[Asterisk-Users] Asterisk Realtime Database Redundancy

[Douglas Garstang]

In short, does Asterisk have any database redundancy???

Is there any way to specific more than one db host in res_mysql.conf? If you specify dbhost with a hostname, and use round-robin dns, does Asterisk read this file only on startup or on every db connect attempt? If it fails to get a connection, is it start enough to try the next host?

What about with the MySQL application? Is there any way to incorporate redundancy into this, such that it can try multiple db servers when one is unavailable? Is there any way around the limitation where Asterisk reads extensions.conf on startup, and if that db goes down, Asterisk has already loaded the IP address into memory... and your screwed?

And what about Realtime extensions? Is there any database redundancy there at all? What happens when this happens:

*CLI> [Dec 27 06:18:15] ERROR[3007]: res_config_mysql.c:615 mysql_reconnect: MySQL RealTime: Failed to connect database server vox180 on 192.168.10.15. Check debug for more info.
[Dec 27 06:18:15] ERROR[3007]: res_config_mysql.c:615 mysql_reconnect: MySQL RealTime: Failed to connect database server vox180 on 192.168.10.15. Check debug for more info.
[Dec 27 06:18:15] ERROR[3007]: res_config_mysql.c:615 mysql_reconnect: MySQL RealTime: Failed to connect database server vox180 on 192.168.10.15. Check debug for more info.
[Dec 27 06:18:15] ERROR[3007]: res_config_mysql.c:615 mysql_reconnect: MySQL RealTime: Failed to connect database server vox180 on 192.168.10.15. Check debug for more info.

Is Asterisk smart enough to be able to try another database? It looks like even when there are following contexts with a number, Asterisk immediately fails the call at this point.

Thanks,
Douglas.