07-18-2003 01:25 AM
Hi all,
let me explain my testbed:
- 16 frontend proxy servers
- 72 backend application servers (AS)
requests to the proxy servers are first balanced from a couple of css; after that the new request originating from the proxy is balanced between the 72 backend AS from a couple of CSM.
I instructed the proxy to populate the X-Forwarded-For header field so that the CSM can still see the client IP in the header.
How can I configure some sort of stickyness on the CSM to meet these requirements:
1) the 72 AS are equally loaded;
2) Request from the same client are directed to the same AS;
Thanks in advance.
Fausto Franceschini
07-20-2003 02:02 AM
unfortunately, this is not possible.
First reason is that the header match function, can't match a X-forward header currently.
What I would suggest is do cookie sticky if your servers can generate a cookie or use the 'cookie insert' feature of the csm (the command is 'sticky 1 cookie
Regards,
Gilles.
07-21-2003 12:05 AM
Sorry.
I need to correct what I said.
You can stick on any header field with the command
'sticy <1-255> header
Gilles.
07-21-2003 03:15 AM
Thanks Gilles,
I'll try this configuration as soon as possible.
Fausto
07-22-2003 07:32 AM
Fausto,
sorry for this, but I was in touch with our developper about the command I gave you and unfortunately I have to say that the command is there, but the code not :-(
It means the command is useless.
This command will only work starting with version 3.3
Gilles.
07-23-2003 12:09 AM
Hi Gilles,
do you know when release 3.3 will be available?
Fausto
07-23-2003 01:35 AM
6 to 12 months I would say.
3.2 is just coming out now.
Gilles.
07-21-2003 03:18 AM
Is there something similiar on the CSS as well?
Thanks
Fausto
07-21-2003 06:18 AM
this for sure, the answer is NO.
Same workaround as I gave you earlier with cookie.
Gilles.
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