In the previous blog post we learned how we could scale an application horizontally. If you run your application on multiple gears, life becomes a bit more complicated. If you are investigating a production problem, the first thing in general to look at is the applications log file. Since there is now more than one instance, there are multiple log … Lees verder Managing multiple gears with Open Shift
In the previous blog post we talked about vertical scaling with Open Shift. This blog posts investigates the next step: horizontal scaling. Horizontal scaling At some point we’ll run out of bigger sizes gear. And separating out chunks of an application to different gears doesn’t always help. To access a separated part of the application (e.g. the database), you most likely need … Lees verder Horizontal Scaling with Open Shift
If you run your application on an OpenShift environment, one of the advantages you will have is that you can scale the environment quite easily. If traffic to your website continues to increase, at some point a single small gear simply won’t cut it anymore. In the next few blog posts I’ll explore the available options you have for scaling out and for upgrading your … Lees verder Vertical Scaling with OpenShift
If you are doing SOAP with Java, you probably are using the JAX-WS standard. One implementation of it, the reference implementation, is JAX-WS RI (duh). One of its features is that it generates a WSDL dynamically upon request. This is convenient if you have separated development, test, accept and production environments: the WSDL will automatically detect on which domain name … Lees verder JAX-WS RI WSDL generation behind a load-balancer
Hi all! As promised at JFall 2013, I’ve made the source of the PigsInSpace demo available at GitHub. For those who were not at JFall (why not?!), I gave a presentation called ‘Designing distributed programs on a Raspberry Pi cluster’. The demo app I used, called Pigs in Space, shows a huge map with spaceships flying around. The goal is … Lees verder PigsInSpace demo (JFall 2013)
This article gives an example of how you can use a Pool to limit resource usage. In big web applications it is essential to put limits on how much resources a specific process can use. For example, if you use BIRT embedded in your application you might want to restrict the number of reports being run at the same time. … Lees verder Using a Pool to control resource intensive processes
