Mysql-MHA高可用实验测试
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说明：centos6.5mysql5.5.37mha4mysql-manager-0.55mha4mysql-node-0.54manager192.168.1.1db1192.168.1.2db2192.168.1.3db3192.168.1.4配置mysql主从db1:server
说明：
centos 6.5 mysql 5.5.37 mha4mysql-manager-0.55 mha4mysql-node-0.54
manager 192.168.1.1
db1 192.168.1.2
db2 192.168.1.3
db3 192.168.1.4
配置mysql主从
db1:
server-id = 1
read_only = 1
relay_log_purge=0
binlog_format=mixed
db2,db3忽略
db1主
grant replication slave on *.* to mharep@'192.168.1.%' identified by 'passwd';
flush privileges;
stop slave;
#设置复制权限帐号
GRANT ALL PRIVILEGES ON *.* TO 'mha_manager'@'192.168.1.%' IDENTIFIED BY '123456';
reset master;
show master status\G
db2备
grant replication slave on *.* to mharep@'192.168.1.%' identified by 'passwd';
GRANT ALL PRIVILEGES ON *.* TO 'mha_manager'@'192.168.1.%' IDENTIFIED BY '123456';
flush privileges;
reset master;
slave stop;
change master to MASTER_HOST='192.168.1.2', MASTER_PORT=3306,MASTER_USER='mharep', MASTER_PASSWORD='passwd',master_log_file='mysql-bin.000001', master_log_pos=107;
slave start;
show slave status\G;
db3从
reset master;
slave stop;
GRANT ALL PRIVILEGES ON *.* TO 'mha_manager'@'192.168.1.%' IDENTIFIED BY '123456';
flush privileges;
change master to MASTER_HOST='192.168.1.2', MASTER_PORT=3306,MASTER_USER='mharep', MASTER_PASSWORD='passwd',master_log_file='mysql-bin.000001', master_log_pos=107;
slave start;
show slave status\G;
配置双机互信
manager
ssh-keygen -t rsa
for i in db1 db2 db3;do ssh-copy-id -i ~/.ssh/id_rsa.pub root@$i;done
db1主
ssh-keygen -t rsa
for i in manager db2 db3;do ssh-copy-id -i ~/.ssh/id_rsa.pub root@$i;done
db2备 和 db3从 配置略
安装mysql-MHA
https://downloads.mariadb.com/files/MHA
wget https://downloads.mariadb.com/files/MHA/mha4mysql-manager-0.55-0.el6.noarch.rpm
wget https://downloads.mariadb.com/files/MHA/mha4mysql-node-0.54-0.el6.noarch.rpm
db1主 db2备 db3从
yum install perl-DBD-MySQL
yum localinstall mha4mysql-node-0.54-0.el6.noarch.rpm
manager
yum install perl cpan
yum install perl-DBD-MySQL perl-Config-Tiny perl-Log-Dispatch perl-Parallel-ForkManager
#这两个yum没有安装上 perl-Log-Dispatch perl-Parallel-ForkManager
wget
wget ftp://rpmfind.net/linux/dag/redhat/el6/en/x86_64/dag/RPMS/perl-Parallel-ForkManager-0.7.5-2.2.el6.rf.noarch.rpm
wget ftp://rpmfind.net/linux/dag/redhat/el6/en/x86_64/dag/RPMS/perl-Mail-Sender-0.8.16-1.el6.rf.noarch.rpm
wget ftp://rpmfind.net/linux/dag/redhat/el6/en/x86_64/dag/RPMS/perl-Mail-Sendmail-0.79-1.2.el6.rf.noarch.rpm
rpm -ivh perl-Mail-Sender-0.8.16-1.el6.rf.noarch.rpm
rpm -ivh perl-Mail-Sendmail-0.79-1.2.el6.rf.noarch.rpm
yum localinstall perl-Log-Dispatch-2.27-1.el6.noarch.rpm
yum localinstall perl-Parallel-ForkManager-0.7.5-2.2.el6.rf.noarch.rpm
yum localinstall mha4mysql-node-0.54-0.el6.noarch.rpm
yum localinstall mha4mysql-manager-0.55-0.el6.noarch.rpm
配置mysql-MHA
[root@manager ~]# masterha_
masterha_check_repl masterha_conf_host masterha_master_switch
masterha_check_ssh masterha_manager masterha_secondary_check
masterha_check_status masterha_master_monitor masterha_stop
tar -xzf mha4mysql-manager-0.55.tar.gz
ls mha4mysql-manager-0.55/samples/conf
masterha_default.cnf app1.cnf
mkdir -p /usr/local/mha/scripts
cp mha4mysql-manager-0.55/samples/scripts/* /usr/local/mha/scripts
[root@manager ~]# vim /usr/local/mha/mha.conf
[server default]
user=mha_manager
password=123456
manager_workdir=/usr/local/mha
manager_log=/usr/local/mha/manager.log
remote_workdir=/usr/local/mha
ssh_user=root
repl_user=mharep
repl_password=passwd
ping_interval=1
secondary_check_script= masterha_secondary_check -s 192.168.1.2 -s 192.168.1.3 -s 192.168.1.4
master_ip_failover_script=/usr/local/mha/scripts/master_ip_failover
#shutdown_script= /usr/local/mha/scripts/power_manager
report_script= /usr/local/mha/scripts/send_report
master_ip_online_change_script= /usr/local/mha/scripts/master_ip_online_change
[server1]
hostname=192.168.1.2
ssh_port=22
master_binlog_dir=/var/mysql/log
candidate_master=1
[server2]
hostname=192.168.1.3
ssh_port=22
master_binlog_dir=/var/mysql/log
candidate_master=1
[server3]
hostname=192.168.1.4
ssh_port=22
master_binlog_dir=/var/mysql/log
no_master=1
#验证ssh通讯
masterha_check_ssh --conf=/usr/local/mha/mha.conf
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