Hi Daniel,
Thank you for this advice.. I'm still struggling to get it work, still no luck even with t_flush_flags() immediately after setflag(). Maybe I will try to reproduce it during the weekend with kamailio default config. FTR the version used is kamailio 3.3.1.
On 09/27/2012 05:17 PM, Daniel-Constantin Mierla wrote:
Hello,
you can try after you set the flag you wanted to be in transaction, to be sure it gets there.
Cheers, Daniel
On 9/26/12 7:43 PM, Andrew Pogrebennyk wrote:
Hi Daniel,
No, I don't. Thanks for the tip. Could you advice where t_flush_flags() should be placed? I tried in branch_route and immediately before t_relay(), it didn't help..
On 09/26/2012 05:53 PM, Daniel-Constantin Mierla wrote:
Hello,
do you use t_flush_flags()?
http://kamailio.org/docs/modules/3.3.x/modules_k/tmx.html#id2543767
Cheers, Daniel
On 9/26/12 3:30 PM, Andrew Pogrebennyk wrote:
Hi,
I have found recently that in order to detect retransmits I have to create a transaction explicitly when the request comes in: force_rport(); if(!t_check_trans()) t_newtran(); sl_send_reply("100", "Trying"); xlog("L_INFO", "New request - $ci\n");
it appears like there are carriers or UAs that do not honor the T1 retransmission interval retransmit the INVITE sooner than proxy creates a transaction in t_relay(). And since we are counting concurrent calls, we count the same call multiple times, which is not good.
But with this patch we've faced another sporadic problem - if the transaction is created beforehand the accounting record is lost.. we use acc_db mode and set flag to account the transaction. And there are no errors in kamailio log but no insert into acc in mysql binlog either. I wasn't successful reproducing it in the lab systems with identical setup.
Is anybody here perhaps aware of some limitation in acc module or callbacks which makes a transaction created beforehand not accountable?
On a related note, it could make sense to create a transaction implicitly if dlg_manage() is called to avoid counting same call many times, I just don't know yet how common this issue is in real life.
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