Re: EC2 Snitch load imbalance

2014-10-28 Thread Robert Coli
On Tue, Oct 28, 2014 at 3:35 AM, Oleg Dulin wrote: > I have a setup with 6 cassandra nodes (1.2.18), using RandomPartition, not > using vnodes -- this is a legacy cluster. > > We went from 3 nodes to 6 in the last few days to add capacity. However, > there appears to be an imbalance: > The first

Re: EC2 Snitch load imbalance

2014-10-28 Thread Oleg Dulin
Thanks Mark. The output in my original post is with keyspace specified. On 2014-10-28 12:00:15 +, Mark Reddy said: Oleg,  If you are running nodetool status, be sure to specify the keyspace also. If you don't specify the keyspace the results will be nonsense. https://issues.apache.org/

Re: EC2 Snitch load imbalance

2014-10-28 Thread Mark Reddy
Oleg, If you are running nodetool status, be sure to specify the keyspace also. If you don't specify the keyspace the results will be nonsense. https://issues.apache.org/jira/browse/CASSANDRA-7173 Regards, Mark On 28 October 2014 10:35, Oleg Dulin wrote: > I have a setup with 6 cassandra nod

EC2 Snitch load imbalance

2014-10-28 Thread Oleg Dulin
I have a setup with 6 cassandra nodes (1.2.18), using RandomPartition, not using vnodes -- this is a legacy cluster. We went from 3 nodes to 6 in the last few days to add capacity. However, there appears to be an imbalance: Datacenter: us-east == Replicas: 2 Address Rack

Re: Ec2 snitch with network topology strategy

2011-06-29 Thread pankaj soni
Hmm... Just tested the config. It works, got confused with the options, my bad. On Wed, Jun 29, 2011 at 2:26 PM, pankajsoni0126 wrote: > I was thinking of leveraging ec2 snitch. But my question is then how do I > give replica placement options? > > Or can I give snitch as ec2snitch a

Ec2 snitch with network topology strategy

2011-06-29 Thread pankajsoni0126
I was thinking of leveraging ec2 snitch. But my question is then how do I give replica placement options? Or can I give snitch as ec2snitch and write the nodes cassandra-topology.prop and in give locator strategy at time of creating keyspace as network topology strategy. But will it work? And

Re: EC2 Snitch

2011-05-11 Thread Vijay
DC and RAC only thing is that we have to allow IP's in the security groups to talk to each other's region. Regards, On Tue, May 10, 2011 at 6:19 PM, Sameer Farooqui wrote: > Has anybody successfully used EC2 Snitch for cross-region deployments on > EC2? Brandon Williams has

EC2 Snitch

2011-05-10 Thread Sameer Farooqui
Has anybody successfully used EC2 Snitch for cross-region deployments on EC2? Brandon Williams has not recommended using this just yet, but I was curious if anybody is using it with 0.8.0. Also, the snitch just let's the cluster automatically discover what the different regions (aka data ce

Re: Cassandra Chef recipe and EC2 snitch

2010-07-25 Thread Benjamin Black
the link mentions an ec2snitch, but i don't. the cookbook can just generate property files for the propertysnitch (which i much prefer to the use of a dedicated snitch). the algorithm for decided locality is at least as dumb as the one in the rack-aware snitch. on the plus side, it's just a litt

Re: Cassandra Chef recipe and EC2 snitch

2010-07-22 Thread Dave Viner
You don't need the ec2snitch necessarily. AFAIK, It's meant to be a "better" way of detecting where your ec2 instances are. But, unless you're popping instances all the time, I don't think it's worth it. Check out the step-by-step guide on that same page. Pure EC2 api calls to setup your cluste

Cassandra Chef recipe and EC2 snitch

2010-07-22 Thread Allan Carroll
Hi all, I'm setting up a new cluster on EC2 for the first time and looking at the wiki cloud setup page (http://wiki.apache.org/cassandra/CloudConfig). There's a chef recipe linked there that mentions an ec2snitch. The link doesn't seem to go where it says it does. Does anyone know where those