1:準備階段
兩臺服務器一主一從
我這裏採用了yum的方式進行安裝，如想使用rpm安裝，請自行下載rpm包
安裝epel拓展源
國外的速度是在是太慢，我這裏選擇了阿里的拓展源，PS 感謝馬雲。
[root@tudou ~]# rm -rf /etc/yum.repos.d/* [root@tudou ~]# wget -P /etc/yum.repos.d/ http://mirrors.aliyun.com/repo/epel-6.repo
關閉防火牆
[root@tudou ~]# iptables -F
2:安裝heartbeat 以及依賴
[root@tudou ~]# yum install -y heartbeat [root@tudou ~]# yum install -y libnet
3:拷貝樣例文件並配置
heartbeat 給我們提供了一些樣例配置，在/usr/share/doc/heartbeat
[root@tudou ~]# cd /usr/share/doc/heartbeat-3.0.4/ [root@tudou heartbeat-3.0.4]# ls apphbd.cf AUTHORS COPYING ha.cf README authkeys ChangeLog COPYING.LGPL haresources [[email protected]]# cp authkeys ha.cf haresources /etc/ha.d/
編輯認證文件(authkeys)
auth 3 #1 crc #2 sha1 HI! 3 md5 Hello!
authkeys文件用於設定Heartbeat的認證方式，共有3種可用的認證方 式，即crc、md5和sha1。3種認證方式的安全性依次提高，但是佔用的系統資源也依次增加。如果Heartbeat集羣運行在安全的網絡上，可以使 用crc方式；如果HA每個節點的硬件配置很高，建議使用sha1，這種認證方式安全級別最高；如果是處於網絡安全和系統資源之間，可以使用md5認證方 式。這裏我們使用md5認證方式，設置如下：
PS：確保該文件權限爲600
-rw-------. 1 root root 643 Aug 7 14:10 authkeys
配置心跳的監控(haresources)
node1 192.168.1.122/24/eth0:0 nginx
指定 node1調用nginx服務，系統附加一個虛擬IP 192.168.1.122給eth0:0
這裏如果node1宕機後，node2可以自動啓動nginx服務，並新分配IP 192.168.1.122給node2的eth0:0
配置主配置文件(ha.conf)
logfile /var/log/ha_log/ha-log.log ## ha的日誌文件記錄位置。如沒有該目錄，則需 要手動添加 ucast eth0 192.168.1.107 ##探測對方ip keepalive 2 ##設定心跳(監測)時間時間爲2秒 warntime 10 deadtime 30 initdead 120 hopfudge 1 udpport 694 ##使用udp端口694 進行心跳監測 auto_failback on ##當主啓動時備切換 node node1 ##節點 node node2 ##節點2 ping 192.168.1.1 ##通過ping 網關來監測心跳是否正常。 respawn hacluster /usr/lib64/heartbeat/ipfail ##自動拉起進程 apiauth ipfail gid=root uid=root debugfile /Datas/logs/ha_log/ha-debug.log
拷貝配置文件到備機
[[email protected]]# scp ha.cf haresources authkeys [email protected]:/etc/ha.d/ [email protected]'s password: ha.cf 100% 682 0.7KB/s 00:00 haresources 100% 5888 5.8KB/s 00:00 authkeys 100% 643 0.6KB/s 00:00 [[email protected]]#
啓動hearbeat /etc/init.d/heartbeat start
查看日誌 tail -f /var/log/ha_log/ha-log.log
heartbeat 第一次啓動非常慢，不要着急,耐心等耐，當vip啓動完成,基本就沒問題了
Aug 08 16:56:46 node1 heartbeat: [1557]: info: ************************** Aug 08 16:56:46 node1 heartbeat: [1557]: info: Configuration validated. Starting heartbeat 3.0.4 Aug 08 16:56:46 node1 heartbeat: [1558]: info: heartbeat: version 3.0.4 Aug 08 16:56:46 node1 heartbeat: [1558]: WARN: change_logfile_ownership: failed to chown dbgfile: No such file or directory Aug 08 16:56:46 node1 heartbeat: [1558]: info: Heartbeat generation: 1470604473 Aug 08 16:56:46 node1 heartbeat: [1558]: info: glib: ucast: write socket priority set to IPTOS_LOWDELAY on eth0 Aug 08 16:56:46 node1 heartbeat: [1558]: info: glib: ucast: bound send socket to device: eth0 Aug 08 16:56:46 node1 heartbeat: [1558]: info: glib: ucast: set SO_REUSEPORT(w) Aug 08 16:56:46 node1 heartbeat: [1558]: info: glib: ucast: bound receive socket to device: eth0 Aug 08 16:56:46 node1 heartbeat: [1558]: info: glib: ucast: set SO_REUSEPORT(w) Aug 08 16:56:46 node1 heartbeat: [1558]: info: glib: ucast: started on port 694 interface eth0 to 192.168.1.107 Aug 08 16:56:46 node1 heartbeat: [1558]: info: glib: ping heartbeat started. Aug 08 16:56:46 node1 heartbeat: [1558]: info: G_main_add_TriggerHandler: Added signal manual handler Aug 08 16:56:46 node1 heartbeat: [1558]: info: G_main_add_TriggerHandler: Added signal manual handler Aug 08 16:56:46 node1 heartbeat: [1558]: info: G_main_add_SignalHandler: Added signal handler for signal 17 Aug 08 16:56:46 node1 heartbeat: [1558]: info: Local status now set to: 'up' Aug 08 16:56:47 node1 heartbeat: [1558]: info: Link 192.168.1.1:192.168.1.1 up. Aug 08 16:56:47 node1 heartbeat: [1558]: info: Status update for node 192.168.1.1: status ping Aug 08 16:58:46 node1 heartbeat: [1558]: WARN: node node2: is dead Aug 08 16:58:46 node1 heartbeat: [1558]: info: Comm_now_up(): updating status to active Aug 08 16:58:46 node1 heartbeat: [1558]: info: Local status now set to: 'active' Aug 08 16:58:46 node1 heartbeat: [1558]: info: Starting child client "/usr/lib64/heartbeat/ipfail " (0,0) Aug 08 16:58:46 node1 heartbeat: [1558]: WARN: No STONITH device configured. Aug 08 16:58:46 node1 heartbeat: [1558]: WARN: Shared disks are not protected. Aug 08 16:58:46 node1 heartbeat: [1558]: info: Resources being acquired from node2. Aug 08 16:58:46 node1 heartbeat: [1570]: info: Starting "/usr/lib64/heartbeat/ipfail " as uid 0 gid 0 (pid 1570) /usr/lib/ocf/resource.d//heartbeat/IPaddr(IPaddr_192.168.1.122)[1613]: 2016/08/08_16:58:46 INFO: Resource is stopped Aug 08 16:58:46 node1 heartbeat: [1572]: info: Local Resource acquisition completed. Aug 08 16:58:57 node1 heartbeat: [1558]: info: Local Resource acquisition completed. (none) Aug 08 16:58:57 node1 heartbeat: [1558]: info: local resource transition completed. Aug 08 17:05:27 node1 heartbeat: [1558]: WARN: Shutdown delayed until current resource activity finishes. Aug 08 17:11:19 HaMaster heartbeat: [1241]: info: Pacemaker support: false Aug 08 17:11:19 HaMaster heartbeat: [1241]: ERROR: Current node [hamaster] not in configuration! Aug 08 17:11:19 HaMaster heartbeat: [1241]: info: By default, cluster nodes are named by `uname -n` and must be declared with a 'node' directive in the ha.cf file. Aug 08 17:11:19 HaMaster heartbeat: [1241]: info: See also: http://linux-ha.org/wiki/Ha.cf#node_directive Aug 08 17:11:19 HaMaster heartbeat: [1241]: WARN: Logging daemon is disabled --enabling logging daemon is recommended Aug 08 17:11:19 HaMaster heartbeat: [1241]: ERROR: Configuration error, heartbeat not started. Aug 08 21:16:49 HaMaster heartbeat: [1220]: info: Pacemaker support: false Aug 08 21:16:49 HaMaster heartbeat: [1220]: ERROR: Current node [hamaster] not in configuration! Aug 08 21:16:49 HaMaster heartbeat: [1220]: info: By default, cluster nodes are named by `uname -n` and must be declared with a 'node' directive in the ha.cf file. Aug 08 21:16:49 HaMaster heartbeat: [1220]: info: See also: http://linux-ha.org/wiki/Ha.cf#node_directive Aug 08 21:16:49 HaMaster heartbeat: [1220]: WARN: Logging daemon is disabled --enabling logging daemon is recommended Aug 08 21:16:49 HaMaster heartbeat: [1220]: ERROR: Configuration error, heartbeat not started. Aug 08 21:18:34 node1 heartbeat: [1510]: info: Pacemaker support: false Aug 08 21:18:34 node1 heartbeat: [1510]: WARN: Logging daemon is disabled --enabling logging daemon is recommended Aug 08 21:18:34 node1 heartbeat: [1510]: info: ************************** Aug 08 21:18:34 node1 heartbeat: [1510]: info: Configuration validated. Starting heartbeat 3.0.4 Aug 08 21:18:34 node1 heartbeat: [1511]: info: heartbeat: version 3.0.4 Aug 08 21:18:34 node1 heartbeat: [1511]: info: Heartbeat generation: 1470604474 Aug 08 21:18:34 node1 heartbeat: [1511]: info: glib: ucast: write socket priority set to IPTOS_LOWDELAY on eth0 Aug 08 21:18:34 node1 heartbeat: [1511]: info: glib: ucast: bound send socket to device: eth0 Aug 08 21:18:34 node1 heartbeat: [1511]: info: glib: ucast: set SO_REUSEPORT(w) Aug 08 21:18:34 node1 heartbeat: [1511]: info: glib: ucast: bound receive socket to device: eth0 Aug 08 21:18:34 node1 heartbeat: [1511]: info: glib: ucast: set SO_REUSEPORT(w) Aug 08 21:18:34 node1 heartbeat: [1511]: info: glib: ucast: started on port 694 interface eth0 to 192.168.1.110 Aug 08 21:18:34 node1 heartbeat: [1511]: info: glib: ping heartbeat started. Aug 08 21:18:34 node1 heartbeat: [1511]: info: G_main_add_TriggerHandler: Added signal manual handler Aug 08 21:18:34 node1 heartbeat: [1511]: info: G_main_add_TriggerHandler: Added signal manual handler Aug 08 21:18:34 node1 heartbeat: [1511]: info: G_main_add_SignalHandler: Added signal handler for signal 17 Aug 08 21:18:34 node1 heartbeat: [1511]: info: Local status now set to: 'up' Aug 08 21:18:35 node1 heartbeat: [1511]: info: Link 192.168.1.1:192.168.1.1 up. Aug 08 21:18:35 node1 heartbeat: [1511]: info: Status update for node 192.168.1.1: status ping Aug 08 21:20:35 node1 heartbeat: [1511]: WARN: node node2: is dead Aug 08 21:20:35 node1 heartbeat: [1511]: info: Comm_now_up(): updating status to active Aug 08 21:20:35 node1 heartbeat: [1511]: info: Local status now set to: 'active' Aug 08 21:20:35 node1 heartbeat: [1511]: info: Starting child client "/usr/lib64/heartbeat/ipfail " (0,0) Aug 08 21:20:35 node1 heartbeat: [1511]: WARN: No STONITH device configured. Aug 08 21:20:35 node1 heartbeat: [1511]: WARN: Shared disks are not protected. Aug 08 21:20:35 node1 heartbeat: [1511]: info: Resources being acquired from node2. Aug 08 21:20:35 node1 heartbeat: [1521]: info: Starting "/usr/lib64/heartbeat/ipfail " as uid 0 gid 0 (pid 1521) harc(default)[1522]: 2016/08/08_21:20:35 info: Running /etc/ha.d//rc.d/status status mach_down(default)[1557]: 2016/08/08_21:20:35 info: /usr/share/heartbeat/mach_down: nice_failback: foreign resources acquired mach_down(default)[1557]: 2016/08/08_21:20:35 info: mach_down takeover complete for node node2. Aug 08 21:20:35 node1 heartbeat: [1511]: info: mach_down takeover complete. Aug 08 21:20:35 node1 heartbeat: [1511]: info: Initial resource acquisition complete (mach_down) /usr/lib/ocf/resource.d//heartbeat/IPaddr(IPaddr_192.168.1.122)[1595]: 2016/08/08_21:20:35 INFO: Resource is stopped Aug 08 21:20:35 node1 heartbeat: [1523]: info: Local Resource acquisition completed. harc(default)[1696]: 2016/08/08_21:20:35 info: Running /etc/ha.d//rc.d/ip-request-resp ip-request-resp ip-request-resp(default)[1696]: 2016/08/08_21:20:35 received ip-request-resp 192.168.1.122/24/eth0:0 OK yes ResourceManager(default)[1717]: 2016/08/08_21:20:35 info: Acquiring resource group: node1 192.168.1.122/24/eth0:0 nginx /usr/lib/ocf/resource.d//heartbeat/IPaddr(IPaddr_192.168.1.122)[1744]: 2016/08/08_21:20:35 INFO: Resource is stopped ResourceManager(default)[1717]: 2016/08/08_21:20:35 info: Running /etc/ha.d/resource.d/IPaddr 192.168.1.122/24/eth0:0 start IPaddr(IPaddr_192.168.1.122)[1875]: 2016/08/08_21:20:35 INFO: Adding inet address 192.168.1.122/24 with broadcast address 192.168.1.255 to device eth0 (with label eth0:0) IPaddr(IPaddr_192.168.1.122)[1875]: 2016/08/08_21:20:35 INFO: Bringing device eth0 up IPaddr(IPaddr_192.168.1.122)[1875]: 2016/08/08_21:20:35 INFO: /usr/libexec/heartbeat/send_arp -i 200 -r 5 -p /var/run/resource-agents/send_arp-192.168.1.122 eth0 192.168.1.122 auto not_used not_used /usr/lib/ocf/resource.d//heartbeat/IPaddr(IPaddr_192.168.1.122)[1849]: 2016/08/08_21:20:35 INFO: Success ResourceManager(default)[1717]: 2016/08/08_21:20:36 info: Running /etc/init.d/nginx start Aug 08 21:20:45 node1 heartbeat: [1511]: info: Local Resource acquisition completed. (none) Aug 08 21:20:45 node1 heartbeat: [1511]: info: local resource transition completed.