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Posted to commits@cassandra.apache.org by "maxwellguo (JIRA)" <ji...@apache.org> on 2019/07/01 03:30:00 UTC
[jira] [Commented] (CASSANDRA-13019) Improve clearsnapshot command
to delete the snapshot files slowly.
[ https://issues.apache.org/jira/browse/CASSANDRA-13019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16875924#comment-16875924 ]
maxwellguo commented on CASSANDRA-13019:
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for me , i think if we add a parameter with slowrm which means do delet file opertion per second which default set to 1. if it is ok ?
> Improve clearsnapshot command 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: maxwellguo
> Priority: Normal
> Fix For: 4.x
>
>
> 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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