tonight i was working on our master server. I took it offline for a little bit and noticed something odd of all the slaves.
If a slave cannot connect to a master it crashes. The slaves are trying to constantly connect to the master with
DBI connect('database=dbispconfig;host=lb1a.xxxxxx.com:3306','ispcsrv5',...) fai$
DBI Error: at /usr/local/ispconfig/server/scripts/vlogger line 255.
this happens every second it seems. when this does all apache2 servers crash with a max open failure and then an internal 500 error.
of course once the master is online and you restart apache on the slaves all is well. any thoughts on this? am i over looking something that would stop the slaves from causing the 500 error?
as it looks it does not allow you to mirror and then provide fail over as the slave is always looking for the master. if the master does in fact come offline for maintenance all slaves then crash