Hello all,<br><br>Hope anybody could help me. We have a SIP telephony system based on OpenSER with a redundant MySQL database ring. When the "master" database dies, a monit process detect it and modify properly the database entry in the DNS zone file. Two tests can be perform to check the availability of the system when MySQL crashes:<br>
<br>- kill mysql process in the database host machine. In this case OpenSER asks the DNS inmediately for the database IP address and the service keeps going as expected. No problem here.<br>- shutdown the interface of the machine where mysql is hosted. In this case OpenSER does not ask the DNS for the new address. It keeps trying over and over the connection with the master and until the interface is not turn on the system keeps hung.<br>
<br>So, if the mysql's host interface is shutdown the system hangs but if the mysql process dies the system works properly. In the first case both machines (OpenSER and MySQL) has IP visibility, not in the second, so the problem should be related to that. Has anybody experienced this behaviour? Does anybody know how to solve it?<br>
<br>Thanks a lot.<br clear="all"><br>-- <br>Arturo Díaz<br><br>Contact me on<br>FWD: 870436<br>Skype: arturo.diaz.almagro