Nice to hear, 150 nodes is quite a lot. I have another question on the topic: I've read that most of the data in facebook is stored as key=>value -pairs which are cached to memcached layer and then stored to mysql as simple key-value -pairs for persistence (so no relations in mysql). Are you still doing this, or have you switched to store the key-value -pairs in cassandra instead of mysql? What else are you storing in cassandra than just the inbox search?
- Juho Mäkinen On Tue, Jul 6, 2010 at 10:01 PM, Prashant Malik <pma...@gmail.com> wrote: > This is a ridiculous statement by some newbie I guess , We today have a 150 > node Cassandra cluster running Inbox search supporting close to 500M users > and over 150TB of data growing rapidly everyday. > > I am on pager for this monster :) so its pretty funny to hear this > statement. > > - Prashant > > On Tue, Jul 6, 2010 at 6:21 AM, Avinash Lakshman > <avinash.laksh...@gmail.com> wrote: >> >> FB Inbox Search still runs on Cassandra and will continue to do so. I >> should know since I maintain it :). >> >> Cheers >> Avinash >> >> On Tue, Jul 6, 2010 at 3:34 AM, David Strauss <da...@fourkitchens.com> >> wrote: >>> >>> On 2010-07-05 15:40, Eric Evans wrote: >>> > On Sun, 2010-07-04 at 13:14 +0100, Bill de hÓra wrote: >>> >> This person's understanding is that Facebook 'no longer contributes to >>> >> nor uses Cassandra.': >>> >> >>> >> http://redmonk.com/sogrady/2010/05/17/beyond-cassandra/ >>> > >>> > Last I heard, Facebook was still using Cassandra for what they had >>> > always used it for, Inbox Search. Last I heard, there were no plans in >>> > place to change that. >>> >>> I had the opportunity to talk with some Facebook infrastructure >>> engineers in San Francisco over the past few weeks. They are no longer >>> using Cassandra, even for inbox search. >>> >>> Inbox search was intended to be an initial push for using Cassandra more >>> broadly, not the primary target of the Cassandra design. Unfortunately, >>> Facebook's engineers later decided that Cassandra wasn't the right >>> answer to the right question for Facebook's purposes. >>> >>> That decision isn't an indictment of Cassandra's capability; it's >>> confirmation that Cassandra isn't everything to everyone. But we already >>> knew that. :-) >>> >>> -- >>> David Strauss >>> | da...@fourkitchens.com >>> | +1 512 577 5827 [mobile] >>> Four Kitchens >>> | http://fourkitchens.com >>> | +1 512 454 6659 [office] >>> | +1 512 870 8453 [direct] >>> >> > >
