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List:       cassandra-user
Subject:    Re: flushing/clearing an entire ColumnFamily
From:       Jonathan Ellis <jbellis () gmail ! com>
Date:       2009-10-21 18:36:21
Message-ID: e06563880910211136v3172a68bn26621380504c675d () mail ! gmail ! com
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You had the right idea.  Something like "find datadir -name
'*MyCFName*' | xargs rm" would work fine (you'd want to force a flush
first though to clear out whatever's still in the commit log).

-Jonathan

On Wed, Oct 21, 2009 at 11:59 AM, Johannes Schaback
<johannes.schaback@visual-meta.com> wrote:
> um, silly me, there's no data folder for each ColumnFamily of course.
> I am still wondering how to delete entire ColumnFamilies...
>
> On Wed, Oct 21, 2009 at 6:54 PM, Johannes Schaback
> <johannes.schaback@visual-meta.com> wrote:
>> Hi
>>
>> I am currently using a ColumnFamily as an intermediate store for data
>> that is computationally expensive and too large to keep in memory. The
>> data is later composed in a final, long-term ColumnFamily so that I
>> actually dont need the "raw" data to be around anymore. This is why I
>> am wondering if there is an easy way to clear an entire ColumnFamily?
>> I could certainly remove() each row individually, but this may take
>> some time.
>>
>> What if I would just delete the content of the data folder of the
>> ColumnFamily in question? :)
>>
>>
>> Thanks
>>
>> Johannes
>>
>
>
>
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>
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