Pool member failback

Hi guys,

the following irule logic inspired by some of the comments above, seems a bit neater and should do the trick. You will need to adjust the pool names and pool member counts as required, and you can of course perform more complex calculations if you prefer.

I did some basic testing, but i can't promise i caught all potential errors, so make sure to give it a whirl in a test environment first.

when RULE_INIT {
    set static::pp "webpool" 
    set static::bp "backupwebpool" 
    set static::flag "flag"
}

when CLIENT_ACCEPTED {
    if { [table lookup $static::flag] eq "backup" && [active_members $static::pp] < 1 } {
        we're in backup mode 
        log local0. "backup mode"
        pool $static::bp

    }elseif { [active_members $static::pp] >= 1} {
       active mode
        log local0. "going back to active mode"
        table set $static::flag "active"
        pool $static::pp

    }else {
        backup mode needs to be enabled
        log local0. "enabling backup mode"
        table set $static::flag "backup"
        pool $static::bp
    }
}