force apache to always rebalance to same box for different tomcat contexts

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Hi,
I am having a serious issue for which I could not find solution.
The configuration:
Apache: 2.2 serving as load balancer as well
workers.properties
worker.list=balancer
worker.engine1.port=10001
worker.engine1.host=localhost
worker.engine1.type=ajp13
worker.engine1.lbfactor=1
#worker.engine2.port=10002
#worker.engine2.host=localhost
#worker.engine2.type=ajp13
#worker.engine2.lbfactor=1
#worker.engine3.port=10003
#worker.engine3.host=localhost
#worker.engine3.type=ajp13
#worker.engine3.lbfactor=1
worker.balancer.type=lb
worker.balancer.sticky_session=1
worker.balancer.sticky_session_force=1
worker.balancer.balance_workers=engine1,engine2,engine3
Cluster of three Tomcat 6 instances with ajp connector with two webapps
without session serialization e.g.
port="10001"
redirectPort="10011"
connectionTimeout="-1"
protocol="AJP/1.3">





The problem is that once user logs in into webapp1 and goes to link to
webapp2, it's not guarantied that he will go to same box as webapp 1. This
results in session lost and sometimes Principal is not correctly setup.
Using session serialization is not an option because sessions used in
webapp1/webapp2 are very heavy and it results in awfull performance.
Is there a way to force apache to always rebalance to same box for
different tomcat contexts?
Thanks,
Andrey.


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Hi,

I am having a serious issue for which I
could not find solution.

The configuration:

Apache: 2.2 serving as load balancer as
well

workers.properties

worker.list=balancer

worker.engine1.port=10001

worker.engine1.host=localhost

worker.engine1.type=ajp13

worker.engine1.lbfactor=1

#worker.engine2.port=10002

#worker.engine2.host=localhost

#worker.engine2.type=ajp13

#worker.engine2.lbfactor=1

#worker.engine3.port=10003

#worker.engine3.host=localhost

#worker.engine3.type=ajp13

#worker.engine3.lbfactor=1

worker.balancer.type=lb

worker.balancer.sticky_session=1

worker.balancer.sticky_session_force=1

worker.balancer.balance_workers=engine1,engine2,engine3

Cluster of three Tomcat 6 instances with
ajp connector with two webapps without session serialization e.g.

<Connector

port="10001"

redirectPort="10011"

connectionTimeout="-1"

protocol="AJP/1.3">

</Connector>

<Context path="/webapp1" distributable="false">


</Context>

<Context path="/webapp2" distributable="false">


</Context>

The problem is that once user logs in into
webapp1 and goes to link to webapp2, it's not guarantied that he will go
to same box as webapp 1. This results in session lost and sometimes Principal
is not correctly setup. Using session serialization is not an option because
sessions used in webapp1/webapp2 are very heavy and it results in awfull
performance.

Is there a way to force apache to always
rebalance to same box for different tomcat contexts?

Thanks,

Andrey.




---



This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and delete this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.



Please refer to http://www.db.com/en/content/eu_disclosures.htm for additional EU corporate and regulatory disclosures.

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