Sergey Shelukhin created HIVE-9010:
--------------------------------------
Summary: introduce Hive perf configuration utility
Key: HIVE-9010
URL: https://issues.apache.org/jira/browse/HIVE-9010
Project: Hive
Issue Type: Improvement
Components: Configuration
Reporter: Sergey Shelukhin
Recently, many major perf features have been added (or are being added) to
Hive, such as vectorization, CBO, Tez, Spark, etc.
Customers using the Apache distribution may not be aware of these, and may not
take advantage of all the improvement Hive can offer. That may also apply to
other config settings.
We can create a Hive perf configuration utility that will be able to set 6-10
important, easy-to-set settings. It can be used by admins or users when
deploying Hive or on an existing cluster. Ideally all the no-brainer
set-to-true settings would be there, with caveats, if any, described; some
other ones may be, too, but we don't want to add any options for tuning because
the whole point is to make it not confusing (as compared to editing the entire
config file). Unless we have automatic tuning at some point, the users doing
perf tuning can edit the config file manually after reading the docs.
Then we can mention it prominently in the docs and release notes. This should
go a long way towards making sure users can utilize Hive to its full potential,
without us enabling large/perf features by default, at least until they are
stable (e.g. CBO can be enabled by default, so this tool may note that).
Experimental feature settings (true/false or simple) can also be added in a
separate section.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
