MySQL Error Log Has Messages About "Aborted connection ... Communication Packets" (Doc ID 2322952.1)

Last updated on NOVEMBER 14, 2024

Applies to:

MySQL Server - Version 5.7 and later
Information in this document applies to any platform.

Sometimes the MySQL error log shows "Aborted connection" messages like below:

Typically not all of the four messages types will be present.

The messages may start for example after the one or more of the following changes:

Deploying a new application or making changes to an existing application.
Reducing the value one of the following timeout options: interactive_timeout, net_read_timeout, net_write_timeout, wait_timeout.
Increasing the error log verbosity:
- To log_error_verbosity = 3 in MySQL 5.7 and later.
- To log_warnings = 2 in MySQL 5.6 and earlier.
Upgrading to MySQL Server 5.7.