首页 > 云计算 > 虚拟化 > OpenStack的高可用系统构建(2)
ntp服务器安装
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yum install ntp vi /etc/ntp.conf # Hosts on local network are less restricted. #restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap ←指定访问范围 # Use public servers from the pool.ntp.org project. # Please consider joining the pool (http://www.pool.ntp.org/join.html). #server 0.centos.pool.ntp.org iburst ←Internet服务器,不需要进行注释 #server 1.centos.pool.ntp.org iburst #server 2.centos.pool.ntp.org iburst #server 3.centos.pool.ntp.org iburst server 127.127.1.0 #local clock ←hacontroller1指定为自己 fudge 127.127.1.0 stratum 10
service ntpd start chkconfig ntpd on |
安装前先停止firewall
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service iptables stop chkconfig iptabls off |
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yum install pacemaker corosync cluster-glue resource-agents |
设置/etc/corosync/corosync.conf为下面方式
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totem { version: 2 secauth: off threads: 0 rrp_mode: active clear_node_high_bit: yes token: 4000 consensus: 10000 rrp_problem_count_timeout: 3000 interface { ←心跳用的NIC,可以设置为多个 ringnumber: 0 bindnetaddr: 192.168.3.0 ← 并非内网NIC的IP,而是网络地址 mcastaddr: 226.94.1.1 mcastport: 5405 ← 多个pacemaker网卡使用同样LAN,可以变更端口号。 } } logging { fileline: on to_syslog: yes syslog_facility: local1 syslog_priority: info debug: off timestamp: on } |
启动Corosyncs,Pacemaker服务
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service corosync start chkconfig corosync on service corosync start chkconfig corosync on |
(1)corosync-cfgtool命令获得通信健康状态。
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[root@hacontroller1 ~]# corosync-cfgtool -s Printing ring status. Local node ID 33794240 RING ID 0 id = 192.168.3.2 status = ring 0 active with no faults [root@hacontroller2 ~]# corosync-cfgtool -s Printing ring status. Local node ID 50571456 RING ID 0 id = 192.168.3.2 status = ring 0 active with no faults |
(2)corosync-objctl参加HA的成员一览
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[root@hacontroller1 ~]# corosync-objctl runtime.totem.pg.mrp.srp.members runtime.totem.pg.mrp.srp.33794240.ip=r(0) ip(192.168.3.2) runtime.totem.pg.mrp.srp.33794240.join_count=1 runtime.totem.pg.mrp.srp.33794240.status=joined runtime.totem.pg.mrp.srp.50571456.ip=r(0) ip(192.168.3.3) runtime.totem.pg.mrp.srp.50571456.join_count=1 runtime.totem.pg.mrp.srp.50571456.status=joined |
到大部分不会发生大的错误。
使用下面的命令来添加pacemaker plugin到corosync服务。
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cat <<-END >>/etc/corosync/service.d/pcmk service { # Load the Pacemaker Cluster Resource Manager name: pacemaker ver: 1 } END |
※上面的操作手册没有记载,当时如果直接启动pacemaker,就会失败,必须进行上面的设定。
(1)重新启动corosync服务,加载pacemaker服务
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[root@hacontroller2 ~]# service corosync restart Signaling Corosync Cluster Engine (corosync) to terminate: [ OK ] Waiting for corosync services to unload:. [ OK ] Starting Corosync Cluster Engine (corosync): [ OK ] |
(2)启动packmaker服务
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[root@hacontroller1 ~]# service pacemaker start Starting Pacemaker Cluster Manager [ OK ] |
(3)crm_mon命令来查看pacemaker服务的状态。
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Last updated: Mon Mar 11 11:08:38 2013 Last change: Mon Mar 11 11:07:16 2013 via crmd on hacontroller1 Stack: classic openais (with plugin) Current DC: hacontroller1 - partition with quorum Version: 1.1.10-14.el6_5.2-368c726 2 Nodes configured, 2 expected votes 0 Resources configured
Online: [ hacontroller1 hacontroller2 ] |
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[root@hacontroller1 ~]# chkconfig corosync on [root@hacontroller1 ~]# chkconfig pacemaker on |
(1)安装crmsh
pacemaker集群属性必须使用crm命令行,从pacemaker 1.1.8开始crm作为独立的项目crmsh,从下面的网址下载,安装。
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wget -P /etc/yum.repos.d/ http://download.opensuse.org/repositories/network:/ha-clustering:/Stable/RedHat_RHEL-6/network:ha-clustering:Stable.repo yum -y install crmsh |
※在手册没有相关的说明。
设置pacemaker集群属性。crm configure命令,设置下面的属性。
property no-quorum-policy=ignore \
pe-warn-series-max="1000" \
pe-input-series-max="1000" \
pe-error-series-max="1000" \
cluster-recheck-interval="5min"
※no-quorum-policy=ignore当只有两个节点时需要设置。两节点以上时不要进行设置。
※pe-warn-series-max,
pe-input-series-max and pe-errorseries-max设定为1000,可以保存更多的历史纪录。
※将集群的检查期间设置为5分钟。
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[root@hacontroller1 ~]# crm configure crm(live)configure# property no-quorum-policy=ignore \ > pe-warn-series-max="1000" \ > pe-input-series-max="1000" \ > pe-error-series-max="1000" \ > cluster-recheck-interval="5min" crm(live)configure# |
到此,控制节点和网络节点所使用的pacemaker/corosysnc的安装完毕。
来自 “ ITPUB博客 ” ,链接:https://blog.itpub.net/18455/viewspace-1126155/ ,如需转载,请注明出处,否则将追究法律责任。