1 Jul
2019
1 Jul
'19
12:32 p.m.
Hello,
We are using DMQ module to sync dialogs between 3 Kamailio boxes.
We are using last Kamailio version (5.2.3).
From our understanding, the state
DLG_STATE_CONFIRMED_NA is not synced over DMQ
(https://github.com/kamailio/kamailio/blob/a84a3ea618f0e602a8892c37fce7f4e72…)
With containerized environement, the ACK's can go to any Kamailio instance, which lead
to :
On first box :
-> INVITE received -> Dialog created + KDMQ sent (state
DLG_STATE_UNCONFIRMED)
-> 180 | 183 received -> Dialog updated + KDMQ sent (state DLG_STATE_EARLY)
-> 200 received -> Dialog updated + KDMQ NOT sent
(DLG_STATE_CONFIRMED_NA)
On second box :
-> ACK received :
- next_state_dlg(): bogus event 6 in state 2 for dlg
- dialog not updated
- KDMQ with state DLG_STATE_CONFIRMED not sent
On first box, after timeout :
-> After timeout :
- dialg with incorrect timeouts (since box2 didn't send dialog update)
- tm sends BYE in both ways
- bye_reply_cb(): inconsitent dlg timer data on dlg
We see two solutions :
- We add DLG_STATE_CONFIRMED_NA to states we sync on dlg_dmq_replicate_action
- We manage to route the ACK on the same instance that received first INVITE (could be
tricky)
Which one is preferable ?
Kind regards,
Mathieu Bodjikian
2 Jul
2 Jul
2:21 p.m.
Hello,
I haven't worked on the dmq replication for dialogs, so not sure why that
state is not replicated, but I think that would be the right solution if
the lack of replication creates issues.
Cheers,
Daniel
On Mon, Jul 1, 2019 at 12:34 PM Mathieu Bodjikian <
mathieu.bodjikian(a)corp.ovh.com> wrote:
Hello,
We are using DMQ module to sync dialogs between 3 Kamailio boxes.
We are using last Kamailio version (5.2.3).
From our understanding, the state DLG_STATE_CONFIRMED_NA is not synced
over DMQ (
https://github.com/kamailio/kamailio/blob/a84a3ea618f0e602a8892c37fce7f4e72…
)
With containerized environement, the ACK's can go to any Kamailio
instance, which lead to :
On first box :
-> INVITE received -> Dialog created + KDMQ sent (state
DLG_STATE_UNCONFIRMED)
-> 180 | 183 received -> Dialog updated + KDMQ sent (state
DLG_STATE_EARLY)
-> 200 received -> Dialog updated + KDMQ NOT sent
(DLG_STATE_CONFIRMED_NA)
On second box :
-> ACK received :
- next_state_dlg(): bogus event 6 in state 2 for dlg
- dialog not updated
- KDMQ with state DLG_STATE_CONFIRMED not sent
On first box, after timeout :
-> After timeout :
- dialg with incorrect timeouts (since box2 didn't send dialog
update)
- tm sends BYE in both ways
- bye_reply_cb(): inconsitent dlg timer data on dlg
We see two solutions :
- We add DLG_STATE_CONFIRMED_NA to states we sync on
dlg_dmq_replicate_action
- We manage to route the ACK on the same instance that received first
INVITE (could be tricky)
Which one is preferable ?
Kind regards,
Mathieu Bodjikian
_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users(a)lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
6:37 p.m.
Hello Mathieu,
I think as well that the right solution would be to add the missing states to the
synchronisation. I could imagine that they maybe would be left out because of the
additional implementation effort.
If you create a pull request we would happy to review and apply, if it fits.
Cheers,
Henning
Am 01.07.19 um 12:32 schrieb Mathieu Bodjikian:
Hello,
We are using DMQ module to sync dialogs between 3 Kamailio boxes.
We are using last Kamailio version (5.2.3).
From our understanding, the state
DLG_STATE_CONFIRMED_NA is not synced over DMQ
(https://github.com/kamailio/kamailio/blob/a84a3ea618f0e602a8892c37fce7f4e72…)
With containerized environement, the ACK's can go to any Kamailio instance, which lead
to :
On first box :
-> INVITE received -> Dialog created + KDMQ sent (state
DLG_STATE_UNCONFIRMED)
-> 180 | 183 received -> Dialog updated + KDMQ sent (state DLG_STATE_EARLY)
-> 200 received -> Dialog updated + KDMQ NOT sent
(DLG_STATE_CONFIRMED_NA)
On second box :
-> ACK received :
- next_state_dlg(): bogus event 6 in state 2 for dlg
- dialog not updated
- KDMQ with state DLG_STATE_CONFIRMED not sent
On first box, after timeout :
-> After timeout :
- dialg with incorrect timeouts (since box2 didn't send dialog update)
- tm sends BYE in both ways
- bye_reply_cb(): inconsitent dlg timer data on dlg
We see two solutions :
- We add DLG_STATE_CONFIRMED_NA to states we sync on dlg_dmq_replicate_action
- We manage to route the ACK on the same instance that received first INVITE (could be
tricky)
Which one is preferable ?
Kind regards,
Mathieu Bodjikian
_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://skalatan.de/services
1769
days inactive
1770
days old
2 comments
3 participants
participants (3)
-
Daniel-Constantin Mierla -
Henning Westerholt -
Mathieu Bodjikian