MariaDB starting with 5.2

MariaDB 5.2 introduced the User Statistics feature.

Syntax

SHOW CLIENT_STATISTICS

Description

The SHOW CLIENT_STATISTICS statement was introduced in MariaDB 5.2 as part of the User Statistics feature. It was removed as a separate statement in MariaDB 10.1.1, but effectively replaced by the generic SHOW information_schema_table statement. The Information Schema CLIENT_STATISTICS Table table holds statistics about client connections.

The userstat system variable must be set to 1 to activate this feature. See the User Statistics and Information Schema CLIENT_STATISTICS Table articles for more information.

Example

From MariaDB 10.0:

SHOW CLIENT_STATISTICS\G
*************************** 1. row ***************************
                Client: localhost
     Total_connections: 35
Concurrent_connections: 0
        Connected_time: 708
             Busy_time: 2.5557979999999985
              Cpu_time: 0.04123740000000002
        Bytes_received: 3883
            Bytes_sent: 21595
  Binlog_bytes_written: 0
             Rows_read: 18
             Rows_sent: 115
          Rows_deleted: 0
         Rows_inserted: 0
          Rows_updated: 0
       Select_commands: 70
       Update_commands: 0
        Other_commands: 0
   Commit_transactions: 1
 Rollback_transactions: 0
    Denied_connections: 0
      Lost_connections: 0
         Access_denied: 0
         Empty_queries: 35

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