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From Edward Capriolo <edlinuxg...@gmail.com>
Subject Re: How to delete bulk data from cassandra 0.6.3
Date Sat, 05 Feb 2011 17:01:39 GMT
On Sat, Feb 5, 2011 at 11:35 AM, Ali Ahsan <ali.ahsan@panasiangroup.com> wrote:
> Thanks for replying Edward Capriolo.Will this effect cassandra ring
>  integrity? Another question is that will cassandra work properly after this
> operation.And will it be possible to restore deleted  data from backup?.
>
>> in 0.6.X
>> pkill `pid of cassandra`
>> rm -rf * /var/lib/cassandra/data/<keyspace>/<CF you want to delete>*
>> (start cassandra)
>>
>>
>
>
> --
> S.Ali Ahsan
>
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I am not sure what you mean by data integrity.

In short, when Cassandra starts up it searches it's data directories
and loads up the data, index, bloom filters, and saved caches it
finds.

Unless the files are corrupt it will happily load up what it finds.

Restores are done by the process your described , stop server, restore
files, start server.

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