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Posted to issues@impala.apache.org by "Lars Volker (JIRA)" <ji...@apache.org> on 2019/04/26 01:36:00 UTC

[jira] [Created] (IMPALA-8461) Re-schedule queries if the executor configuration has changed while queued in AC

Lars Volker created IMPALA-8461:
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             Summary: Re-schedule queries if the executor configuration has changed while queued in AC
                 Key: IMPALA-8461
                 URL: https://issues.apache.org/jira/browse/IMPALA-8461
             Project: IMPALA
          Issue Type: Improvement
          Components: Backend
    Affects Versions: Impala 3.3.0
            Reporter: Lars Volker


If the executor configuration changes while a query is waiting to be admitted, we need to reschedule it. The current behavior tries to run it as is which will then fail. To achieve this, we should call Scheduler::Schedule() from the AdmissionController and then re-schedule if necessary. We need to think about ways to detect changes to the executor configuration, but a simple hash might be good enough.



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