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Posted to issues@impala.apache.org by "Tim Armstrong (JIRA)" <ji...@apache.org> on 2017/04/17 22:58:41 UTC

[jira] [Created] (IMPALA-5220) Clean up TCMalloc memory maintenance logic

Tim Armstrong created IMPALA-5220:
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             Summary: Clean up TCMalloc memory maintenance logic
                 Key: IMPALA-5220
                 URL: https://issues.apache.org/jira/browse/IMPALA-5220
             Project: IMPALA
          Issue Type: Improvement
          Components: Backend
    Affects Versions: Impala 2.9.0
            Reporter: Tim Armstrong
            Assignee: Tim Armstrong


As mentioned in IMPALA-2800, TCMalloc's default behaviour so that it does not keep unmapped memory around. This means that our various ReleaseMemory()/ReleaseToSystem() calls may not have any effect.

We should verify this and then remove any logic that is no longer needed.



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