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Posted to users@tomcat.apache.org by "Raman, Jay" <Ja...@knova.com> on 2006/05/24 21:57:33 UTC
FW: modJK with and without load balancer
Is there a difference between the following 2 configurations of
workers.properties?
In the first case it is a load balanced configuration with only one
worker
The second case is not a load balanced configuration.
When there is only one worker does modJK treat it as if it is the second
case?
Are there performance advantages in the second case?
Jay
# Load balancer with 1 worker
worker.list=loadbalancer
worker.router.host=lxdnp636.acme.com
worker.router.port=8009
worker.router.type=ajp13
worker.router.lbfactor=1
worker.router.cache_timeout=120
worker.router.socket_keepalive=1
worker.router.socket_timeout=60
worker.router.disabled=True
worker.loadbalancer.type=lb
worker.loadbalancer.sticky_session=1
worker.loadbalancer.balanced_workers=router
#
# No load balancer
#
worker.list=router
worker.router.host=lxdnp636.acme.com
worker.router.port=8009
worker.router.type=ajp13
worker.router.lbfactor=1
worker.router.cache_timeout=120
worker.router.socket_keepalive=1
worker.router.socket_timeout=60
worker.router.disabled=True
Re: FW: modJK with and without load balancer
Posted by Rainer Jung <ra...@kippdata.de>.
Eliminating the lb will give a slight performance improvement, using the
lb will give you a subtle management improvement (being able to stop the
worker in jkstatus).
Different is also the way errors are handled (lb takes workers offline
after errors for a minute, direct workers will be tried for each request
even after they have thrown errors).
Raman, Jay wrote:
>
>
>
>
> Is there a difference between the following 2 configurations of
> workers.properties?
>
>
>
> In the first case it is a load balanced configuration with only one
> worker
>
> The second case is not a load balanced configuration.
>
>
>
> When there is only one worker does modJK treat it as if it is the second
> case?
>
> Are there performance advantages in the second case?
>
>
>
> Jay
>
>
>
>
>
>
>
> # Load balancer with 1 worker
>
> worker.list=loadbalancer
>
> worker.router.host=lxdnp636.acme.com
>
> worker.router.port=8009
>
> worker.router.type=ajp13
>
> worker.router.lbfactor=1
>
> worker.router.cache_timeout=120
>
> worker.router.socket_keepalive=1
>
> worker.router.socket_timeout=60
>
> worker.router.disabled=True
>
> worker.loadbalancer.type=lb
>
> worker.loadbalancer.sticky_session=1
>
> worker.loadbalancer.balanced_workers=router
>
> #
>
> # No load balancer
>
> #
>
> worker.list=router
>
> worker.router.host=lxdnp636.acme.com
>
> worker.router.port=8009
>
> worker.router.type=ajp13
>
> worker.router.lbfactor=1
>
> worker.router.cache_timeout=120
>
> worker.router.socket_keepalive=1
>
> worker.router.socket_timeout=60
>
> worker.router.disabled=True
>
--
kippdata informationstechnologie GmbH
Bornheimer Str. 33a
53111 Bonn
Tel.: 0228/98549-0
Fax: 0228/98549-50
www.kippdata.de
=======================
kippdata informationstechnologie GmbH
Bornheimer Str. 33a
D-53111 Bonn
Tel.: +49/0228/98549-0
Fax: +49/0228/98549-50
www.kippdata.de
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