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Posted to issues@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2020/05/14 20:23:00 UTC

[jira] [Resolved] (IMPALA-9020) Move scan range queues to fragment-level and do dynamic scheduling within a node

     [ https://issues.apache.org/jira/browse/IMPALA-9020?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong resolved IMPALA-9020.
-----------------------------------
    Resolution: Duplicate

> Move scan range queues to fragment-level and do dynamic scheduling within a node
> --------------------------------------------------------------------------------
>
>                 Key: IMPALA-9020
>                 URL: https://issues.apache.org/jira/browse/IMPALA-9020
>             Project: IMPALA
>          Issue Type: Sub-task
>          Components: Backend
>            Reporter: Tim Armstrong
>            Priority: Major
>
> It would be nice to dynamically load balance scans between finstances on a node. There's no particular reason why we can't do that - the code is already set up, in HDFS, to pull scan ranges out of a queue.
> I think this will be simpler to do once we don't have to support the "old" multithreaded scans, so I'm including this in later cleanup.



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