How to Fix the 'MySQL Server Has Gone Away' Error When Importing Large SQL Files?

Resolving the "MySQL Server Has Gone Away" Error While Loading Large SQL Files

When confronted with the persistent "ERROR 2006 (HY000): MySQL server has gone away" while executing massive SQL files containing extensive INSERT queries, it's essential to address the root cause.

Examining the provided information suggests that the error could stem from insufficient packet size allocation, as the file size (79512 bytes) exceeds the maximum allowed packet size (1048576 bytes).

To resolve this issue, modify the server configuration by adjusting the "max_allowed_packet" parameter within the "my.cnf" file. Increase its value to an adequate size, such as 64 megabytes, using the following line:

max_allowed_packet=64M

This configuration change allows MySQL to handle larger packets, mitigating the "server has gone away" error during data import operations.

On Windows systems, the "my.cnf" file is typically located at:

"C:\ProgramData\MySQL\MySQL Server 5.6"

On Linux (Ubuntu):

/etc/mysql

Once the "max_allowed_packet" parameter is updated, restart the MySQL server to apply the changes. This should enable the successful execution of the large SQL file, allowing the data insertion to complete without interruption.

The above is the detailed content of How to Fix the 'MySQL Server Has Gone Away' Error When Importing Large SQL Files?. For more information, please follow other related articles on the PHP Chinese website!