On 28/10/2019 11:28, Gerald Galster via dovecot wrote:
Hi,
Is anyone else using Dovecot (2.3.8) with MySQL (5.7) seeing a lot of these in MySQL logs?
2019-10-28T11:08:20.384428+02:00 58378 [Note] Aborted connection 58378 to db: 'vmail' user: 'vmail' host: 'localhost' (Got an error reading communication packets) 2019-10-28T11:10:09.821171+02:00 58420 [Note] Aborted connection 58420 to db: 'vmail' user: 'vmail' host: 'localhost' (Got an error reading communication packets) 2019-10-28T11:11:26.170015+02:00 58441 [Note] Aborted connection 58441 to db: 'vmail' user: 'vmail' host: 'localhost' (Got an error reading communication packets) 2019-10-28T11:13:14.091426+02:00 58459 [Note] Aborted connection 58459 to db: 'vmail' user: 'vmail' host: 'localhost' (Got an error reading communication packets)
They've plagued my logs for as long as I can remember. Is Dovecot not closing connections to the database properly or something similar? is it possible MySQL closed inactive connections?
SHOW VARIABLES LIKE '%timeout%';
mysqlx_wait_timeout = 3600 wait_timeout = 3600 mysqlx_interactive_timeout = 3600 interactive_timeout = 3600
Gerald
Variable_name Value connect_timeout 10 interactive_timeout 28800 lock_wait_timeout 31536000 net_read_timeout 30 net_write_timeout 60 wait_timeout 28800
That sounds plausible. I wonder how to solve it though. :) I don't get any such notices from OpenSMPTD using the same database.