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Posted to issues-all@impala.apache.org by "Tim Armstrong (JIRA)" <ji...@apache.org> on 2019/03/06 23:10:00 UTC
[jira] [Resolved] (IMPALA-8223) Remove mem-pool.total-bytes and
hash-table.total-bytes metrics
[ https://issues.apache.org/jira/browse/IMPALA-8223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tim Armstrong resolved IMPALA-8223.
-----------------------------------
Resolution: Fixed
Fix Version/s: Impala 3.2.0
> Remove mem-pool.total-bytes and hash-table.total-bytes metrics
> --------------------------------------------------------------
>
> Key: IMPALA-8223
> URL: https://issues.apache.org/jira/browse/IMPALA-8223
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Reporter: Tim Armstrong
> Assignee: Tim Armstrong
> Priority: Major
> Fix For: Impala 3.2.0
>
>
> I think we should remove these metrics - I'm not aware of a use case for them and I haven't seen them be of use since I've been working on Impala's memory management. Generally memory consumption is only interesting when broken down by query.
> The hash-table metric is also wrong since it doesn't include the actual hash table buckets.
> The description of the mem-pool metric is totally wrong - "The current size of the memory pool shared by all queries".
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