mysql 5.7 GTID如何实现主从配置

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binlog-fORMat：二进制日志的格式，有row、statement和mixed几种类型；需要注意的是：当设置隔离级别为READ-COMMITED必须设置二进制日志格式为ROW，现在mysql官方认为STATEMENT这个已经不再适合继续使用；但mixed类型在默认的事务隔离级别下，可能会导致主从数据不一致；

log-slave-updates、gtid-mode、enforce-gtid-consistency、report-port和report-host：用于启动GTID及满足附属的其它需求；

master-info-repository和relay-log-info-repository：启用此两项，可用于实现在崩溃时保证二进制及从服务器安全的功能；

sync-master-info：启用之可确保无信息丢失；

slave-paralles-workers：设定从服务器的sql线程数，根据cpu核数设定；0表示关闭多线程复制功能；

binlog-checksum、master-verify-checksum和slave-sql-verify-checksum：启用复制有关的所有校验功能；

binlog-rows-query-log-events：启用之可用于在二进制日志记录事件相关的信息，可降低故障排除的复杂度；

log-bin：启用二进制日志，这是保证复制功能的基本前提；

server-id：同一个复制拓扑中的所有服务器的id号必须惟一。

report-host：

The host name or IP address of the slave to be reported to the master during slave reGIStration. This value appears in the output of SHOW SLAVE HOSTS on the master server.

report-port:

The tcp/IP port number for connecting to the slave, to be reported to the master during slave registration.

master-info-repository:

The setting of this variable determines whether the slave logs master status and connection information to a FILE (master.info), or to a TABLE (mysql.slave_master_info)

relay-log-info-repository：

This option causes the server to log its relay log info to a file or a table.

log_slave_updates：

Whether updates received by a slave server from a master server should be logged to the slave's own binary log. Binary logging must be enabled on the slave for this variable to have any effect.

master服务器配置

编辑master的参数文件

#GTID parameter

gtid-mode=on

enforce-gtid-consistency=true

slave-parallel-workers=10

binlog-checksum=CRC32

binlog-format=ROW

log-slave-updates=true

report-port=3306

report-host=192.168.56.212

master-info-repository=TABLE

relay-log-info-repository=TABLE

sync-master-info=1

master-verify-checksum=1

slave-sql-verify-checksum=1

binlog-rows-query-log_events=1

重启master的mysql数据库

[root@ray ~]# /data/3306/mysqld restart              

Stoping MySQL...

Warning: Using a passWord on the command line interface can be insecure.

Starting MySQL...

mysql> show global variables like '%gtid%';

+--------------------------+-------+

| Variable_name            | Value |

+--------------------------+-------+

| enforce_gtid_consistency | ON    |

| gtid_executed            |       |

| gtid_mode                | ON    |   #说明gti功能已启动

| gtid_owned               |       |

| gtid_purged              |       |

+--------------------------+-------+

5 rows in set (0.01 sec)

创建同步用户

mysql> GRANT REPLICATION SLAVE ON *.* TO 'rep'@'%' IDENTIFIED BY '123456';

Query OK, 0 rows affected (0.78 sec)

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

从服务器slave配置

my.cnf参数文件配置

#GTID parameter

gtid-mode=on

enforce-gtid-consistency=true

slave-parallel-workers=10

binlog-checksum=CRC32

relay-log = /data/3307/logs/relay-log

relay-log-index = /data/3307/logs/relay-log.index

binlog-format=ROW

log-slave-updates=true

report-port=3307

report-host=192.168.56.212

master-info-repository=TABLE

relay-log-info-repository=TABLE

sync-master-info=1

sync_relay_log = 1

sync_relay_log_info = 1

master-verify-checksum=1

slave-sql-verify-checksum=1

binlog-rows-query-log_events=1

relay_log_recovery = ON

重启mysql数据库

[root@ray ~]# /data/3307/mysqld restart             

Stoping MySQL...

Warning: Using a password on the command line interface can be insecure.

Starting MySQL...

mysql> show global variables like '%gtid%';

+--------------------------+-------+

| Variable_name            | Value |

+--------------------------+-------+

| enforce_gtid_consistency | ON    |

| gtid_executed            |       |

| gtid_mode                | ON    |

| gtid_owned               |       |

| gtid_purged              |       |

+--------------------------+-------+

5 rows in set (0.56 sec)

change master to  

master_host='192.168.56.212',  

master_user='rep',  

master_password='123456',  

master_port=3306,  

master_auto_position = 1;  

mysql> change master to  

    ->  master_host='192.168.56.212',  

    ->  master_user='rep',  

    ->  master_password='123456',  

    ->  master_port=3306,  

    ->  master_auto_position = 1;  

Query OK, 0 rows affected, 2 warnings (0.59 sec)

mysql> start slave;

Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> show slave status\G

*************************** 1. row ***************************

               Slave_IO_State: Waiting for master to send event

                  Master_Host: 192.168.56.212

                  Master_User: rep

                  Master_Port: 3306

                Connect_Retry: 60

              Master_Log_File: ray-bin.000009

          Read_Master_Log_Pos: 588

               Relay_Log_File: relay-log.000003

                Relay_Log_Pos: 797

        Relay_Master_Log_File: ray-bin.000009

             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: 588

              Relay_Log_Space: 1175

              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: 97e8847a-ffdf-11e6-87ed-08002736c224

             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: 97e8847a-ffdf-11e6-87ed-08002736c224:1-2

            Executed_Gtid_Set: 97e8847a-ffdf-11e6-87ed-08002736c224:1-2

                Auto_Position: 1

         Replicate_Rewrite_DB:

                 Channel_Name:

           Master_TLS_Version:

1 row in set (0.00 sec)

参数：

master-info-repository=TABLE

relay-log-info-repository=TABLE

把master.info 和relay.info 保存在表中，默认是myisam引擎，官方建议修改为innodb

mysql> use mysql;

Reading table information for completion of table and column names

You can turn off this feature to get a quicker startup with -A

Database changed

mysql> alter table slave_master_info engine=innodb;

Query OK, 0 rows affected (0.29 sec)

Records: 0  Duplicates: 0  Warnings: 0

mysql> alter table slave_relay_log_info engine=innodb;

Query OK, 0 rows affected (0.07 sec)

Records: 0  Duplicates: 0  Warnings: 0

mysql> alter table slave_worker_info engine=innodb;

Query OK, 0 rows affected (0.13 sec)

Records: 0  Duplicates: 0  Warnings: 0

忽略过滤表：

配置文件，需要重启

replicate-ignore-table=test.t1

在线动态修改，无需重启

CHANGE REPLICATION FILETER REPLICATE_DO_DB=(DB1,DB2);

CHANGE REPLICATION FILETER REPLICATE_IGNORE_DB=(DB1,DB2);

CHANGE REPLICATION FILETER REPLICATE_DO_TABLE=(DB1.T1);

CHANGE REPLICATION FILETER REPLICATE_IGNORE_TABLE=(DB1.T1);

CHANGE REPLICATION FILETER REPLICATE_WILD_DO_TABLE=(DB1.T%);

CHANGE REPLICATION FILETER REPLICATE_WILD_IGNORE_TABLE=(DB%.T%);

CHANGE REPLICATION FILETER REPLICATE_REWRITE_DB=(FROM_DB,TO_DB);

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