Thanks Simon, We'll be running https full-time, so we'll have an evaluation period and I'll let you know how we go.
Will you be at WOWODC? -- Matt http://logicsquad.net/ > we had problems with elb, wo and sticky sessions. we now run zeus load > balancers on ec2. > > we never got to the bottom of it, just randomly the session would seem > to loose it's stickyness, head off to another ec2 instance, new > session and login page. > > i suspected it was due to switching between http and https and we > intend to re-trial elb in a few months time because we are moving all > of our apps to full-time https and secure cookies. > > sorry, not much help i know, but just a heads up that we did have > problems. i'd be interested in knowing how you get on... > > simon > > > On 12 June 2012 23:24, Matthew Ness <[email protected]> wrote: >> Hello list! >> >> I've been working on a number of wonder applications the last year at my >> 9-5, all of which we have deployed to AWS in various development and >> staging/QA states. For the production environment of the main >> application, >> we are looking at a deployment setup quite similar to this reference >> diagram: >> >> http://d36cz9buwru1tt.cloudfront.net/architecturecenter/AWS_ac_ra_web_01.pdf >> >> (from http://aws.amazon.com/architecture/) >> >> It's important to the company to ensure we can run smoothly across >> multiple Availability Zones of a Region, so the diagram represents the 3 >> (+1) tier application setup we are looking for. >> >> We're really happy with the approach we've taken so far, and the >> ELB-session-stickiness and autoscaling of the application tiers in each >> AZ >> is something we are currently evaluating. >> >> Ignoring CloudFront and Route 53 for a moment, we're interested in >> setting >> up the ELB with sticky sessions/session affinity, apache on each AZ, and >> a >> number of application VMs on each AZ, each one of course running a >> number >> of WO instances. The persistence tier is absolutely fine and accounted >> for >> in both AZs. >> >> >> >> So two quick questions: >> >> 1. Has anyone had any experience with ELB and sticky sessions with >> regards >> to WO, WOMonitor, and wotaskd? If so, are there any gotchas or hurdles >> you >> foresee me coming across? Any tips for smooth sailing? >> >> Tied (or apposed really) to this is the concept of distributed session >> storage, which we are also considering, so I'm looking forward to your >> WOWODC session, Ramsey! >> >> 2. Currently we're looking at manual horizontal scaling of the >> application >> tiers in each AZ, but it would be great to design/have a solution for >> triggered horizontal EC2 VM scaling with respect to WO. This would >> presumably require updating the WOMonitor and wotaskd. Again, any one >> with >> previous experience wanting to warn me off/enthusiastically give me >> hope? >> >> >> >> >> Any knowledge in this area would be greatly appreciated! >> >> Cheers, >> >> and see you all at WOWODC. >> >> -- >> Matt >> http://logicsquad.net/ >> _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [email protected]
