试验环境,MySQL主主复制
主库10.72.16.112
从库10.72.16.50
一直有个疑问,利用sql_log_bin=0可以临时在客户端停止将操作记入binlog中,如果使用source命令导入批量SQL会有同样的效果吗。今天有事就测试了一把
对hch库的tb1表进行试验,原数据情况如下,主从数据都是一致的
主库
root@localhost:mysql.sock [hch]>select * from tb1;
+----+-------+
| id | cname |
+----+-------+
| 1 | php |
| 2 | java |
| 3 | go |
| 4 | test |
| 5 | test1 |
| 6 | test2 |
| 7 | test3 |
| 8 | test4 |
| 9 | test5 |
| 10 | test6 |
| 11 | test7 |
| 12 | test8 |
+----+-------+
12 rows in set (0.10 sec)
从库
mysql> select * from hch.tb1;
+----+-------+
| id | cname |
+----+-------+
| 1 | php |
| 2 | java |
| 3 | go |
| 4 | test |
| 5 | test1 |
| 6 | test2 |
| 7 | test3 |
| 8 | test4 |
| 9 | test5 |
| 10 | test6 |
| 11 | test7 |
| 12 | test8 |
+----+-------+
12 rows in set (0.01 sec)
编写sql文件
insert into tb1(cname) values('test3');
insert into tb1(cname) values('test4');
insert into tb1(cname) values('test5');
insert into tb1(cname) values('test6');
insert into tb1(cname) values('test7');
insert into tb1(cname) values('test8');
在主库上做试验
# 临时关闭sql_log_bin参数
root@localhost:mysql.sock [hch]>show variables like "sql_log_bin";
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| sql_log_bin | ON |
+---------------+-------+
1 row in set (0.39 sec)
root@localhost:mysql.sock [hch]>set sql_log_bin=0;
Query OK, 0 rows affected (0.00 sec)
root@localhost:mysql.sock [hch]>show variables like "sql_log_bin";
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| sql_log_bin | OFF |
+---------------+-------+
1 row in set (0.00 sec)
# 执行导入sql命令
root@localhost:mysql.sock [hch]>source sql.sh;
Query OK, 1 row affected (0.08 sec)
Query OK, 1 row affected (0.03 sec)
Query OK, 1 row affected (0.06 sec)
Query OK, 1 row affected (0.00 sec)
Query OK, 1 row affected (0.00 sec)
Query OK, 1 row affected (0.03 sec)
对比主从之间的对比结果
# 主库查询执行结果
root@localhost:mysql.sock [hch]>select * from tb1;
+----+-------+
| id | cname |
+----+-------+
| 1 | php |
| 2 | java |
| 3 | go |
| 4 | test |
| 5 | test1 |
| 6 | test2 |
| 7 | test3 |
| 8 | test4 |
| 9 | test5 |
| 10 | test6 |
| 11 | test7 |
| 12 | test8 |
| 13 | test3 |
| 14 | test4 |
| 15 | test5 |
| 16 | test6 |
| 17 | test7 |
| 18 | test8 |
+----+-------+
18 rows in set (0.00 sec)
# 从库执行查询结果
mysql> select * from hch.tb1;
+----+-------+
| id | cname |
+----+-------+
| 1 | php |
| 2 | java |
| 3 | go |
| 4 | test |
| 5 | test1 |
| 6 | test2 |
| 7 | test3 |
| 8 | test4 |
| 9 | test5 |
| 10 | test6 |
| 11 | test7 |
| 12 | test8 |
+----+-------+
12 rows in set (0.11 sec)
主从同步状态查询
主库查询
root@localhost:mysql.sock [(none)]>show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 10.72.16.50
Master_User: root
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000002
Read_Master_Log_Pos: 11626109
Relay_Log_File: mysql-relay-bin-503306.000004
Relay_Log_Pos: 367
Relay_Master_Log_File: mysql-bin.000002
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: 11626109
Relay_Log_Space: 628
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: 503306
Master_UUID: b7fae014-c3af-11e8-89c1-000c29bf3444
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set: 22dc7409-2cd5-11e7-888c-000c29bf3444:1-984109,
387faba7-a070-11e8-8674-000c29466957:1-53880,
671bac73-a032-11e8-a493-000c29bf3444:1-10,
909c25b1-7f67-11e8-9b9d-000c29bf3444:1,
a68949d2-a06c-11e8-bba3-000c29bf3444:1,
ee639e4e-358a-11e7-87fa-000c29466957:1-753
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name: 503306
Master_TLS_Version:
1 row in set (0.03 sec)
从库查询
mysql> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 10.72.16.112
Master_User: root
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 323113389
Relay_Log_File: relay-bin-1123306.000004
Relay_Log_Pos: 11660372
Relay_Master_Log_File: mysql-bin.000001
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: 323113389
Relay_Log_Space: 145879191
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: 56
Master_UUID: 387faba7-a070-11e8-8674-000c29466957
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: 387faba7-a070-11e8-8674-000c29466957:70-53880
Executed_Gtid_Set: 22dc7409-2cd5-11e7-888c-000c29bf3444:1-984109,
387faba7-a070-11e8-8674-000c29466957:1-53880,
671bac73-a032-11e8-a493-000c29bf3444:1-10,
909c25b1-7f67-11e8-9b9d-000c29bf3444:1,
a68949d2-a06c-11e8-bba3-000c29bf3444:1,
ee639e4e-358a-11e7-87fa-000c29466957:1-753
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name: 1123306
Master_TLS_Version:
1 row in set (0.02 sec)
ERROR:
No query specified
结论,可以看出设置sql_log_bin=0,用source命令导入SQL也可以不记入binlog中。
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