How Can I Adjust MySQL Connection Timeouts for Long-Running Python Programs?

Adjusting MySQL Connection Timeout for Prolonged Python Connections

When working with MySQL databases through Python, it's crucial to consider connection timeout settings to avoid unexpected interruptions. This issue arises when long-running programs rely on database connections that may exceed the default MySQL connection timeout.

To address this, the following question arises: how can we customize the default MySQL connection timeout when using Python?

The answer lies in modifying specific timeout variables. The solution provided includes updating the following settings:

con.query('SET GLOBAL connect_timeout=28800')
con.query('SET GLOBAL interactive_timeout=28800')
con.query('SET GLOBAL wait_timeout=28800')

These settings configure the behavior of the MySQL server in the following ways:

• connect_timeout: Specifies the time the server waits for a connection request before responding.
• interactive_timeout: Sets the timeout for interactive connections, such as those used by tools like MySQL Workbench.
• wait_timeout: Determines the duration the server allows inactivity on a connection before closing it.

It's important to note that the sample values (28800 seconds or 8 hours) should be adjusted based on the specific execution time requirements. For a 10-hour execution, even higher values may be needed.

By modifying these timeout settings, you can ensure that your Python programs maintain uninterrupted access to the database server, preventing premature termination due to timeout errors.

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