标签：参数 共享 打开 waiting dex verify 0.00 sch ++
同步原理：
配置过程：
配置：
master 3307
slave 3308
==================================================主库============================================
1. 开启bin-log，保证主备库的server-id不相同
2. bin-log要放在[mysqld]模块下面
3. 检查主库的server_id
[root@MySQL ~]# mysql -uroot -proot -S /data/3307/mysql.sock -e "show variables like ‘server_id‘"; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | server_id | 1 | +---------------+-------+
4. 检查主库是否开启log_bin，如果没有开启，修改my.cnf文件进行添加：
[root@MySQL ~]# mysql -uroot -proot -S /data/3307/mysql.sock -e "show variables like ‘log_bin%‘"; +---------------------------------+---------------------------------+ | Variable_name | Value | +---------------------------------+---------------------------------+ | log_bin | ON | | log_bin_basename | /data/3307/data/mysql-bin | | log_bin_index | /data/3307/data/mysql-bin.index | | log_bin_trust_function_creators | OFF | | log_bin_use_v1_row_events | OFF | +---------------------------------+---------------------------------+
5. 连接到主库，创建用户，可以从备库登陆过来进行日志读取：
[root@MySQL ~]# mysql -uroot -proot -S /data/3307/mysql.sock
mysql> grant replication slave on *.* to ‘rep‘@‘192.168.56.99‘ identified by ‘abbott‘; Query OK, 0 rows affected, 1 warning (0.01 sec) mysql> flush privileges; Query OK, 0 rows affected (0.01 sec)
6. 锁定主库的表，然后进行备份，否则备份集将不成功
mysql> flush table with read lock; Query OK, 0 rows affected (0.00 sec)
7. 查看此时的position，确保备份完成之后不会改变
mysql> show master status; +------------------+----------+--------------+------------------+-------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+-------------------+ | mysql-bin.000003 | 600 | | | | +------------------+----------+--------------+------------------+-------------------+ 1 row in set (0.00 sec)
8. 查看log
mysql> show master logs; +------------------+-----------+ | Log_name | File_size | +------------------+-----------+ | mysql-bin.000001 | 727 | | mysql-bin.000002 | 833 | | mysql-bin.000003 | 600 | +------------------+-----------+ 3 rows in set (0.00 sec)
9. 对主库进行备份
[root@MySQL log]# mysqldump -uroot -proot -S /data/3307/mysql.sock -A -B --events --master-data=2 > /opt/rep.sql
[root@MySQL opt]# mysqldump -uroot -proot -S /data/3307/mysql.sock -A -B --master-data=1 --single-transaction >/opt/full.sql
企业推荐：不停库(使用这种方式，不需要指定binlog位置，也不需要锁表，--single-transaction参数可以屏蔽其余会话的增删改，即不需要加master_log_file和master_log_pos这两个参数)
10. 检查备份后position是否改变
mysql> show master status; +------------------+----------+--------------+------------------+-------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+-------------------+ | mysql-bin.000003 | 600 | | | | +------------------+----------+--------------+------------------+-------------------+ 1 row in set (0.00 sec)
11. 如果检查没有问题，那么就取消锁定
mysql> unlock tables; Query OK, 0 rows affected (0.00 sec)
+++++++++++++++++++++++++++++++++++++++++++++++++++备库++++++++++++++++++++++++++++++++++++++++++++++++++++
12. 在备库恢复备份的文件
[root@MySQL opt]# mysql -uroot -proot -S /data/3308/mysql.sock </opt/rep.sql
13. 查看备份是否恢复成功
[root@MySQL opt]# mysql -uroot -proot -S /data/3308/mysql.sock mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | ZX | | abbott | | mysql | | performance_schema | | sys | +--------------------+ 6 rows in set (0.00 sec)
14. 指定备库同步主库的信息
change master to MASTER_HOST=‘192.168.56.99‘, MASTER_PORT=3307, MASTER_USER=‘rep‘, MASTER_PASSWORD=‘abbott‘, MASTER_LOG_FILE=‘mysql-bin.000003‘, MASTER_LOG_POS=600; Query OK, 0 rows affected, 2 warnings (0.13 sec)
15. 查看master_info里记录的信息是否和指定同步的位置一样
[root@MySQL data]# cat master.info 24 mysql-bin.000003 600 192.168.56.99 rep abbott 3307
16. 备库开始进行同步
mysql> start slave; Query OK, 0 rows affected (0.01 sec)
17. 查看同步情况，其中参数Slave_IO_Running和Slave_SQL_Running都是yes。
mysql> show slave status\G *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.56.99 Master_User: rep Master_Port: 3307 Connect_Retry: 60 Master_Log_File: mysql-bin.000003 Read_Master_Log_Pos: 600 Relay_Log_File: MySQL-relay-bin.000002 Relay_Log_Pos: 320 Relay_Master_Log_File: mysql-bin.000003 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: 600 Relay_Log_Space: 527 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: 3b9f6e49-5a6b-11e7-b603-08002714955b Master_Info_File: /data/3308/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: Executed_Gtid_Set: Auto_Position: 0 Replicate_Rewrite_DB: Channel_Name: 1 row in set (0.00 sec)
18. 测试，在主库创建一个库abc，可以看到在备库已经同步过来。
mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | ZX | | abbott | | abc | | mysql | | performance_schema | | sys | +--------------------+ 7 rows in set (0.00 sec)
查看线程状态：
主库：
mysql> show processlist; +----+------+---------------------+--------+-------------+------+---------------------------------------------------------------+------------------+ | Id | User | Host | db | Command | Time | State | Info | +----+------+---------------------+--------+-------------+------+---------------------------------------------------------------+------------------+ | 9 | rep | 192.168.56.99:38359 | NULL | Binlog Dump | 215 | Master has sent all binlog to slave; waiting for more updates | NULL | | 10 | root | localhost | abbott | Query | 0 | starting | show processlist | +----+------+---------------------+--------+-------------+------+---------------------------------------------------------------+------------------+ 2 rows in set (0.00 sec)
备库：
mysql> show processlist; +----+-------------+-----------+--------+---------+------+--------------------------------------------------------+------------------+ | Id | User | Host | db | Command | Time | State | Info | +----+-------------+-----------+--------+---------+------+--------------------------------------------------------+------------------+ | 15 | root | localhost | abbott | Query | 0 | starting | show processlist | | 16 | system user | | NULL | Connect | 237 | Waiting for master to send event | NULL | | 17 | system user | | NULL | Connect | 144 | Slave has read all relay log; waiting for more updates | NULL | +----+-------------+-----------+--------+---------+------+--------------------------------------------------------+------------------+ 3 rows in set (0.00 sec)
要点：
生产场景快速配置mysql主从复制方案
mysql其他主从复制实现：
主服务器挂了，人工或自动切换到从服务器：http://oldboy.blog.51cto.com/2561410/1240412
可以保证同步的方式：
读写分离：
标签：参数 共享 打开 waiting dex verify 0.00 sch ++
原文地址：http://www.cnblogs.com/zx3212/p/7096880.html
