Hi Robert, We downgraded to 2.1.1, but got the very same result. The read latency is still high, but we figured out that it happens only using a specific keyspace. Please see the graphs below...
Trying another keyspace with 600+ reads/sec, we are getting the acceptable ~30ms read latency. Let me know if I need to provide more information. Thanks, Roni Balthazar On Thu, Jan 8, 2015 at 5:23 PM, Robert Coli <rc...@eventbrite.com> wrote: > On Thu, Jan 8, 2015 at 11:14 AM, Roni Balthazar <ronibaltha...@gmail.com> > wrote: > >> We are using C* 2.1.2 with 2 DCs. 30 nodes DC1 and 10 nodes DC2. >> > > https://engineering.eventbrite.com/what-version-of-cassandra-should-i-run/ > > 2.1.2 in particular is known to have significant issues. You'd be better > off running 2.1.1 ... > > =Rob > >