Question
What are some of the most common challenges and solutions when upgrading MariaDB/MySQL?
Answer
To give you a more detailed overview, we've summarized the four most common causes and their solutions in the following Knowledge Base articles.
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Migration or backup failed: mysqldump: Got error: 145 – Plesk
- Database table corruption
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Plesk inaccessible: ERROR: Zend_Db_Adapter_Exception: SQLSTATE[HY000] [2002] Connection refused – Plesk
- MySQL directory is absent so the system cannot create PID file for the service on startup
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MySQL error on the server with Plesk: Could not increase number of max_open_files to more than 16384 – Plesk
- Hard limit of the process exceeded the number set for open files limit
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Plesk inaccessible: ERROR: Zend_Db_Adapter_Exception: SQLSTATE[HY000] [2002] Connection refused – Plesk
- MySQL directory is absent so the system cannot create PID file for the service on startup
Note: Each MariaDB upgrade is unique and may require different solutions. Always refer to the official MariaDB documentation and consult a database administrator if you encounter any problems during the upgrade process.
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