Joe McKendrick, ebizQ's SOA in Action Blogger, is a nationally published author and consultant
with deep knowledge and insights regarding trends and developments in
the technology industry. He is a contributing editor to a number of
national and international publications and Websites including
Database Trends & Applications, ZDNet, and Webservices.Org. He also
serves as analyst for Evans Data Corp., and is lead analyst for Evans'
Web services and enterprise development management issues surveys.
SOA in Action Blog
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« Two of a Kind: SOA and Web 2.0 | Main | The Virtuous Circle -- Why Registries Matter » September 25, 2006Using 'SOA' and 'High Performance' in the Same Sentence There has been considerable hand-wringing over the potential performance impact of SOA, and especially XML, on server environments. In a new think piece posted at Search WebServices, ZapThink's Jason Bloomberg sheds some light on the challenge of high-performance SOA -- and yes, he uses "high performance" and "SOA" in the same sentence. Granted, SOA is a services abstraction, and "every abstraction comes at a price," Bloomberg observes. "Loose coupling, composability, agility, and the other benefits of SOA all introduce performance overhead." At large sites with a lot of users and traffic, SOA performance is a huge challenge. Performance planning and enhancement didn't start with SOA, of course, and Bloomberg advises that architects and other SOA developers fully understand traditional capacity planning and performance management tools. "There's no way we'd be able to figure out how to scale Web services if we hadn't already worked out how to scale traditional Web applications," he writes. Bloomberg recommends addressing potential performance bottlenecks at different levels above and beneath the services abstraction layer. For example, service and infrastructure virtualization "can provide cost-effective approaches to dealing with variable performance issues, essentially by abstracting a specific part of the infrastructure. Virtualization is especially useful for dealing with unexpected spikes in demand, but the complexity of virtualizing heterogeneous resources can often limit such approaches' effectiveness." The SOA governance framework also can play a key role in SOA performance, Bloomberg adds. "The broadest, most agile approach to SOA performance is to plan for it as part of the governance framework for the SOA implementation. ...craft policies that will maintain the required performance levels while empowering users as much as is practical." This will create predictable limits for overall performance, he adds. Posted by joemckendrick in SOA | Digg This | Add to del.icio.us Trackback Pings TrackBack URL for this entry: Listed below are links to weblogs that reference Using 'SOA' and 'High Performance' in the Same Sentence:
» High performance SOA - an oxymoron? Umm, no. from Udi Dahan - The Software Simplist Tracked on September 29, 2006 05:37 PM CommentsYou can expend your knowledge about Capacity Planning in optier.come site. Posted by: Capacity Planning at September 23, 2007 10:28 AM Post a comment
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