1. Check the MySQL configuration file for the port number:
$ cat /etc/my.cnf
[mysqld]
port=1414
2. Check the firewall settings to ensure that the port is open:
$ sudo firewall-cmd --list-all
public (active)
target: default
icmp-block-inversion: no
interfaces: eth0
sources:
services: ssh dhcpv6-client
ports: 1414/tcp
protocols:
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:
3. Check the MySQL service status to ensure that it is running:
$ sudo systemctl status mysqld
● mysqld.service - MySQL Server
Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
Active: active (running) since Mon 2020-09-14 11:14:45 UTC; 1min ago
Main PID: 845 (mysqld)
CGroup: /system.slice/mysqld.service
└─845 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid
4. Check the MySQL error log for any errors related to the port:
$ sudo tail -f /var/log/mysql/error.log
2020-09-14 11:14:45 1414 [Note] Server hostname (bind-address): '127.0.0.1'; port: 1414
2020-09-14 11:14:45 1414 [Note] - '127.0.0.1' resolves to '127.0.0.1';
2020-09-14 11:14:45 1414 [Note] Server socket created on IP: '127.0.0.1'.
5. Restart the MySQL service to apply the changes:
$ sudo systemctl restart mysqld
6. Use an automated database observability tool to monitor and fix the MySQL 1414 in question. Automated database observability tools can provide real-time insights into the performance and health of the database, allowing for quick and easy troubleshooting and resolution of issues. Additionally, these tools can provide alerts when issues arise, allowing for proactive resolution of problems before they become major issues.