MySQL failed to start

By Tech-Assured     
January 27, 2021  63 Views

MySQL failed to start

If you see this error, it means you have forgotten something while creating table.

Let’s see the causes & fixes to it

Possible causes for Error 1054


  • Missing column in a table.
  • Single quotes missing while inserting varchar value.
  • Mismatch between CREATE_TABLE and UPDATE.

Possible causes for this error


  • MySQL corrupted: If MySQL table gets corrupted, it won’t allow the MySQL server to start.
  • Configuration error: If there is any error or unsupported parameters in the configuration file, it will not allow the MySQL to start. 
  • Permissions/Ownership issues: If there are any accidental changes in permission or ownership of MySQL files, it won’t allow the MySQL to start. 
  • Disk space issue: If there is a lack of sufficient disk space in the server, it won’t allow the MySQL to start.
  • Memory issues: If there are other processes running and MySQL is not getting sufficient memory, it won’t allow the MySQL to start.

Solution


  • If MySQL binary or tables get corrupted, you need to reinstall the server.
  • In order to fix configuration issue, we need to access the MySQL configuration file (my.cnf) where the errors are highlighted so that it can be resolved.
  • In order to fix Permissions/Ownership issues, you need to first access the data directory and set it up in such a way that the MySQL user can read and modify it
  • In order to fix Disk space issue, you need to remove unnecessary data or move to another partition.
  • In order to fix Memory issues, you need to increase the swap memory allocated to the server.

If the issue still persists…

Ask for helpOur Support Engineers will walk you through to resolve such issues.