irule to log slow and/or tcp profile timed out requests to backend

Hi Ingard,

of course, you can also include other events and/or other variables to the log output.

Here is a quick sample using the LB_SELECTED event to include the [LB::server addr] of the selected pool member...

when RULE_INIT {
    set static::timeout 10000  ; msec
}
when LB_SELECTED {
    set debug(request_url) "[HTTP::host][HTTP::uri]"
    set debug(server_addr) "[LB::server addr]"
    set debug(id) [after $static::timeout {
            log local0.warn "$static::timeout msec timeout reached on Node \"$debug(server_addr)\" for \"$debug(request_url)\""
    }]
}
when HTTP_RESPONSE {
    after cancel $debug(id)
    unset -nocomplain debug
}
when CLIENT_CLOSED {
    if { [info exist debug(request_url)] } then {
        log local0.warn "Connection closed without HTTP response on Node \"$debug(server_addr)\" for \"$debug(request_url)\""
    }
}

Cheers, Kai