Dynamic Pool assignment with APM in 10.2.4

ACCESS_POLICY_AGENT_EVENT is triggered only once.

In version 11, APM variable session.assigned.pool is set to the pool member and read for every connection related to the APM session.

If you want the same behavior in version 10, assign pool name in a custom variable and assign the following irule to the VS:

when HTTP_REQUEST {
    set varpool [ACCESS::session data get session.custom.pool]
    if {$varpool eq ne ""} {
        pool $varpool
    }
 }