How does a servlet request work. Not a newbie question ;) 2004-01-09 - By Nikola Milutinovic
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Donie Kelly wrote:
> Hi all
>
> I want to insert some form of scheduling into our application and I was
> wondering how Tomcat passes the request to the actual servlet I write.
> Does Tomcat just read the headers to create the request object and leave
> the body of the message in an inputstream for the servlet to read or is
> all the data in the request read by Tomcat before passing it to servlet?
>
> Some of my traffic is more important that other based on headers in the
> request. I want to prioritise the handling of requests under load
> conditions.
I'm not aware of any priority scheduling in Tomcat's worker threads. There is
no
public API for that, anyway.
If I understand correctly, you'd like people to login to a part of your app and
then they will be issued a Cookie, which would be the token for boosting
priority of such requests. Possibly in a Filter.
Unless you wish to employ your own thread pools, internal or real, I think this
is a no-go.
As a quick solution, you'd be better off using IP layer stuff, like IP QoS
(Quality of Service), Linux policy routing, etc.
Nix.
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