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How to cure slow/crashing ColdFusion servers - Webinar Thurs 12/3/09 1pm EST

  • Headaches from crashing servers got you down?Are your ColdFusion applications running slow or even crashing the server?
  • Are you concerned about what increasing load will do the the reliability of your application?
  • Do you want to protect your organizations reputation for quality on the web?

Then join TeraTech's ColdFusion server tuning guru Ajay Sathuluri for this webinar on what to do when your server is slow or sick. We will look at how to diagnose problems and some common ways to heal a sick ColdFusion server. We will also discuss what tools you can use to prevent problems from occurring. 


AjayAjay has been using ColdFusion for more than 10 years and has spoken on server tuning and load testing at CFUnited and MDCFUG.

The webinar on "How to cure slow and crashing ColdFusion servers"  is on Thursday Dec 3, 2009 1:00 PM  EST. The webinar will cover fixing slow servers, performance bottlenecks location and diagnosis tips. It will be approximately 45 minutes including time for Q and A. The webinar is free. You can register at  https://www1.gotomeeting.com/register/750953064 Hope to see you there!

 

System Requirements
PC-based attendees
Required: Windows® 2000, XP Home, XP Pro, 2003 Server, Vista

Macintosh®-based attendees
Required: Mac OS® X 10.4 (Tiger®) or newer

CFUnited load testing session went well.

My CFUnited presentation on "Dynamic Load Testing with Webserver Stress Tool" went well. Thanks to everyone for the good feedback. 

My presentation, source, and testing scripts will be posted on the CFUnited site soon after the conference.

Congrats to the 3 raffle winners: Steven Focht (Webserver Stress Tool 7), Abram Adams (WST), Bryan Modders (FusionReactor).

Paessler will be contacting the WST winners soon with the license info.

Thanks again to Paessler and Intergal.

Presenting at CFUnited on load testing

CFUnited is next week!

I'll be presenting on Wednesday on "Dynamic Load Testing with Webserver Stress Tool". I'll be covering Basic, parameterized, and scripted load testing. It's a fairly inexpensive tool, but can do some powerful testing.

This week I also found out I'll be able to raffle 3 software licenses: 2 licenses for Paessler Webserver Stress Tool, and 1 for FusionReactor server monitor! ($1000 worth of software). Licenses sponsored by Paessler and Intergral, respectively.

Topics:

  • Test Types
  • setting up a set of URLs
  • Multiple users
  • URLs bound to a dataset (parameterize the tested URLs, merge with a dataset; one set for each user)
  • Scripting, instead of list of URLs
  • Simulate multiple simultaneous CF sessions
  • How to simulate AJAX calls
  • Test results and logs; where's the most useful information

 

Why Load Test your ColdFusion Applications?

You just finished coding your latest web app and have even gone the extra step of running functional tests to eliminate bugs and make sure that all of the features work correctly.  Now it is ready to be released into the world!  Not so fast…If you have more than a few hundred users, you could be looking forward to having your users finding embarrassing new bugs or your server crashing under load.

Load testing is a critical step when producing any web application; it ensures that when your web app goes live, it will work properly.  It does this by simulating thousands of users to your site, clicking on forms, and doing updates and searches simultaneously.  Without load testing, however, bugs and server crashes may cause the loss of customers, reduced employee productivity, damage to your brand or corporate image, and even the capital expense of purchasing unnecessary hardware to fix the problems you shouldn’t have experienced in the first place!

Instead, spend some time upfront load testing your app under different test cases and user loads.  In a typical load testing engagement, we might spend several days to a week writing load testing scripts and running the application under different load levels.  Then we might spend one or more weeks fixing the issues found and rerunning the load tests to make sure that 1) the original issues are resolved and 2) no new issues have turn up.  After you have performed load testing, you can be sure that first and foremost, your web application will NOT fall apart under load, and secondly, you will even be able to tell exactly how many simultaneous users your web app can handle.

Load bugs in a web application are as common and similar as mosquitoes are in humid weather—they’re bound show up and no doubt get on your nerves.  Some of the causes for them include software configuration issues (for the Web server, database, load balancers etc.), poor network configurations, poorly optimized software code, and even because of insufficient hardware resources.  So, with all of these obstacles in the way of you unleashing your site into the world, make things easy for yourself and let load testing be your personal bug-spray!

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