MariaDBstopslave用法-创新互联
1、环境描述
MariaDB 10.1.35
CentOS 6.8
2、stop slave命令
root@MariaDB0 07:55: [(none)]> help stop
ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
Connection id: 21
Current database: *** NONE ***
Name: 'STOP SLAVE'
Description:
Syntax:
STOP SLAVE [thread_types]
thread_types:
[thread_type [, thread_type] ... ]
thread_type: IO_THREAD | SQL_THREAD
Stops the slave threads. STOP SLAVE requires the SUPER privilege.
Recommended best practice is to execute STOP SLAVE on the slave before
stopping the slave server (see
http://dev.mysql.com/doc/refman/5.5/en/server-shutdown.html, for more
information).
When using the row-based logging format: You should execute STOP SLAVE
on the slave prior to shutting down the slave server if you are
replicating any tables that use a nontransactional storage engine (see
the Note later in this section). In MySQL 5.5.9 and later, you can also
use STOP SLAVE SQL_THREAD for this purpose.
Like START SLAVE, this statement may be used with the IO_THREAD and
SQL_THREAD options to name the thread or threads to be stopped.
*Note*: In MySQL 5.5, STOP SLAVE waits until the current replication
event group affecting one or more non-transactional tables has finished
executing (if there is any such replication group), or until the user
issues a KILL QUERY or KILL CONNECTION statement. (Bug #319, Bug
#38205)
URL: https://mariadb.com/kb/en/stop-slave/
root@MariaDB0 09:07: [(none)]>
root@MariaDB0 09:07: [(none)]> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.56.101
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000005
Read_Master_Log_Pos: 335
Relay_Log_File: relay-bin.000015
Relay_Log_Pos: 627
Relay_Master_Log_File: mysql-bin.000005
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 335
Relay_Log_Space: 5452
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_SSL_Crl:
Master_SSL_Crlpath:
Using_Gtid: No
Gtid_IO_Pos:
Replicate_Do_Domain_Ids:
Replicate_Ignore_Domain_Ids:
Parallel_Mode: conservative
1 row in set (0.00 sec)
ERROR: No query specified
root@MariaDB0 09:07: [(none)]> stop slave io_thread;
ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
Connection id: 22
Current database: *** NONE ***
Query OK, 0 rows affected (0.01 sec)
root@MariaDB0 09:09: [(none)]> stop slave sql_thread;
Query OK, 0 rows affected (0.00 sec)
root@MariaDB0 09:09: [(none)]> start slave io_thread;
Query OK, 0 rows affected (0.00 sec)
root@MariaDB0 09:10: [(none)]> start slave sql_thread;
Query OK, 0 rows affected (0.00 sec)
root@MariaDB0 09:10: [(none)]> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.56.101
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000005
Read_Master_Log_Pos: 335
Relay_Log_File: relay-bin.000016
Relay_Log_Pos: 541
Relay_Master_Log_File: mysql-bin.000005
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 335
Relay_Log_Space: 6040
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_SSL_Crl:
Master_SSL_Crlpath:
Using_Gtid: No
Gtid_IO_Pos:
Replicate_Do_Domain_Ids:
Replicate_Ignore_Domain_Ids:
Parallel_Mode: conservative
1 row in set (0.00 sec)
ERROR: No query specified
root@MariaDB0 09:10: [(none)]> stop slave;
Query OK, 0 rows affected (0.00 sec)
root@MariaDB0 09:10: [(none)]> start slave;
Query OK, 0 rows affected (0.00 sec)
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