[clickhouse]- RSS memory keep on growing till 80GB out of 128GB RAM and dropped suddenly once in 24 hours

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Csingh Singh

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Apr 30, 2021, 11:30:42 AMApr 30
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Hi

I am facing a strange issue where within 24 hours RSS memory reach upto 80 GB of total 128GB RAM, then it dropped suddenly after 20-24 hrs. Again it start increasing same thing happens daily from last 10 days.

Any help will be appreciated.

Denis Zhuravlev

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Apr 30, 2021, 11:54:37 PMApr 30
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Clickhouse version?

grep Peak /var/log/clickhouse-server/clickhouse-server.log

Csingh Singh

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May 2, 2021, 12:34:29 PMMay 2
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Hi
Asynchronous metrics attached
Clickhouse version: 20.6.3.28
Peak memory usages from 0 to 300MiB

Thanks
Chandra

Csingh Singh

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May 3, 2021, 11:30:11 AMMay 3
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Any suggestion pls, Will later version of CH help in this case?

Denis Zhuravlev

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May 4, 2021, 8:02:24 PMMay 4
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Anyway 20.6.3 is out of support. Try to reproduce it with at least 20.8.18

Csingh Singh

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May 8, 2021, 4:33:49 AMMay 8
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Just a little background present here. The issue is not reproducible at other system, Getting at one particular deployment

jemalloc.resident is increasing upto 70GB in CH-20.6.3.28 , Is it memory leak? Do we have any fixes for it?
https://stackoverflow.com/q/67437609/15747638?sem=2


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