Sticky sessions on Alteon Application Switch 2208
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Posted by smotsie on January 12, 2007, 9:26 am
Please log in for more thread options We have an Alteon Application Switch 2208, running software Version 21.0.4 and we have a problem with session management. I want any user connecting to our web app. to be allocated a server by almost any algorithm (least used, round robin etc.) and then to stay on that server. At present every single request seems to go to alternate servers, which makes our login asp fail, as the servers are looking for a session variable to be set (we DON'T want to re-write the app, far too much work involved) Does anyone know how to enable sticky session support on this hardware / software combo? Have we bought the wrong system? (I _really_ hope not!!!) For info the group is configured thus: Current real server group 210: name , metric roundrobin, backup none, realthr 0 health tcp, content DSR VIP health: enabled IDS Group: disabled IDS rport: any IDS flood: disabled adv health: real servers: 162: 192.168.211.162, enabled, name , weight 1, timeout 40 mins, maxcon 200000 backup none, inter 2, retry 4, restr 8 remote disabled, proxy enabled, submac disabled cookie assignment server: disabled exclusionary string matching: disabled 163: 192.168.211.163, disabled, name , weight 1, timeout 40 mins, maxcon 200000 backup none, inter 2, retry 4, restr 8 remote disabled, proxy enabled, submac disabled cookie assignment server: disabled exclusionary string matching: disabled real ports: http: vport http virtual server: 210, 192.168.208.210, enabled | |||||||||||||
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Posted by Dophi on January 14, 2007, 12:57 am
Please log in for more thread options problem. smotsie wrote: | |||||||||||||
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Posted by smotsie on January 16, 2007, 7:40 am
Please log in for more thread options
Dophi wrote: > Change the metric to "hash" or "minmiss" will probably solve your
> problem. Thanks for that, Dophi. It worked using "minmiss". I don't understand why "roundrobin" works this way, but at least the problem is solved. | |||||||||||||
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Posted by angler on January 18, 2007, 1:59 am
Please log in for more thread options Because that is what round robin does. Each TCP session is sent to a
different server in turn. It doesn't matter if each session is from the same client. smotsie wrote: > Dophi wrote:
> > Change the metric to "hash" or "minmiss" will probably solve your
> > problem. >
> Thanks for that, Dophi. It worked using "minmiss". I don't understand > why "roundrobin" works this way, but at least the problem is solved. | |||||||||||||
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>
> We have an Alteon Application Switch 2208, running software Version
> 21.0.4 and we have a problem with session management. I want any user
> connecting to our web app. to be allocated a server by almost any
> algorithm (least used, round robin etc.) and then to stay on that
> server. At present every single request seems to go to alternate
> servers, which makes our login asp fail, as the servers are looking for
> a session variable to be set (we DON'T want to re-write the app, far
> too much work involved)
>
> Does anyone know how to enable sticky session support on this hardware
> / software combo? Have we bought the wrong system? (I _really_ hope
> not!!!)
>
> For info the group is configured thus:
>
> Current real server group 210:
> name , metric roundrobin, backup none, realthr 0
> health tcp, content
> DSR VIP health: enabled
> IDS Group: disabled IDS rport: any IDS flood: disabled
> adv health:
> real servers:
> 162: 192.168.211.162, enabled, name , weight 1, timeout 40 mins,
> maxcon 200000
> backup none, inter 2, retry 4, restr 8
> remote disabled, proxy enabled, submac disabled
> cookie assignment server: disabled
> exclusionary string matching: disabled
> 163: 192.168.211.163, disabled, name , weight 1, timeout 40 mins,
> maxcon 200000
> backup none, inter 2, retry 4, restr 8
> remote disabled, proxy enabled, submac disabled
> cookie assignment server: disabled
> exclusionary string matching: disabled
> real ports:
> http: vport http
> virtual server: 210, 192.168.208.210, enabled