MySQL> select * from information_schema.global_status limit 3;

ERROR 3167 (HY000): The 'INFORMATION_SCHEMA.GLOBAL_STATUS' feature is disabled; see the documentation for 'show_compatibility_56'

--查看show_compatibility_56其值

MySQL> show variables like '%show_compatibility_56%';

+-----------------------+-------+

| Variable_name         | Value |

+-----------------------+-------+

| show_compatibility_56 | OFF   |

+-----------------------+-------+

1 row in set (0.01 sec)

--把show_compatibility_56打开

mysql> set global show_compatibility_56=on;

Query OK, 0 rows affected (0.00 sec)

mysql> show variables like '%show_compatibility_56%';

+-----------------------+-------+

| Variable_name         | Value |

+-----------------------+-------+

| show_compatibility_56 | ON    |

+-----------------------+-------+

1 row in set (0.00 sec)

mysql> select * from information_schema.global_status limit 3;

+-----------------------+----------------+

| VARIABLE_NAME         | VARIABLE_VALUE |

+-----------------------+----------------+

| ABORTED_CLIENTS       | 0              |

| ABORTED_CONNECTS      | 0              |

| BINLOG_CACHE_DISK_USE | 0              |

+-----------------------+----------------+

3 rows in set, 1 warning (0.00 sec)