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https://issues.apache.org/jira/browse/CASSANDRA-15403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16969311#comment-16969311
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Jeff Jirsa commented on CASSANDRA-15403:
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Yep, I'll dupe this to that. The throttle needs to be on both create and 
remove, though. Also I have a patch I'll post shortly.


> Throttle sstable hardlink creation/removal
> ------------------------------------------
>
>                 Key: CASSANDRA-15403
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15403
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Local/SSTable
>            Reporter: Jeff Jirsa
>            Assignee: Jeff Jirsa
>            Priority: Normal
>             Fix For: 4.x
>
>
> When there are tens of thousands of sstables, the snapshot and clear snapshot 
> operations can impact performance of the database itself. Adding a rate 
> limiter to the snapshot creation and deletion paths can improve response times



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