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https://issues.apache.org/jira/browse/IMPALA-12654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17803283#comment-17803283
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ASF subversion and git services commented on IMPALA-12654:
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Commit ac8ffa9125fc3be6f4ceb958ea4930b7834f9292 in impala's branch
refs/heads/master from Riza Suminto
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=ac8ffa912 ]
IMPALA-12654: Add query option QUERY_CPU_COUNT_DIVISOR
IMPALA-11604 adds a hidden backend flag named query_cpu_count_divisor to
allow oversubscribing CPU cores more than what is available in the
executor group set. This patch adds a query option with the same name
and function so that CPU core matching can be tuned for individual
queries. The query option takes precedence over the flag.
Testing:
- Add test case in test_executor_groups.py and query-options-test.cc
Change-Id: I34ab47bd67509a02790c3caedb3fde4d1b6eaa78
Reviewed-on: http://gerrit.cloudera.org:8080/20819
Reviewed-by: Impala Public Jenkins <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
> Turn query_cpu_count_divisor flag into a query option
> -----------------------------------------------------
>
> Key: IMPALA-12654
> URL: https://issues.apache.org/jira/browse/IMPALA-12654
> Project: IMPALA
> Issue Type: Improvement
> Components: Frontend
> Affects Versions: Impala 4.3.0
> Reporter: Riza Suminto
> Assignee: Riza Suminto
> Priority: Major
>
> IMPALA-11604 add hidden backend flag named query_cpu_count_divisor to allow
> oversubscribing CPU cores more than what is available in executor group set.
> It is better to turn this backend flag into query option so that it can be
> tuned for individual query.
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