We have a regression here for CE during the upgrade mr3.4->trunk:
> Removing proj-data ...
> ...
> Synchronizing data from /etc/ngcp-config/constants.yml
> DBI connect('database=mysql;host=127.0.0.1;port=3306','sipwise',...) failed:
> Can't connect to MySQL server on '127.0.0.1' (111)
> at /usr/sbin/ngcp-sync-constants line 131
> Can't connect to MySQL database mysql: Can't connect to MySQL server on
> '127.0.0.1' (111) at /usr/sbin/ngcp-sync-constants line 131.
It happens because MySQL listens Unix sockets only (due to "skip_networking" in my.cnf)
It doesn't affect newly installed CE trunk,
because it has defaults in /etc/ngcp-config/config.yml:
> database:
> central:
> dbhost: localhost
> pair:
> dbhost: localhost
While upgraded system not yet received those options
(ngcp-upgrade-cfg-schema will be called later).
So, we need to change defaults here to localhost.
MySQL always uses unix sockets for 'localhost'.
Change-Id: I0f07c43ea68ed47b653242cd87ed74e7351dcc1c
From MYSQL documentation:
"If you specify the MASTER_HOST or MASTER_PORT option, the slave
assumes that the master server is different from before
(even if the option value is the same as its current value.)
In this case, the old values for the master binary log file
name and position are considered no longer applicable"
Change-Id: I9be8e0fdab7ce598343df270c2ade0a5095e1f48