实现功能：

可以实现MySQL的分表，以及分表之后的增加，删除，修改，查询等MySQL的一系列操作。可以扩展MySQL的主从架构，方便MySQL架构的分布式扩展。

实验测试架构为在两个MASTER上面安装了keepalived和kingshard中间件,两个master之间互为主从，两个master都有一个slave。实现MySQL和kingshard的高可用，防止单点故障。

注意：

所有关于分表的操作都必须通过kingshard连接。

Kingshard只负责分表之后的操作，所有的数据同步是MySQL主从同步自己完成。

现在node1上面keepalived配置如下keepalived.conf：

! Configuration File for keepalived

global_defs {

notification_email {

ibuler@qq.com ##出故障发送邮件给谁

}

notification_email_from keepalived@localhost ##故障用哪个邮箱发送邮件

smtp_server 127.0.0.1 ##SMTP_Server IP

smtp_connect_timeout 30 ##超时时间

router_id LVS_DEVEL ##服务器标识

}

#vrrp_script chk_http_port {

#  script "/opt/nginx.sh"

#  interval 2

#  weight 2

#}

vrrp_instance VI_1 {

state MASTER

##状态，都为BACKUP，它们会推选Master，如果你写MASTER，它就会是Master，

##当Master故障时Backup会成为Master,当原来的Master恢复后，原来的Master会成为Master

interface em1 ##发送VRRP的接口，仔细看你的是不是eth0

virtual_router_id 51 ##虚拟路由标识，同一个组应该用一个，即Master与Backup同一个

priority 100 ##重要的优先级哦

nopreempt ##不抢占，一个故障时，重启后恢复后不抢占意资源

advert_int 1 ##同步间隔时长

authentication { ##认证

auth_type PASS ##认证方式

auth_pass www.laoguang.me ##密钥

}

track_script {

chk_http_port

}

virtual_ipaddress {

192.168.1.170 ##VIP

}

}

Kingshard配置如下,ks.yaml:

# server listen addr

addr : 0.0.0.0:9696

# server user and password

user :  kingshard

password : kingshard

# if set log_path, the sql log will write into log_path/sql.log,the system log

# will write into log_path/sys.log

log_path : /tmp/kingshard

# log level[debug|info|warn|error],default error

log_level : debug

# if set log_sql(on|off) off,the sql log will not output

log_sql: on

# only log the query that take more than slow_log_time ms

#slow_log_time : 100

# the path of blacklist sql file

# all these sqls in the file will been forbidden by kingshard

#blacklist_sql_file: /Users/flike/blacklist

# only allow this ip list ip to connect kingshard

#allow_ips: 127.0.0.1

# the charset of kingshard, if you don't set this item

# the default charset of kingshard is utf8.

#proxy_charset: gbk

# node is an agenda for real remote mysql server.

nodes :

-

name : node1

# default max conns for mysql server

max_conns_limit : 32

# all mysql in a node must have the same user and password

user :  root

password : 6lapp

# master represents a real mysql master server

master : 192.168.1.231:3306

# slave represents a real mysql salve server,and the number after '@' is

# read load weight of this slave.

slave : 192.168.1.188:3306

down_after_noalive : 32

-

name : node2

# default max conns for mysql server

max_conns_limit : 32

# all mysql in a node must have the same user and password

user :  root

password : 6lapp

# master represents a real mysql master server

master : 192.168.1.189:3306

# slave represents a real mysql salve server

slave : 192.168.1.181:3306

# down mysql after N seconds noalive

# 0 will no down

down_after_noalive: 32

# schema defines sharding rules, the db is the sharding table database.

schema :

db : 6l_wangfan

nodes: [node1]

default: node1

shard:

-

table: ll_wf_user_info

key: user_id

nodes: [node1]

type: hash

locations: [6]

Node2配置类似.

备注：

kingshard是开源的产品，githup地址为：https://github.com/flike/kingshard

使用软件：

keepalive1.2.7

mysql5.6.11

kingshard1.4