[SR-Users] Issue on kamailio 4.1.9 of database reconnection

Emmanuel BUU emmanuel.buu at ives.fr
Fri Dec 14 18:18:48 CET 2018

Hi to the community,

We are starting to use database clusters and would like improve the 
availability of our kamailio server.

We are curretly running kamailio 4.1.9 and we noticed that if we reboot 
the database server, kamailio takes a llloong time to reconnect the 
mysql connection

and during this time, we fail to register.  We see a lot of TCP 
connections in status CLOSING.

After a while, we see things going back to normal (> 30 min) but this is 
too long. Can someone give us advice ?

Has this issue been fixed in newer versions

On kamalio side we're using mysql clients

mysql-libs.x86_64 5.1.73-8.el6_8

We have set the following parameters:

modparam("db_mysql", "timeout_interval", 5)
modparam("db_mysql", "ping_interval", 60)
modparam("db_mysql", "auto_reconnect", 1)


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