Key Expiry in Riak

Sean Cribbs sean at basho.com
Wed Mar 2 11:57:34 EST 2011


Innostore does not have an expiration option.  In general, you'll want to use bitcask unless your operational requirements specifically call for innostore.

Sean Cribbs <sean at basho.com>
Developer Advocate
Basho Technologies, Inc.
http://basho.com/

On Mar 2, 2011, at 11:53 AM, Tristan Sloughter wrote:

> Is this possible when using innodb? Or would I use innodb for my persistent data and a bitcask backend (like your sessions example) for data I want to expire?
> 
> Thanks,
> Tristan
> 
> On Wed, Mar 2, 2011 at 8:13 AM, Sean Cribbs <sean at basho.com> wrote:
> Abhishek,
> 
> Mostly answered here: https://help.basho.com/entries/466512-how-can-i-automatically-expire-a-key-from-riak
> 
> If you use multi_backend with several bitcask setups you can have both expiring data and normal persistent data. Here's an example of what you might put in app.config (inside the riak_kv section):
> 
> {storage_backend, riak_kv_multi_backend},
> {multi_backend_default, <<"bitcask">>},
> {multi_backend, [
>        {<<"bitcask">>, riak_kv_bitcask_backend, []},
>        {<<"sessions>>, riak_kv_bitcask_backend, [{expiry_secs, 7200}, {data_root, "data/sessions"}]}
> ]},
> 
> The key pieces there is expiry_secs = 7200 (2 hours), and the separate root for the data files.
> 
> Sean Cribbs <sean at basho.com>
> Developer Advocate
> Basho Technologies, Inc.
> http://basho.com/
> 
> 
> P.S. If you haven't seen the Knowledge Base yet, check it out: https://help.basho.com/forums/270314-riak. You can also search the KB from the #riak IRC channel using "!kb <search terms>".
> 
> On Mar 2, 2011, at 8:21 AM, Abhishek Kona wrote:
> 
> > Hi
> >
> > Is it possible to have a expiry (ttl) on RIAK keys per bucket (or per key).
> > Or is there any other way that I am missing.
> >
> > This would be greatly useful for maintaining Session data in RIAK, as expired session data can be auto cleared.
> >
> > -Abhishek Kona
> >
> > _______________________________________________
> > riak-users mailing list
> > riak-users at lists.basho.com
> > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
> 
> 
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