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Posted to issues@impala.apache.org by "Joe McDonnell (Jira)" <ji...@apache.org> on 2026/06/09 18:08:00 UTC

[jira] [Resolved] (IMPALA-15021) Remove one of the gperftools tcmalloc thread cache metrics

     [ https://issues.apache.org/jira/browse/IMPALA-15021?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joe McDonnell resolved IMPALA-15021.
------------------------------------
    Fix Version/s: Impala 5.0.0
       Resolution: Fixed

> Remove one of the gperftools tcmalloc thread cache metrics
> ----------------------------------------------------------
>
>                 Key: IMPALA-15021
>                 URL: https://issues.apache.org/jira/browse/IMPALA-15021
>             Project: IMPALA
>          Issue Type: Task
>          Components: Backend
>    Affects Versions: Impala 5.0.0
>            Reporter: Joe McDonnell
>            Assignee: Joe McDonnell
>            Priority: Minor
>             Fix For: Impala 5.0.0
>
>
> In IMPALA-14874, we added additional gperftools TCMalloc metrics. This included both tcmalloc.current-total-thread-cache-bytes and tcmalloc.thread-cache-free-bytes, which map down to the gperftools metrics tcmalloc.current_total_thread_cache_bytes and tcmalloc.thread_cache_free_bytes respectively. Inside the gperftools code, these are actually the same counter, so we can remove one.



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