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 <s...@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@lists.basho.com
> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com


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