Amazon CloudFront Test Results with Small Objects

Following up on our Date with the CloudFront Operations Manager we have just released our public test results using a small 1.6kb object (a small gif file).  The results of the tests can be found here, Amazon CloudFront / S3 Small Object Test Results
In a nutshell, we found a fairly significant performance improvement using [...]

TIBCO Silver v. Amazon EC2: First Impressions

Just coming off a ten day vacation, I was planning to write a few posts on a few “pure” scientific topics like string theory, complexity, and emergence.    However, a few folks contacted me and asked me my opinion on TIBCO Silver; so, I thought I would at least blog on my first impressions.
TIBCO’s marketing [...]

TIBCO BusinessEvents 3.0

I was pleased to read the Paul Vincent’s post, TIBCO BusinessEvents 3.0.    TIBCO has always had a forward thinking vision for distributed computing and this release of BE 3.0 is another step in the right direction.  TIBCO now has the only commercial-off-the-shelf (COTS) event processing platform on the market that supports distributed event processing, multi-agent [...]

A Brief Introduction to Blackboard Architectures

A blackboard architecture is a distributed computing architecture where distributed applications, modelled as intelligent agents, share a common data structure called the “blackboard” and a scheduling/control process. The blackboard can be either centeralized or distributed, depending on the requirements and constraints of the application(s).
To solve a complex problem in the blackboard-style, the intelligent [...]

Clouding and Confusing the CEP Community

Ironically, our favorite software vendors have decided, in a nutshell, to redefine Dr. David Luckham’s definition of “event cloud” to match the lack-of-capabilities in their products.  
This is really funny, if you think about it. 
The definition of “event cloud” was coordinated over a long (over two year) period with the leading vendors in the event processing community and is based on the [...]

Bankers Voice Scepticism Over New Event Processing Technologies

This week I completed a presentation on complex event processing at Wealth Management Asia 2007 where I had a chance to field some tough questions from risk management experts working for some of the top banks in the region.
In particular, one of the meeting attendees voiced strong scepticism over emerging event processing technologies.   The basis for his scepticism was, in his [...]

COTS Software Versus (Hard) Coding in EP Applications

Opher Etzion has kindly asked me to write a paragraph or two on commercial-off-the-shelf  (COTS) software versus (hard) coding software in event processing applications. 
My thoughts on this topic are similar to my earlier blog musings, Latency Takes a Back Seat to Accuracy in CEP Applications.
If you buy a EP engine (today) because it permits you run some quick-and-dirty [...]

Clustered Databases Versus Virtualization for CEP Applications

In my earlier post, A Model For Distributed Event Processing, I promised to address grid computing, distributed object caching and virtualization, and how these technologies relate to complex event processing.   Some of my readers might forget my earlier roots in networking if I continue to talk about higher level abstractions!  So, in this follow-up post I will discuss virtualization relative to [...]

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