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Posted to issues@impala.apache.org by "Zoltán Borók-Nagy (Jira)" <ji...@apache.org> on 2023/02/03 10:24:00 UTC

[jira] [Created] (IMPALA-11896) Limit scratch_limit that users can specify

Zoltán Borók-Nagy created IMPALA-11896:
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             Summary: Limit scratch_limit that users can specify
                 Key: IMPALA-11896
                 URL: https://issues.apache.org/jira/browse/IMPALA-11896
             Project: IMPALA
          Issue Type: New Feature
          Components: Backend
            Reporter: Zoltán Borók-Nagy


Currently users can specify arbitrarily big scratch_limit values. Moreover, setting scratch_limit to -1 means Impala can use unlimited scratch space.

With IMPALA-8376 it's possible to specify limits on the scrach directories. But this doesn't prevent users to try to use all the available scratch capacity.

We could add a startup flag 'max_scratch_limit' that would cap the scratch limit specified by the users.



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