Forum Discussion

Matt_Breedlove_'s avatar
Matt_Breedlove_
Icon for Nimbostratus rankNimbostratus
Apr 18, 2009

Feedback on multi-pool irule

Please provide some feed back on this irule which is mean to relativley evenly distribute inbound traffic thgrough a single VS across 2 pools of servers depending on which pool has more active members...
application delivery
dev
devops
iRules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Apr 20, 2009
In a quick test with a VIP pointing to a pool with no active members, LB_FAILED is triggered immediately. If you take the monitor off the pool, LB_FAILED isn't triggered immediately. See the LB_FAILED wiki page for details on this (Click here).

 

 

So assuming you always have a valid monitor associated with the pool, I don't think you need to check the pool status in HTTP_REQUEST. But it would be good to do load testing of any rule that will see heavy use.

 

 

Aaron