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

Hi Ingard,

unfortunately there is no way to access TCP flags (PSH, RST, etc.) using iRules.

But you may try this snipped as a starting point to identify slow server responses...

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

Cheers, Kai