Hello,
what is your operating system? Do you have selinux enabled?
Can you add an xlog() message at the top of request_route block and see
if the message is printed in syslog when you see the packet coming on
the network? This ensures that kamailio is receiving it.
If you are familiar with gdb, when one port is not responding, do:
kamctl ps
See the pid of the processes listening on that port. Select one and do:
gdb /path/to/kamailio PID
bt full
That will show what that process is doing at that moment. Send the
output here.
Cheers,
Daniel
On 11/05/15 20:34, Karthik Srinivasan wrote:
Hi Daniel,
Thanks for the response.
We are not using the pike module.
The requests to a port are not dismissed; rather, in most cases,
there is a delay in response from kamailio. Also, the delay is not
restricted to any particular message request. it happens for any type
of request. (register; subscribe; etc...).
But those same requests, if pointed to different port, have no issues.
Also, to note, I am not restarting kamailio when the issue occurs on a
particular port. kamailio is kept running and pointing traffic to a
non-problematic port seems fine.
Karthik
On Mon, May 11, 2015 at 12:41 PM, Daniel-Constantin Mierla
<miconda(a)gmail.com <mailto:miconda@gmail.com>> wrote:
Hello,
do you have pike module loaded and enabled?
Are all requests to a port dismissed or just some of them?
Cheers,
Daniel
On 11/05/15 19:20, Karthik Srinivasan wrote:
Hi,
I have encountered an issue with kamailio and am hoping someone
on this email distro can help:
Here's my setup and description of the issue:
I am running kamailio version 3.1.4.
I have the kamailio process bound to ports 5060, 5070, and 5090.
all UDP.
I have several client devices registering to the kamailio registrar.
The issue I have encountered is this:
SIP registrations to port 5070 are fine for a period of time; by
fine I mean clients send SIP registration requests to
kamailio; and kamailio responds promptly to the request. by
period of time I mean (this could be somewhat random) that for10
hours; 12 hours; 1 hour; that kamailo has no issue processing
requests. after this random time period has elapsed, kamailo
isn't able to respond to sip registrations and other messages in
timely manner; to the point where the clients timeout and have
to resend their registration requests. at times, kamailio does
respond to the requests (with a significant delay) and at other
times no response is received by the client. the user experience
is intermittent registration delays/failures.
The same behavior is seen on port 5090.
I have not encountered the issue yet on port 5060.
During times when kamailio isn't able to respond timely to
requests on a particular port, requests to other ports are
responded to timely.
for ex: if port 5070 encounters the issue; port 5060 and 5090
seem fine. meaning, I can point my client devices to 5060 or
5090 and kamailio processes the requests timely.
I have studied a tcp dump on the server end (kamailio side) and
noticed that the network layer shows the messages from the client
to be received timely while kamailio is encountering this
issue. which indicates to me that it probably isn't a network
lag related issue.
Something at the application layer is probably causing kamailio
to not respond timely.
Furthermore the issue resolves itself after a period of time;
that is, kamailio begins to respond to messages timely on the
problematic port.
I haven't had a chance yet to determine exactly how long it takes
to recover. it certainly takes some time though. at least 30
minutes; maybe more.
I can also state that the load on the kamailio system is
minimal. far below than what the performance metrics state it
can handle.
Has anyone encountered this issue where kamalio isn't responding
to registration and other requests timely on a particular port
but does so fine for other ports?
Any help on this would be appreciated.
Thanks,
Karthik
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Daniel-Constantin Mierla
http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> -
http://www.linkedin.com/in/miconda
Kamailio World Conference, May 27-29, 2015
Berlin, Germany -
http://www.kamailioworld.com
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