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Posted to dev@tomcat.apache.org by Mladen Turk <mt...@apache.org> on 2005/09/16 11:27:30 UTC
Re: Bug or Feature inside mod_jk loadbalancer algo?
Peter Rossbach wrote:
> Hey,
>
> I have a strange loadbalancer behaviour at a customer site with Apache
> 2/mod_jk 1.2.14, JVM 1.5, Tomcat 5.5.9 (cluster), (Suse 9.1)
>
Hi guys,
Peter you are correct about this...
I found by myself too, that balancer is misbehaving in some cases.
One of them is 'domain' model, where multiple workers should behave
like one on the global scale, but still maintain internal load.
The other is for worker-like mpm's when cachesize is lower then
the ThreadsPerChild. I've been able to fix that (sort of), but I'm
not happy with the fix.
What would I suggest is that we gather all the 'use cases' and
write down what the predicted results should be.
I'll create a separate .txt file (that will later be part of
loadbalancer howto) upon which we can enter the configuration
and expected behavior.
How that sounds?
I'm moving this discussion to the tomcat-dev@, so that we have the
trace of it. OK?
Regards,
Mladen.
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Re: Bug or Feature inside mod_jk loadbalancer algo?
Posted by Peter Rossbach <pr...@objektpark.de>.
Sounds good to me.
Wrote a spec before implementation is very helpfull :-)
The domain case with sticky session and real clustered szenarios is
not easy.
Peter
Mladen Turk schrieb:
> Peter Rossbach wrote:
>
>> Hey,
>>
>> I have a strange loadbalancer behaviour at a customer site with
>> Apache 2/mod_jk 1.2.14, JVM 1.5, Tomcat 5.5.9 (cluster), (Suse 9.1)
>>
>
> Hi guys,
>
> Peter you are correct about this...
> I found by myself too, that balancer is misbehaving in some cases.
> One of them is 'domain' model, where multiple workers should behave
> like one on the global scale, but still maintain internal load.
>
> The other is for worker-like mpm's when cachesize is lower then
> the ThreadsPerChild. I've been able to fix that (sort of), but I'm
> not happy with the fix.
>
> What would I suggest is that we gather all the 'use cases' and
> write down what the predicted results should be.
>
> I'll create a separate .txt file (that will later be part of
> loadbalancer howto) upon which we can enter the configuration
> and expected behavior.
>
> How that sounds?
>
> I'm moving this discussion to the tomcat-dev@, so that we have the
> trace of it. OK?
>
> Regards,
> Mladen.
>
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> To unsubscribe, e-mail: tomcat-dev-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tomcat-dev-help@jakarta.apache.org
>
>
>
>
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