List sessions / active connections on MySQL server

You can view the number of sessions / active connections using a MySQL command, a query or the GUI

Using a command

Option 1

show status where variable_name = 'threads_connected';

Columns

  • Variable_name - Name of the variable shown
  • Value - Number of active connections

Rows

  • One row: Only one row is displayed

Sample results

Option 2

show processlist;

Columns

  • Id - The connection identifier
  • User - The MySQL user who issued the statement
  • Host - Host name and client port of the client issuing the statement
  • db - The default database (schema), if one is selected, otherwise NULL
  • Command - The type of command the thread is executing
  • Time - The time in seconds that the thread has been in its current state
  • State - An action, event, or state that indicates what the thread is doing
  • Info - The statement the thread is executing, or NULL if it is not executing any statement

Rows

  • One row: represents one active connection
  • Scope of rows: total of active connections

Sample results

Using a query

Option 3

select id,
       user,
       host,
       db,
       command,
       time,
       state,
       info
from information_schema.processlist;

Columns

  • Id - The connection identifier
  • User - The MySQL user who issued the statement
  • Host - Host name and client port of the client issuing the statement
  • db - The default database (schema), if one is selected, otherwise NULL
  • Command - The type of command the thread is executing
  • Time - The time in seconds that the thread has been in its current state
  • State - An action, event, or state that indicates what the thread is doing
  • Info - The statement the thread is executing, or NULL if it is not executing any statement

Rows

  • One row: represents one active connection
  • Scope of rows: total of active connections

Sample results

Using the GUI

Option 4

Click on the Client Connections option of the Management tab (left navigation pane)

This action will show the Client Connections screen containing the current active connections

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