Re: CiscoLB jk2 problem

[Antonio Fiol Bonnín <fi...@terra.es>]

When Apache detects Tomcat is down, it has already accepted the 
connection (it cannot refuse it anymore).

Otherwise, how would Apache know that the request was to forward to 
Tomcat, if it hadn't accepted the connection, and received the request 
through it?

--> That means: You simply cannot. Protocol design prohibits it.

Antonio Fiol


Angus Mezick wrote:

>I need to let apache fail nicely when a tomcat instance has crashed,
>been stopped or is being restarted.  Right now this is what happens
>through the jk2 connector:
>I stop apache:            10061 - Connection refused
>I stop one tomcat webapp: HTTP Status 404
>I stop the tomcat server: 500 Internal Server Error
>Directly to tomcat:
>I stop apache:            Nothing happens, not using it :)
>I stop one tomcat webapp: HTTP Status 404
>I stop the tomcat server: 10061 - Connection refused
>
>I would like to see apache return 10061 - Connection refused when I stop
>tomcat instead of error 500 because this can cause problems with the
>cisco load balancer noticing that a server has dropped out of the loop.
>We are doing a simple one apache <-> one tomcat setup on 6 machines that
>are HW load balanced.  Each tomcat has multiple webapps each accessible
>through a virtual host.  Do I just need to switch to JNI?
>
>
>My current workers2.properties:
> only at beginnin. In production uncomment it out
>[logger.apache2]
>level=DEBUG
>
>[shm]
>file=/ApacheGroup/Apache2/logs/jk2.shm
>size=1048576
>
># Example socket channel, override port and host.
>[channel.socket:localhost:8009]
>port=8009
>host=wbdevweb5.guidestar.net
>
># define the worker
>[ajp13:localhost:8009]
>channel=channel.socket:localhost:8009
>
># define the worker
>[status:status]
>
># Uri mapping
>[uri:/jkstatus/*]
>worker=status:status
>
># Uri mapping
>[uri:wwwwbdevweb5.guidestar.net/*]
>worker=ajp13:localhost:8009
>[uri:wwwwbdevweb5/*]
>worker=ajp13:localhost:8009
>
>
>My jk2.properties:
>
>handler.list=channelSocket,request
>channelSocket.port=8009
>
>--Angus
>
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