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02-28-2016
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Title | Views | Posted |
---|---|---|
2351 | 03-26-2016 05:03 AM | |
1994 | 03-22-2016 01:39 PM |
03-22-2016
01:39 PM
3 Kudos
The command set hive.enforce.bucketing = true; allows the correct number of reducers and the cluster by column to be automatically selected based on the table. Otherwise, you would need to set the number of reducers to be the same as the number of buckets.
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03-22-2016
01:39 PM
@ thanks Kazan, there is bit correction with your ans,The command set hive.enforce.bucketing = true; allows the correct number of reducers and the cluster by column to be automatically selected based on the table. Otherwise, you would need to set the number of reducers to be the same as the number of buckets.
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03-22-2016
06:08 AM
3 Kudos
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Apache Hive
03-20-2016
07:36 AM
thanks @Benjamin Leonhardi
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03-20-2016
07:36 AM
1 Kudo
thanks @Divakar Annapureddy
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03-20-2016
07:35 AM
Thanks @Neeraj Sabharwal,But still i have one question,As per above example the table page_view is partitioned by dt and country columns,means the table has now partitions based on these 2 columns.so for bucketing case,where does these 32 buckets gets created in each partition? please clear this doubt. Thanks!!!
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03-18-2016
09:01 PM
5 Kudos
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Apache Hive
03-16-2016
03:43 PM
Thanks @Benjamin
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03-16-2016
02:32 PM
@Benjamin Leonhardi , Thanks for your ans,Finally it means which one is better is depends on small dataset size only.Is it right?
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03-16-2016
07:50 AM
Please post examples if have any.
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