[ 
https://issues.apache.org/jira/browse/CASSANDRA-531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12790323#action_12790323
 ] 

Jonathan Ellis commented on CASSANDRA-531:
------------------------------------------

because of how compaction works (see CASSANDRA-604 for how this can get tricky) 
we will want to add an option to disable compactions on a per-CF basis if we're 
going to allow time-based truncation (and i think we should, the efficiency win 
is enormous for models that need it)

> truncate support
> ----------------
>
>                 Key: CASSANDRA-531
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-531
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Chris Goffinet
>            Priority: Minor
>             Fix For: 0.9
>
>         Attachments: 0001-CASSANDRA-531-add-truncate-truncateBefore.txt, 
> 0002-add-unimplemented-truncate-to-thrift-API.txt
>
>
> Sometimes you want to delete an entire columnfamily.  If there is a lot of 
> data, it's much faster to just insert something to the commitlog saying 
> "truncated," and drop the memtable and data files.
> Probably should require this to block for all replicas to ack to avoid 
> unpleasant surprises.  Or make it local-only and have ops manage making sure 
> it gets to all replicas.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.

Reply via email to