Connection on FromDual GmbH

MariaDB Connection ID

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 29 Nov 2021 15:09:27 +0000

The MariaDB Connection ID exists since long ago. So why bother about the Connection ID? Because it is interesting and you can do some interesting things with the Connection ID like tracking statements in your connections and find where they come from your application code.

Enable General Query Log per Connection in MariaDB

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 10 Jul 2019 20:27:58 +0000

The General Query Log in MariaDB is a Log (file or table) that logs every statement sent from the Application to the MariaDB Database Server from the Connect Command to the Quit Command. A simple example you can find here:

Max_used_connections per user/account

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 30 Jul 2015 23:34:22 +0000

How many connections can be opened concurrently against my MySQL or MariaDB database can be configured and checked with the following command:

Impacts of max_allowed_packet size problems on your MySQL database

oli.sennhauser@fromdual.com (Oli Sennhauser) — Sun, 18 Jan 2015 11:18:46 +0000

We recently run into some troubles with max_allowed_packet size problems during backups with the FromDual Backup/Recovery Manager and thus I investigated a bit more in the symptoms of such problems.