HA 配置


准备：节点2 共享盘逻辑卷不能识别:
lvchange -a y /dev/vg_data01/lv_mysql
mount /dev/vg_data01/lv_mysql /mysql
测试mysql 可以正常启动关闭和登陆


yum groupinstall -y "High Availability" "High Availability Management" 


配置互信：
ssh-keygen
ssh-copy-id 192.168.1.19
ssh-copy-id 192.168.1.20
测试：
ssh db1
ssh db1
ssh db2
ssh db2


启动集群管理：
service ricci start
chkconfig ricci on


启动图形管理界面
service luci start


配置ricci 密码


passwd ricci
ricci


创建votingdisk
减小逻辑卷大小
e2fsck -f /dev/vg_data01/lv_mysql
resize2fs /dev/vg_data01/lv_mysql 490G
lvreduce -L 490G /dev/vg_data01/lv_mysql y
mount /dev/vg_data01/lv_mysql /mysql
lvcreate -n lv_voting -l 100%FREE vg_data01
mkfs.ext4 /dev/vg_data01/lv_voting
节点2
lvscan
lvchange -a y /dev/vg_data01/lv_voting
ll /dev/vg_data01/lv_voting


查看ILO口设备信息
/usr/bin/ipmitool -I lanplus -H 10.253.132.215 -U admin -P admin chassis status
查看用户
/usr/bin/ipmitool -I lanplus -H 10.253.132.215 -U admin -P admin user list






登陆图形界面
https:10.9.248.19:8084
root/P@ssw0rd


--Create cluster
name->mysql
use same passwd
DB1 ricci DB1
DB2 ricci DB2
use local package


--Add Fence
IPMI lan
DB1-FENCE 10.253.132.215 admin/admin
DB2-FENCE 10.253.132.216 admin/admin
--Failover Domain
mysql-domain
Restricted
No Failback
全部勾选、1,2


--Resource
Add IP: 10.9.248.34/24 其他默认
Add Filesystem: mysqldir /mysql /dev/vg_data01/lv_mysql forceumount
Add script: mysqlservice /home/teledb/script/rhcs_mysql.sh 




Add ResourceGP: mysql 自启动 myslq-domain ,添加资源：IP/FS/Service


修改
Nodes DB1: Add Fence method->DB1-FENCE
Add fence device:DB1-FENCE
 DB1: Add Fence method->DB2-FENCE
Add fence device:DB2-FENCE

Configure:Use Qdisk
By Device Label: voting
Network
UDP Unicast (UDPU)
++++++++++++++++++++++++++++++++++++++
创建磁盘Label: mkqdisk -l voting -c /dev/vg_data01/lv_voting
查看Label: mkqdisk -L
++++++++++++++++++++++++++++++++++++++
mkqdisk -l rhcs_voting -c /dev/vg_data/lv_voting