From: Nicolas Maury (nicolasmaury2001IZZATyahoo.com)
Date: Thu May 22 2003 - 15:54:23 EDT
Thank you for you answer, I checked logs but we haven't got any real server "flapping".
Actually, in our first configuration, we had 2 groups: one for HTTP and one for HTTPS with sslh health check and the problem occured.
I though that with 2 different groups, the Alteon wasn't able to maintain persistence. That's why I set up only one group.
I was wondering if that was a known bug, I didn't find anything related to that kind of problem in WebOS release notes (or maybe I didn't spend enough time looking for it :) ).
Apparently, the upgrade is my last solution.
Regards,
Nicolas
John S Anderson <ivanIZZATloudcloud.com> wrote:
the config looks ok. try one of the following:
1. change group 42 health check to icmp, then test
2. create group 43 with same reals with sslh health check
assign to service https, then test
3. upgrade webOS code to something that's supported
if you have syslog configured, see if either of those reals
are bouncing. also, check the real's health checking
parameters: inter and retry.
-John
> -----Original Message-----
> From: owner-lb-lIZZATvegan.net [mailto:owner-lb-lIZZATvegan.net]On Behalf Of
> Nicolas Maury
> Sent: Thursday, May 22, 2003 5:25 AM
> To: lb-lIZZATvegan.net
> Subject: [load balancing] Alteon hash and HTTPS
>
>
> Hello all,
>
> I have a problem with an Alteon, I've got a VIP
> configured like this :
>
> /cfg/slb/group 42
> metric hash
> backup none
> healt http
> realthr 0
> add 55
> add 60
> /cfg/slb/virt 42
> ena
> vip A.B.C.D
> /cfg/slb/virt 42/service http
> group 42
> /cfg/slb/virt 42/service https
> group 42
>
> With HTTPS, randomly some sessions assigned to real
> server 55 "jump" to real server 60 (and vice-versa),
> persistence is broken and our application is
> disrupted.
>
> We can't use the pbind sslid because we had apparently
> issues with some browsers that renegotiate SSL session
> ID during user session.
> I tried to use the command "pbind clientip" but
> results are the same.
>
> I thought with hash method an HTTPS session would stay
> on the same real server. Do we have a
> misconfiguration ? or is that a bug ? (We are running
> WebOS 8.0.60.9, with DAM and WMA enabled).
>
> Regards,
>
> Nicolas Maury
>
>
>
>
>
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