标签：mysql fabric
IP规划
主：192.168.1.2，
从：192.168.1.4，
管理主机：192.168.1.5
管理主机要安装mysql-connector-python和mysql-utilities
Mysql-python连接器下载地址：http://dev.mysql.com/downloads/connector/python/
rpm -ivh mysql-connector-python-2.0.4-1.el6.src.rpm
# wget -c http://dev.mysql.com/get/Downloads/MySQLGUITools/mysql-utilities-1.5.3.zip
# unzip mysql-utilities-1.5.3.zip
# cd mysql-utilities-1.5.3
# python ./setup.py build
# python ./setup.py install
在三台数据库执行
GRANT ALL ON fabric.* TO fabric@‘%‘ IDENTIFIED BY ‘fabric@123‘;
FLUSH PRIVILEGES;
在管理主机执行
vi /etc/mysql/fabric.cfg
[DEFAULT]
prefix =
sysconfdir = /etc
logdir = /var/log
[statistics]
prune_time = 3600
[logging]
url = file:///var/log/fabric.log
level = INFO
[storage]
auth_plugin = mysql_native_password
database = fabric
user = fabric
address = localhost:3306
connection_delay = 1
connection_timeout = 6
password = fabric@123
connection_attempts = 6
[failure_tracking]
notification_interval = 60
notification_clients = 50
detection_timeout = 1
detection_interval = 6
notifications = 300
detections = 3
failover_interval = 0
prune_time = 3600
[servers]
password = fabric@123
user = fabric
unreachable_timeout = 5
[connector]
ttl = 1
[client]
password =
[protocol.xmlrpc]
disable_authentication = no
ssl_cert =
realm = MySQL Fabric
ssl_key =
ssl_ca =
threads = 5
user = admin
address = localhost:32274
password =
[executor]
executors = 5
[sharding]
prune_limit = 10000
mysqldump_program = /usr/bin/mysqldump
mysqlclient_program = /usr/bin/mysql
[protocol.mysql]
disable_authentication = no
ssl_cert =
ssl_key =
ssl_ca =
user = admin
address = localhost:32275
password = abc123
填充Backing Store信息
我们通过执行以下命令来生成fabric数据库，具体如下：
mysqlfabric manage setup --param=storage.user=fabric
Finishing initial setup
=======================
Password for admin user is not yet set.
Password for admin/xmlrpc:
Repeat Password:
Password set.
Password set.
No result returned
管理密码设置为admin
填加HA组的成员
mysqlfabric group add mygroup 192.168.1.2:3306
因为binlog已经配置了，怀疑是gtid没有配置的问题，传统的主从复制机制已经不适合这个应用场景
现在配置gtid
在主库配置，注意主从的server-id不能一样
在my.cnf添加
gtid_mode=ON
log-bin
log-slave-updates
enforce-gtid-consistency
执行命令
grant replication slave,replication client on *.* to slave@‘%‘identified by ‘itvgd123‘;
flush privileges
再从库上配置
gtid_mode=ON
log-bin
log-slave-updates
enforce-gtid-consistency
执行命令
change master to master_host=‘192.168.1.2‘, master_user=‘slave‘,master_password=‘itvgd123‘, master_auto_position=1;
flush privileges；
start slave;
show slave status \G;
配置了gtid主从后该报错消失
再次添加节点
根据报错信息百度不出结果，用天行浏览器谷歌，找到
http://fossies.org/linux/mysql-utilities/mysql/fabric/server.py
找到mysql-utilities的源码了
初步看了下
猜测和mysql 的uuid有关，猛然想起，几个数据库是拷贝过去的，改了uuid后重新提添加，添加成功
mysqlfabric group add mygroup 192.168.1.2:3306
mysqlfabric group lookup_servers mygroup
查看组成员信息
选举一个主库
mysqlfabric group promote mygroup
激活故障自动切换
mysqlfabric group activate mygroup
切换测试
现在192.168.1.2是从库，192.168.1.4是主库
现在我们把192.168.1.4停掉
service mysqld stop
查看mysql集群状态
mysqlfabric group lookup_servers mygroup
我们看到192.168.1.4已经被认为处于失败状态，192.168.1.2已经被提升为主库
现在把192.168.1.4开起来
可见即便是192.168.1.4重新启动他的转态依然不会改回原先正常的转态
需要手动修改他的状态
mysqlfabric server set_status aca4f313-59a1-11e5-95ff-000c29397430 spare
再次修改状态
mysqlfabric server set_status aca4f313-59a1-11e5-95ff-000c29397430 secondary
常用相关命令
mysqlfabricgroup create mygroup #创建HA组
mysqlfabricgroup destroy mygroup #删除HA组
mysqlfabricgroup add mygroup 192.168.247.132:3306 #添加组成员
mysqlfabricgroup remove mygroup c505ce10-9bc0-11e4-bfd4-000c290e7abe #移出组成员
mysqlfabricgroup lookup_servers mygroup #查看组成员
mysqlfabricgroup promote mygroup #选举master
mysqlfabric groupactivate mygroup #激活自动故障转移
mysqlfabric group deactivatemygroup #禁用自动故障转移
mysqlfabric serverset_status server_uuid status #变更服务器状态
mysqlfabrichelp manage #manage命令帮助
mysqlfabrichelp group #group命令帮助
mysqlfabrichelp server #server命令帮助
总结：HA支持的状态值为primary,secondary,spare,faulty。它在HA组中的状态不会自动恢复，需要手动改变服务器状态。
本文出自 “运维笔记” 博客，请务必保留此出处http://axlewire.blog.51cto.com/1418858/1697897
标签：mysql fabric
原文地址：http://axlewire.blog.51cto.com/1418858/1697897
