{"id":2220,"date":"2021-01-10T10:31:00","date_gmt":"2021-01-10T02:31:00","guid":{"rendered":"https:\/\/wyxxt.org.cn\/?p=2220"},"modified":"2023-12-04T14:47:35","modified_gmt":"2023-12-04T06:47:35","slug":"lvs%e7%9a%84ha%e6%90%ad%e5%bb%ba","status":"publish","type":"post","link":"https:\/\/wyxxt.org.cn\/?p=2220","title":{"rendered":"lvs\u7684HA\u642d\u5efa"},"content":{"rendered":"

\u73b0\u6709\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6848<\/h3>\n

\n HA high avaliable \u9ad8\u53ef\u7528
\n \u95ee\u9898\uff1a
\n 1\u3001lvs\u5355\u70b9\u6545\u969c\u95ee\u9898
\n 2\u3001RS\u6302\u4e86\uff0clvs\u8fd8\u6709\u8fd9\u4e2aRS\u7684\u8d1f\u8f7d\u8bb0\u5f55<\/p>\n

\u5355\u70b9\u6545\u969c\u7684\u89e3\u51b3\u65b9\u5f0f\uff1a\u4e00\u53d8\u591a
\n \u5f62\u5f0fa\uff09\u4e3b\u5907
\n \u5f62\u5f0fb\uff09\u4e3b\u4e3b
\n \u7ed3\u8bba\uff1aVIP\u53ea\u80fd\u6709\u4e00\u4e2a\uff0c\u4e3b\u5907\u5b9e\u73b0
\n \u5982\u4f55\u9009\u4e3b Paxos\u4e00\u81f4\u6027\u7b97\u6cd5<\/p>\n

RS\u6302\u4e86\uff0c\u600e\u4e48\u786e\u5b9abaidu\u6302\u4e86\uff1f
\n \u56de\u7b54\uff1aping \u4e0d\u5bf9\u7684\uff01
\n \u8bbf\u95ee\u4e00\u4e0b->\u7b49\u5c42\uff1a\u9a8c\u8bc1\u7684\u662f\u5e94\u7528\u5c42\u7684http\u534f\u8bae->\u53d1\u8bf7\u6c42\uff0c\u5224\u65ad\u8fd4\u56de 200 ok<\/p>\n

lvs:\u5185\u6838\u4e2d\u6709\u6a21\u5757\uff1aipvs <- \u589e\u52a0\u4ee3\u7801\uff1f\u7b2c\u4e09\u65b9\u5b9e\u73b0\uff1f\n \u7b2c\u4e09\u65b9\uff1a\u4eba\u4e3a\u64cd\u4f5c\uff0c\u54cd\u5e94\uff0c\u6700\u4e0d\u9760\u8c31\n \u4f01\u4e1a\u8ffd\u6c42\u81ea\u52a8\u5316\uff5e \u628a\u4eba\u89e3\u8026\u51fa\u53bb\uff5e\u7528\u7a0b\u5e8f\u66ff\u4ee3->keepalived\uff01
\n \u4ee3\u66ff\u4eba\u81ea\u52a8\u8fd0\u7ef4\uff0c\u89e3\u51b3\u5355\u70b9\u6545\u969c\uff0c\u5b9e\u73b0HA
\n 1\u3001\u76d1\u63a7\u81ea\u5df1\u670d\u52a1
\n 2\u3001Master\u901a\u544a\u81ea\u5df1\u8fd8\u6d3b\u7740\uff0cBackup\u76d1\u542cMaster\u72b6\u6001\uff0cMaster\u6302\u4e86\uff0c\u4e00\u5806Backup\u63a8\u4e3e\u51fa\u4e00\u4e2a\u65b0\u7684Master
\n 3\u3001\u914d\u7f6e\uff1aVIP\uff0c\u6dfb\u52a0ipvs\uff0ckeepalived\u662f\u6709\u914d\u7f6e\u6587\u4ef6
\n 4\u3001\u5bf9\u540e\u7aefserver\u505a\u5065\u5eb7\u68c0\u67e5
\n *\uff0ckeepalived\u662f\u4e00\u4e2a\u901a\u7528\u7684\u5de5\u5177\uff0c\u4e3b\u8981\u4f5c\u4e3aHA\u5b9e\u73b0\uff1a
\n nginx\uff0c\u53ef\u4ee5\u4f5c\u4e3a\u516c\u53f8\u7684\u8d1f\u8f7d\u5747\u8861\u6765\u7528\uff0cnginx\u6210\u4e3a\u4e86\u5355\u70b9\u6545\u969c
\n \u4e5f\u53ef\u4ee5\u7528keepalived\u6765\u89e3\u51b3\n<\/p><\/blockquote>\n

\u5b9e\u73b0\u7269\u7406\u67b6\u6784\u56fe<\/h3>\n

\"\"<\/p>\n

<\/h3>\n

\u6e05\u7406node01\u7684lvs\u914d\u7f6e<\/h4>\n
ipvsadm -C\n\nifconfig ens33:2 down\n\n<\/code><\/pre>\n
\u5b89\u88c5keepalived\u548cipvsadm<\/h4>\n
yum install keepalived ipvsadm -y\n<\/code><\/pre>\n
\u914d\u7f6ekeepalived<\/h4>\n
\/etc\/keepalived\/keepalived.conf<\/p>\n
cd \/etc\/keepalived\n\ncp keepalived.conf keepalived.conf.bak\n\nvi keepalived.conf\n<\/code><\/pre>\n
vrrp: \u865a\u62df\u8def\u7531\u5197\u4f59\u534f\u8bae\uff01<\/p>\n
node01:<\/p>\n
man keepalived.conf\n<\/code><\/pre>\n
vrrp_instance VI_1 {\n    state MASTER #node04 BACKUP\n    interface ens33\n    virtual_router_id 51\n    priority 100 #node04 50\n    advert_int 1 ##\u8bbe\u7f6e\u540c\u6b65\u65f6\u95f4\u95f4\u9694\n    authentication {\n        auth_type PASS\n        auth_pass 1111\n    }\n    virtual_ipaddress {\n        172.16.213.100\/16 dev ens33 label ens33:3 #DR\u6a21\u5f0f\u8981\u4fdd\u969c\u771f\u5b9e\u670d\u52a1\u5668\u548clvs\u5728\u540c\u4e00\u7f51\u6bb5\n    }\n}\n\n\nvirtual_server 172.16.132.100 80 {\n    delay_loop 6 #\u5065\u5eb7\u68c0\u67e5\u65f6\u95f4\u95f4\u9694\uff0c\u5355\u4f4ds\n    lb_algo rr #\u8d1f\u8f7d\u5747\u8861\u8c03\u5ea6\u7b97\u6cd5\u8bbe\u7f6e\n    lb_kind DR #\u8d1f\u8f7d\u5747\u8861\u8f6c\u53d1\u89c4\u5219\n    persistence_timeout 0 #\u4f1a\u8bdd\u4fdd\u6301\u65f6\u95f4\uff0c\u5355\u4f4ds\u3002\u751f\u4ea7\u9009\u62e9\u4e00\u4e2a\u5408\u9002\u7684\u503c\n    protocol TCP\n\n    real_server 172.16.132.132 80 {\n        weight 1\n        HTTP_GET {\n            url {\n              path \/\n              status_code 200\n            }\n            connect_timeout 3\n            nb_get_retry 3\n            delay_before_retry 3\n        }\n    }\n    real_server 172.16.132.133 80 {\n        weight 1\n        HTTP_GET {\n            url {\n              path \/\n              status_code 200\n            }\n            connect_timeout 3\n            nb_get_retry 3\n            delay_before_retry 3\n        }\n    }\n}\n\n<\/code><\/pre>\n
scp .\/keepalived.conf node04:`pwd`\n# \u62f7\u8d1d\u5b8c\u6210\u540e\uff0c\u4fee\u6539\u4e0d\u540c\u5730\u65b9\n<\/code><\/pre>\n
\u9a8c\u8bc1<\/h3>\n
\"\"<\/p>\n
\"\"<\/p>\n
\u601d\u8003<\/h3>\n
\u4e3a\u89e3\u51b3lvs\u5355\u70b9\u6545\u969c\u95ee\u9898\uff0c\u5f15\u5165\u4e86keepalived\uff0c\u4f46\u662fkeepalived\u4e5f\u662f\u4e0d\u53ef\u9760\u7684\u3002
\n\u5f15\u5165zookeeper\u96c6\u7fa4\u6765\u76d1\u63a7keepalived\u3002
\nzookeeper\u88ab\u8ba4\u4e3a\u662f\u53ef\u9760\u7684\uff08\u6ca1\u6709\u7edd\u5bf9\u7684\u53ef\u9760\uff0czookeeper\u9700\u8981\u8fc7\u534a\u5b58\u6d3b\uff09
\nZAB\u534f\u8bae
\nPAXOS\u4e00\u81f4\u6027\u7b97\u6cd5<\/p>\n","protected":false},"excerpt":{"rendered":"
\u73b0\u6709\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6848 HA high avaliable \u9ad8\u53ef\u7528 \u95ee\u9898\uff1a 1\u3001lvs\u5355\u70b9\u6545\u969c\u95ee\u9898 2\u3001RS\u6302\u4e86\uff0c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[15],"tags":[390],"class_list":["post-2220","post","type-post","status-publish","format-standard","hentry","category-15","tag-390"],"_links":{"self":[{"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/2220","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2220"}],"version-history":[{"count":9,"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/2220\/revisions"}],"predecessor-version":[{"id":3244,"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/2220\/revisions\/3244"}],"wp:attachment":[{"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}