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https://issues.apache.org/jira/browse/HIVE-396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12741465#action_12741465
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Alan Gates commented on HIVE-396:
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> How many mapper slots and reducer slots are there in the cluster?
There are 36 mapper and 36 reducer slots on the cluster.
> How many mappers and reducers did hadoop, hive and pig take?
Hadoop and Hive took 35 maps, pig took 36. I set all to use 4 reducers.
> Are you using hive trunk? What is the hive svn revision number?
SVN revision 796069
> I am also interested in learning how you write the efficient hadoop code for
> the aggregation query. Can you attach your hadoop code?
Attached as AlansMRCode.tgz
I looked in hive-default.xml and didn't see any hive.merge.mapfiles. Should I
add it to hive-defult.xml and set it to false? Out of curiosity, why do you
default to merging map files first?
> Hive performance benchmarks
> ---------------------------
>
> Key: HIVE-396
> URL: https://issues.apache.org/jira/browse/HIVE-396
> Project: Hadoop Hive
> Issue Type: New Feature
> Reporter: Zheng Shao
> Assignee: Yuntao Jia
> Attachments: hive_benchmark_2009-06-18.pdf,
> hive_benchmark_2009-06-18.tar.gz, hive_benchmark_2009-07-12.pdf,
> hive_benchmark_2009-07-21.tar.gz
>
>
> We need some performance benchmark to measure and track the performance
> improvements of Hive.
> Some references:
> PIG performance benchmarks PIG-200
> PigMix: http://wiki.apache.org/pig/PigMix
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