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https://issues.apache.org/jira/browse/KUDU-3463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17712214#comment-17712214
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Weizisheng commented on KUDU-3463:
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[~zhangyifan27] thanks for reply. Actually it's weired that kudu master keep
deleted table and tablet metadata in memory or even in the disk.
[Kudu disk
usage|https://kudu.apache.org/docs/troubleshooting.html#disk_space_usage] says
kudu uses sparse file to store data, which i think that kudu master removes
deleted table info from the disk...
Anyway i'll have a look on KUDU-3344
> 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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