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Archive for May 28th, 2007

Mmmmm Virtual Infrastructure….

So I’ve decided to go with EC2 - it’s the future IMHO… utility computing and all that jazz. More compelling are Amazon’s revised costing structures.
How to go about using it? Sign up! :-D If you are out of luck and can’t get an account rightscale can help you out there by acting as a proxy to amazon for you - bloody brill service. Excellent demo of automatic horizontal scaling by rightscale - I’d have questions on how automatic this is and if it can do adaptive and predictive scaling.
The documentation at the dev site is great so no need to repeat.
There’s plenty of us out there that wanna use the olde bauld ubuntu - there’s an image of it as a shared amazon public image - just one caveat - there’s no local loopback adapter configured so all you need to do is follow the instructions here. If that doesn’t suit then get familiar with debootstrap and read through here - it’s not alot! Some more resources describing the creation of custom AMIs can be found here and here
With this image up and instantiated, for my needs (at least right now), all I have to do is to install Tomcat (good resource here) and re-jigger the config file to listen on port 80 (yea yea I know - I’ll be proxying to it, but later).

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Friday’s Travels…

Just some random stuff:

  • Reading this for a nice and quick overview of REST
  • Now here’s a TOC that I’ve rarely (never) seen!
  • Type faces are as always important
  • Power consumption is always a increasing issue - slipping from data centres to the home
  • Idea: Wiki’s for contract negotiation - legal, non-functional or functional interfaces
  • From CRN: “The concept of an activity is the idea that wherever I am, I can spawn an activity, create a team and people can ontribute work into that activity regardless of the tool I’m in or they’re in. It gives us a way to transcend the different stove-piped tools,” Bisconti said.
  • Strategy is differentiated from tactical or immediate actions as being the magnitude of time frame and scope
  • HOWTO: Adjust a sturmey archer 5 speed internal hub <- TODO
  • So according to a myers briggs test I’m executive
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Soapod Thoughts…

What would be good to do with Soapod is to combine
the notion of a message router and application server - then u can do great stuff like URI based service lookup - essentially the node routes traffic a la IP but deals with the application request should the service exist on the node.

But what about the case of many services of the same type existing? In this case the node reporting the many services returns the list to the client which chooses wither manually or using a recommender based on the original client’s local knowledge/preferences. This could be negated by the selection of appropriate URI naming schemes if tagged based invocation requests did not suffice.
Perhaps a good vehicle to explore this idea would be Mule - an OSS ESB. What would be required is a dynamic registry of registered services (did somebody say OSGi? :-D) and their corresponding URIs. This OSGi service registry would ideal back end on to a folksonomic DHT service registry - a service already implemented in Soapod.

Expand: Enterprise mashups - resource oriented computing - services are queryable by RSS
e.g. a registry service:

http://host/registryService?listServices

returns a list of services available in the repository in RSS format

http://host/registryService?listServices&Tag=Photo

returns a list of photo services available in the repository in RSS format

Tokyo Black Star - Blade Dancer (Dixon Edit) from the album “Fabric 25 Carl Craig” by Carl Craig

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