Thanks all for your responses. We've downgraded from 2.0.3 to 2.0.0 and everything became normal.
2013/12/8 Nate McCall <n...@thelastpickle.com> > If you are really set on using Cassandra as a cache, I would recommend > disabling durable writes for the keyspace(s)[0]. This will bypass the > commitlog (the flushing/rotation of which my be a good-sized portion of > your performance problems given the number of tables). > > [0] > http://www.datastax.com/documentation/cql/3.0/webhelp/index.html#cql/cql_reference/alter_keyspace_r.html > > > On Fri, Dec 6, 2013 at 12:42 PM, J. Ryan Earl <o...@jryanearl.us> wrote: > >> On Thu, Dec 5, 2013 at 6:33 AM, Alexander Shutyaev <shuty...@gmail.com>wrote: >> >>> We've plugged it into our production environment as a cache in front of >>> postgres. Everything worked fine, we even stressed it by explicitly >>> propagating about 30G (10G/node) data from postgres to cassandra. >>> >> >> If you just want a caching layer, why wouldn't you use Memcached or Redis >> instead? Cassandra is designed to be a persist store and not so much >> designed as caching layer. If you were replacing your use of Postgres >> completely, that would be appropriate. >> > > > > -- > ----------------- > Nate McCall > Austin, TX > @zznate > > Co-Founder & Sr. Technical Consultant > Apache Cassandra Consulting > http://www.thelastpickle.com >