Re: Should replica placement change after a topology change?

2015-09-16 Thread Richard Dawe
Hi Rob, On 11/09/2015 18:27, "Robert Coli" mailto:rc...@eventbrite.com>> wrote: On Fri, Sep 11, 2015 at 7:24 AM, Richard Dawe mailto:rich.d...@messagesystems.com>> wrote: Thanks, Nate and Rob. We are going to have to migrate some installations from SimpleSnitch t

Re: Should replica placement change after a topology change?

2015-09-11 Thread Richard Dawe
Thanks, Nate and Rob. We are going to have to migrate some installations from SimpleSnitch to Ec2Snitch, others to GossipingPropertyFileSnitch. Your help is much appreciated! Best regards, Rich On 10/09/2015 20:33, "Nate McCall" mailto:n...@thelastpickle.com>> wrote: So if you have a topolog

Re: Should replica placement change after a topology change?

2015-09-10 Thread Richard Dawe
Hi Robert, Firstly, thank you very much for you help. I have some comments inline below. On 10/09/2015 01:26, "Robert Coli" mailto:rc...@eventbrite.com>> wrote: On Wed, Sep 9, 2015 at 7:52 AM, Richard Dawe mailto:rich.d...@messagesystems.com>> wrote: I am investig

Should replica placement change after a topology change?

2015-09-09 Thread Richard Dawe
Good afternoon, I am investigating various topology changes, and their effect on replica placement. As far as I can tell, replica placement is not changing after I’ve changed the topology and run nodetool repair + cleanup. I followed the procedure described at http://docs.datastax.com/en/cassa

Re: Schema changes: where in Java code are they sent?

2015-02-25 Thread Richard Dawe
; wrote: On Thu, Jan 15, 2015 at 6:30 AM, Richard Dawe mailto:rich.d...@messagesystems.com>> wrote: I thought it might be quorum consistency level, because of the because I was seeing with cqlsh. I was testing with ccm with C* 2.0.8, 3 nodes, vnodes enabled ("ccm create test -v 2.0.8 -

Re: Schema changes: where in Java code are they sent?

2015-01-15 Thread Richard Dawe
Hi Tyler, Thank you for your quick reply; follow-up inline below. On 14/01/2015 19:36, "Tyler Hobbs" mailto:ty...@datastax.com>> wrote: On Wed, Jan 14, 2015 at 5:13 PM, Richard Dawe mailto:rich.d...@messagesystems.com>> wrote: I’ve been trying to find the Java code wher

Schema changes: where in Java code are they sent?

2015-01-14 Thread Richard Dawe
Hello, I’m doing some research on schema migrations for Cassandra. I’ve been playing with cqlsh with TRACING ON, and I can see that a schema change like “CREATE TABLE” is sent to all nodes in the cluster. And also that “CREATE TABLE” fails if only one of my three nodes is up (with replication