Mysql database two-way synchronization hot standby _ MySQL

Mysql database bidirectional synchronization hot standby bitsCN.com

Environment:

Master server: 10.224.194.239

Slave server: 10.224.194.237

Steps:

1. create backup users in Master/Slaver mysql db respectively:

Grant file on *. * TO backup@10.224.194.239 identified by 'pass ';

Grant replication slave on *. * TO backup@10.224.194.239 identified by 'pass ';

Grant file on *. * TO backup@10.224.194.237 identified by 'pass ';

Grant replication slave on *. * TO backup@10.224.194.237 identified by 'pass ';

2. configure the/etc/my. cf file on the Master server:

Server-id = 1

Binlog-do-db = test

Binlog-ignore-db = mysql

Replicate-do-db = test

Replicate-ignore-db = mysql

Master-host = 10.224.194.237

Master-user = backup

Master-password = pass

Master-port = 3306

Master-connect-retry = 60

Slave-skip-errors = all

3. configure the/etc/my. cf file on the Master server:

Server-id = 2

Binlog-do-db = test

Binlog-ignore-db = mysql

Replicate-do-db = test

Replicate-ignore-db = mysql

Master-host = 10.224.194.239

Master-user = backup

Master-password = pass

Master-port = 3306

Master-connect-retry = 60

Slave-skip-errors = all

4. restart the mysql database. the verification command is as follows:

View Master status

Show master status;

Mysql> show master status;

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

| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |

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

| Mysqllog.000003 | 301 | test | mysql |

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

1 row in set (0.00 sec)

View Slave status

Show slave status/G;

Mysql> show slave status/G;

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

Slave_IO_State: Reconnecting after a failed master event read

Master_Host: 10.224.194.239

Master_User: backup

Master_Port: 3306

Connect_Retry: 60

Master_Log_File: mysqllog.000003

Read_Master_Log_Pos: 301

Relay_Log_File: mysqlgsb-relay-bin.000082

Relay_Log_Pos: 348

Relay_Master_Log_File: mysqllog.000003

Slave_IO_Running: No

Slave_ SQL _Running: Yes

Replicate_Do_DB: test

Replicate_Ignore_DB: mysql

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: 301

Relay_Log_Space: 650

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: 0

Last_ SQL _Error:

1 row in set (0.00 sec)

ERROR:

No query specified

View the synchronization process:

Mysql> show processlist/G;

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

Id: 1

User: system user

Host:

Db: NULL

Command: Connect

Time: 4186

State: Waiting for master to send event

Info: NULL

* *************************** 2. row ***************************

Id: 2

User: system user

Host:

Db: NULL

Command: Connect

Time: 3745

State: Has read all relay log; waiting for the slave I/O thread to update it

Info: NULL

* *************************** 3. row ***************************

Id: 5

User: root

Host: mysqlpri.webex.com: 28293

Db: NULL

Command: Query

Time: 0

State: NULL

Info: show processlist

* *************************** 4. row ***************************

Id: 6

User: backup

Host: 10.224.194.237: 41729

Db: NULL

Command: Binlog Dump

Time: 135

State: Has sent all binlog to slave; waiting for binlog to be updated

Info: NULL

4 rows in set (0.00 sec)

ERROR:

No query specified

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