Multithreaded and SingleThreadModel

[Jack Lau]

Hello All,

Since servlet by default is using multithread, multiple threads can access same servlet simutanously. Is there only one instance of each servlet (e.g. servletA) exists in the servlet container?

Also if implements SingleThreadModel, does it create more than one servlet (e.g. servletA) if there are more than 1 request?

Thanks,
Jack

[Mikalai Zaikin]

Hi Jack ,

Yes, by default only 1 instance of each Servlet exists in Servlet Container and serves multiple threads simultaneously.

If SingleThreadModel implemented, there are 2 options:
1) create pool of servlet instances and pass new request to new instance
2) serialize incoming request and put it in the queue to one servlet instance

1), or 2) - depends on servlet container implementation.

regards,
MZ

[Jack Lau]

Thank you!
Jack