MYSQL5.1雙向主從部署

時間 2019-12-28

原文原文鏈接

兩臺MySQL數據庫服務器Master和slave，Master爲主服務器，slave爲從服務器，初始狀態時，Master和slave中的數據信息相同，當Master中的數據發生變化時，slave也跟着發生相應的變化，使得master和slave的數據信息同步，達到備份的目的。mysql

要點：sql

負責在主、從服務器傳輸各類修改動做的媒介是主服務器的二進制變動日誌，這個日誌記載着須要傳輸給從服務器的各類修改動做。所以，主服務器必須激活二進制日誌功能。從服務器必須具有足以讓它鏈接主服務器並請求主服務器把二進制變動日誌傳輸給它的權限。數據庫

實驗環境：服務器

master:192.168.127.120 ---主ide

slave:192.168.127.121 ---備測試

【master192.168.127.120 配置】ui

my.cnf{spa

symbolic-links=0日誌

server-id=1orm

slave-skip-errors = all

auto_increment_increment = 2

auto_increment_offset = 2

default-storage-engine = INNODB

event_scheduler = ON

skip-external-locking

local_infile=0

master-host=192.168.127.121

master-user =slave

master-password=radiusslave

master-port=3306

log-bin = mysql-bin

binlog_format = mixed

expire_logs_days = 7

relay-log=mysqld-relay-bin

innodb_buffer_pool_size = 2G

innodb_additional_mem_pool_size = 32M

innodb_log_file_size = 256M

innodb_log_buffer_size = 16M

innodb_flush_log_at_trx_commit = 0

innodb_lock_wait_timeout = 20

innodb_thread_concurrency = 16

innodb_flush_method = O_DIRECT

innodb_max_dirty_pages_pct = 90

query_cache_type = 0

query_cache_size = 256M

lower_case_table_names=1

skip-name-resolve

}

【master192.168.127.121 配置】

my.cnf{

symbolic-links=0

#### add

server-id=2

slave-skip-errors = all

auto_increment_increment = 2

auto_increment_offset = 2

default-storage-engine = INNODB

event_scheduler = ON

skip-external-locking

local_infile=0

#master-host=192.168.127.120

#master-user =slave

#master-password=radiusslave

#master-port=3306

log-bin = mysql-bin

binlog_format = mixed

expire_logs_days = 7

relay-log=mysqld-relay-bin

innodb_buffer_pool_size = 2G

innodb_additional_mem_pool_size = 32M

innodb_log_file_size = 256M

innodb_log_buffer_size = 16M

innodb_flush_log_at_trx_commit = 0

innodb_lock_wait_timeout = 20

innodb_thread_concurrency = 16

innodb_flush_method = O_DIRECT

innodb_max_dirty_pages_pct = 90

query_cache_type = 0

query_cache_size = 256M

lower_case_table_names=1

skip-name-resolve

}

【master192.168.127.120 配置】

mysql> CREATE USER 'slave'@'%' IDENTIFIED BY 'slave123';

mysql> GRANT ALL PRIVILEGES ON *.* TO 'slave'@'localhost' IDENTIFIED BY "slave123";

mysql> GRANT ALL PRIVILEGES ON *.* TO 'slave'@'%' IDENTIFIED BY "slave123";

mysql> flush privileges;

mysql>quit

mysql>show grants for 'slave'@'%';

-----查詢master 庫中存在的二進制日誌文件號. 數據同步使用該日誌文件來實現。

mysql> show master status;

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

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

| mysql-bin.000001 | 106 | | |

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

1 row in set (0.00 sec)

mysql> show binary logs;

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

| Log_name | File_size |

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

| mysql-bin.000001 | 106 |

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

1 row in set (0.00 sec)

mysql>

【slave:192.168.127.121】配置主

mysql> stop slave;

mysql> change master to master_host='192.168.127.120',master_user='slave',master_password='slave123',master_log_file='mysql-bin.000001',master_log_pos=106;

5.6版本：master_port=38306

show slave status\G; 查看配置結果

mysql> show slave status\G;

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

Slave_IO_State: Waiting for master to send event

Master_Host: 192.168.127.120

Master_User: slave

Master_Port: 3306

Connect_Retry: 10

Master_Log_File: mysql-bin.000001

Read_Master_Log_Pos: 106

Relay_Log_File: mysqld-relay-bin.000002

Relay_Log_Pos: 251

Relay_Master_Log_File: mysql-bin.000001

Slave_IO_Running: Yes

Slave_SQL_Running: Yes

Replicate_Do_DB: mysql

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: 106

Relay_Log_Space: 407

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:

1 row in set (0.00 sec)

ERROR:

No query specified

mysql>

Slave_IO_Running: Yes

Slave_SQL_Running: Yes 此2項顯示則配置成功

【slave 192.168.127.121 配置】

mysql> CREATE USER 'slave'@'%' IDENTIFIED BY 'slave123';

mysql> GRANT ALL PRIVILEGES ON *.* TO 'slave'@'localhost' IDENTIFIED BY "slave123"

mysql> GRANT ALL PRIVILEGES ON *.* TO 'slave'@'%' IDENTIFIED BY "slave123"

mysql> flush privileges;

mysql>quit

mysql>show grants for 'slave'@'%';

-----查詢master 庫中存在的二進制日誌文件號. 數據同步使用該日誌文件來實現。

mysql> show master status;

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

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

| mysql-bin.000005 | 106 | | |

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

1 row in set (0.00 sec)

mysql> show binary logs;

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

| Log_name | File_size |

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

| mysql-bin.000001 | 125 |

| mysql-bin.000002 | 125 |

| mysql-bin.000003 | 125 |

| mysql-bin.000004 | 125 |

| mysql-bin.000005 | 106 |

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

5 rows in set (0.00 sec)

【master :192.168.127.121】配置主

mysql> stop slave;

mysql> change master to master_host='192.168.15.92',master_user='slave',master_password='slave123',master_log_file='mysql-bin.000009',master_log_pos=120;

5.6版本:master_port=38306

show slave status\G; 查看配置結果

mysql> show slave status\G;

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

Slave_IO_State: Waiting for master to send event

Master_Host: 192.168.127.121

Master_User: slave

Master_Port: 3306

Connect_Retry: 60

Master_Log_File: mysql-bin.000005

Read_Master_Log_Pos: 106

Relay_Log_File: mysqld-relay-bin.000002