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Posted to issues-all@impala.apache.org by "Michael Ho (JIRA)" <ji...@apache.org> on 2019/08/12 21:56:00 UTC
[jira] [Commented] (IMPALA-8712) Convert ExecQueryFInstance() RPC
to become asynchronous
[ https://issues.apache.org/jira/browse/IMPALA-8712?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16905619#comment-16905619 ]
Michael Ho commented on IMPALA-8712:
------------------------------------
Please also see https://issues.apache.org/jira/browse/IMPALA-4475
> Convert ExecQueryFInstance() RPC to become asynchronous
> -------------------------------------------------------
>
> Key: IMPALA-8712
> URL: https://issues.apache.org/jira/browse/IMPALA-8712
> Project: IMPALA
> Issue Type: Sub-task
> Components: Distributed Exec
> Affects Versions: Impala 3.3.0
> Reporter: Michael Ho
> Assignee: Thomas Tauber-Marshall
> Priority: Major
>
> Now that IMPALA-7467 is fixed, ExecQueryFInstance() can utilize the async RPC capabilities of KRPC instead of relying on the half-baked way of using {{ExecEnv::exec_rpc_thread_pool_}} to start query fragment instances. We already have a reactor thread pool in KRPC to handle sending client RPCs asynchronously. Also various tasks under IMPALA-5486 can also benefit from making ExecQueryFInstance() asynchronous so the RPCs can be cancelled.
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