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From "Dikang Gu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-13019) Improve clearsnapshot command to delete the snapshot files slowly.
Date Thu, 08 Dec 2016 07:01:08 GMT
Dikang Gu created CASSANDRA-13019:
-------------------------------------

             Summary: 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
            Reporter: Dikang Gu
            Assignee: Dikang Gu
             Fix For: 3.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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