No argument there. Thanks for explaining what you were doing to encrypt client traffic!
On Mon, Jan 23, 2012 at 10:11 PM, Chris Marino <ch...@vcider.com> wrote: > Hi Jonathan, yes, when I say 'node encryption' I mean inter-Cassandra node > encryption. When I say 'client encryption' I mean encrypted traffic from the > Cassandra nodes to the clients. For these benchmarks we used the stress test > client load generator. > > We ran test with no encryption, then with 'node only' and then again with > both node and client encryption. > > Looking at the post again right now I realize that I never mention the > client encryption technique. My mistake. We just used OpenVPN. We set it > up on the client stress test machine and set up individual VPNs to each > Cassandra node in the cluster. > > I tired to make it clear in my post where the performance gains > were coming from. Didn't mean to confuse anyone. That said, if you're > running in a public cloud and you want to encrypt, you've got to tackle the > client traffic encryption problem as well so it seemed like performance > gains that most could expect. > > CM > > > On Mon, Jan 23, 2012 at 7:46 PM, Jonathan Ellis <jbel...@gmail.com> wrote: >> >> Can you elaborate on to what exactly you were testing on the Cassandra >> side? It sounds like what this post refers to as "node" encryption >> corresponds to enabling "internode_encryption: all", but I couldn't >> guess what your client encryption is since Cassandra doesn't support >> that out of the box yet. (Which is highly relevant since that's where >> most of the slowdown you observed comes from.) >> >> On Fri, Dec 30, 2011 at 2:11 PM, Chris Marino <ch...@vcider.com> wrote: >> > We did some benchmarking as well. >> > >> > >> > http://blog.vcider.com/2011/09/virtual-networks-can-run-cassandra-up-to-60-faster/ >> > >> > Although we were primarily interested in the networking issues.... >> > >> > CM >> > >> > >> > On Fri, Dec 30, 2011 at 12:08 PM, Jeremy Hanna >> > <jeremy.hanna1...@gmail.com> >> > wrote: >> >> >> >> This might be helpful: >> >> >> >> http://techblog.netflix.com/2011/11/benchmarking-cassandra-scalability-on.html >> >> >> >> On Dec 30, 2011, at 1:59 PM, Dom Wong wrote: >> >> >> >> > Hi, could anyone tell me whether this is possible with Cassandra >> >> > using >> >> > an appropriately sized EC2 cluster. >> >> > >> >> > 100,000 clients writing 50k each to their own specific row at 5 >> >> > second >> >> > intervals? >> >> >> > >> >> >> >> -- >> Jonathan Ellis >> Project Chair, Apache Cassandra >> co-founder of DataStax, the source for professional Cassandra support >> http://www.datastax.com > > -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
