This document provides instructions for configuring MySQL 5.6 master-slave and master-master replication. It outlines the steps to install MySQL 5.6 RPM packages on servers, configure the master and slave servers, and verify the replication is working properly. Key steps include creating replication users, configuring the master server binlogs, stopping and starting the slave, and checking the slave status.

1. MySQL 5.6 master-slave and master-master replication.
Step by step configuration instructions.
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A MySQL server package (mysql­server­5.0.77­4.el5_5.4) is installed.
The current MySQL server package is provided by a different
vendor (CentOS) than MySQL AB, Sun Microsystems, Inc., or Oracle and/or its affiliates.
Some files may be installed to different locations, including log
files and the service startup script in /etc/init.d/.
Upgrading directly from MySQL 5.0 to MySQL 5.6 may not
be safe in all cases. A manual dump and restore using mysqldump is
recommended. It is important to review the MySQL manual's Upgrading
section for version­specific incompatibilities.
A manual upgrade is required.
­ Ensure that you have a complete, working backup of your data and my.cnf files.
­ Shut down the MySQL server cleanly
­ Remove the existing MySQL packages. Usually this command will
list the packages you should remove:
rpm ­qa | grep ­i '^mysql­'
You may choose to use 'rpm ­­nodeps ­ev <package­name>' to remove
the package which contains the mysqlclient shared library. The
library will be reinstalled by the MySQL­shared­compat package.
­ Install the new MySQL packages supplied by Oracle and/or its affiliates
­ Ensure that the MySQL server is started
­ Run the 'mysql_upgrade' program
This is a brief description of the upgrade process. Important details
can be found in the MySQL manual, in the Upgrading section.
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Mysql 5.6 RPM Installation steps
[root@test45 /]#rpm ­ivh MySQL­server­5.6.13­1.linux_glibc2.5.x86_64.rpm
[root@test45 /]#rpm ­ivh MySQL­client­5.6.13­1.linux_glibc2.5.x86_64.rpm
[root@test45 /]# rpm ­ivh MySQL­devel­5.6.13­1.linux_glibc2.5.x86_64.rpm
[root@test45 /]#service mysql restart

2. Note :­ if you get below error then
Starting MySQL ERROR! Couldn't find MySQL server (/var/lib/bin/mysqld_safe)
Starting MySQL ERROR! Couldn't find MySQL server (/var/lib/bin/mysqld_safe)
[root@test45 mysql]# service mysql restart
Shutting down MySQL.. SUCCESS!
Starting MySQL ERROR! Couldn't find MySQL server (/var/lib/bin/mysqld_safe)
[root@test45 mysql]# mkdir /var/lib/bin
[root@test45 mysql]# service mysql restart
ERROR! MySQL server PID file could not be found!
Starting MySQL ERROR! Couldn't find MySQL server (/var/lib/bin/mysqld_safe)
[root@test45 /]# find -name mysqlmanager
[root@test45 /]# find -name mysqld_safe
./usr/bin/mysqld_safe
[root@test45 /]# cp ./usr/bin/mysqld_safe /var/lib/bin/.
[root@test45 mysql]# service mysql restart
ERROR! MySQL server PID file could not be found!
Starting MySQL.. SUCCESS!
[root@test45 /]# service mysql status
SUCCESS! MySQL running (5697)
[root@test45 /]# rm -rf /usr/local/mysql/var/[MyNAS].pid
[root@test45 /]# !se
service mysql status
SUCCESS! MySQL running (5697)
Note:­ In Mysql5.6 A random root password has been set. You will find it in
'/root/.mysql_secret'.
#vim /root/.mysql_secret
Reset root password
#mysqladmin ­u root ­p'MUZOV9do' password *******
MySQL master­slave replication

3. Master 1/Slave 2 ip: 192.168.0.45
Master 2/Slave 1 ip : 192.168.0.46
Create relication user on Master 1:
mysql> grant replication slave on *.* to 'replication'@192.168.0.46 identified by 'slave';
Master 1 changes to /etc/my.cnf:
Add in Below line
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
old_passwords=2
log­bin
binlog­do­db= database name # input the database which should be replicated
binlog­ignore­db=mysql
binlog­ignore­db=test
server­id=2
[mysql.server]
user=mysql
basedir=/var/lib
[mysqld_safe]
err­log=/var/log/mysqld.log
pid­file=/var/run/mysqld/mysqld.pid
Slave 1 changes to /etc/my.cnf:
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
old_passwords=1
server­id=2
[mysql.server]
user=mysql
basedir=/var/lib
[mysqld_safe]
err­log=/var/log/mysqld.log
pid­file=/var/run/mysqld/mysqld.pid

4. On Master 1:
mysql> show master status;
+------------------------+----------+--------------+------------------+
| File
| Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------------+----------+--------------+------------------+
|mysqld-bin.000012
|
106 | adam
|
|
+------------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
On Slave 1:
mysql> stop slave;
mysql> CHANGE MASTER TO MASTER_HOST='192.168.0.45', MASTER_USER='replication',
MASTER_PASSWORD='password', MASTER_PORT=3306,MASTER_LOG_FILE='mysqld­bin.000012
', MASTER_LOG_POS=106, MASTER_CONNECT_RETRY=10;
mysql> start slave;
mysql> show slave statusG;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.0.45
Master_User: slave
Master_Port: 3306
Connect_Retry: 10
Master_Log_File: mysqld-bin.000012
Read_Master_Log_Pos: 1368129
Relay_Log_File: mysqld-relay-bin.000005
Relay_Log_Pos: 605530
Relay_Master_Log_File: mysqld-bin.000012
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: 1368129

5. Relay_Log_Space: 1367083
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
1 row in set (0.02 sec)
MySQL master­master replication
Create relication user on Slave 1:
mysql> grant replication slave on *.* to 'replication'@192.168.0.45 identified by 'slave';
Slave 1: changes to /etc/my.cnf:
Add in Below line
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
old_passwords=2
log­bin
binlog­do­db= database name # input the database which should be replicated
binlog­ignore­db=mysql
binlog­ignore­db=test
server­id=2
[mysql.server]
user=mysql
basedir=/var/lib
[mysqld_safe]

6. err­log=/var/log/mysqld.log
pid­file=/var/run/mysqld/mysqld.pid
On Slave 1:
mysql> show master status;
+------------------------+----------+--------------+------------------+
| File
| Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------------+----------+--------------+------------------+
|mysqld-bin.000018
|
303 | adam
|
|
+------------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
On Master 1:
mysql> stop slave;
mysql> CHANGE MASTER TO MASTER_HOST='192.168.0.46', MASTER_USER='replication',
MASTER_PASSWORD='password', MASTER_PORT=3306,MASTER_LOG_FILE='mysqld­bin.000018
', MASTER_LOG_POS=303, MASTER_CONNECT_RETRY=10;
mysql> start slave;
mysql> show slave statusG;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.0.46
Master_User: slave
Master_Port: 3306
Connect_Retry: 10
Master_Log_File: mysqld-bin.000012
Read_Master_Log_Pos: 1368129
Relay_Log_File: mysqld-relay-bin.000005
Relay_Log_Pos: 605530
Relay_Master_Log_File: mysqld-bin.000012
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:

7. Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 1368129
Relay_Log_Space: 1367083
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
1 row in set (0.02 sec)
P@W@n Kumar