Ryan-
The logic of the balancer requires a "route" to be defined in the balancer.
Basically the balancer code gets your sessionid via the "stickysession"
param then uses this value to find the right worker. If the sessionid
contains a "." then only the part after the "." is considered as the route.
In your case you have no "." in the cookie values so you should have a
config like below. Note the "app1" and "app2" routes in the respective
members of the balancer.
<Location />
ProxyPass balancer://cluster/ stickysession=BIG
Allow from all
</Location>
<Proxy balancer://cluster>
BalancerMember http://vhost1 route=app1
BalancerMember http://vhost2 route=app2
</Proxy>
Hope that helps,
Ryan
-----Original Message-----
From: Ryan Johnson [mailto:[EMAIL PROTECTED]
Sent: Wednesday, March 21, 2007 11:11 PM
To: [email protected]
Subject: Re: [EMAIL PROTECTED] Sticky sessions with proxy_balancer
Ryan (The Greater),
No luck.
I have two apache virtual hosts behind the load balancer, each setting a
cookie called BIG, one to a value of app1 and the other to a value of app2.
In the debug output I see the balancer module recognizing these values, but
it continues to split the requests across both servers rather than staying
on one server. I know with a F5 BIGIP you call the cookies by a certain name
and set the values to an encoding of their ip and port.
Any ideas?
Thanks,
Ryan (The True Lesser)
Ryan Murray wrote:
> Ryan-
>
> Yes it works for sure in httpd-2.2.4 but pay attention that this
> parameter is case sensitive. So if your cookie is "JSESSIONID" it
> must be written in upper case like this in the config file. Note for
> Java the cookie is "JESESSIONID" whereas the path parameter is
> ";jsessionid" (lc) and mod_proxy balancer doesn't handle this as it
> checks for the same case sensitive name for both the path and the cookie.
>
> Turn your error log level to debug (LogLevel DEBUG in httpd.conf)and
> optionally do a tail -f <logfile> | grep "BALANCER" and you'll see
> when mod_proxy_balancer thinks it is getting a hit for the session param.
>
> If you are working with Java and need the dual case version I have a
> patched the source for httpd-2.2.4 to allow specifying a
> stickysessionpath param in the balancer config so it finds both Cookie and
path managed sessions.
>
> Cheers,
> Ryan (the lesser)
>
> -----Original Message-----
> From: Ryan Johnson [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, March 21, 2007 6:20 PM
> To: [email protected]
> Subject: [EMAIL PROTECTED] Sticky sessions with proxy_balancer
>
> Hey all,
>
> I am trying to get sticky sessions to work with mod_proxy_balancer,
> with no luck.
> I have set stickysession=COOKIENAME.
>
> Have not found any good doc on this? Anyone get this working?
>
> Thanks in advance,
> Ryan
>
>
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