For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

mfkk531_168091's avatar
mfkk531_168091
Icon for Nimbostratus rankNimbostratus
Feb 05, 2015

Best Load Balancing Method to use with Session Cookie Persistence?

Hi All, I have VS with cookie persistence and RR lb method. I'm using a http profile but not onceconnect (as yet) I'm running into a situation where the server team is reporting that apache server s...
application delivery
design
LTM
management
performance
JD1's avatar
JD1
Icon for Altostratus rankAltostratus
Feb 05, 2015

Hi Fasahat,

 

Are you using these servers in multiple pools? Are you using any fallback persistence method?

 

Perhaps consider using a load balancing method that takes into account the performance of your back end servers (observed,fastest,predictive), or even least connections based on node (if node is used multiple pools).

 

If OneConnect was enabled, I wouldn't expect it to affect your load balancing, just the communication LTM->Backend.

 

Also check to true up the results your server teams are telling you with the persistence statistics... Statistics > Module Statistics > Local Traffic > Persistent Records.

 

Do you see 100 versus 500 persistence records for the nodes affected?

 

Do the pool(s) statistics reflect the results or information from the server teams, in respect of current connections?

 

Just some suggestions of what I'd look at initially.

 

I suppose you could be unlucky in that one server had a lot of users who've closed their browser and others continued usage (if cookie persistence isn't set to expire until session end).