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Posted to issues-all@impala.apache.org by "Tim Armstrong (JIRA)" <ji...@apache.org> on 2018/09/25 06:20:00 UTC

[jira] [Updated] (IMPALA-6656) Metrics for time spent in BufferAllocator

     [ https://issues.apache.org/jira/browse/IMPALA-6656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong updated IMPALA-6656:
----------------------------------
    Target Version: Impala 3.2.0  (was: Impala 3.1.0)

> Metrics for time spent in BufferAllocator
> -----------------------------------------
>
>                 Key: IMPALA-6656
>                 URL: https://issues.apache.org/jira/browse/IMPALA-6656
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Backend
>            Reporter: Tim Armstrong
>            Assignee: Tim Armstrong
>            Priority: Major
>              Labels: observability, resource-management
>
> We should track the total time spent and the time spent in TCMalloc so we can understand where time is going globally. 
> I think we should shard these metrics across the arenas so we can see if the problem is just per-arena, and also to avoid contention between threads when updating the metrics.



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