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Posted to issues@kudu.apache.org by "Weizisheng (Jira)" <ji...@apache.org> on 2023/04/14 02:59:00 UTC

[jira] [Commented] (KUDU-3463) KuduMaster leader consumes too much memory

    [ https://issues.apache.org/jira/browse/KUDU-3463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17712169#comment-17712169 ] 

Weizisheng commented on KUDU-3463:
----------------------------------

Reproduced: 

creating & deleting table continuously, the leader memory usage grows from xxMB to xGB, and it will continues to grow...

kill the leader, another one becomes leader and it;s memory usage becomes instantly grows to xGB, most of it's memory usage is consumed in TableLoader.VisitTable   and   TabletLoader.VisitTablet

I'm wondering it's the normal impl  or memory leak..

> KuduMaster leader consumes too much memory
> ------------------------------------------
>
>                 Key: KUDU-3463
>                 URL: https://issues.apache.org/jira/browse/KUDU-3463
>             Project: Kudu
>          Issue Type: Bug
>    Affects Versions: 1.12.0
>            Reporter: Weizisheng
>            Priority: Major
>         Attachments: heap321.txt
>
>
> We rarely face a suspected memory leak on a cluster with 3-master and 4-tserver, 800 tables and 3000 tablets. Leader master consume 50GB memory while the other two only take one tenth of it ...
> From the last 5 days, leader's memory usage grows 3%+
> attachment pprof heap
>  



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