Hello,
I pushed some patches to the master branch in order to remove the dialog
from its associated profiles when it gets in terminated state. I
encountered such issue (not that) recently, but I haven't gotten the
time to get to it before.
Then, the second patch is to not add dialogs in profiles when loading
from database and the state is terminated (5).
Here are the links to the patches:
-
http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=edf61ac…
-
http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=9b88eb7…
Should be straightforward to cherry pick to 4.1 (even 4.0 I expect). If
you test and all goes fine, I will backport -- here I had no time for
real testing.
I plan also to not add the dialogs in memory for state terminated, but
destroy them at db load time. But this needs a bit of a review, to be
sure that all necessary callbacks are executed.
On the other hand, if the dialogs are not removed from db, might be an
issue with the database driver (cassandra in this case, which is rather
new module). Do you get any syslog errors from kamailio or database
server? I expect that people would have reported such issue for other
database engines so far. Still it might be an issue, just that was not
noticed...
Cheers,
Daniel
On 24/02/14 11:19, jay binks wrote:
So poking round the code for the dialog module....
Im not sure what im missing here.
get_profile_size dosnt care bout the state of a dialog... so you get
ALL dialogs that are in the hash table.
( which is interesting if you want to use dialog module to enforce
channel limits etc )
So you go... OK... kamailio only expects to have "ACTIVE" dialogs in
the hash table... kewl..
lets assume that to be the case.
but then in dlg_db_handler.c , load_dialog_info_from_db loads all
dialogs from the DB, regardless of state.
so all dialogs in the DB ( ones that didnt get deleted yet... but were
in state 5 ) get re-created in kamailio
upon startup.
what this means is...
( assume starting with empty DB )
I start kamailio, make some calls... they get synced to the DB.
I end the calls, kamailio removes from dialogs module internal hash,
but the sync to DB hasnt happened yet.
I kill kamailio ( or crash .. whatever ).... restart kamailio and it
re-loads all those dialogs
and thinks they are still active calls.
Im SURE Im missing something here, because it seems to be VERY common
to use dialogs for channel limiting..
maybe not so much using cassandra db behind the scenes, but as of yet
... Im still yet to find anything that makes me thing this is
db_cassandra mis-behaving.
if im wrong, please point me in the right direction.
Jay
On 24 February 2014 17:54, jay binks <jaybinks(a)gmail.com
<mailto:jaybinks@gmail.com>> wrote:
Am I REALLY the only person who has ever run into this !?
On 19 February 2014 14:08, jay binks <jaybinks(a)gmail.com
<mailto:jaybinks@gmail.com>> wrote:
Hi all, im using the dialog module with db_cassandra backend..
I dont believe this issue is related to cassandra, but its
worth mentioning anyways.
so... I run kamailio, make calls, see dialogs in the DB..
and I Can use "kamctl mi dlg_list" and see that dialogs go
away when I hangup a call..
When I query the DB Backend, I still see the queries, but they
have a state of 5.
I Initially thought this was a bug, but it seems dialogs in
state 5 get cleaned up after a period.
so I moved on.
now , lets restart kamailio..
kamailio loads all dialogs on startup, after kamailio starts I
call "kamctl mi dlg_list" again, and it shows all my dialogs
from the DB. they DO show as "State 5"
but for some reason, these dialogs appear to stick around for
a long time, and the bigger issue it causes me is that my
channel limiting ( using get_profile_size ) seems to consider
these dialogs ( in state 5 ) as being active calls.
Please someone point me in the right direction... :)
what am I doing wrong ?
( or is this a bug somewhere )
Sincerely
Jay
--
Sincerely
Jay
--
Sincerely
Jay
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