Mysql 8.0查看锁状态

从 MySQL 8.0 开始，performance_schema.data_locks显示 InnoDB 数据锁
Information Schema 表INNODB_LOCKS和INNODB_LOCK_WAITS从 MySQL 5.7 开始弃用

Data_Locks

我们介绍一下data_locks的字段

CREATE TABLE `data_locks` (
  `ENGINE` varchar(32) NOT NULL,
  `ENGINE_LOCK_ID` varchar(128) NOT NULL,
  `ENGINE_TRANSACTION_ID` bigint unsigned DEFAULT NULL,
  `THREAD_ID` bigint unsigned DEFAULT NULL,
  `EVENT_ID` bigint unsigned DEFAULT NULL,
  `OBJECT_SCHEMA` varchar(64) DEFAULT NULL,
  `OBJECT_NAME` varchar(64) DEFAULT NULL,
  `PARTITION_NAME` varchar(64) DEFAULT NULL,
  `SUBPARTITION_NAME` varchar(64) DEFAULT NULL,
  `INDEX_NAME` varchar(64) DEFAULT NULL,
  `OBJECT_INSTANCE_BEGIN` bigint unsigned NOT NULL,
  `LOCK_TYPE` varchar(32) NOT NULL,
  `LOCK_MODE` varchar(32) NOT NULL,
  `LOCK_STATUS` varchar(32) NOT NULL,
  `LOCK_DATA` varchar(8192) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci DEFAULT NULL,
  PRIMARY KEY (`ENGINE_LOCK_ID`,`ENGINE`),
  KEY `ENGINE_TRANSACTION_ID` (`ENGINE_TRANSACTION_ID`,`ENGINE`),
  KEY `THREAD_ID` (`THREAD_ID`,`EVENT_ID`),
  KEY `OBJECT_SCHEMA` (`OBJECT_SCHEMA`,`OBJECT_NAME`,`PARTITION_NAME`,`SUBPARTITION_NAME`)
) ENGINE=PERFORMANCE_SCHEMA DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;

更多内容查看: https://dev.mysql.com/doc/refman/8.0/en/performance-schema-data-locks-table.html