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https://issues.apache.org/jira/browse/CASSANDRA-10588?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jeff Jirsa resolved CASSANDRA-10588.
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Resolution: Won't Fix
This is likely inherent to the design, but even if it's not, there's no
indication it's a bug. After 2 years, without a concrete bug or proposal, I am
closing this as won't-fix. If you believe this is really actionable, please
re-open.
> Large number of tables increases the cpu usage during idle time
> ---------------------------------------------------------------
>
> Key: CASSANDRA-10588
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10588
> Project: Cassandra
> Issue Type: Bug
> Reporter: Xu Zhongxing
> Priority: Minor
>
> When the database is empty, the idle time cpu usage of Cassandra is around
> 2%. But after I created 1500 tables, the cpu usage increases to 10%.
> I checked with top -H and jstack and found two metric-meter-tick threads both
> consumes around 5% cpu.
> If I remove all 1500 tables, the cpu usage decreases.
> Is this a problem or is an inherent design property of Cassandra?
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