View and terminate the executing thread in MySQL

View the executing thread

stay MySQL Use commands in the terminal or client tools

SHOW PROCESSLIST;
#  perhaps 
SHOW FULL PROCESSLIST;

Using commands on the command line

mysqladmin processlist;

Show results

Id	User	Host	db	Command	Time	State	Info
58651	root	localhost:7285	edu	Sleep	1468		\N
58652	root	localhost:7287	stock	Query	0	starting	show full processlist
58653	root	localhost:7286	stock	Sleep	1468		\N
58654	root	localhost:7290	\N	Sleep	1470		\N
58656	root	localhost:7293	\N	Sleep	1469		\N

Parameter description

1. Id： Thread ID , Use kill Command will be used
2. User： Currently connected users
3. Host： Which is the current connection from IP port
4. db： Currently connected database
5. Command： Connection status , Sleep :sleep, Inquire about :query, Connect :connect
6. Time： Connection duration ( second )
7. State： At present SQL The state of the statement
8. Info： The use of SQL, When the statement is too long , It may not be displayed completely .

More specific SQL Statement state （State） Explain look here

Thread termination

stay MySQL Use commands in the terminal or client tools

thread_id namely Id identification .

KILL thread_id;

Using commands on the command line

mysqladmin kill thread_id;

The termination flag is checked at a specific interval , So it may take a moment to terminate a thread , Wait for the thread to release resources , The thread will really terminate .