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Posted to users@tomcat.apache.org by Takumi Fujiwara <tr...@yahoo.com> on 2002/09/12 19:10:30 UTC
Setting thread prority in Tomcat
Hi,
Could someone please tell me if it is possible to
adjust the priority of servlet serving thread based on
which servlet it is serving?
For example, I have 2 servlets in my Web Application.
All threads serving Servlet 1 will have higher prority
than Servlet 2.
Can I config that in TomCat?
Thanks for any help.
Sam
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Re: Setting thread prority in Tomcat
Posted by Rodrigo Ruiz <rr...@gridsystems.com>.
See inlines :)
----- Original Message -----
From: "Tim Funk" <fu...@joedog.org>
To: "Tomcat Users List" <to...@jakarta.apache.org>
Sent: Thursday, September 12, 2002 7:15 PM
Subject: Re: Setting thread prority in Tomcat
> Nope. A servlet may run in any thread. The servlet itself may adjust its
> priority (if allowed by the security manager). But you would need to
> remember to also lower it since the next request (to maybe a "normal
> servlet") to run in that thread would also run at that priority.
>
A way to do this could be with a Filter. Just set the priority to the
desired level before service is called, and return it to its original value
after servlet process.
> Personally - unless who are running a high load site and the servlet is
> cpu intensive and "long running" - I don't think you'll notice a
difference.
>
I'm not sure, but I suppose a change in servlet thread priorities could have
an important impact on performance. If the thread has higher priority than
the thread receiving requests, a CPU intensive servlet will slow the rest of
the server. Just be careful :-)
>
> Takumi Fujiwara wrote:
> > Hi,
> >
> > Could someone please tell me if it is possible to
> > adjust the priority of servlet serving thread based on
> > which servlet it is serving?
> >
> > For example, I have 2 servlets in my Web Application.
> > All threads serving Servlet 1 will have higher prority
> > than Servlet 2.
> >
> > Can I config that in TomCat?
> >
> > Thanks for any help.
> > Sam
> >
> > __________________________________________________
> > Do you Yahoo!?
> > Yahoo! News - Today's headlines
> > http://news.yahoo.com
> >
> > --
> > To unsubscribe, e-mail:
<ma...@jakarta.apache.org>
> > For additional commands, e-mail:
<ma...@jakarta.apache.org>
> >
> >
> >
>
>
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<ma...@jakarta.apache.org>
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<ma...@jakarta.apache.org>
>
>
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Re: Setting thread prority in Tomcat
Posted by Tim Funk <fu...@joedog.org>.
Nope. A servlet may run in any thread. The servlet itself may adjust its
priority (if allowed by the security manager). But you would need to
remember to also lower it since the next request (to maybe a "normal
servlet") to run in that thread would also run at that priority.
Personally - unless who are running a high load site and the servlet is
cpu intensive and "long running" - I don't think you'll notice a difference.
Takumi Fujiwara wrote:
> Hi,
>
> Could someone please tell me if it is possible to
> adjust the priority of servlet serving thread based on
> which servlet it is serving?
>
> For example, I have 2 servlets in my Web Application.
> All threads serving Servlet 1 will have higher prority
> than Servlet 2.
>
> Can I config that in TomCat?
>
> Thanks for any help.
> Sam
>
> __________________________________________________
> Do you Yahoo!?
> Yahoo! News - Today's headlines
> http://news.yahoo.com
>
> --
> To unsubscribe, e-mail: <ma...@jakarta.apache.org>
> For additional commands, e-mail: <ma...@jakarta.apache.org>
>
>
>
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