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Re: FLATTEN(bag_of_tuples) error in 0.8.1 ? - Pig - [mail # user]
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...we use cdh3u3, unfortunately due to company ops experience, we'd have to stick to cdh3u3 and pig 0.8.1 On Wed, Jul 18, 2012 at 5:39 PM, Jonathan Coveney wrote: ...
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Author: Yang,
2012-07-19, 00:48
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Re: FLATTEN(bag_of_tuples) error in 0.8.1 ? - Pig - [mail # user]
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...this actually caused a rather nasty bug today. in another udf that returns a bag of tuples, originally I inserted the tuple into a fieldschema inside the bag, and the schema for FLATT...
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Author: Yang,
2012-07-18, 23:52
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Re: FLATTEN(bag_of_tuples) error in 0.8.1 ? - Pig - [mail # user]
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...ok, found the issue, now I do not create an explicit FieldSchema for the inside tuple Schema, but directly insert the tuple schema into the bag. then it works. this is indeed som...
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Author: Yang,
2012-07-18, 00:55
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FLATTEN(bag_of_tuples) error in 0.8.1 ? - Pig - [mail # user]
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...I created a Udf that returns a Bag of Tuples. the syntax is all fine, but when I run it in pig, Pig gives error: 2/07/17 16:51:58 INFO jvm.JvmMetrics: Cannot initialize JVM Metrics wit...
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Author: Yang,
2012-07-17, 23:59
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Re: FLATTEN() behavior difference in 0.8.1 and 0.10.0 ? - Pig - [mail # user]
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...actually FLATTEN(FLATTEN(....)) is not syntactically correct , at least in 0.8. also semantically it's not what I wanted either, cuz FLATTEN works on bags, while I wanted to project ALL fiel...
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Author: Yang,
2012-07-17, 19:51
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who is resetting my mapred.map.tasks? - Pig - [mail # user]
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...I have the following PIG script. In the beginning, I set the mapred.map.tasks but when the job is launched, I see from jobtracker UI that the job.xml shows that the mapred.map.t...
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Author: Yang,
2012-07-17, 00:15
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Re: for UDF, figure out whether it's on a task tracker? - Pig - [mail # user]
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...I see, thanks Jonathan. On Tue, Jul 3, 2012 at 10:01 AM, Jonathan Coveney wrote: ...
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Author: Yang,
2012-07-03, 17:05
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for UDF, figure out whether it's on a task tracker? - Pig - [mail # user]
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...normally job tracker and task tracker is on different nodes. when I submit a pig script using UDF. I think the UDF constructor is first run (several times, don't know why) on the job t...
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Author: Yang,
2012-07-03, 16:57
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streaming fails to pack 2 -file ? - Pig - [mail # user]
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...when I upload 2 files like -file myfile1 -file myfile2 only the first one is actually uploaded. but according to http://hadoop.apache.org/common/docs/r0.17.1/streaming.html...
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Author: Yang,
2012-07-02, 18:30
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Re: suggestion - Pig - [mail # user]
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...perfect, thanks On Fri, Jun 29, 2012 at 10:11 AM, Jie Li wrote: ...
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Author: Yang,
2012-06-29, 17:29
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