GitHub user navis opened a pull request:
https://github.com/apache/hive/pull/41
HIVE-10890 Provide implementable engine selector
Now hive supports three kind of engines. It would be good to have an
automatic engine selector without setting explicitly engine for execution.
Added two configurations
> hive.execution.engine.selector
> hive.execution.engine.selector.param
Test implementation is included as EngineSelector$SimpleSelector, which
supports simple grammar something like,
> spark = $total < 10gb && $num_aliases < 4, tez
which means if total input length is less than 10gb and number of aliases
is less than 4, use spark, else tez
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/navis/hive HIVE-10890
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/hive/pull/41.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #41
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commit 9349d121bdd274485c0c0f4d149c5d382bed54e3
Author: navis.ryu <na...@apache.org>
Date: 2015-06-03T01:10:51Z
HIVE-10890 Provide implementable engine selector
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