> > Because RAM is expensive and the JVM heap is limited to 8gb. While you do > get benefit out of using extra RAM as page cache, it's often not cost > efficient to do so
Again, this is so use-case dependent. I have met several people that run small nodes with fat ram to get it all in memory to serve things in as few milliseconds as possible. This is a very common pattern in ad-tech where every millisecond counts. The tunable consistency and cross-datacenter replication make Cassandra very appealing as it is difficult to set this up with other DBs. On Tue, Sep 9, 2014 at 2:12 PM, Robert Coli <rc...@eventbrite.com> wrote: > On Tue, Sep 9, 2014 at 1:07 PM, Rahul Neelakantan <ra...@rahul.be> wrote: > >> Why not more than 32gb of RAM/node? >> > > Because RAM is expensive and the JVM heap is limited to 8gb. While you do > get benefit out of using extra RAM as page cache, it's often not cost > efficient to do so. > > =Rob > >
