Re: Deployment on AWS and replication strategies

2010-04-04 Thread Benjamin Black
On Sat, Apr 3, 2010 at 8:23 PM, Mike Gallamore mike.e.gallam...@googlemail.com wrote: I didn't mean a real time determination, more of if the nodes aren't identical. For example if you have a cluster made up of a bunch of EC2 light instances and decide to add a large instance, it would be

Re: Deployment on AWS

2010-04-04 Thread Michael Russo
On 2010-04-04, at 10:18 PM, Masood Mortazavi wrote: (My question remains. I'm interested in seed configuration practice/recipe when deploying on AWS. In the scenario, assume Cassandra sits behind some other part of the service -- say, web container -- that are then exposed publicly.

Re: Deployment on AWS

2010-04-03 Thread Peter Chang
Woot. Ver much looking forward to this stuff Joe. On Sat, Apr 3, 2010 at 10:14 AM, Joe Stump j...@joestump.net wrote: On Apr 2, 2010, at 4:49 PM, Masood Mortazavi wrote: Is there a ready recipe for deploying a Cassandra cluster in AWS? ... (Seeds need some fixed IP addresses.) We have a

Re: Deployment on AWS

2010-04-03 Thread Joe Stump
On Apr 3, 2010, at 1:53 PM, Benjamin Black wrote: What specific features are you looking for to operate on EC2? It seemed people weren't looking for features, but tools to help with the management. The two things we've created that people might be interested in are: 1. An EC2-specific

Re: Deployment on AWS

2010-04-03 Thread Benjamin Black
I'm pretty familiar with EC2, hence the question. I don't believe any patches are required to do these things. Regardless, as I noted in that ticket, you definitely do NOT need AWS credentials to determine your availability zone. It is available through the metadata web server for each instance

Re: Deployment on AWS

2010-04-03 Thread Joe Stump
On Apr 3, 2010, at 2:54 PM, Benjamin Black wrote: I'm pretty familiar with EC2, hence the question. I don't believe any patches are required to do these things. Regardless, as I noted in that ticket, you definitely do NOT need AWS credentials to determine your availability zone. It is

Re: Deployment on AWS and replication strategies

2010-04-03 Thread Mike Gallamore
Hi everyone, At my work we are in the early stages of moving our data which lives on EC2 machines from a Flare/memcache system to Cassandra so your chat has been interesting to me. I realize that this might complicate things and make things less simple but would it be useful for the nodes

Re: Deployment on AWS

2010-04-03 Thread Benjamin Black
Right, you determine AZ by looking at the metadata. us-east-1a is a different AZ from us-east-1b. You can't infer anything beyond that, either with the AWS API or guesses about IP addressing. My EC2 snitch recipe builds a config file for the property snitch that treats AZs like racks (just