Hi Daniel,

I found the reason why there were so many open db connections. The parameter „trace_to_database“ was on so kamailio opened many additional connections.
With following parameter the db connections were normal again:
modparam("siptrace", "trace_to_database", 0)

Thanks! Roman

Am 31.08.2018 um 12:23 schrieb Daniel-Constantin Mierla <miconda@gmail.com>:

Hello,

in most of the cases, kamailio keeps the connections open for the entire duration of running. A connection is shared between modules for the same kamailio process, so if you have auth_db and siptrace, both will use same connection. How many kamailio processes (and thus number of db connections) are there is a matter of children and listen parameters, as well as couple of extra special processes (timers, rpc servers, ...).

Keeping the connection open is done mainly for performance reasons.

Cheers,
Daniel


On 31.08.18 07:31, Roman Dissauer wrote:
Hi,

it seems that siptrace module doesn’t close db connections.

I’m on Kamailio 5.1.4 from official debian stretch repository with postgresql db module enabled.
siptrace config:
modparam("siptrace", "db_url", DBURL)
modparam("siptrace", "duplicate_uri", "sip:193.32.51.189:9060")
modparam("siptrace", "hep_mode_on", 1)
modparam("siptrace", "hep_version", 3)
modparam("siptrace", "hep_capture_id", 1001)
modparam("siptrace", "trace_mode", 1)

Here you can see the open connections from the kamailio host:

# select client_addr, state, query from pg_stat_activity where client_addr = '10.23.101.61';
 client_addr  | state |                             query                              
--------------+-------+----------------------------------------------------------------
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
 10.23.101.61 | idle  | select table_version from version where table_name='sip_trace'
(31 Zeilen)


another example, other installation with same kamailio version 5.1.4:

# select client_addr, state, query from pg_stat_activity where client_addr = '10.23.102.1';
 client_addr | state |                             query                              
-------------+-------+----------------------------------------------------------------
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
 10.23.102.1 | idle  | select table_version from version where table_name='sip_trace'
(39 Zeilen)


Thanks Roman




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