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https://issues.apache.org/jira/browse/CASSANDRA-13019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16976959#comment-16976959
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Jeff Jirsa commented on CASSANDRA-13019:
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Patch is approved by 3 people in GH PR (Aleksey, Chris, Maxwell)
> Improve clearsnapshot to delete the snapshot files slowly
> ----------------------------------------------------------
>
> Key: CASSANDRA-13019
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13019
> Project: Cassandra
> Issue Type: Improvement
> Components: Legacy/Core
> Reporter: Dikang Gu
> Assignee: Jeff Jirsa
> Priority: Normal
> Labels: pull-request-available
> Fix For: 4.x
>
> Time Spent: 2h 10m
> Remaining Estimate: 0h
>
> In our environment, we are creating snapshots for backup, after we finish the
> backup, we are running {{clearsnapshot}} to delete the snapshot files. At
> that time we may have thousands of files to delete, and it's causing sudden
> disk usage spike. As a result, we are experiencing a spike of drop messages
> from Cassandra.
> I think we should implement something like {{slowrm}} to delete the snapshot
> files slowly, avoid the sudden disk usage spike.
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