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How to run pig batch? - Pig - [mail # user]
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...hi, all I have tens of simple pig scripts to run. While there's no parameter name collision, I merged them into a large pig script which is about 4000 lines. But the merg...
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Author: Haitao Yao,
2012-02-20, 06:58
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store the result with PigStorage - Pig - [mail # user]
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...hi while using PigStorage , there will have _logs and _SUCCESS , which are useless . How can store the result without _logs and _SUCCESS? thanks....
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Author: Haitao Yao,
2012-02-17, 09:00
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how can I store the result into local directory under distributed mode? - Pig - [mail # user]
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...Hi, I want to store the result into local directory under distributed hadoop env. How can I achieve this? With PigStorage, the result will be stored into HDFS. Is there any command ...
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Author: Haitao Yao,
2012-02-16, 03:15
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Re: question about AVG - Pig - [mail # user]
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...I solve this problem by extending the build in AVG function to accept char array bag as input and calculate the result. why the build-in AVG can not accept the char array bag and...
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Author: Haitao Yao,
2012-02-15, 08:59
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question about AVG - Pig - [mail # user]
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...hi, all here's my pig script: A = load 'input' as (b:bag{t:(x:int, y:int)}); B = foreach A generate AVG(b.x); describe B; it works well. if the b.x is char array, the pro...
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Author: Haitao Yao,
2012-02-15, 06:19
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Re: Generate Maps - Pig - [mail # user]
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...The code pasted is wrong, sorry for my mistake. here's the updated code: @SuppressWarnings("rawtypes") public class HEDataConverter extends EvalFunc { @Override public Ma...
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Author: Haitao Yao,
2012-02-09, 09:01
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Re: Generate Maps - Pig - [mail # user]
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...you can write a EvalFuc like this: /** * @author haitao * */ public class HEDataConverter extends EvalFunc { private TupleFactory tupleFactory = TupleFa...
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Author: Haitao Yao,
2012-02-09, 07:40
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error code 1200 from pig shell - Pig - [mail # user]
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...hi, all here's my pig script: grunt> A = load '/tmp/test_file' using PigStorage(',') as (uid:long, payload:bytearray, ts:long, type:int); grunt> B = foreach A generate COUNT(A);...
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Author: Haitao Yao,
2012-02-09, 02:13
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Re: How to load customized map data schema - Pig - [mail # user]
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...I've wrote my own loader and here's the error: grunt>data = load '/tmp/titan_mixi_prod.10' using he.HEStorage() as (uid:long, payload:map, ts:long, type:int); ERROR 1200: &nbs...
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Author: Haitao Yao,
2012-02-07, 02:50
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How to load customized map data schema - Pig - [mail # user]
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...Hi, all out data format for map is Key:Value|Key:Value , how can I load the data into map type? Can pig define the map delimiter like hive? thanks....
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Author: Haitao Yao,
2012-02-06, 07:12
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