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...We also run into the long setup time issue, but our problem is different 1. The setup time takes about 20minutes, we can't see anything on the jobtracker during this setup time. 2. Our...
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Author: Danfeng Li,
2012-06-13, 18:24
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Python UDF - Pig - [mail # user]
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...I try to follow the example on http://pig.apache.org/docs/r0.8.1/udf.html#P ython+UDFs for Python UDF, but I got the following error * My command: pig -x local ptest.pig * error ...
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Author: Danfeng Li,
2011-10-06, 22:36
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