Dou you mean to delete the files physically on the disk for this CF after the flush of course will be ok but will need a restart for each server in the cluster ?
 

On Fri, Nov 6, 2009 at 7:18 PM, Michael Greene <michael.greene@gmail.com> wrote:
`nodeprobe flush` is just to make sure you don't have data in the
commitlog for the column families.  The deletion of the appropriate
data files is the actual erasure.  As long as you only delete the db
files for the column family you want to remove, you will be fine.

Michael

On Fri, Nov 6, 2009 at 11:14 AM, Richard grossman <richiesgr@gmail.com> wrote:
> Thanks for fast answer,
> The problem is that I need to remove only 1 column family in the keystore is
> the nodeproble flush don't erase all the column families ?
>
> I'll enjoy to work on any task that can help the community and help me to
> better understand cassandra
>
> Thanks
>
> On Fri, Nov 6, 2009 at 7:05 PM, Jonathan Ellis <jbellis@gmail.com> wrote:
>>
>> nodeprobe flush (requires 0.4.2), remove the data files, restart.
>>
>> it would be nice to make this more user-friendly (and not require
>> restart): https://issues.apache.org/jira/browse/CASSANDRA-531
>>
>> if you'd like to work on this let me know, I can point you in the
>> right direction.
>>
>> On Fri, Nov 6, 2009 at 10:55 AM, Richard grossman <richiesgr@gmail.com>
>> wrote:
>> > Hi
>> >
>> > I need to delete large amount of data at each update ~3000000 rows (the
>> > entire ColumnFamily in fact) is there any solution to make faster than
>> > just
>> > calling the delete API.
>> >
>> > Thanks
>> >
>> > Richard
>
>