MySQL 5.6から加わった
INFORMATION_SCHEMA.INNODB_METRICS のテスト。
mysql56> SELECT name, subsystem, count, status FROM information_schema.innodb_metrics;[さらに読む]
+------------------------------------------+---------------------+-----------+----------+
| name | subsystem | count | status |
+------------------------------------------+---------------------+-----------+----------+
| metadata_table_handles_opened | metadata | 0 | disabled |
| metadata_table_handles_closed | metadata | 0 | disabled |
| metadata_table_reference_count | metadata | 0 | disabled |
| metadata_mem_pool_size | metadata | 8388608 | enabled |
| lock_deadlocks …