Hello,

is any particular reason to do the processing after t_relay() ? You can do the save before, since it is the same register message.

Also, are you getting this in a testing environment while using tools like sipp to simulate traffic?

Starting with 3.0, the AVPs (which are associated with the message and transaction in this case) become available in onreply_route[3] (in 1.x that was a config option for tm module), so if it is fast reply, it my happen that the avps are no longer available in the script after t_relay().

As a recommended rule, it is better to avoid using avps after t_relay() - this function creates the transaction and forwards the message. From there on, the avps are in the hands of tm module, which moves them to onreply_route or failure_route, depending on your config file.

Cheers,
Daniel

On 2/16/11 4:28 PM, Jijo wrote:

Hi Daniel,

Please find the code and corresponding error trace. This happens only for 1 subscriber randomly out of 2000 subscribers. This can be reproduced consistently also.

route(1)

{

:

:

:

        # -----------------------------------------------------------------
        # Registration handling dynamic endpoints
        # -----------------------------------------------------------------

        $avp(reg_contact)= $ct;
$var(reg_contact)= $ct;
        t_on_reply("3");

        if(!is_avp_set("$avp(reg_contact)"))
            xlog("L_ERR", "R1 - not set the reg_contact3 F=$fu T=$tu Ct=$ct IP=$si CI=$ci var_contact:$var(reg_contact)\n");

         # relay
         if(!t_relay_to("0x3"))
        {
            xlog("L_ERR", "R1/R10 - Registration failed - M=$rm F=$fu T=$tu CT=$ct IP=$si CI=$ci\n");
            append_to_reply("Warning: 399 $Ri - R1 - Registration failed: fail in relay in R10.\r\n");
            sl_reply_error();
            exit;
        }

        if(!is_avp_set("$avp(reg_contact)"))
            xlog("L_ERR", "R1 - not set the reg_contact4 F=$fu T=$tu Ct=$ct IP=$si CI=$ci var_contact:$var(reg_contact)\n");

        xlog("L_ERR", "R1 - Saving Registration-2 save to location F=$fu T=$tu Ct=$ct IP=$si CI=$ci reg_ct:$avp(reg_contact)\n");

        if(!isflagset(28) && is_avp_set("$avp(reg_contact)")) # Check if we need to save it in location table
        {
            if(!save("location","0x02"))
            {
                xlog("L_ERR", "R1 - Location save for Registration failed - M=$rm F=$fu T=$tu IP=$si CT=$ct\n");
            }
        }

LOGS for the error condtion.

2011-02-15T12:19:30-05:00 [err] sipserver: ERROR: <script>: R1 - not set the reg_contact4 F=sip:5614510478@10.235.86.54:5060;transport=UDP T=sip:5614510478@10.235.86.54:5060;transport=UDP Ct=<sip:5614510478@10.235.204.5:5060> IP=10.235.204.5 CI=119ac328-4cceb0a-13c4-7fa55-76a2903a-7fa55 var_contact:<sip:5614510478@10.235.204.5:5060>
2011-02-15T12:19:30-05:00 [err] sipserver: ERROR: <script>: R1 - Saving Registration-2 save to location F=sip:5614510478@10.235.86.54:5060;transport=UDP T=sip:5614510478@10.235.86.54:5060;transport=UDP Ct=<sip:5614510478@10.235.204.5:5060> IP=10.235.204.5 CI=119ac328-4cceb0a-13c4-7fa55-76a2903a-7fa55 reg_ct:<null>
On Wed, Feb 16, 2011 at 5:02 AM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:
Hello,

it is not clear for me what you tried to do. Can you paste here the parts of the config file that are relevant for the case? Do you relay the REGISTER?

Cheers,
Daniel

On 2/16/11 1:17 AM, Jijo wrote:
Hi All,

On register we store the contact in an avp variable and do a t_relay(). After t_relay() the $avp variable becomes null.
I printed the value before after t_relay() to determine this behavior.
This happens only on registration load test around 2000 subcribers with ( 4 REGISTER/sec). This happens only for one subscriber out of 2000 subscribers.

I did the similar test with $var and its working fine.

Anybody observed similar behavior with avp? This was working in kamailio 1.4 version. We did the upgrade recently to 3.1.0 and started observing this issue.

How do we debug this issue.?

Thanks
Jijo
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-- 
Daniel-Constantin Mierla
http://www.asipto.com

-- 
Daniel-Constantin Mierla
http://www.asipto.com