[jira] [Resolved] (CASSANDRA-7127) Add command to reclaim disk space for dropped column families

["Jonathan Ellis (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-7127?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis resolved CASSANDRA-7127.
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    Resolution: Not a Problem

You can set auto_snapshot: false if you want to turn this behavior off entirely; otherwise, nodetool clearsnapshot will allow this post-CASSANDRA-6281

> Add command to reclaim disk space for dropped column families
> -------------------------------------------------------------
>
>                 Key: CASSANDRA-7127
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7127
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Bogdan Batranut
>            Priority: Trivial
>             Fix For: 2.1 beta2
>
>
> I found out that after a DROP a column family's data is not deleted. I looked into the /data/keyspace dir and saw dirs corresponding to old columnfamilies that I have dropped in the past. I do see the benefit of taking snapshots when dropping but I can also see the need to reclaim disk space. During developent on a cluster that will be in production, people might push a lot of data into a columnfamily and change the definition for some reason. The old unused data will eat a lot of space.
> So can you please implement a feature that will reclaim badly used disk space?
> Thank you.



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