linux MySql from the replication configuration Master main

In M A S T E R & lt establish a server S L A V E account server replicated data

[root@master ~]# mysql

mysql> grant replication slave,replication client on *.* to 'allentuns'@'192.168.2.200' identified by '1234@6@'; Query OK, 0 rows affected (0.02 sec)

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

113

mysql> show grants for 'allentuns'@'192.168.2.200'; # View authorized users

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

| Grants for [email protected] |

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

| GRANT REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'allentuns'@'192.168.2.200' IDENTIFIED BY PASSWORD '*

7B8E3D52A612E2CB04E31B43FCDC20A07317E332 '|

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

1 row in set (0.00 sec)

In S L A V E authorized user on the server connection test

[root@slave ~]# mysql -uallentuns -p1234@6@ -h 192.168.2.100

Warning: Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 6

Server version: 5.6.12-log MySQL Community Server (GPL)

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql

Modify M A S T E R & lt on the server My S Q L D main configuration file

[Root @ master ~] # vim /usr/local/mysql/my.cnf log-bin = master-bin # binary log files binlog_format = mixed # binary log file index server-id = 1 # for identification ID

port = 3306 #Mysql default port number basedir = / usr / local / mysql / #Mysql source directory datadir = / mydata / data # data storage directory path

socket = /var/lib/mysql/mysql.sock # socket file path

innodb_file_per_table = 1 # 1 per table file

114

[root@master ~]# service mysqld restart

Modified S L A V E on the server Mys QL D main configuration file

[root@slave ~]# vim /usr/local/mysql/my.cnf

# Log-bin = master-bin # Comment binary log file, if and when the other server from the primary server, otherwise closed

#binlog_format = mixed # Comment this line

From the service does not start automatically when the thread skip_slave_start = 1 # Start Service

read_only = 1 # Set Slave Server is read only

server-id = 10 relay_log = relay_log relay_log_index = relay_log.index port = 3306

basedir = /usr/local/mysql/

datadir = /mydata/data

socket = /var/lib/mysql/mysql.sock innodb_file_per_table = 1

[root@slave ~]# service mysqld restart

See M A S T E R & lt server binary log log events and locations for the binary S L A V E

Server replication

mysql> RESET MASTER; # empty binary log Query OK, 0 rows affected (0.05 sec) mysql> show master status;

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

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

| master-bin.000003 | 120 | | | |

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

1 row in set (0.00 sec)

Notes: File: representation from the log start copying Position: indicates the start of copying bit offset from this event

115

In S L A V E synchronization server M A S T E R & lt server data above

mysql> CHANGE MASTER TO

-> MASTER_HOST='192.168.2.100',

-> MASTER_USER='allentuns',

-> MASTER_PASSWORD='1234@6@',

-> MASTER_PORT=3306,

-> MASTER_LOG_FILE='master-bin.000003',

-> MASTER_LOG_POS=120;

Query OK, 0 rows affected, 2 warnings (0.38 sec) mysql> help change master to # get help Name: 'CHANGE MASTER TO'

Description: Syntax:

CHANGE MASTER TO option [, option] ... CHANGE MASTER TO MASTER_HOST='master2.mycompany.com', MASTER_USER='replication', MASTER_PASSWORD='bigs3cret', MASTER_PORT=3306, MASTER_LOG_FILE='master2-bin.001', MASTER_LOG_POS=4, MASTER_CONNECT_RETRY=10;

Start S L A V E replicated server and view the status of the thread

mysql> start slave; # Slave server thread start Query OK, 0 rows affected (0.02 sec)

mysql> show slave status\G;

116

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

Slave_IO_State: Waiting for master to send event Master_Host: 192.168.2.100 #Master server address Master_User: allentuns # connection Master server user name Master_Port: listening port Connect_Retry 3306 #Master server: 60 # retry interval

Master_Log_File: binary log files Read_Master_Log_Pos master-bin.000003 # I / O threads to read: 120 # I / binary event log file location Relay_Log_File O thread reads: the relay log file relay_log.000002 #SQL thread is read Relay_Log_Pos: 284 #SQL threads read and execute the relay event log file location Relay_Master_Log_File: master-bin.000003

Slave_IO_Running: IO thread state Slave_SQL_Running Yes #Slave server: SQL Server thread status Yes #Slave

Replicate_Do_DB: # Replicate following representation is used to indicate the beginning of the database or table which does not require synchronization in Replicate_Ignore_DB replication:

Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table:

Last_Errno: 0 #SQL thread reads log parameters number of errors Last_Error: #SQL thread reads log parameter error message

Recently Exec_Master_Log_Pos 0 # Value for the SQL_SLAVE_SKIP_COUNTER:: Skip_Counter 120

Relay_Log_Space: 451

Until_Condition: None # all existing relay logs the total size of Until_Log_File:

Until_Log_Pos: 0

117

Master_SSL_CA_File:

Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key:

Seconds_Behind_Master: 0 # behind the Master server time 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: 84774a86-3ee8-11e4-a268-000c29ad35d7

Master_Info_File: /mydata/data/master.info

SQL_Delay: 0

SQL_Remaining_Delay: NULL

Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to u pdate it

Master_Retry_Count: 86400

Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: Executed_Gtid_Set: Auto_Position: 0

ERROR:

No query specified

In S L A V E threads started View Server

[root@slave ~]# mysql -e "show processlist;"

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

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

In M A S T E R & lt server creates a database and S L A V E to verify the existence on the server

### server and create a database Master View

[root@master ~]# mysql -e 'create database mydbtest;' [root@master ~]# mysql -e 'show databases;'

| Database |

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

| information_schema |

| mydbtest |

| mysql |

| performance_schema |

| test |

### View in Slave server has 'mydbtest' database

[root@slave ~]# mysql -e 'show databases;'

| Database |

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

| information_schema |

| Mydbtest | # database has been successfully synchronized to the slave server

| mysql |

| performance_schema |

| test |

In M A S T E R & lt and S L A V E server View binary event log has been updated location

### View Master Server

[root@master ~]# mysql -e 'show master status;'

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

### View Slave server

[root@slave ~]# mysql -e 'show slave status\G;' |grep 'Read_Master_Log_Pos' Read_Master_Log_Pos: 226

5 . Master-Slave monitor

5.1Linux sendmail mail system 139 to an external mailbox

1, the installation and sendmail mailx

# yum -y install sendmail mailx

2, modify the configuration file

# cp /etc/mail.rc /etc/mail.rc.bak

# cat >> /etc/mail.rc << EOF

set [email protected] smtp=smtp.139.com

set [email protected] smtp-auth-password=yi15093547036 smtp- auth=login

EOF

3, restart the service

# service sendmail restart

4, send a test message

echo "I Love You" | mail -s " Message Subject: MIS you" [email protected]

5.2 were created on login from the server (Slave), only limited local operation to ensure safety

mysql> grant all privileges on *.* to "zhengyansheng"@"127.0.0.1" identified by "passwor

Query OK, 0 rows affected (0.04 sec)

mysql> grant all privileges on *.* to "zhengyansheng"@"localhost" identified by "passwor d123";

Query OK, 0 rows affected (0.00 sec)

5.3Mysql monitor script

#!/bin/bash

#check MySQL_Slave Status

#crontab time 00:10

MYSQLPORT=`netstat -na|grep "LISTEN"|grep "3306"|awk -F[:" "]+ '{print $4}'` MYSQLIP=`ifconfig eth1|grep "inet addr" | awk -F[:" "]+ '{print $4}'` STATUS=$(/usr/local/mysql/bin/mysql -u zhengyansheng -ppassword123 -S /tmp/mysql. sock -e "show slave status\G" | grep -i "running")

IO_env=`echo $STATUS | grep IO | awk ' {print $2}'` SQL_env=`echo $STATUS | grep SQL | awk '{print $2}'` DATA=`date +"%y-%m-%d %H:%M:%S"`

if [ "$MYSQLPORT" == "3306" ]

then

echo "mysql is running" else

mail -s "warn!server: $MYSQLIP mysql is down" [email protected] fi

if [ "$IO_env" = "Yes" -a "$SQL_env" = "Yes" ]

then

echo "Slave is running!" else

echo "####### $DATA #########">> /mydata/check_mysql_log/check_mysql_slave.l

echo "Slave is not running!" >> /mydata/check_mysql_log/check_mysql_slave.log

echo "Slave is not running!" | mail -s "warn! $MYSQLIP MySQL Slave is not running" 1326

[email protected] be

5.4 Timing script execution monitoring

[root@slave ~]# crontab -l

*/1 * * * * root /bin/sh /mydata/check_mysql_health.sh

5.5 Test: stop slave process, see if you can receive e-mail

mysql> stop slave;

Query OK, 0 rows affected (0.01 sec)

mysql> show slave status\G

*************************** 1. row *************************** Slave_IO_State:

Master_Host: 192.168.2.100

Master_User: allentuns

Master_Port: 3306

Connect_Retry: 60

Master_Log_File: master-bin.000003

Read_Master_Log_Pos: 226

Relay_Log_File: relay_log.000005

Relay_Log_Pos: 284

Relay_Master_Log_File: master-bin.000003

Slave_IO_Running: No #IO thread has stopped Slave_SQL_Running: No #SQL thread has stopped Replicate_Do_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: 226

Relay_Log_Space: 615

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: Replicate_Ignore_Server_Ids: Master_Server_Id: 1

Master_Info_File: /mydata/data/master.info

SQL_Delay: 0

SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Master_Retry_Count: 86400

Master_Bind: Last_IO_Error_Timestamp: Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: Executed_Gtid_Set: Auto_Position: 0

1 row in set (0.00 sec)

Semi-synchronous replication master from

linux MySql from the replication configuration Master main

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