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Posted to issues-all@impala.apache.org by "Joe McDonnell (Jira)" <ji...@apache.org> on 2026/10/20 01:14:00 UTC

[jira] [Resolved] (IMPALA-15587) Detect number of CPU cores that Impala can actually run on

     [ https://issues.apache.org/jira/browse/IMPALA-15587?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joe McDonnell resolved IMPALA-15587.
------------------------------------
    Fix Version/s: Not Applicable
       Resolution: Duplicate

> Detect number of CPU cores that Impala can actually run on
> ----------------------------------------------------------
>
>                 Key: IMPALA-15587
>                 URL: https://issues.apache.org/jira/browse/IMPALA-15587
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Backend
>    Affects Versions: Impala 5.0.0
>            Reporter: Joe McDonnell
>            Priority: Major
>             Fix For: Not Applicable
>
>
> With taskset and other tools, Impalas can be bound to specific cores. The current logic in cpu-info.cc does not detect this, but this would be useful to know for diagnostics and running the right number of threads. We can get this information using sched_getaffinity().



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