错误模拟
查看主库从库数据
- 主库
mysql> select * from test.t1 ;
+----+------+
| c1 | c2 |
+----+------+
| 1 | 11 |
| 2 | 2 |
+----+------+
2 rows in set (0.00 sec)
- 从库
mysql> select * from test.t1 ;
+----+------+
| c1 | c2 |
+----+------+
| 1 | 11 |
| 2 | 2 |
+----+------+
2 rows in set (0.00 sec)
向从库中插入数据
mysql> insert into test.t1 values (3,3) ;
Query OK, 1 row affected (0.04 sec)
主库插入重复数据
mysql> insert into test.t1 values (3,33) ;
Query OK, 1 row affected (0.01 sec)
查看同步状态
mysql> show slave status \G ;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.2.61
Master_User: dao
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 7275
Relay_Log_File: node2-relay-bin.000006
Relay_Log_Pos: 996
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: No
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 1062
Last_Error: Could not execute Write_rows event on table test.t1; Duplicate entry '3' for key 'PRIMARY', Error_code: 1062; handler error HA_ERR_FOUND_DUPP_KEY; the event's master log mysql-bin.000001, end_log_pos 7244
Skip_Counter: 0
Exec_Master_Log_Pos: 7021
Relay_Log_Space: 1497
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: NULL
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 1062
Last_SQL_Error: Could not execute Write_rows event on table test.t1; Duplicate entry '3' for key 'PRIMARY', Error_code: 1062; handler error HA_ERR_FOUND_DUPP_KEY; the event's master log mysql-bin.000001, end_log_pos 7244
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: 03fde241-9a55-11e8-aa12-000c291f013a
Master_Info_File: /mysql1/data/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp: 180811 19:05:24
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: 03fde241-9a55-11e8-aa12-000c291f013a:1-15
Executed_Gtid_Set: 03fde241-9a55-11e8-aa12-000c291f013a:1-14,
f63b765b-9c1d-11e8-aa1e-005056296858:1-2
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
ERROR:
No query specified
错误解决
手工同步数据
- 停止同步
mysql> stop slave ;
Query OK, 0 rows affected (0.00 sec)
- 修改数据
mysql> update test.t1 set c2=33 where c1=3 ;
Query OK, 1 row affected (0.27 sec)
Rows matched: 1 Changed: 1 Warnings: 0
- 跳过GTID
mysql> SET @@SESSION.GTID_NEXT= '03fde241-9a55-11e8-aa12-000c291f013a:15' ;
Query OK, 0 rows affected (0.00 sec)
mysql> begin; commit;
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
mysql> SET SESSION GTID_NEXT = AUTOMATIC;
Query OK, 0 rows affected (0.00 sec)
- 开启复制
mysql> start slave ;
Query OK, 0 rows affected (0.01 sec)
- 查看复制状态
mysql> show slave status \G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.2.61
Master_User: dao
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 7275
Relay_Log_File: node2-relay-bin.000007
Relay_Log_Pos: 454
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: 7275
Relay_Log_Space: 1757
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_UUID: 03fde241-9a55-11e8-aa12-000c291f013a
Master_Info_File: /mysql1/data/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: 03fde241-9a55-11e8-aa12-000c291f013a:1-15
Executed_Gtid_Set: 03fde241-9a55-11e8-aa12-000c291f013a:1-15,
f63b765b-9c1d-11e8-aa1e-005056296858:1-3
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
使用工具同步数据
- 跳过错误
mysql> SET @@SESSION.GTID_NEXT= '03fde241-9a55-11e8-aa12-000c291f013a:15' ;
Query OK, 0 rows affected (0.00 sec)
mysql> begin ; commit ;
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
mysql> SET SESSION GTID_NEXT = AUTOMATIC;
Query OK, 0 rows affected (0.00 sec)
- 启动从库
mysql> start slave ;
Query OK, 0 rows affected (0.08 sec)
- 查看同步状态
mysql> show slave status \G ;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.2.61
Master_User: dao
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 7275
Relay_Log_File: node2-relay-bin.000006
Relay_Log_Pos: 1250
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: 7275
Relay_Log_Space: 1497
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_UUID: 03fde241-9a55-11e8-aa12-000c291f013a
Master_Info_File: /mysql1/data/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: 03fde241-9a55-11e8-aa12-000c291f013a:1-15
Executed_Gtid_Set: 03fde241-9a55-11e8-aa12-000c291f013a:1-15,
f63b765b-9c1d-11e8-aa1e-005056296858:1-2
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
ERROR:
- 主库检查冲突数据
[root@node1 ~]# su - mysql
[mysql@node1 ~]$ clear
[mysql@node1 ~]$ pt-table-checksum --host='192.168.2.61' --user=dao --password=dao --create-replicate-table --nocheck-replication-filters --replicate=test.checksums --no-check-binlog-format --databases=test
TS ERRORS DIFFS ROWS CHUNKS SKIPPED TIME TABLE
08-11T19:21:07 0 1 3 1 0 1.179 test.t1
- 同步数据
[mysql@node1 ~]$ pt-table-sync --execute --sync-to-master 192.168.2.62 --user=dao --password=dao
- 查询主库数据
mysql> select * from test.t1 ;
+----+------+
| c1 | c2 |
+----+------+
| 1 | 11 |
| 2 | 2 |
| 3 | 33 |
+----+------+
- 查看从库数据
mysql> select * from test.t1 ;
+----+------+
| c1 | c2 |
+----+------+
| 1 | 11 |
| 2 | 2 |
| 3 | 33 |
+----+------+
使用skip-slave-errors跳过错误
- 修改配置文件
[mysql@node2 ~]$ cat /mysql1/mysql1.cnf
[client]
port = 3306
socket = /tmp/mysql1.sock
[mysqld]
port = 3306
socket = /tmp/mysql1.sock
#skip-grant-tables
basedir = /usr/local/mysql
datadir = /mysql1/data
pid-file = /mysql1/mysql1.pid
log-error = /mysql1/mysql1.log
log-bin=/mysql1/data/mysql-bin
server_id = 2
slave-skip-errors=1032,1062
log-slave-updates=1
#gtid
gtid_mode=on
log_slave_updates=1
enforce_gtid_consistency=1
- 重启Mysql
[mysql@node2 ~]$ mysqld --defaults-file=/mysql1/mysql1.cnf &
[1] 3161
- 从库先插入数据
mysql> insert into test.t1 values (4,4) ;
Query OK, 1 row affected (0.02 sec)
- 主库插入冲突数据
mysql> insert into test.t1 values (4,44) ;
Query OK, 1 row affected (0.02 sec)
- 查看同步状态
此时同步并不报错,但是主从数据不一致
mysql> show slave status \G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.2.61
Master_User: dao
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 11739
Relay_Log_File: node2-relay-bin.000008
Relay_Log_Pos: 1216
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: 11739
Relay_Log_Space: 1463
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_UUID: 03fde241-9a55-11e8-aa12-000c291f013a
Master_Info_File: /mysql1/data/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: 03fde241-9a55-11e8-aa12-000c291f013a:1-25
Executed_Gtid_Set: 03fde241-9a55-11e8-aa12-000c291f013a:1-25,
f63b765b-9c1d-11e8-aa1e-005056296858:1-3
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
- 查看主库数据
mysql> select * from test.t1 ;
+----+------+
| c1 | c2 |
+----+------+
| 1 | 11 |
| 2 | 2 |
| 3 | 33 |
| 4 | 44 |
+----+------+
4 rows in set (0.00 sec)
- 查看从库数据
mysql> select * from test.t1
-> ;
+----+------+
| c1 | c2 |
+----+------+
| 1 | 11 |
| 2 | 2 |
| 3 | 33 |
| 4 | 4 |
+----+------+
4 rows in set (0.00 sec)