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Posted to users@tomcat.apache.org by J Channel <jc...@gmail.com> on 2009/04/13 19:58:18 UTC
Tomcats in two mod_jk lb-clusters simultaneously
Im need it for failover issues.
Is this possible?
Scheme of my idea here:
http://pic.ipicture.ru/uploads/090413/k3k83oomS1.gif
Any remarks are welcome.
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RE: Tomcats in two mod_jk lb-clusters simultaneously
Posted by "Anthony J. Biacco" <ab...@formatdynamics.com>.
Oh no, I wasn't saying to have cisco loadbalance the tomcats, I was
asking why cisco isn't load balancing your apache requests?
But yes, your answer is yes.
-Tony
---------------------------
Manager, IT Operations
Format Dynamics, Inc.
303-573-1800x27
abiacco@formatdynamics.com
http://www.formatdynamics.com
-----Original Message-----
From: J Channel [mailto:jchannelx@gmail.com]
Sent: Monday, April 13, 2009 2:37 PM
To: Tomcat Users List
Subject: Re: Tomcats in two mod_jk lb-clusters simultaneously
Cause at first cisco can't balance all tomcats as precision as mod_jk
And for example if all tomcats on Server1 dies, or work soooo sloooww
(like 3mins waiting for reply, it can be in our application) but
apache still alive - cisco will dont know about it fail and users can
give a bad page with nothing =))
Anyway, reply for Q: "Its possible to include a few tomcat servers in
two different lb-clusters" is YES?
> Why aren't you load balancing to both apaches in a single
> cluster instead of having one take all the load and the other in
reserve
> in case the first fails (as your diagrams seems to show)?
>
> -----Original Message-----
> From: J Channel [mailto:jchannelx@gmail.com]
> Sent: Monday, April 13, 2009 11:58 AM
> To: Tomcat Users List
> Subject: Tomcats in two mod_jk lb-clusters simultaneously
>
> Im need it for failover issues.
>
> Is this possible?
> Scheme of my idea here:
> http://pic.ipicture.ru/uploads/090413/k3k83oomS1.gif
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Re: Tomcats in two mod_jk lb-clusters simultaneously
Posted by J Channel <jc...@gmail.com>.
Cause at first cisco can't balance all tomcats as precision as mod_jk
And for example if all tomcats on Server1 dies, or work soooo sloooww
(like 3mins waiting for reply, it can be in our application) but
apache still alive - cisco will dont know about it fail and users can
give a bad page with nothing =))
Anyway, reply for Q: "Its possible to include a few tomcat servers in
two different lb-clusters" is YES?
> Why aren't you load balancing to both apaches in a single
> cluster instead of having one take all the load and the other in reserve
> in case the first fails (as your diagrams seems to show)?
>
> -----Original Message-----
> From: J Channel [mailto:jchannelx@gmail.com]
> Sent: Monday, April 13, 2009 11:58 AM
> To: Tomcat Users List
> Subject: Tomcats in two mod_jk lb-clusters simultaneously
>
> Im need it for failover issues.
>
> Is this possible?
> Scheme of my idea here:
> http://pic.ipicture.ru/uploads/090413/k3k83oomS1.gif
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RE: Tomcats in two mod_jk lb-clusters simultaneously
Posted by "Anthony J. Biacco" <ab...@formatdynamics.com>.
I don't see anything not doable in your diagram, although I would take
issue with you having your apache servers separated in your cisco load
balancer. Why aren't you load balancing to both apaches in a single
cluster instead of having one take all the load and the other in reserve
in case the first fails (as your diagrams seems to show)?
-Tony
---------------------------
Manager, IT Operations
Format Dynamics, Inc.
303-573-1800x27
abiacco@formatdynamics.com
http://www.formatdynamics.com
-----Original Message-----
From: J Channel [mailto:jchannelx@gmail.com]
Sent: Monday, April 13, 2009 11:58 AM
To: Tomcat Users List
Subject: Tomcats in two mod_jk lb-clusters simultaneously
Im need it for failover issues.
Is this possible?
Scheme of my idea here:
http://pic.ipicture.ru/uploads/090413/k3k83oomS1.gif
Any remarks are welcome.
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