After restarting the server, the database does not return.
using the commands to restore the database none of them worked
root @ ubuntu-s-1vcpu-1gb-nyc3-01: ~ # systemctl reload mysql
Failed to reload mysql.service: Unit mysql.service not found.
root @ ubuntu-s-1vcpu-1gb-nyc3-01: ~ # systemctl restart mysql
Failed to restart mysql.service: Unit mysql.service not found.
root @ ubuntu-s-1vcpu-1gb-nyc3-01: ~ # systemctl reload mysql.service
Failed to reload mysql.service: Unit mysql.service not found.
root @ ubuntu-s-1vcpu-1gb-nyc3-01: ~ # systemctl restart mysql.service
Failed to restart mysql.service: Unit mysql.service not found.
root @ ubuntu-s-1vcpu-1gb-nyc3-01: ~ # /etc/init.d/mysql restart
[…] Restarting mysql (via systemctl): mysql.serviceFailed to restart mysql.service: Unit mysql.service not found.
failed
root @ ubuntu-s-1vcpu-1gb-nyc3-01: ~ # /etc/init.d/mysql start
[…] Starting mysql (via systemctl): mysql.serviceFailed to start mysql.service: Unit mysql.service not found.
failed
root @ ubuntu-s-1vcpu-1gb-nyc3-01: ~ # service mysql restart
Failed to restart mysql.service: Unit mysql.service not found.
Checking:
root @ ubuntu-s-1vcpu-1gb-nyc3-01: ~ # ps -aux | grep mysql
root 1928 0.0 0.1 14856 1084 pts / 0 S + 21:34 0:00 grep --color = auto mysql
mysql logs showed no error.
directory does not exist.
root @ ubuntu-s-1vcpu-1gb-nyc3-01: ~ # cd / var / run / mysqld /
-bash: cd: / var / run / mysqld /: No such file or directory
I tried to create the file
root @ ubuntu-s-1vcpu-1gb-nyc3-01: / lib / systemd / system # systemctl enable mysql.service
Synchronizing state of mysql.service with SysV service script with / lib / systemd / systemd-sysv-install.
Executing: / lib / systemd / systemd-sysv-install enable mysql
Failed to enable unit: File mysql.service: Link has been severed
– Unit pdns.service has begun starting up.
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: Loading ‘/usr/lib64/pdns/libgmysqlbackend.so’
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: This is a standalone pdns
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: Listening on controlsocket in ‘/var/run/pdns.controlsocket’
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: UDP server bound to 0.0.0.0:53
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: UDPv6 server bound to [::]:53
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: TCP server bound to 0.0.0.0:53
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: TCPv6 server bound to [::]:53
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: PowerDNS Authoritative Server 4.2.0-rc3 (C) 2001-2019 PowerDNS.COM BV
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: Using 64-bits mode. Built using gcc 4.8.5 20150623 (Red Hat 4.8.5-36) on Aug 8 2019 20:58:24 by root@0c35504b30a1.
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: PowerDNS comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it according to the
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: Polled security status of version 4.2.0-rc3 at startup, no known issues reported: OK
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: Creating backend connection for TCP
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: gmysql Connection failed: Unable to connect to database: Can’t connect to local MySQL server through socket '/var/lib/mysq
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: Caught an exception instantiating a backend: Unable to launch gmysql connection: Unable to connect to database: Can’t conn
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: Cleaning up
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: TCP server is unable to launch backends - will try again when questions come in: Unable to launch gmysql connection: Unabl
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: About to create 3 backend threads for UDP
Aug 24 00:30:51 sv.giaysihcm.com systemd[1]: Started PowerDNS Authoritative Server.
– Subject: Unit pdns.service has finished start-up
– Defined-By: systemd
– Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
– Unit pdns.service has finished starting up.
– The start-up result is done.
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: gmysql Connection failed: Unable to connect to database: Can’t connect to local MySQL server through socket '/var/lib/mysq
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: Caught an exception instantiating a backend: Unable to launch gmysql connection: Unable to connect to database: Can’t conn
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: Cleaning up
Aug 24 00:30:51 sv.giaysihcm.com pdns_server[28544]: Distributor caught fatal exception: Unable to launch gmysql connection: Unable to connect to database: Can’t connect to lo
Aug 24 00:30:51 sv.giaysihcm.com systemd[1]: pdns.service: main process exited, code=exited, status=1/FAILURE
Aug 24 00:30:51 sv.giaysihcm.com systemd[1]: Unit pdns.service entered failed state.
Aug 24 00:30:51 sv.giaysihcm.com systemd[1]: pdns.service failed.