Mariadb troubleshoot

This warning usually indicates a permission issue or a disk space problem when a service (like MySQL or MariaDB) tries to create a temporary test file. Here’s how you can troubleshoot:

1. Check Disk Space

Run:

df -h

If the disk is full, free up space.

2. Verify Directory Permissions

Check the ownership and permissions of the directory where the test file is being created:

ls -ld /var/lib/mysql

If needed, reset ownership:

sudo chown -R mysql:mysql /var/lib/mysql

3. Check SELinux or AppArmor

If SELinux is enabled, try:

sudo setenforce 0

For AppArmor (Ubuntu), disable MySQL restrictions:

sudo aa-disable /usr/sbin/mysqld

4. Restart the Service

sudo systemctl restart mysql

or

sudo systemctl restart mariadb

For more details, check out this discussion or this troubleshooting guide. Let me know if you need further assistance! 🚀