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https://issues.apache.org/jira/browse/IMPALA-8731?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17705134#comment-17705134
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ASF subversion and git services commented on IMPALA-8731:
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Commit 35fe1f37f5656e615466504129c7550089f1773d in impala's branch
refs/heads/master from zhangyifan27
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=35fe1f37f ]
IMPALA-8731: Balance queries across multiple executor groups
This patch adds a new admission control policy that attempts to
balance queries across multiple executor groups belonging to the
same request pool based on available memory and slots in each
executor group. This feature can be enabled by setting the startup
flag '-balance_queries_across_executor_groups=true'. The setting is
off by default.
Testing:
- Add e2e tests to verify the default policy and the new policy.
Change-Id: I25e851fb57c1d820c25cef5316f4ed800e4c6ac5
Reviewed-on: http://gerrit.cloudera.org:8080/19630
Tested-by: Impala Public Jenkins <[email protected]>
Reviewed-by: Riza Suminto <[email protected]>
Reviewed-by: Wenzhe Zhou <[email protected]>
> Balance queries between executor groups
> ---------------------------------------
>
> Key: IMPALA-8731
> URL: https://issues.apache.org/jira/browse/IMPALA-8731
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Affects Versions: Impala 3.3.0
> Reporter: Lars Volker
> Assignee: YifanZhang
> Priority: Major
> Labels: admission-control, scalability
>
> After IMPALA-8484, we should revisit the assignment policy that we use to
> distribute queries to executor groups. In particular we should implement a
> policy that balances queries across executor groups instead of filling them
> up one by one.
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