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Posted to issues-all@impala.apache.org by "Michael Smith (Jira)" <ji...@apache.org> on 2025/08/21 22:51:00 UTC

[jira] [Created] (IMPALA-14339) Cancel catalogd requests when query is cancelled

Michael Smith created IMPALA-14339:
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             Summary: Cancel catalogd requests when query is cancelled
                 Key: IMPALA-14339
                 URL: https://issues.apache.org/jira/browse/IMPALA-14339
             Project: IMPALA
          Issue Type: Improvement
          Components: Frontend
    Affects Versions: Impala 5.0.0
            Reporter: Michael Smith


After IMPALA-915, queries can be cancelled during planning. When that happens, any catalog operations started will continue to completion.

Those catalog operations can use significant resources; if the query was cancelled because there's a problem in catalogd, leaving the operation running may lead to an outage in catalogd.

On the other hand, sometimes the operation was doing useful work that will benefit a later query, and we want to leave it running.

It would probably be useful to have a way to cancel catalog operations related to a query or table, but not necessarily do that immediately when the query is cancelled.



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