[SR-Users] is_method not matching message type KDMQ breaking DMQ bus. (master branch)

[Joel Serrano]

Hi Asgaroth,

I'm using dmq and I haven't seen a msg get passed this:

    # Handles DMQ messages
    if (is_method("KDMQ")) {
        dmq_handle_message();
    }

That said, just to make sure it's not some work-in-progress happening on
master branch, give it a try on latest stable release (v5.1.4) to see if
you find the same behavior. I haven't tried on master but on v5.1.4 I'm not
seeing that behavior.

Are you manually replicating stuff using dmq functions or are you taking
advantage of auto-replication using modparam enable_dmq=1 on certain
modules?

Joel.




On Tue, Jul 31, 2018 at 9:01 AM, Asgaroth <00asgaroth00 at gmail.com> wrote:

> Hi All,
>
> I've come across and oddity whereby my is_method("KDMQ") checks are not
> matching.
>
> I'm testing with kamailio master:
>
> version: kamailio 5.2.0-dev6 (x86_64/linux) a16272
> flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, DISABLE_NAGLE,
> USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC,
> TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT,
> USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST,
> HAVE_RESOLV_RES
> ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144 MAX_URI_SIZE 1024,
> BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
> poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
> id: a16272
> compiled on 15:27:21 Jul 31 2018 with gcc 7.3.1
>
> Sample routing logic:
>
> request_route {
>     route("InitialMessageChecks");
>     exit;
> }
>
>
> route[InitialMessageChecks] {
>     xlog("L_INFO", "Received message type $rm from $si:$sp on $Ri:$Rp");
>
>     if ( is_method("KDMQ") ) { xlog("L_INFO", "KDMQ check passed."); }
>     if ( is_method("OPTIONS") ) { xlog("L_INFO", "OPTIONS check passed.");
> }
>     if ( is_method("SUBSCRIBE") ) { xlog("L_INFO", "SUBSCRIBE check
> passed."); }
>
> }
>
> In the logs I am only receiving the 1st log line in the initial message
> checks route for message types of KDMQ, eg:
>
> INFO: <script>: Received message KDMQ from 1.1.1.1:5060 on 1.1.1.2:5060
> INFO: <script>: Received message KDMQ from 1.1.1.3:5060 on 1.1.1.2:5060
>
> I never seem to hit the is_method check log line when the method type is
> KDMQ.
>
> I do see the options/subscribe logs though:
>
> INFO: <script>: OPTIONS check passed.
> INFO: <script>: SUBSCRIBE check passed.
>
> nothing for KDMQ.
>
> Reason for asking is: this check never matches and breaks the dmq bus:
>
> if ( is_method("KDMQ") ) {
>     if ( dmq_is_from_node() ) {
>         dmq_handle_message();
>         exit;
>     } else {
>         exit;
>     }
> }
>
> Any thoughts, or am I going crazy :)
>
> Thanks
>
>
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>
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