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Re: Can a bucket be added to a partition? - Hive - [mail # user]
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...I tried this interesting idea but also felt a little confusing. I guess you'll need to change the table schema so that it has both buckets and partitions. And to take advantage o...
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Author: Jie Li,
2013-05-02, 04:38
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Re: Huge join performance issue - Hive - [mail # user]
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...In order for us to understand the performance and identify the bottlenecks, could you do two things: 1) run the EXPLAIN command and share with us the output 2) share with us the hadoop...
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Author: Jie Li,
2013-04-27, 18:14
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Hive Operator Counters - Hive - [mail # user]
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...Hi all, Does anyone notice that the operator counters are not properly maintained? They are useful for understanding the query plan and execution, e.g how many rows each operator is pr...
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Author: Jie Li,
2013-02-06, 05:36
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Map-only aggregation - Hive - [mail # user]
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...Hi all, Can Hive implement the aggregation as a Map-only job? As we know the data may be pre-partitioned via PARTITION-BY or CLUSTERED-BY, so we don't need the reduce phase to repartit...
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Author: Jie Li,
2013-01-05, 03:46
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Re: HiveHistoryViewer concurrency problem - Hive - [mail # user]
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...Hi Qiang, Could you describe how HiveHistoryViewer is used? I'm also looking for a tool to understand the Hive log. Thanks, Jie On Sat, Jan 5, 2013 at 9:54 AM, Qiang Wang &...
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Author: Jie Li,
2013-01-05, 03:41
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Re: A tool to analyze and tune performance for Hive? - Hive - [mail # user]
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...Thanks for the pointer to HiTune. The dataflow graphs in the paper looks nice. The potential issues I can see: 1) the data collection requires a Chukwa cluster being set up. Seems too ...
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Author: Jie Li,
2012-12-14, 02:49
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A tool to analyze and tune performance for Hive? - Hive - [mail # user]
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...Hi everyone, May I know if there is any tool available to analyze and tune the performance for Hive queries? And what is the state of the art? I had some experience on tuning Pig...
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Author: Jie Li,
2012-12-14, 02:01
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Re: Specify per-query configuration via a file - Hive - [mail # user]
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...Perfect! Yeah there is a "--config" option to specify Hive configuration directory. Thanks! Jie On Sun, Jul 8, 2012 at 6:26 PM, Edward Capriolo wrote: ...
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Author: Jie Li,
2012-07-09, 05:17
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Re: Specify per-query configuration via a file - Hive - [mail # user]
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...Thanks Bejoy. It might be very convenient to support specifying configuration using a separate conf file, e.g. hive -f query.hql -conf conf.xml Open a jira? Jie ...
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Author: Jie Li,
2012-07-09, 00:48
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Specify per-query configuration via a file - Hive - [mail # user]
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...Hi all, Besides "-hiveconf x=y", does Hive support specifying per-query configuration via a file? Thanks, Jie...
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Author: Jie Li,
2012-07-07, 23:31
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