Posts Tagged ‘Master Slave Sync’

Mysql Replication

# MySQL replication MASTER setting #

server-id = 1
log-bin = /var/log/mysql/binary/mysql-bin.log
binlog-do-db = student
binlog-ignore-db = mysql
log = /var/log/mysql/mysql.log

SHELL> mkdir /var/log/mysql/

SHELL> chown mysql:mysql -R /var/log/mysql/

SHELL> mysql -u root -p
Enter password:

Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 950
Server version: 5.0.45-community-log MySQL Community Edition (GPL)

Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the buffer.

mysql> show databases;
+——————–+
| Database           |
+——————–+
| information_schema |
| cPanel             |
| cphulkd            |
| devendra           |
| eximstats          |
| horde              |
| leechprotect       |
| mysql              |
| pleskmods          |
+——————–+
9 rows in set (0.00 sec)

mysql> create database student;
Query OK, 1 row affected (0.03 sec)

mysql> show databases;
+——————–+
| Database           |
+——————–+
| information_schema |
| cPanel             |
| cphulkd            |
| devendra           |
| eximstats          |
| horde              |
| leechprotect       |
| mysql              |
| pleskmods          |
| student            |
+——————–+
10 rows in set (0.00 sec)

mysql> use student;
Database changed

mysql> create table class ( rollno INT(5) NOT NULL PRIMARY KEY AUTO_INCREMENT , name VARCHAR(30) );
Query OK, 0 rows affected (0.32 sec)

mysql> DESC class;
+——–+————-+——+—–+———+—————-+
| Field  | Type        | Null | Key | Default | Extra          |
+——–+————-+——+—–+———+—————-+
| rollno | int(5)      | NO   | PRI | NULL    | auto_increment |
| name   | varchar(30) | YES  |     | NULL    |                |
+——–+————-+——+—–+———+—————-+
2 rows in set (0.03 sec)

mysql> INSERT INTO class VALUES (”, ‘Arun Bagul’);
Query OK, 1 row affected, 1 warning (0.01 sec)

mysql> SELECT * FROM class;
+——–+————+
| rollno | name       |
+——–+————+
| 1      | BHAVESH    |
+——–+————+
1 row in set (0.00 sec)

mysql> INSERT INTO class VALUES (”, ‘Suhail Thakur’);
Query OK, 1 row affected, 1 warning (0.00 sec)

mysql> INSERT INTO class VALUES (”, ‘Bhavesh Vala’);
Query OK, 1 row affected, 1 warning (0.00 sec)

mysql> SELECT * FROM class;
+——–+—————+
| rollno | name          |
+——–+—————+
| 1      | BHAVESH       |
| 2      | Suhail Thakur |
| 3      | Bhavesh Vala  |
+——–+—————+
3 rows in set (0.00 sec)

mysql> GRANT REPLICATION SLAVE ON *.* TO ‘replication’@’192.168.0.%’ IDENTIFIED BY ‘mypwd’;
Query OK, 0 rows affected (0.01 sec)

mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.01 sec)

mysql> SHOW MASTER STATUS;
+——————+———-+—————–+——————+
| File             | Position | Binlog_Do_DB    | Binlog_Ignore_DB |
+——————+———-+—————–+——————+
| mysql-bin.000002 | 98       | student,student | mysql,mysql      |
+——————+———-+—————–+——————+
1 row in set (0.02 sec)

mysql>

mysql> SHOW PROCESSLIST;
+—-+——-+———–+——-+———+——+————+————————–+
| Id | User  | Host      | db    | Command | Time | State      | Info                     |
+—-+——-+———–+——-+———+——+————+————————–+
| 31 | root  | localhost | NULL  | Query   | 0    | NULL       | SHOW PROCESSLIST         |
| 41 | horde | localhost | horde | Sleep   | 0    |            | NULL                     |
| 42 | horde | localhost | horde | Query   | 1    | statistics | SELECT session_data FROM horde_sessionhandler WHERE session_id = ‘f70a7d64bd353917679814813a513c8f’                |
| 43 | horde | localhost | horde | Query   | 1    | statistics | SELECT session_data FROM horde_sessionhandler WHERE session_id = ‘f70a7d64bd353917679814813a513c8f’                |
+—-+——-+———–+——-+———+——+————+————————–+
4 rows in set (0.00 sec)

mysql> SHOW PROCESSLIST\G;
*************************** 1. row ***************************
Id: 31
User: root
Host: localhost
db: NULL
Command: Query
Time: 0
State: NULL
Info: SHOW PROCESSLIST

1 row in set (0.00 sec)

mysql>

SHELL> /etc/init.d/mysql restart

Shutting down MySQL… [ OK ]
Starting MySQL [ OK ]

SHELL> cd /var/log/mysql/binary/

SHELL> ls
mysql-bin.000001 mysql-bin.index

# MySQL replication SLAVE setting #

server-id=3
master-port=3306
master-host=192.168.XXX.XXX
master-user=replication
master-password=mypwd
master-connect-retry=60
replicate-do-db=student

SHELL> mysqladmin create student -u admin -p
Enter password:

SHELL> mysql -u admin -p student show databases;
+———–+
| Database  |
+———–+
| horde     |
| mysql     |
| pleskmods |
| psa       |
| student   |
+———–+
5 rows in set (0.00 sec)

mysql> use student;
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> show tables;
+——————-+
| Tables_in_student |
+——————-+
| class             |
+——————-+
1 row in set (0.00 sec)

mysql> select * from class;
+——–+—————+
| rollno | name          |
+——–+—————+
| 1      | Arun Bagul    |
| 2      | Suhail Thakur |
| 3      | Bhavesh Vala  |
| 4      | Nishit Shah   |
+——–+—————+
4 rows in set (0.00 sec)

mysql>

mysql> CHANGE MASTER TO MASTER_HOST=‘192.168.XXX.XXX’, MASTER_USER=’replication’ , MASTER_PASSWORD=’mypwd’,MASTER_LOG_FILE=’mysql-bin.000004′,MASTER_LOG_POS=412;
Query OK, 0 rows affected (0.01 sec)

mysql> start slave;
Query OK, 0 rows affected (0.00 sec)

mysql> show slave status\G;

*************************** 1. row ***************************
Slave_IO_State: Waiting for 192.168.XXX.XXX
Master_Host: 192.168.XXX.XXX
Master_User: replication
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000103
Read_Master_Log_Pos: 16995
Relay_Log_File: magnet-relay-bin.000001
Relay_Log_Pos: 4
Relay_Master_Log_File: mysql-bin.000103
Slave_IO_Running: No
Slave_SQL_Running: No
Replicate_Do_DB: auth,auth
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: 16995
Relay_Log_Space: 98
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

1 row in set (0.00 sec)

mysql> quit
Bye

SHELL> /etc/init.d/mysqld restart

Stopping MySQL: [ OK ]
Starting MySQL: [ OK ]

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