This week's giveaway is in the Android forum.
We're giving away four copies of Android Security Essentials Live Lessons and have Godfrey Nolan on-line!
See this thread for details.
The moose likes Web Component Certification (SCWCD/OCPJWCD) and the fly likes SingleThreadModel instances queue Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of Android Security Essentials Live Lessons this week in the Android forum!
JavaRanch » Java Forums » Certification » Web Component Certification (SCWCD/OCPJWCD)
Bookmark "SingleThreadModel instances queue" Watch "SingleThreadModel instances queue" New topic

SingleThreadModel instances queue

Guennadiy VANIN
Ranch Hand

Joined: Aug 30, 2001
Posts: 898
If servlet implements SingleThreadModel, then it makes "the web server queuing requests and start another instance of the servlet to service the demand".
How it would be possible to determine existence of multiple instances in order to implement additional logic for this case?
How many instances will be created? Is it possible to control?
Is it possible to check the queue?
Ian Darwin
Ranch Hand

Joined: Aug 03, 2001
Posts: 64
The implementation of multiple instances of a SingleThreaded servlet is highly container-specific, both in terms of how it's implemented and in terms of how many will be run. Most servers have a GUI or Web-based tool that will give you some control over the numbers.

Ian Darwin
Many questions are answered in my Java Cookbook, 2nd Edition
Guennadiy VANIN
Ranch Hand

Joined: Aug 30, 2001
Posts: 898
Thanks, Ian.
Is it a role of developer or of the system administrator?
I agree. Here's the link:
subject: SingleThreadModel instances queue
Similar Threads
SingleThreadModel ??
Question regarding SingleThreadModel
Instances of a Servlet
SingleThreadModel - WebSphere - servlet instance pool size
Number of Instances Per Servlet