9 Nov
2009
9 Nov
'09
10 a.m.
Hello,
I noticed that sometimes I get 2 identical acc records in the database,
although I get only 1 in the syslog (I use both db_flag and log_flag). Of
course, the second record in the DB shouldn't be there.
There are no retransmissions of neither request nor response and only a single
branch exists. How is this possible, and more importantly, how can I prevent
the double records?
This is on Kamailio 1.4+svn.
--
Greetings,
Alex Hermann
9 Nov
9 Nov
10:04 a.m.
Alex Hermann wrote:
I noticed that sometimes I get 2 identical acc records
in the database,
although I get only 1 in the syslog (I use both db_flag and log_flag). Of
course, the second record in the DB shouldn't be there.
Identical as in, same method, same CSeq, same Call-ID, but different
ID column?
--
Alex Balashov - Principal
Evariste Systems
Web : http://www.evaristesys.com/
Tel : (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
10:16 a.m.
On Monday 09 November 2009, Alex Balashov wrote:
Alex Hermann wrote:
Yes.
--
Greetings,
Alex Hermann
I noticed that sometimes I get 2 identical acc
records in the database,
although I get only 1 in the syslog (I use both db_flag and log_flag). Of
course, the second record in the DB shouldn't be there.
Identical as in, same method, same CSeq, same Call-ID, but different
ID column? 
11:20 a.m.
On Montag, 9. November 2009, Alex Hermann wrote:
Hey Alex,
i think i also noticed something like this some time ago in our accounting, we
use syslog output. I supposed that it had something to do with
retransmissions, and that perhaps a really rare race condition exists
somewhere in the accounting module. We take care of this in our cdr engine, so
i did not debugged it further that time, as i don't had access to a sip trace
showing the SIP message flow for the record(s) in question.
But if you say it has nothing to do with retransmissions, then its even more
strange. How often do you observe this problem?
Regards,
Henning
Alex Hermann
wrote:
Yes. I noticed that sometimes I get 2 identical acc
records in the database,
although I get only 1 in the syslog (I use both db_flag and log_flag).
Of course, the second record in the DB shouldn't be there.
Identical as in, same method, same CSeq, same Call-ID, but different
ID column?
11:26 a.m.
I use 'acc' with DB CDR logging through db_postgres in about 90% of
all projects I've ever worked on and have never seen this. It may be
DB-specific.
Henning Westerholt wrote:
On Montag, 9. November 2009, Alex Hermann wrote:
Yes.
Hey Alex,
i think i also noticed something like this some time ago in our
accounting, we use syslog output. I supposed that it had something to do
with retransmissions, and that perhaps a really rare race condition
exists somewhere in the accounting module. We take care of this in our
cdr engine, so i did not debugged it further that time, as i don't had
access to a sip trace showing the SIP message flow for the record(s) in
question.
But if you say it has nothing to do with retransmissions, then its even
more strange. How often do you observe this problem?
Regards,
Henning
------------------------------------------------------------------------
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--
Alex Balashov - Principal
Evariste Systems
Web : http://www.evaristesys.com/
Tel : (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
> Alex Hermann wrote:
> > I noticed that sometimes I get 2 identical acc records in the
database,
> > although I get only 1 in the syslog (I
use both db_flag and
log_flag).
Of course, the second record in the DB shouldn't
be there.
Identical as in, same method, same CSeq, same Call-ID, but different
ID column? 
10 Nov
10 Nov
5:46 a.m.
Hello,
On 09.11.2009 17:20 Uhr, Henning Westerholt wrote:
On Montag, 9. November 2009, Alex Hermann wrote:
Yes.
Hey Alex,
i think i also noticed something like this some time ago in our
accounting, we use syslog output.
do you get same situation with syslog acc? As I understood Alex got it
with db accounting.
What is very strange in Alex's case is he gets it with db and not with
syslog, for same event. The module calls step by step syslog and then db
recording. So if there would be 2 db records, should be 2 syslog records.
Cheers,
Daniel
> Alex Hermann wrote:
> > I noticed that sometimes I get 2 identical acc records in the
database,
> > although I get only 1 in the syslog (I
use both db_flag and
log_flag).
Of course, the second record in the DB shouldn't
be there.
Identical as in, same method, same CSeq, same Call-ID, but different
ID column? I supposed that it had something to do with
retransmissions, and that
perhaps a really rare race condition exists somewhere in the
accounting module. We take care of this in our cdr engine, so i did
not debugged it further that time, as i don't had access to a sip
trace showing the SIP message flow for the record(s) in question.
But if you say it has nothing to do with retransmissions, then its
even more strange. How often do you observe this problem?
Regards,
Henning
------------------------------------------------------------------------
_______________________________________________
Kamailio (OpenSER) - Users mailing list
Users(a)lists.kamailio.org
http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
--
Daniel-Constantin Mierla
* http://www.asipto.com/
5:50 a.m.
Daniel-Constantin Mierla schrieb:
Hello,
On 09.11.2009 17:20 Uhr, Henning Westerholt wrote:
maybe in syslog there is something like "last message repeated 2 times"?
klaus
On Montag, 9. November 2009, Alex Hermann wrote:
Hey Alex,
i think i also noticed something like this some time ago in our
accounting, we use syslog output.
do you get same situation with syslog acc? As I understood Alex got it
with db accounting.
What is very strange in Alex's case is he gets it with db and not with
syslog, for same event. The module calls step by step syslog and then db
recording. So if there would be 2 db records, should be 2 syslog records. > Alex Hermann wrote:
> > I noticed that sometimes I get 2 identical acc records in the
database,
> > although I get only 1 in the syslog (I
use both db_flag and
log_flag).
> Of
course, the second record in the DB shouldn't be there.
Identical as in, same method, same CSeq, same Call-ID, but different
ID column?
Yes.
5:59 a.m.
On 10.11.2009 11:50 Uhr, Klaus Darilion wrote:
Daniel-Constantin Mierla schrieb:
yes, it could be. Would be good to know if it is the case, because if
yes, then might be a retransmission, a 200ok race (two answers at same
time) or something inside the code ... never got it myself, though.
Cheers,
Daniel
--
Daniel-Constantin Mierla
* http://www.asipto.com/
Hello,
On 09.11.2009 17:20 Uhr, Henning Westerholt wrote:
maybe in syslog there is something like "last message repeated 2 times"?
On Montag, 9. November 2009, Alex Hermann wrote:
do you get same situation with syslog acc? As I understood Alex got
it with db accounting.
What is very strange in Alex's case is he gets it with db and not
with syslog, for same event. The module calls step by step syslog and
then db recording. So if there would be 2 db records, should be 2
syslog records. > Alex Hermann wrote:
> > I noticed that sometimes I get 2 identical acc records in the
database,
> > although I get only 1 in the syslog (I
use both db_flag and
log_flag).
> > Of course, the second record in the DB
shouldn't be there.
>
> Identical as in, same method, same CSeq, same Call-ID, but
different
> ID column?
Yes.
Hey Alex,
i think i also noticed something like this some time ago in our
accounting, we use syslog output.
6:55 a.m.
On Dienstag, 10. November 2009, Klaus Darilion wrote:
Hey Klaus, hey Daniel,
i did not remember exactly, sorry. But i think i did not observed the line you
mentioned, as the machine in question aggregates several syslog streams, and
normally do not combine them. I'm not sure if Alex also use syslog accounting,
i understand that he only observed this in the database. When i do some QA for
our cdr engine again, i'll then take a closer look to the log generation.
Regards,
Henning
On 09.11.2009
17:20 Uhr, Henning Westerholt wrote:
maybe in syslog there is something like "last message repeated 2 times"?
On Montag, 9. November 2009, Alex Hermann wrote:
do you get same situation with syslog acc? As I understood Alex got it
with db accounting.
What is very strange in Alex's case is he gets it with db and not with
syslog, for same event. The module calls step by step syslog and then db
recording. So if there would be 2 db records, should be 2 syslog records. > Alex Hermann wrote:
> > I noticed that sometimes I get 2 identical acc records in the
database,
> > although I get only 1 in the syslog (I
use both db_flag and
log_flag).
> > Of course, the second record in the DB
shouldn't be there.
>
> Identical as in, same method, same CSeq, same Call-ID, but different
> ID column?
Yes.
Hey Alex,
i think i also noticed something like this some time ago in our
accounting, we use syslog output.
11:07 a.m.
On Tuesday 10 November 2009, Klaus Darilion wrote:
Daniel-Constantin Mierla schrieb:
> do you get same situation with syslog acc? As I understood Alex got it
> with db accounting.
>
> What is very strange in Alex's case is he gets it with db and not with
> syslog, for same event. The module calls step by step syslog and then db
> recording. So if there would be 2 db records, should be 2 syslog records.
That's the strangest part. In syslog there's only 1 accounting entry. Seems
like the DB module (MySQL) committed the same query twice.
maybe in syslog there is something like "last
message repeated 2 times"?
Nope, there is not such a message.
--
Greetings,
Alex Hermann
2:07 p.m.
Alex Hermann schrieb:
On Tuesday 10 November 2009, Klaus Darilion wrote:
Maybe a problem with the connection - e.g. INSERT, somehow the
connection to the database fails and Kamailio reconnects and tries again?
regards
klaus
Daniel-Constantin Mierla schrieb:
> do you get same situation with syslog acc? As I understood Alex got it
> with db accounting.
>
> What is very strange in Alex's case is he gets it with db and not with
> syslog, for same event. The module calls step by step syslog and then db
> recording. So if there would be 2 db records, should be 2 syslog records.
That's the strangest part. In syslog there's only 1 accounting entry. Seems
like the DB module (MySQL) committed the same query twice. maybe in syslog there is something like
"last message repeated 2 times"?
Nope, there is not such a message.
5391
days inactive
5392
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10 comments
5 participants
participants (5)
-
Alex Balashov -
Alex Hermann -
Daniel-Constantin Mierla -
Henning Westerholt -
Klaus Darilion