mysql8查看锁信息

mysql> set global innodb_lock_wait_timeout=1200;
Query OK, 0 rows affected (0.00 sec)

2.登录打开第二个session
mysql> set autocommit=0;
Query OK, 0 rows affected (0.00 sec)
mysql> 
mysql> select @@autocommit;
+--------------+
| @@autocommit |
+--------------+
|            0 |
+--------------+
1 row in set (0.00 sec)
mysql> use test
mysql> update temp set name='bb' where id=1;  #执行这条sql，会一直卡住。

mysql> select trx_id,trx_state,trx_started,trx_tables_locked,trx_rows_locked,trx_query from information_schema.innodb_trx;

mysql> select ENGINE_LOCK_ID,ENGINE_TRANSACTION_ID,LOCK_MODE,LOCK_TYPE,INDEX_NAME,OBJECT_SCHEMA,OBJECT_NAME,LOCK_DATA,LOCK_STATUS,THREAD_ID from performance_schema.data_locks;

mysql> select locked_table_name,locked_index,waiting_pid,waiting_lock_id,blocking_lock_id,blocking_pid from sys.innodb_lock_waits;

mysql> select ENGINE_LOCK_ID,ENGINE_TRANSACTION_ID,LOCK_MODE,LOCK_TYPE,INDEX_NAME,OBJECT_SCHEMA,OBJECT_NAME,LOCK_DATA,LOCK_STATUS,THREAD_ID from performance_schema.data_locks;
mysql> select locked_table_name,locked_index,waiting_pid,waiting_lock_id,blocking_lock_id,blocking_pid from sys.innodb_lock_waits;

mysql> select locked_table_name,locked_index,waiting_pid,waiting_lock_id,blocking_lock_id,blocking_pid from sys.innodb_lock_waits;
mysql> show processlist;

mysql>  select ENGINE_LOCK_ID,ENGINE_TRANSACTION_ID,LOCK_MODE,LOCK_TYPE,INDEX_NAME,OBJECT_SCHEMA,OBJECT_NAME,LOCK_DATA,LOCK_STATUS,THREAD_ID from performance_schema.data_locks;
mysql> select locked_table_name,locked_index,waiting_pid,waiting_lock_id,blocking_lock_id,blocking_pid from sys.innodb_lock_waits;

mysql> select THREAD_ID,EVENT_ID,EVENT_NAME,SQL_TEXT from performance_schema.events_statements_history where THREAD_ID in (56,57) order by THREAD_ID,EVENT_ID;

select * from information_schema.innodb_locks;

select * from information_schema.innodb_lock_waits

Unknown table ‘INNODB_LOCKS' in information_schema

#查看死锁
select * from performance_schema.data_locks;

#查看死锁等待时间
select * from performance_schema.data_lock_waits;