From XaaS to Java EE – Which damn cloud is right for me?
|(c)2012 msg systems ag|
PaaS isn't PaaS. The Selection process and the Candidates
What I do want to do is to separate the many available offerings a bit. I decided not to accept anything but offerings with a clear and certified pre-configured Java EE container. This is the reason why you will not find GAE or CloudFoundry or heroku in here. They all offer some kind of Java application hosting but no Java EE container. Here are the candidates.
Amazon Web Services (abbreviated AWS) is a collection of remote computing services (also called web services) that together make up a cloud computing platform. One of them, Amazon Elastic Beanstalk provides quick deployment and management of applications in the cloud. Running Tomcat 6+7 only doesn't qualify for this shootout normally. But I am making an exception here because it is the most well known cloud offering and one of the oldest ones. Lets look at it as kind of a reference in this comparison. Register your account via aws.amazon.com/elasticbeanstalk/
Oracle Cloud - Java Service
One of the new kids on the block. Announced two years back at Oracle's annual trade fair it is now slightly rolling out to the public. Honestly I don't have an account at the time of writing but I participated in the early access program and had a chance to test it extensively. The Java service is only one part of the extensive offering. It basically comes down to a WebLogic Server to host your applications on. Access it via cloud.oracle.com.
One among the established providers. CloudBees was founded in early 2010, is incorporated in the United States and lead by a couple of former JBoss, Oracle and VMware people. Their most prominent move was to join the JCP (Java Community Process). They offer a Java EE Web Profile stack based on JBoss AS 7. Learn more about their offerings on www.cloudbees.com
OpenShift is Red Hat's free, auto-scaling Platform as a Service (PaaS) for applications. This includes many different stacks for many languages. One among them is the AS 7 with the Java EE 6 Full Profile features. You can find all offerings on openshift.redhat.com
I meet the guys two years back at JavaOne. A very tiny booth and they were handing out business cards with trial codes on them. It has been a ride for them since then. DukesChoice Award winner this year and more and more hosting providers as partners. Beside the Java EE offering (GlassFish 3) they also run jetty and Tomcat in the cloud. Find out more at jelastic.com
SAP NetWeaver Cloud
This wasn't on my initial list but some of their developer advocates pointed me to the Apache Virgo based Java EE Web Profile offering they have. Enough to find out more and add it to the list. Find out more bit.ly/sapnwcloud
Now that we do know a little about the candidates it is time for a first look at the rating. First assumption I made was that I am comparing the different "free offerings". So this might not completely reflect the truth if free and purchased tiers do differ too much. The one exception is Amazon. They don't offer a free tier.
One remark: I have been asked to include SLA or pricing information in this rating. I decided not to do it. The reasons are obvious. The focus was on functionality and the free offerings. Looking into pricing would open another door I am not willing to open as of today.
The rating happened with 35 individual metrics ordered in five different categories:
Metrics that describe the registration process and the overall experience with instance creation and configuration. It also weights the accessibility of pricing information and the time it takes to get the environment up and running.
This category contains metrics around the number of different servers products, Java EE features (WP, FP), included services (e.g. database), SDK behaviour, Security, custom JVM args and more.
Metrics asking for IDE support, build support (maven, ant), usability of the web consoles and access to logfiles.
Captures some few metrics around monitoring.
Weights in the available support options and community sizes and activity.
Given the distribution of the metrics this is clearly administration and development centered. I didn't weighted this further because I simply like it to be like this. Every metric had three different characteristics where one was assigned. Depending on the question most of them could be answered following the following scheme:
0: Not possible / low end / Unusable / Slow / No
1: Average / Usable
2: Top notch / Fast / Yes
The Results at a Glance
After everything has been ranked there was a total of 70 points (100%) to achieve.
Jelastic clearly leads the crowd here with 73 % of the possible points. Direct follower is Cloudbees with their RUN@cloud offering. OpenShift takes the proud third place in this ranking. The detailed and normalized breakdown by category reveals where everybody has it's strength and weaknesses.
I know that this rating has very few concrete data-points to hold on to. And I'm going to disclose them over the next few months. I am also willing to do a more detailed review of the individual candidates. So consider this as a first round for late 2012 which will get updated during the next year. Happy to read your thoughts and ideas!