Performance Schema accounts Table

The Performance Schema accounts table stores statistics on current and total connections for each client account connecting to the server.

Description

Each account that connects to the server is stored as a row in the accounts table, along with current and total connections.

The table size is determined at startup by the value of the performance_schema_accounts_size system variable. If this is set to 0, account statistics will be disabled.

Column	Description
USER	The connection's client user name for the connection, or NULL if an internal thread.
HOST	The connection client's host name, or NULL if an internal thread.
CURRENT_CONNECTIONS	Current connections for the account.
TOTAL_CONNECTIONS	Total connections for the account.

The USER and HOST values shown here are the username and host used for user connections, not the patterns used to check permissions.

Example

SELECT * FROM performance_schema.accounts;
+------------------+-----------+---------------------+-------------------+
| USER             | HOST      | CURRENT_CONNECTIONS | TOTAL_CONNECTIONS |
+------------------+-----------+---------------------+-------------------+
| root             | localhost |                   1 |                 2 |
| NULL             | NULL      |                  20 |                23 |
| debian-sys-maint | localhost |                   0 |                35 |
+------------------+-----------+---------------------+-------------------+

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