集群 pacemaker ha

#以node01為例修改主機名

#node02需要同樣的配置

[[email protected] ~]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
10.10.10.5 node01
10.10.10.6 node02
#關閉防火墻以及SElinux

#node02需要同樣配置

[[email protected] ~]# systemctl stop firewalld

[[email protected] ~]# systemctl disable firewalld
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
Removed symlink /etc/systemd/system/basic.target.wants/firewalld.service.
[[email protected] ~]# setenforce 0
[[email protected] ~]# sed -i ‘s/SELINUX=enforcing/SELINUX=disabled/‘ /etc/selinux/config

#配置pacemaker的EPEL源

#node02需要同樣配置

[[email protected] ~]# cat /etc/yum.repos.d/pacemaker.repo
[pacemaker]
name=pacemaker
baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
enabled=1
gpgcheck=0
#下載pacemaker安裝包

#node02需要同樣配置

[[email protected] ~]# yum install pacemaker pcs resource-agents -y
#配置節點之間認證

#node02需要同樣配置

[[email protected] ~]# ssh-keygen -t rsa -P ‘‘

[[email protected] ~]# ssh-copy-id node02

#修改pacemaker的用戶密碼（pacemaker使用的用戶是hacluster，軟件安裝完後用戶以添加）

#node02需要同樣配置

[[email protected] ~]# passwd hacluster

#啟動pcs服務

#node02需要同樣配置

[[email protected] ~]# systemctl restart pcsd
#設置節點認證

#只在node01操作，所有操作會自動同步到node02

[[email protected] ~]# pcs cluster auth node01 node02
Username: hacluster
Password:
node02: Authorized
node01: Authorized
#創建一個名為mycluster的集群，並將node01和node02加入到集群節點上

#只在node01操作，所有操作會自動同步到node02

[[email protected] ~]# pcs cluster setup --force --name mycluster node01 node02
Destroying cluster on nodes: node01, node02...
node01: Stopping Cluster (pacemaker)...
node02: Stopping Cluster (pacemaker)...
node01: Successfully destroyed cluster
node02: Successfully destroyed cluster

Sending cluster config files to the nodes...
node01: Succeeded
node02: Succeeded

Synchronizing pcsd certificates on nodes node01, node02...
node02: Success
node01: Success

Restarting pcsd on the nodes in order to reload the certificates...
node02: Success
node01: Success

#啟動集群

[[email protected] ~]# pcs cluster start --all
node01: Starting Cluster...
node02: Starting Cluster...
#查看集群狀態

[[email protected] ~]# pcs status
Cluster name: mycluster
WARNING: no stonith devices and stonith-enabled is not false
Stack: corosync
Current DC: node02 (version 1.1.15-11.el7_3.5-e174ec8) - partition with quorum
Last updated: Mon Sep 11 22:54:14 2017 Last change: Mon Sep 11 22:53:39 2017 by hacluster via crmd on node02

2 nodes and 0 resources configured

Online: [ node01 node02 ]

No resources


Daemon Status:
corosync: active/disabled
pacemaker: active/disabled
pcsd: active/disabled

本文出自 “openstack+kvm+linux” 博客，請務必保留此出處http://wangzhice.blog.51cto.com/12875919/1964517

pacemaker搭建集群