No we aren't caching 100%, we cache over 20 - 30 million which only starts to get a high hit rate overtime so to have a useful cache can take over a week of running. We would love to store the complete CF in memory but know know of a server that can hold that much data in memory while still being commodity. Our data set is currently over 100GB.
On Fri, Aug 6, 2010 at 5:54 PM, Jonathan Ellis <jbel...@gmail.com> wrote: > are you caching 100% of the CF? > > if not this is not super useful. > > On Fri, Aug 6, 2010 at 7:10 PM, Artie Copeland <yeslinux....@gmail.com> > wrote: > > would it be possible to backport the 0.7 feature, the ability to safe and > > preload row caches after a restart. i think that is a very nice and > > important feature that would help users with very large caches, that take > a > > long time to get the proper hot set. for example we can get pretty good > > cache row cache hits if we run the servers for a month or more as the > data > > tends to settle down. > > -- > > http://yeslinux.org > > http://yestech.org > > > > > > -- > Jonathan Ellis > Project Chair, Apache Cassandra > co-founder of Riptano, the source for professional Cassandra support > http://riptano.com > -- http://yeslinux.org http://yestech.org
