How to check Max and Existing Connections in MySQL

Counting Connections

To get an immediate snapshot of current connections, execute the following query in MySQL Workbench or terminal:

SELECT COUNT(host) FROM information_schema.processlist;

This query counts the rows in the information_schema.processlist table, providing the count of the current connections.

Show Status

Alternatively, use this query to directly retrieve the value of the threads_connected variable:

SHOW STATUS WHERE variable_name = 'threads_connected';

While similar, note that this approach may include additional threads beyond user connections.

Max Connections

Execute the following query in MySQL Workbench to grasp the maximum allowed connections:

SELECT @@max_connections;

This query reveals the maximum number of simultaneous connections allowed by your MySQL server, a crucial factor for ensuring your application’s scalability.

See more:

• How to check Max and Existing Connections in MySQL
• Difference between CREATE INDEX and ALTER TABLE ADD INDEX in MySQL