![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250426102528-680cb498b9f35.png\")
<\/p>\n\u96c6\u7fa4\u670d\u52a1\u5668：\u9ad8\u53ef\u7528\u96c6\u7fa4\u642d\u5efa\u8be6\u7ec6\u6b65\u9aa4,\u96c6\u7fa4\u670d\u52a1\u5668\u600e\u4e48\u90e8\u7f72?<\/p>\n
\u9ad8\u53ef\u7528\u96c6\u7fa4（High Availability Cluster）\u7684\u6838\u5fc3\u76ee\u6807\u662f\u901a\u8fc7\u5197\u4f59\u548c\u6545\u969c\u8f6c\u79fb\u673a\u5236\u786e\u4fdd\u670d\u52a1\u6301\u7eed\u53ef\u7528\u3002\u4ee5\u4e0b\u662f\u57fa\u4e8e\u4e0d\u540c\u573a\u666f\u7684\u9ad8\u53ef\u7528\u96c6\u7fa4\u642d\u5efa\u8be6\u7ec6\u6b65\u9aa4\u548c\u90e8\u7f72\u65b9\u6cd5，\u6db5\u76d6Web\u670d\u52a1\u3001\u6570\u636e\u5e93\u548c\u901a\u7528\u5e94\u7528\u573a\u666f：<\/p>\n
\u670d\u52a1\u5668\u89c4\u5212<\/p>\n
\u81f3\u5c112\u53f0\u7269\u7406\/\u865a\u62df\u673a（\u63a8\u83503\u8282\u70b9\u907f\u514d\u8111\u88c2）<\/p>\n<\/li>\n
\u793a\u4f8bIP\u5206\u914d：<\/p>\n
Node1: 192.168.1.10<\/p>\n<\/li>\n
Node2: 192.168.1.11<\/p>\n<\/li>\n
VIP（\u865a\u62dfIP）: 192.168.1.100<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n
\u7cfb\u7edf\u521d\u59cb\u5316<\/p>\n
# \u6240\u6709\u8282\u70b9\u6267\u884c
\nsystemctl stop firewalld && systemctl disable firewalld # \u5173\u95ed\u9632\u706b\u5899（\u751f\u4ea7\u73af\u5883\u9700\u914d\u7f6e\u89c4\u5219）
\nsetenforce 0 && sed -i 's\/SELINUX=enforcing\/SELINUX=disabled\/g' \/etc\/selinux\/config # \u5173\u95edSELinux
\nyum install -y vim net-tools ntp
\nntpdate pool.ntp.org # \u65f6\u95f4\u540c\u6b65（\u5efa\u8bae\u90e8\u7f72chrony\u6216NTP\u670d\u52a1） <\/li>\n
SSH\u4e92\u4fe1\u914d\u7f6e<\/p>\n
# \u6240\u6709\u8282\u70b9\u751f\u6210\u5bc6\u94a5\u5e76\u4e92\u76f8\u5206\u53d1
\nssh-keygen -t rsa
\nssh-copy-id -i ~\/.ssh\/id_rsa.pub root@node1
\nssh-copy-id -i ~\/.ssh\/id_rsa.pub root@node2 <\/li>\n
\u5b89\u88c5Keepalived<\/p>\n
yum install -y keepalived <\/li>\n
\u914d\u7f6eKeepalived（\u4e3b\u8282\u70b9）<\/p>\n
# \/etc\/keepalived\/keepalived.conf
\nglobal_defs {
\n router_id LVS_MASTER
\n}<\/p>\n
vrrp_instance VI_1 {
\n state MASTER
\n interface eth0
\n virtual_router_id 51
\n priority 100
\n advert_int 1
\n authentication {
\n auth_type PASS
\n auth_pass 1111
\n }
\n virtual_ipaddress {
\n 192.168.1.100\/24 dev eth0
\n }
\n} <\/li>\n
\u5907\u8282\u70b9\u914d\u7f6e<\/p>\n
state BACKUP
\npriority 90 # \u4f18\u5148\u7ea7\u4f4e\u4e8e\u4e3b\u8282\u70b9 <\/li>\n
\u542f\u52a8\u670d\u52a1<\/p>\n
systemctl enable keepalived && systemctl start keepalived <\/li>\n<\/ul>\n
# \u5b89\u88c5HAProxy
\nyum install -y haproxy<\/p>\n
# \u914d\u7f6e\/etc\/haproxy\/haproxy.cfg
\nfrontend http_front
\n bind 192.168.1.100:80
\n default_backend http_back<\/p>\n
backend http_back
\n balance roundrobin
\n server web1 192.168.1.10:80 check
\n server web2 192.168.1.11:80 check <\/p>\n
# \u6240\u6709\u8282\u70b9\u6267\u884c
\nyum install -y mariadb-server galera<\/p>\n
# \u914d\u7f6e\/etc\/my.cnf.d\/galera.cnf
\n[galera]
\nwsrep_on=ON
\nwsrep_provider=\/usr\/lib64\/galera\/libgalera_smm.so
\nwsrep_cluster_address="gcomm:\/\/node1,node2"
\nbinlog_format=row
\ndefault_storage_engine=InnoDB <\/p>\n
# \u5728\u7b2c\u4e00\u4e2a\u8282\u70b9\u542f\u52a8
\ngalera_new_cluster<\/p>\n
# \u5176\u4ed6\u8282\u70b9\u52a0\u5165
\nsystemctl start mariadb <\/p>\n
SHOW STATUS LIKE 'wsrep_cluster_size'; <\/p>\n
yum install -y pacemaker corosync pcs
\nsystemctl enable pcsd && systemctl start pcsd
\npasswd hacluster # \u8bbe\u7f6e\u96c6\u7fa4\u8ba4\u8bc1\u5bc6\u7801（\u6240\u6709\u8282\u70b9\u4e00\u81f4） <\/p>\n
pcs cluster auth node1 node2 # \u8ba4\u8bc1\u8282\u70b9
\npcs cluster setup –name my_cluster node1 node2
\npcs cluster start –all
\npcs cluster enable –all <\/p>\n
# \u521b\u5efa\u865a\u62dfIP\u8d44\u6e90
\npcs resource create Virtual_IP ocf:heartbeat:IPaddr2 ip=192.168.1.100 cidr_netmask=24 op monitor interval=30s<\/p>\n
# \u521b\u5efaApache\u670d\u52a1\u8d44\u6e90
\npcs resource create Web_Server systemd:httpd op monitor interval=60s<\/p>\n
# \u7ed1\u5b9a\u8d44\u6e90\u7ec4
\npcs resource group add Web_Group Virtual_IP Web_Server<\/p>\n
# \u914d\u7f6e\u6545\u969c\u8f6c\u79fb\u7b56\u7565
\npcs constraint colocation add Web_Group Virtual_IP INFINITY
\npcs constraint order Virtual_IP then Web_Group <\/p>\n
yum install -y drbd kmod-drbd84<\/p>\n
# \u914d\u7f6e\/etc\/drbd.d\/global_common.conf
\nresource r0 {
\n protocol C;
\n disk { on-io-error detach; }
\n on node1 {
\n device \/dev\/drbd0;
\n disk \/dev\/sdb1;
\n address 192.168.1.10:7788;
\n }
\n on node2 {
\n device \/dev\/drbd0;
\n disk \/dev\/sdb1;
\n address 192.168.1.11:7788;
\n }
\n} <\/p>\n
drbdadm create-md r0
\nsystemctl enable drbd && systemctl start drbd<\/p>\n
# \u4e3b\u8282\u70b9\u521d\u59cb\u5316
\ndrbdadm primary r0 –force
\nmkfs.xfs \/dev\/drbd0 <\/p>\n
\u6545\u969c\u8f6c\u79fb\u6d4b\u8bd5<\/p>\n
# \u624b\u52a8\u89e6\u53d1\u4e3b\u8282\u70b9\u6545\u969c
\npcs node standby node1 # Pacemaker\u96c6\u7fa4
\nsystemctl stop keepalived # Keepalived\u6d4b\u8bd5 <\/li>\n
\u8111\u88c2\u9632\u62a4\u914d\u7f6e<\/p>\n
# Pacemaker\u4e2d\u914d\u7f6equorum
\npcs property set no-quorum-policy=freeze <\/li>\n
\u7f51\u7edc\u9694\u79bb\u5904\u7406<\/p>\n
\u914d\u7f6eSTONITH（Shoot The Other Node In The Head）<\/p>\n<\/li>\n<\/ul>\n
pcs stonith create fence_node1 fence_ipmilan ipaddr=192.168.1.10 login=admin passwd=password <\/li>\n
\u96c6\u7fa4\u72b6\u6001\u68c0\u67e5<\/p>\n
pcs status # Pacemaker
\ncrm_mon -1 # \u5b9e\u65f6\u76d1\u63a7
\ndrbdadm status # DRBD\u72b6\u6001 <\/li>\n
\u65e5\u5fd7\u7ba1\u7406<\/p>\n
Corosync\u65e5\u5fd7：\/var\/log\/cluster\/corosync.log<\/p>\n<\/li>\n
Pacemaker\u65e5\u5fd7：\/var\/log\/pacemaker.log<\/p>\n<\/li>\n<\/ul>\n<\/li>\n
\u63a8\u8350\u5de5\u5177<\/p>\n
Web\u7ba1\u7406\u754c\u9762：hawk（Pacemaker）<\/p>\n<\/li>\n
\u76d1\u63a7\u544a\u8b66：Prometheus + Grafana + Alertmanager<\/p>\n<\/li>\n<\/ul>\n<\/li>\n
\u7f51\u7edc\u5ef6\u8fdf：\u8282\u70b9\u95f4\u5ef6\u8fdf\u9700<1ms，\u5efa\u8bae\u4e07\u5146\u7f51\u7edc+\u72ec\u7acb\u5fc3\u8df3\u7ebf<\/p>\n<\/li>\n
\u6570\u636e\u4e00\u81f4\u6027：\u5f02\u6b65\u590d\u5236\u573a\u666f\u9700\u8bc4\u4f30RPO（\u6062\u590d\u70b9\u76ee\u6807）<\/p>\n<\/li>\n
\u7248\u672c\u4e00\u81f4\u6027：\u6240\u6709\u8282\u70b9\u8f6f\u4ef6\u7248\u672c\u9700\u4e25\u683c\u4e00\u81f4<\/p>\n<\/li>\n
\u538b\u529b\u6d4b\u8bd5：\u4f7f\u7528sysbench\u6216jmeter\u6a21\u62df\u9ad8\u5e76\u53d1\u573a\u666f<\/p>\n<\/li>\n
\u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4，\u60a8\u53ef\u4ee5\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u9ad8\u53ef\u7528\u65b9\u6848\u3002\u5b9e\u9645\u90e8\u7f72\u4e2d\u5efa\u8bae\u5148\u5728\u6d4b\u8bd5\u73af\u5883\u9a8c\u8bc1，\u751f\u4ea7\u73af\u5883\u64cd\u4f5c\u65f6\u4fdd\u7559\u5b8c\u6574\u56de\u6eda\u65b9\u6848\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb844\u6b21\uff0c\u70b9\u8d5e19\u6b21\uff0c\u6536\u85cf17\u6b21\u3002\u96c6\u7fa4\u670d\u52a1\u5668\uff1a\u9ad8\u53ef\u7528\u96c6\u7fa4\u642d\u5efa\u8be6\u7ec6\u6b65\u9aa4,\u96c6\u7fa4\u670d\u52a1\u5668\u600e\u4e48\u90e8\u7f72?_\u96c6\u7fa4\u670d\u52a1\u5668\u600e\u4e48\u90e8\u7f72<\/p>\n","protected":false},"author":2,"featured_media":33125,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[2670,17,97,43,2671,472,44,96],"topic":[],"class_list":["post-33126","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-2670","tag-17","tag-97","tag-43","tag-2671","tag-472","tag-44","tag-96"],"yoast_head":"\n