Hello,

yes - this is some concern I also had. In some cases you might be come around 
by just registering the proper call-back (like the uac module does). But of 
course, you don't have the transaction anymore.

I also found some more issues in the code related to this change. The DB 
insert/update code holds some assumption on the dialog flags and therefore it 
does not work without modification of this path. And this needs some more 
refactoring, therefore I reverted the patch for now in git master.

Cheers,

Henning

-----Original Message-----
From: sr-dev <[email protected]> On Behalf Of Ovidiu Sas
Sent: Saturday, June 13, 2020 9:04 PM
To: Kamailio (SER) - Development Mailing List <[email protected]>
Subject: Re: [sr-dev] dialog: reason behind not storing early state dialogs in 
db

One observation here: early dialogs are bound to the initial INVITE 
transaction. For this reason, early dialogs should not be restored from db 
because the transaction is no longer present (during failover or restart).

Thanks,
Ovidiu

On Fri, Jun 12, 2020 at 3:35 PM Henning Westerholt <[email protected]> wrote:
>
> Hi Victor,
>
> thanks for the feedback, I will also do some more tests.
>
> Cheers,
>
> Henning
>
> -----Original Message-----
> From: sr-dev <[email protected]> On Behalf Of Victor 
> Seva
> Sent: Friday, June 12, 2020 2:34 PM
> To: Kamailio (SER) - Development Mailing List 
> <[email protected]>
> Subject: Re: [sr-dev] dialog: reason behind not storing early state 
> dialogs in db
>
> Hi Henning,
>
> On 6/12/20 10:31 AM, Henning Westerholt wrote:
> > added with 37d83a5838a50350. Feedback and additional testing are of 
> > course welcome.
>
> Applied 37d83a5838a50350 but I don't see any insert to the db until dialog is 
> confirmed.
>
> ``modparam("dialog","db_mode", 1)`` is in the config
>
> ```
> Jun 12 13:47:01 sp1 proxy[31630]: NOTICE: DEFAULT_ROUTE <script>: New request 
> on proxy - M=INVITE R=«sip:[email protected]» 
> F=«sip:[email protected]» T=«sip:[email protected]» 
> IP=«192.168.1.123»:«5068» («127.0.0.1»:«5060») ID=«ephgtzmqykl 
> [email protected]» UA='Twinkle/1.10.1' 
> DESTIP=«127.0.0.1»:«5062» Jun 12 13:47:01 sp1 proxy[31630]: NOTICE: 
> DEFAULT_ROUTE <script>: Sending reply S=100 Trying M=INVITE 
> fs='«127.0.0.1»:«5062»' du='«127.0.0.1»:«5060»' - 
> R=«sip:[email protected]» 
> ID=«[email protected]» UA='Twinkle/1.10.1 '
> ...
> Jun 12 13:47:01 sp1 proxy[31630]: DEBUG: ROUTE_DLG_MANAGE dialog 
> [dlg_hash.c:480]: build_new_dlg(): new dialog on hash 380 ...
> Jun 12 13:47:01 sp1 proxy[31630]: DEBUG: ROUTE_DLG_MANAGE dialog 
> [dlg_db_handler.c:835]: update_dialog_dbinfo_unsafe(): updated 4 vars for dlg 
> [380:4617] ...
> Jun 12 13:47:01 sp1 proxy[31630]: DEBUG: ROUTE_DLG_MANAGE dialog 
> [dlg_profile.c:536]: set_current_dialog(): setting current dialog [380:4617] 
> ...
> Jun 12 13:47:01 sp1 proxy[31630]: NOTICE: DEFAULT_ROUTE <script>: Sending 
> reply S=100 Trying M=INVITE fs='«127.0.0.1»:«5062»' du='«127.0.0.1»:«5060»' - 
> R=«sip:[email protected]» 
> ID=«[email protected]» UA='Twinkle/1.10.1'
> ...
> Jun 12 13:47:01 sp1 proxy[31634]: NOTICE: REPLY_ROUTE_NAT <script>: NAT-Reply 
> - S=180 - Ringing M=INVITE IP=«192.168.1.123»:«5068» («127.0.0.1»:«5080») 
> ID=«[email protected]» UA='<null>' 
> DESTIP=«127.0.0.1»:«5062» ...
> Jun 12 13:47:01 sp1 proxy[31634]: DEBUG: REPLY_ROUTE_NAT tmx [t_var.c:539]: 
> pv_get_tm_reply_code(): reply code is <180> ...
> Jun 12 13:47:01 sp1 proxy[31634]: DEBUG: REPLY_ROUTE_NAT dialog 
> [dlg_hash.c:789]: dlg_lookup_mode(): dialog id=4617 found on entry 380 ...
> Jun 12 13:47:01 sp1 proxy[31634]: DEBUG: <null> dialog 
> [dlg_hash.c:1264]: next_state_dlg(): dialog 0x7fd87d250e88 changed 
> from state 1 to state 2, due event 2 (ref 2) Jun 12 13:47:01 sp1 
> proxy[31634]: DEBUG: <null> dialog [dlg_cb.c:271]: 
> run_dlg_callbacks(): dialog=0x7fd87d250e88, type=256 ```
>
> Nothing gets written in the dialog table until
>
> ```
> Jun 12 13:47:25 sp1 proxy[31634]: NOTICE: REPLY_ROUTE_NAT <script>: NAT-Reply 
> - S=200 - Answering M=INVITE IP=«192.168.1.123»:«5068» («127.0.0.1»:«5080») 
> ID=«[email protected]» UA='<null>' 
> DESTIP=«127.0.0.1»:«5062» ...
> Jun 12 13:47:25 sp1 proxy[31634]: DEBUG: <null> dialog [dlg_hash.c:1264]: 
> next_state_dlg(): dialog 0x7fd87d250e88 changed from state 2 to state 3, due 
> event 3 (ref 2) ...
> Jun 12 13:47:25 sp1 proxy[31634]: NOTICE: dialog:start <script>: 
> [dialog:start] 
> lua_dlg_callid:[«[email protected]»]  - 
> R=«<null>» ID=«[email protected]» UA='<null>'
> ...
> Jun 12 13:47:25 sp1 proxy[31634]: DEBUG: <null> dialog 
> [dlg_handlers.c:512]: dlg_onreply(): dialog 0x7fd87d250e88 confirmed 
> (ACK pending) Jun 12 13:47:25 sp1 proxy[31634]: DEBUG: <null> dialog 
> [dlg_handlers.c:259]: populate_leg_info(): leg(1) route_set [], 
> contact [sip:127.0.0.1:5080;transport=udp], cseq [] and bind_addr 
> [udp:127.0.0.1:5062] Jun 12 13:47:25 sp1 proxy[31634]: DEBUG: <null> 
> dialog [dlg_db_handler.c:835]: update_dialog_dbinfo_unsafe(): updated 
> 19 vars for dlg [380:4617] Jun 12 13:47:25 sp1 proxy[31634]: DEBUG: 
> <null> dialog [dlg_db_handler.c:874]: update_dialog_dbinfo_unsafe(): 
> sock_info is udp:127.0.0.1:5062 ```
>
>
> Cheers,
> Victor
>
> _______________________________________________
> Kamailio (SER) - Development Mailing List [email protected] 
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-dev



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