Member since
02-28-2016
45
Posts
45
Kudos Received
2
Solutions
My Accepted Solutions
Title | Views | Posted |
---|---|---|
1147 | 03-26-2016 05:03 AM | |
1305 | 03-22-2016 01:39 PM |
12-11-2016
10:45 AM
Thanks @Kuldeep Kulkarni
This has cleared some doubts about how Hadoop services auto-login even though initial user TGT shows expired.
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03-26-2016
05:03 AM
closing the Question with the Kuldeep's suggested link https://hive.apache.org/javadocs/r0.10.0/api/org/apache/hadoop/hive/ql/ppd/PredicatePushDown.html
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03-24-2016
03:11 PM
I wanted to understand the concept for vectorization.I got it from above link.Thanks
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03-24-2016
06:00 AM
@ thanks Eyad
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03-23-2016
05:41 AM
No, I was looking for concept of Predicate Pushdown and how it works.
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03-23-2016
05:24 AM
@Kuldeep Kulkarni thanks
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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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03-20-2016
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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03-16-2016
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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03-14-2016
10:26 AM
thanks@Artem
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03-14-2016
10:26 AM
thanks @Benjamin Leonhardi
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03-13-2016
10:54 AM
While using Order By operator in Pig Latin,If we have not mentioned ASC or DESC , by default it sorts by ASC order. ex- grunt >OrderedData = order studentDetails by age; This will sort by default in ASC order. Otherwise We can mention here as below: OrderedData = order studentDetails by age DESC; OrderedData = order studentDetails by age ASC;
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03-12-2016
03:22 PM
1 Kudo
thanks @Artem Ervits
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03-03-2016
06:19 AM
1 Kudo
thanks karthik
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03-03-2016
06:02 AM
1 Kudo
It's For Pig
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