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Re: Concurrency in hive - Hive - [mail # dev]
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...Almost all operations in hive can exploit map reduce for parallelism. (isnt not really done on the thread level) essentially if you run a hive job and there is multiple mappers or reducers i...
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Author: Edward Capriolo,
2012-06-22, 14:10
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Re: Test failures : Running HIVE unit test with Hadoop - 1.x - Hive - [mail # dev]
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...Kanna (image see below) http://www.edwardcapriolo.com/roller/edwardcapriolo/resource/hive_issues.pn g We have had a recent spree of new issues from supporting new versions of had...
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Author: Edward Capriolo,
2012-06-21, 22:38
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Re: Test failures : Running HIVE unit test with Hadoop - 1.x - Hive - [mail # dev]
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...All indications are most of the things work fine, but we seem to have a steady trickle of compatibility issues slightly after things are released. I can bet your issue is unescaped - in uris...
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Author: Edward Capriolo,
2012-06-21, 21:38
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Re: mapred.user.jobconf.limit question - Hive - [mail # user]
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...If you have a query producing that many partitions it is probably a bad idea. Consider using hive's bucketing or changing your partitioning scheme. Edward On Wed, Jun 20, 2012 at...
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Author: Edward Capriolo,
2012-06-20, 20:12
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Re: Please HELP: HIVE alter table add new partition to schema... - Hive - [mail # user]
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...You can not change the partition columns. I would use a dynamic partition insert to select all the data from the original table into the new table. On 6/19/12, Tim Havens wrote:...
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Author: Edward Capriolo,
2012-06-19, 15:12
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Re: hive.merge properties with RCFile - Hive - [mail # dev]
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...This will not work. set hive.merge.size.per.task=28*1024*1024; It has to be a number. On Mon, Jun 18, 2012 at 2:46 PM, Benyi Wang wrote:...
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Author: Edward Capriolo,
2012-06-18, 19:27
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Re: sqoop, hive and lzo and cdh3u3 - not creating in index automatically - Hive - [mail # user]
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...Have you considered switching to sequence files using snappy compression (or lzo). IIRC the process of generating LZO files and then generating an index on top of these is cumbersome. When s...
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Author: Edward Capriolo,
2012-06-18, 13:32
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Re: Running unit tests on Windows - Need some suggestions/help to fix exim & archive related issues - Hive - [mail # dev]
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...ARge windows :) Well '!' is just a shortcut for a process builder. I guess if we were clever enough we could make the escapes more cross platform. It might be better to build udf...
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Author: Edward Capriolo,
2012-06-15, 03:26
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Re: Hive List Bucketing - Feature Review - Hive - [mail # dev]
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...We have had a ticket open for quite some time for combine input format to work across partitions. Not sure if that can help with what you are seeing as well. It could help us alot. Edw...
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Author: Edward Capriolo,
2012-06-14, 17:30
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Re: Hive List Bucketing - Feature Review - Hive - [mail # dev]
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...I am of the opinion this feature is too specialized to be generally helpful. The cardinality of 'x' is in 1000's per partition of T. Moreover, there is a skew for the values of 'x'. In...
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Author: Edward Capriolo,
2012-06-14, 16:34
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