Using "table" iRule command inside the ACESS_SESSION_CLOSED APM event

This article doesn't have a whole lot of information, but it seems like what you have should be working to me (with the limited amount of knowledge I have about the system).

I would think you'd be ok here but something to think about: "Important: This event is triggerred outside of flow context (similar to RULE_INIT) when a session goes away. The iRule commands which require a flow context (for e.g. TCP, HTTP and SSL commands) can not be used in this event."

If you use a subtable does it make a difference? If we're going down the bug path... then little changes like this might get you around that. Not saying it's a bug... but if it is, then perhaps this may help.

when ACCESS_SESSION_STARTED {
    if { [table lookup -notouch -subtable  "toto"] != {} } {
        log local0. "found !" 
    } else {
        log local0. "not found !" 
    }
}
when ACCESS_SESSION_CLOSED { 
    table add -subtable  "toto" "data" 1800
    log local0. "adding toto to the shared table !"
}