MariaDB socket in jail not created at host boot

There's a jail for MariaDB mysql Ver 15.1 Distrib 10.2.15-MariaDB, for FreeBSD11.1 (amd64) using readline 5.1.

A socket should be created in /var/run/mysql
port            = 3306
socket          = /var/run/mysql/mysql.sock
port            = 3306
socket          = /var/run/mysql/mysql.sock

But no socket is created when the jail is booted.

/etc/rc.conf has mysql_enable="YES"
tail /var/db/mysql/mariadb.err shows no error.
 >tail /var/log/mysql/mysql_error.log                                                                                                                                                                                                               

2018-06-05 11:54:30 34424840192 [Note] InnoDB: File './ibtmp1' size is now 12 MB.                                                                                                                                                                                               
2018-06-05 11:54:30 34424840192 [Note] InnoDB: Waiting for purge to start
2018-06-05 11:54:31 34424840192 [Note] InnoDB: 5.7.22 started; log sequence number 4806891
2018-06-05 11:54:31 34424840192 [Note] Plugin 'FEEDBACK' is disabled.
2018-06-05 11:54:31 34596598016 [Note] InnoDB: Loading buffer pool(s) from /var/db/mysql/ib_buffer_pool
2018-06-05 11:54:31 34596598016 [Note] InnoDB: Buffer pool(s) load completed at 180605 11:54:31
2018-06-05 11:54:31 34424840192 [Note] Reading of all Master_info entries succeded
2018-06-05 11:54:31 34424840192 [Note] Added new Master_info '' to hash table
2018-06-05 11:54:31 34424840192 [Note] /usr/local/libexec/mysqld: ready for connections.
Version: '10.2.15-MariaDB-log'  socket: '/var/run/mysql/mysql.sock'  port: 0  FreeBSD Ports

If I start the MariaDB system by hand service mysql-server start , the socket is created:
>ls -l /var/run/mysql/mysql.sock                                                                                                                                                                                                                    
srwxrwxrwx  1 mysql  wheel  0 Jun  5 12:16 /var/run/mysql/mysql.sock

Why is it not created automatically at boot?


Staff member
Depending on the configuration it can take a couple of seconds after MariaDB has started for the socket to appear. MariaDB takes a bit of time to start up, only when it's fully started will the socket become available.
If the system is on and and restart the jail, the socket is create fine.

If I reboot the host, the jails are started, mariadb is running in its jail, but the socket is not created.
The only info I can find is that Version: '10.2.15-MariaDB-log' socket: '/var/run/mysql/mysql.sock' port: 0 FreeBSD Ports

Can't think of a reason for this, but I'm not an expert on the field, that's why I'm asking for advice.