[jira] [Created] (IMPALA-7357) Consider lowering statestore update frequency further or adding jitter to admission controller

["Tim Armstrong (JIRA)" <ji...@apache.org>]

Tim Armstrong created IMPALA-7357:
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             Summary: Consider lowering statestore update frequency further or adding jitter to admission controller
                 Key: IMPALA-7357
                 URL: https://issues.apache.org/jira/browse/IMPALA-7357
             Project: IMPALA
          Issue Type: Improvement
          Components: Backend
            Reporter: Tim Armstrong


We could consider reducing the update frequency further (maybe just for coordinators??) and possibly adding some jitter to the admission process to prevent overadmission when multiple queries are submitted at the same time to different coordinators. 

The problem is that the coordinators independently make admission decisions before the change in state from previous decisions is propagated to other coordinators.



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