Hi Mladen,
That sounds feasible...but I have no idea how to do that!!
Would you mind pointing me in the right direction?
- how do we create custom headers? Where?
- how do we get access to the ajp demarshaling?
Sorry for the ignorance! I haven't done any extending of tomcat before...
thanks very much,
David
|---------+---------------------------->
| | Mladen Turk |
| | <[EMAIL PROTECTED]|
| | > |
| | |
| | 02/09/2005 12:33 |
| | PM |
| | Please respond to|
| | "Tomcat |
| | Developers List" |
| | |
|---------+---------------------------->
>--------------------------------------------------------------------------------------------------------------------|
|
|
| To: Tomcat Developers List <tomcat-dev@jakarta.apache.org>
|
| cc:
|
| Subject: Re: Custom load balancing algorithm and mod_jk???
|
>--------------------------------------------------------------------------------------------------------------------|
[EMAIL PROTECTED] wrote:
> Hi,
>
> Thanks very much for the reply.
>
> Ok, how is it possible? What would we need to extend / where would we
plug
> it in?
>
> Yes, we'd like to balance on CPU usage of tomcat servers that Apache is
> load balancing. Or, even, by having each tomcat app communicate with the
> balancer to tell it how busy it is.
>
> Our problem is that we receive a variety of requests, some of which are
> very resource intensive and tie up that tomcat for a good while. Hence a
> round-robin or balance factors algorithm are not very effective.
>
> Do you have any ideas of a possible solution?
>
Use custom headers, and update lb_factors according to that value.
During ajp demarshaling remove those headers so that clients are
unaware of that.
For example use 100/CpuUsage as lb_factor, so if CPU load is
high it's lb_factor will be smaller, thus lowering the load to that
node.
Mladen.
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
