[SR-Users] Kamailio 4.3.x location_attrs update issue

[Mridul B]

Hi,

We've noticed a case where the *location_attrs* table isn't updated when
there's an unexpected shutdown of a SIP device (here there'll be no
REGISTER message sent with expires=0).

We're using Kamailio v4.3.x

When the SIP device shuts down ungracefully. The location table is updated
using DELETE query
This is done by the timer which deletes the expired contacts, by default
the timer_interval is set as 60.

Here, the logs of auto-removal of expired contacts entries by the timer


> Feb 17 17:16:13 localhost kamailio[23273]: DEBUG: db_postgres
> [km_dbase.c:272]: db_postgres_submit_query(): sending query ok:
> 0x7f34969433c8 (1) - [delete from location where expires<'2017-02-17
> 17:16:14' AND expires<>'1970-01-01 00:00:00']
>


Feb 17 17:16:14 localhost kamailio[23272]: DEBUG: db_postgres
> [km_dbase.c:272]: db_postgres_submit_query(): sending query ok:
> 0x7f34969433c8 (1) - [delete from location where expires<'2017-02-17
> 17:16:15' AND expires<>'1970-01-01 00:00:00']




The delete operation is only on location table, shouldn't we have the same
implementation on the location_attrs table based upon ruid or username?

We're getting duplicate entries in the location_attrs table of the same sip
user after it registers.

But when the SIP device un-registers, the entries in the location as well
as in the location_attrs table is deleted

Feb 17 18:14:32 localhost kamailio[23249]: DEBUG: usrloc [ucontact.c:1725]:
> uldb_delete_attrs(): trying to delete location attributes
> Feb 17 18:14:32 localhost kamailio[23249]: DEBUG: db_postgres
> [km_dbase.c:272]: db_postgres_submit_query(): sending query ok:
> 0x7f3496941888 (1) - [delete from location_attrs where username='mridul'
> AND ruid='uloc-58a72243-5ace-2']
>


Feb 17 18:14:32 localhost kamailio[23249]: DEBUG: db_postgres
> [km_dbase.c:272]: db_postgres_submit_query(): sending query ok:
> 0x7f3496941888 (1) - [delete from location where username='mridul' AND
> contact='sip:mridul at 127.0.0.1:37881;rinstance=b841a8c916e47dfa']



I think the usrloc module should have the implementation of deleting the
entries of expired sip users based on its ruid/username in the
location_attrs table also.

Thanks for the help.

Best regards,
MRIDUL
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