MySQL高可用工具，一直以来MHA使用的比较多，自从MySQL 开启GTID之后，出现了Orchestrator以及replication-manager这类新的高可用工具
1. 设置yum源
# /etc/yum.repos.d/signal18.repo
[signal18]
name=Signal18 repositories
baseurl=http://repo.signal18.io/centos/2.1/$releasever/$basearch/
gpgcheck=0
enabled=1
2. master 安装 yum install replication-manager-osc
yun -y install yum install replication-manager-osc
3. 配置文件
最小配置
[Default]
title = "ClusterTest"
db-servers-hosts = "127.0.0.1:5055,127.0.0.1:5056" //集群节点配置，主机ip:端口，用逗号分隔
db-servers-credential = "skysql:skyvodka" 管理用户密码设置。该用户所赋予的权限 RELOAD,SUPER, REPLICATION SLAVE, REPLICATION CLIENT
replication-credential = "skysql:skyvodka" // 该用户所给的权限 REPLICATION SLAVE, REPLICATION CLIENT
failover-mode = "manual"
Sample configuration for package
sudo cp /etc/replication-manager/etc/config.toml.sample.masterslave-haproxy /etc/replication-manager/config.toml
Sample configuration for archive
sudo cp /usr/local/replication-manager/etc/config.toml.sample.masterslave-haproxy /usr/local/replication-manager/etc/config.toml
[root@master ~]# vim /etc/replication-manager/config.toml
[db3306]
title = "db3306"
db-servers-hosts = "172.17.0.2:3306,172.17.0.3:3306,172.17.0.4:3306"
db-servers-prefered-master = "172.17.0.4:3306"
db-servers-credential = "super:123456"
replication-credential = "super:123456"
failover-mode = "manual"
[Default]
monitoring-datadir = "/data/replication-manager"
monitoring-sharedir = "/data/share_replication-manager"
log-level=7
log-file = "/var/log/replication-manager.log"
replication-multi-master = false
replication-multi-tier-slave = false
failover-readonly-state = true
http-server = true
http-bind-address = "0.0.0.0"
http-port = "10001"
https://docs.signal18.io/installation/setup-instructions
