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Posted to issues@impala.apache.org by "Tim Armstrong (JIRA)" <ji...@apache.org> on 2017/09/15 21:00:05 UTC

[jira] [Resolved] (IMPALA-806) Hbase Scan may be using more memory than is mentioned in the query profile

     [ https://issues.apache.org/jira/browse/IMPALA-806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong resolved IMPALA-806.
----------------------------------
    Resolution: Cannot Reproduce

> Hbase Scan may be using more memory than is mentioned in the query profile
> --------------------------------------------------------------------------
>
>                 Key: IMPALA-806
>                 URL: https://issues.apache.org/jira/browse/IMPALA-806
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Perf Investigation
>    Affects Versions: Impala 1.2.3
>            Reporter: Udai Kiran Potluri
>            Assignee: Alan Choi
>            Priority: Minor
>              Labels: resource-management
>
> Possible memory usage miscalculation when scanning Hbase data. When Cgroup is set to 10GB and mem_limit set to 8GB, the Impala Daemon was killed because the service reached 10GB memory usage. However the peak memory usage per node only showed few hundred KB usage.
> Hbase scan may be using more memory than what is shown in the Query Profile.



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