The mechanics for it are simple compared to figuring out when to scale, especially when you want to be scaling before peak load on your cluster (adding and removing nodes puts additional load on your cluster).
We are currently building our own in-house solution for this for our customers. If you want to have a go at it yourself, this is a good starting point: http://techblog.netflix.com/2013/11/scryer-netflixs-predictive-auto-scaling.html http://techblog.netflix.com/2013/12/scryer-netflixs-predictive-auto-scaling.html Most of this is fairly specific to Netflix, but an interesting read nonetheless. Datastax OpsCenter also provides capacity planning and forecasting and can provide an easy set of metrics you can make your scaling decisions on. http://www.datastax.com/what-we-offer/products-services/datastax-opscenter Ben Bromhead Instaclustr | www.instaclustr.com | @instaclustr | +61 415 936 359 On 21/05/2014, at 7:51 AM, James Horey <j...@opencore.io> wrote: > If you're interested and/or need some Cassandra docker images let me know > I'll shoot you a link. > > James > > Sent from my iPhone > > On May 21, 2014, at 10:19 AM, Jabbar Azam <aja...@gmail.com> wrote: > >> That sounds interesting. I was thinking of using coreos with docker >> containers for the business logic, frontend and Cassandra. I'll also have a >> look at cassandra-mesos >> >> Thanks >> >> Jabbar Azam >> >> On 21 May 2014 14:04, "Panagiotis Garefalakis" <panga...@gmail.com> wrote: >> I agree with Prem, but recently a guy send this promising project called >> Mesos in this list. >> https://github.com/mesosphere/cassandra-mesos >> One of its goals is to make scaling easier. >> I don’t have any personal opinion yet but maybe you could give it a try. >> >> Regards, >> Panagiotis >> >> >> >> On Wed, May 21, 2014 at 3:49 PM, Jabbar Azam <aja...@gmail.com> wrote: >> Hello Prem, >> >> I'm trying to find out whether people are autoscaling up and down >> automatically, not manually. I'm also interested in whether they are using a >> cloud based solution and creating and destroying instances. >> >> I've found the following regarding GCE >> https://cloud.google.com/developers/articles/auto-scaling-on-the-google-cloud-platform >> and how instances can be created and destroyed. >> >> I >> >> >> Thanks >> >> Jabbar Azam >> >> >> On 21 May 2014 13:09, Prem Yadav <ipremya...@gmail.com> wrote: >> Hi Jabbar, >> with vnodes, scaling up should not be a problem. You could just add a >> machines with the cluster/seed/datacenter conf and it should join the >> cluster. >> Scaling down has to be manual where you drain the node and decommission it. >> >> thanks, >> Prem >> >> >> >> On Wed, May 21, 2014 at 12:35 PM, Jabbar Azam <aja...@gmail.com> wrote: >> Hello, >> >> Has anybody got a cassandra cluster which autoscales depending on load or >> times of the day? >> >> I've seen the documentation on the datastax website and that only mentioned >> adding and removing nodes, unless I've missed something. >> >> I want to know how to do this for the google compute engine. This isn't for >> a production system but a test system(multiple nodes) where I want to learn. >> I'm not sure how to check the performance of the cluster, whether I use one >> performance metric or a mix of performance metrics and then invoke a script >> to add or remove nodes from the cluster. >> >> I'd be interested to know whether people out there are autoscaling cassandra >> on demand. >> >> Thanks >> >> Jabbar Azam >> >> >>
