MySQL · December 20, 2023

How to Fix MySQL Error 1339 - SQLSTATE: HY000 (ER_FPARSER_TOO_BIG_FILE) Configuration file '%s' is too big

How to Fix MySQL Error 1339 - SQLSTATE: HY000 (ER_FPARSER_TOO_BIG_FILE) Configuration file '%s' is too big

MySQL is a popular open-source relational database management system used by many websites and applications. However, like any software, it can encounter errors that can disrupt its normal operation. One such error is MySQL Error 1339 - SQLSTATE: HY000 (ER_FPARSER_TOO_BIG_FILE) Configuration file '%s' is too big. In this article, we will explore the causes of this error and provide solutions to fix it.

Understanding MySQL Error 1339

MySQL Error 1339 occurs when the configuration file of MySQL, usually named 'my.cnf' or 'my.ini', exceeds the maximum allowed size. The error message 'Configuration file '%s' is too big' indicates that the file size has exceeded the limit set by MySQL.

This error can occur due to various reasons, such as:

  • Incorrect configuration settings
  • Large number of database connections
  • Excessive logging or debugging information
  • Large number of databases or tables

Fixing MySQL Error 1339

Here are some solutions to fix MySQL Error 1339:

1. Increase the Maximum Allowed File Size

To fix this error, you can increase the maximum allowed file size in the MySQL configuration file. Open the 'my.cnf' or 'my.ini' file in a text editor and locate the 'max_allowed_packet' parameter. Increase its value to a higher limit, such as 64M or 128M. Save the file and restart the MySQL service for the changes to take effect.

[mysqld]
max_allowed_packet=64M

2. Optimize Database Configuration

Review your database configuration settings to ensure they are optimized. Check for any unnecessary or duplicate configuration entries that may be increasing the file size. Remove or modify these entries to reduce the file size. Additionally, consider optimizing your database queries and indexes to improve performance and reduce resource usage.

3. Limit the Number of Database Connections

If your application or website is creating a large number of database connections, it can contribute to the increased file size. Limit the number of simultaneous connections to MySQL by adjusting the 'max_connections' parameter in the configuration file. Set it to a value that suits your application's requirements.

[mysqld]
max_connections=100

4. Manage Logging and Debugging

Excessive logging or debugging information can quickly fill up the configuration file and lead to the error. Review your logging and debugging settings and disable any unnecessary or verbose logging. Set the appropriate log levels to balance the need for information and file size.

5. Split Databases or Tables

If you have a large number of databases or tables, consider splitting them into separate instances or servers. This can help distribute the load and reduce the file size of each configuration file. Use database management tools or scripts to migrate and split the databases or tables as needed.

Summary

MySQL Error 1339 - SQLSTATE: HY000 (ER_FPARSER_TOO_BIG_FILE) Configuration file '%s' is too big can be resolved by increasing the maximum allowed file size, optimizing database configuration, limiting the number of database connections, managing logging and debugging, and splitting databases or tables. If you encounter this error, follow the solutions provided to ensure smooth operation of your MySQL server.

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