The Insider's Guide to Next-Generation BPM
By Gian Trotta, ebizQ , 10/13/2003
Print this article
Email this article
Talk Back!
Write to Editor
Extensive experience building J2EE applications in IBM’s WebSphere environment – and mistakes made along the way -- have convinced Candle Corporation Senior Architect Warren Macek that a by-the-book approach isn’t always the best strategy.
“I thought I did everything right, and when I went to production with these applications after they tested great, they ran very poorly,” Macek noted in the ebizQ webinar Best Practices for J2EE Programming and Performance Management, part of the Best Practices for IBM WebSphere Software Series, sponsored by Candle Corp.
Macek provided a long list of tips and best practices.
It began with optimizations such as bypassing the application server when providing static Web pages, using servlets that don’t require Enterprise Java Beans, and only using the HTTP server embedded in WAS 5.0 for testing.
Macek explained how perfectly tuned application servers can be templated into easy-to-control server groups, then cloned on the same (vertical cloning) -- or across multiple (horizontal cloning) – machines to efficiently increase performance.
“(Cloning) is a very slick way of controlling JVM processes running on the app server for your application,” he noted.
Macek outlined the pros and cons of, and differences between the types of cloning, but pointed out that, “In the real world, what I've seen is that most of the time, people do a combination of both vertical and horizontal cloning. They combine the two.
“Normally I start with vertical cloning, get the best throughput I can, then add horizontal cloning, and mirror the two machines, because failover support is key when you're running a full-blown application in production, where you have to have 24/7 uptime.”
Macek then focused in more detail on servlets: their proper size (“under 50 lines of code”), their balance with JSPs (“We like to see one servlet serve up maybe 3, possibly 4 JSP pages”), and the best way to have them acquire static information.
Dynamic Web pages pose a bigger challenge. Single-threaded servlets that must be instantiated for every user create “tremendous overhead” and should be avoided, Macek advised.
And while multi-threaded servlets offer better performance, they also require some precautions – Macek shared with the audience how poor coding on his part temporarily enriched a financial-services user by enabling him to access another’s account. Macek stressed, “If you do multi-threaded modeling, synchronize, and maintain your instance variables local to that piece of code that's necessary.”
-1-
Best Practices in Moving Processes to the Clouds
How Can the Cloud Fit Into Your Applications Strategy?
Cloud Data Integration Best Practices
The Economics of Cloud Computing
Data Services Insight: Successful implementation of Canonical Information Models
ebizQ editorial highlights and updates, compiled by Site Editor Anne Stuart
March 10, 2011
The sixth annual BPM in Action 2011 Virtual Conference will explore cutting-edge market developments in BPM and describe how to leverage them for improved business operation and performance. More
Date:Apr 07, 2010
Time:13:00 PM
ET- (17:00 GMT)
Date:Apr 07, 2010
Time:12:00 PM
ET- (16:00 GMT)
In part two of Joe McKendrick's recent podcast with Miko Matsumura, chief strategist for Software AG, they talk about how SOA and IT systems need to change and grow and adapt with the organization around it.
Listen Now
Phil Wainewright interviews David Vap, VP of products at RightNow Technologies, and finds out how sharing best practices can help businesses understand how best to engage with online communities.
Listen Now
Scott Hebner, Vice President of Marketing and Strategy for IBM Rational, discusses a topic on the top of every company's mind today: getting the most from IT investments.
Listen Now
In BI, this tough economy and the increasing role of Web 2.0 and MDM are certainly topics on people's minds today. WiseAnalytics' Lyndsay Wise addresses each of them in this informative podcast.
Listen Now
Deepak Singh, President and CTO of Adeptia, joins ebizQ's Dennis Byron in a podcast that gets its hand around the trend of industry-specific BPM.
Listen NowSmart event processing can help your company run smarter and faster. This comprehensive guide helps you research the basics of complex event processing (CEP) and learn how to get started on the right foot with your CEP project using EDA, RFID, SOA, SCADA and other relevant technologies. Learn More
A lot of people are talking about Enterprise 2.0 as being the business application of Web 2.0 technology. However, there's still some debate on exactly what this technology entails, how it applies to today's business models, and which components bring true value. Some use the term Enterprise 2.0 exclusively to describe the use of social networking technologies in the enterprise, while others use it to describe a web economy platform, or the technological framework behind such a platform. Still others say that Enterprise 2.0 is all of these things. Learn More
|
|
This new publication from our sister site SearchSOA.com explores workflow, business activity monitoring (BAM) and complex event processing (CEP) issues. |
|
|
