{"id":5143,"date":"2022-03-03T14:36:26","date_gmt":"2022-03-03T06:36:26","guid":{"rendered":"http:\/\/39.97.231.10\/?p=5143"},"modified":"2022-03-18T23:15:23","modified_gmt":"2022-03-18T15:15:23","slug":"etcd%e5%85%a5%e9%97%a8%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"http:\/\/www.weijing.co\/?p=5143","title":{"rendered":"ETCD\u5165\u95e8\u4ecb\u7ecd"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"5143\" class=\"elementor elementor-5143\" data-elementor-settings=\"[]\">\n\t\t\t\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t<div data-uael-partstyle=\"nasa\" data-uael-partcolor=\"\" data-uael-partopacity=\"\" data-uael-partdirection=\"bottom\" class=\"elementor-section elementor-top-section elementor-element elementor-element-4a9db53f uael-particle-yes elementor-section-boxed elementor-section-height-default elementor-section-height-default uael-particle-adv-no\" data-id=\"4a9db53f\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-69c3320a\" data-id=\"69c3320a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-14e0b4ca elementor-widget elementor-widget-heading\" data-id=\"14e0b4ca\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">ETCD\u5165\u95e8<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7a41ad78 elementor-widget elementor-widget-text-editor\" data-id=\"7a41ad78\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7010255b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7010255b\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-218c630e\" data-id=\"218c630e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4398b3ed elementor-widget elementor-widget-heading\" data-id=\"4398b3ed\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u6570\u636e\u8fc1\u79fb<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3d982970 elementor-widget elementor-widget-text-editor\" data-id=\"3d982970\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h3><strong>\u4e00\u3001etcd\u4ecb\u7ecd\uff1a<\/strong><\/h3><p>ETCD \u662f\u4e00\u4e2a\u9ad8\u53ef\u7528\u7684\u5206\u5e03\u5f0f\u952e\u503c\u6570\u636e\u5e93\uff0c\u53ef\u7528\u4e8e\u670d\u52a1\u53d1\u73b0\u3002ETCD \u91c7\u7528 raft \u4e00\u81f4\u6027\u7b97\u6cd5\uff0c\u57fa\u4e8e Go \u8bed\u8a00\u5b9e\u73b0\u3002etcd\u4f5c\u4e3a\u4e00\u4e2a\u9ad8\u53ef\u7528\u952e\u503c\u5b58\u50a8\u7cfb\u7edf\uff0c\u5929\u751f\u5c31\u662f\u4e3a\u96c6\u7fa4\u5316\u800c\u8bbe\u8ba1\u7684\u3002\u7531\u4e8eRaft\u7b97\u6cd5\u5728\u505a\u51b3\u7b56\u65f6\u9700\u8981\u591a\u6570\u8282\u70b9\u7684\u6295\u7968\uff0c\u6240\u4ee5etcd\u4e00\u822c\u90e8\u7f72\u96c6\u7fa4\u63a8\u8350\u5947\u6570\u4e2a\u8282\u70b9\uff0c\u63a8\u8350\u7684\u6570\u91cf\u4e3a3\u30015\u6216\u80057\u4e2a\u8282\u70b9\u6784\u6210\u4e00\u4e2a\u96c6\u7fa4\u3002<\/p><h3>\u00a0<\/h3><h3><strong>\u4e8c\u3001\u7279\u70b9<\/strong>\uff1a<\/h3><p>\u5b9e\u9645\u4e0a\uff0cetcd\u4f5c\u4e3a\u4e00\u4e2a\u53d7\u5230Zookeeper\u4e0edoozer\u542f\u53d1\u800c\u50ac\u751f\u7684\u9879\u76ee\uff0c\u9664\u4e86\u62e5\u6709\u4e0e\u4e4b\u7c7b\u4f3c\u7684\u529f\u80fd\u5916\uff0c\u66f4\u5177\u6709\u4ee5\u4e0b4\u4e2a\u7279\u70b9{![\u5f15\u81ea<a href=\"http:\/\/lib.csdn.net\/base\/4\">Docker<\/a>\u5b98\u65b9\u6587\u6863]}\u3002<\/p><ul><li>\u7b80\u5355\uff1a\u57fa\u4e8eHTTP+JSON\u7684API\u8ba9\u4f60\u7528curl\u547d\u4ee4\u5c31\u53ef\u4ee5\u8f7b\u677e\u4f7f\u7528\u3002<\/li><li>\u5b89\u5168\uff1a\u53ef\u9009SSL\u5ba2\u6237\u8ba4\u8bc1\u673a\u5236\u3002<\/li><li>\u5feb\u901f\uff1a\u6bcf\u4e2a\u5b9e\u4f8b\u6bcf\u79d2\u652f\u6301\u4e00\u5343\u6b21\u5199\u64cd\u4f5c\u3002<\/li><li>\u53ef\u4fe1\uff1a\u4f7f\u7528Raft\u7b97\u6cd5\u5145\u5206\u5b9e\u73b0\u4e86\u5206\u5e03\u5f0f\u3002<\/li><\/ul><p><img loading=\"lazy\" src=\"https:\/\/img-blog.csdnimg.cn\/img_convert\/cca6efd6ecdd9575ef57e15bffd6415c.png\" alt=\"\" width=\"300\" height=\"224\" \/><\/p><h3>\u4e09\u3001etcd\u5173\u952e\u8bcd\u6c47\uff1a<\/h3><ul><li>Raft\uff1aetcd\u6240\u91c7\u7528\u7684\u4fdd\u8bc1\u5206\u5e03\u5f0f\u7cfb\u7edf\u5f3a\u4e00\u81f4\u6027\u7684\u7b97\u6cd5\u3002<\/li><li>Node\uff1a\u4e00\u4e2aRaft\u72b6\u6001\u673a\u5b9e\u4f8b\u3002<\/li><li>Member\uff1a \u4e00\u4e2aetcd\u5b9e\u4f8b\u3002\u5b83\u7ba1\u7406\u7740\u4e00\u4e2aNode\uff0c\u5e76\u4e14\u53ef\u4ee5\u4e3a\u5ba2\u6237\u7aef\u8bf7\u6c42\u63d0\u4f9b\u670d\u52a1\u3002<\/li><li>Cluster\uff1a\u7531\u591a\u4e2aMember\u6784\u6210\u53ef\u4ee5\u534f\u540c\u5de5\u4f5c\u7684etcd\u96c6\u7fa4\u3002<\/li><li>Peer\uff1a\u5bf9\u540c\u4e00\u4e2aetcd\u96c6\u7fa4\u4e2d\u53e6\u5916\u4e00\u4e2aMember\u7684\u79f0\u547c\u3002<\/li><li>Client\uff1a \u5411etcd\u96c6\u7fa4\u53d1\u9001HTTP\u8bf7\u6c42\u7684\u5ba2\u6237\u7aef\u3002<\/li><li>WAL\uff1a\u9884\u5199\u5f0f\u65e5\u5fd7\uff0cetcd\u7528\u4e8e\u6301\u4e45\u5316\u5b58\u50a8\u7684\u65e5\u5fd7\u683c\u5f0f\u3002<\/li><li>snapshot\uff1aetcd\u9632\u6b62WAL\u6587\u4ef6\u8fc7\u591a\u800c\u8bbe\u7f6e\u7684\u5feb\u7167\uff0c\u5b58\u50a8etcd\u6570\u636e\u72b6\u6001\u3002<\/li><li>Proxy\uff1aetcd\u7684\u4e00\u79cd\u6a21\u5f0f\uff0c\u4e3aetcd\u96c6\u7fa4\u63d0\u4f9b\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u3002<\/li><li>Leader\uff1aRaft\u7b97\u6cd5\u4e2d\u901a\u8fc7\u7ade\u9009\u800c\u4ea7\u751f\u7684\u5904\u7406\u6240\u6709\u6570\u636e\u63d0\u4ea4\u7684\u8282\u70b9\u3002<\/li><li>Follower\uff1a\u7ade\u9009\u5931\u8d25\u7684\u8282\u70b9\u4f5c\u4e3aRaft\u4e2d\u7684\u4ece\u5c5e\u8282\u70b9\uff0c\u4e3a\u7b97\u6cd5\u63d0\u4f9b\u5f3a\u4e00\u81f4\u6027\u4fdd\u8bc1\u3002<\/li><li>Candidate\uff1a\u5f53Follower\u8d85\u8fc7\u4e00\u5b9a\u65f6\u95f4\u63a5\u6536\u4e0d\u5230Leader\u7684\u5fc3\u8df3\u65f6\u8f6c\u53d8\u4e3aCandidate\u5f00\u59cbLeader\u7ade\u9009\u3002<\/li><li>Term\uff1a\u67d0\u4e2a\u8282\u70b9\u6210\u4e3aLeader\u5230\u4e0b\u4e00\u6b21\u7ade\u9009\u5f00\u59cb\u7684\u65f6\u95f4\u5468\u671f\uff0c\u79f0\u4e3a\u4e00\u4e2aTerm\u3002<\/li><li>Index\uff1a\u6570\u636e\u9879\u7f16\u53f7\u3002Raft\u4e2d\u901a\u8fc7Term\u548cIndex\u6765\u5b9a\u4f4d\u6570\u636e\u3002<\/li><\/ul><h3>\u56db\u3001etcd\u5e94\u7528\u573a\u666f\uff1a<\/h3><p>1\u3001\u670d\u52a1\u53d1\u73b0\uff1a<\/p><p>\u670d\u52a1\u53d1\u73b0\uff08Service Discovery\uff09\u8981\u89e3\u51b3\u7684\u662f\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u6700\u5e38\u89c1\u7684\u95ee\u9898\u4e4b\u4e00\uff0c\u5373\u5728\u540c\u4e00\u4e2a\u5206\u5e03\u5f0f\u96c6\u7fa4\u4e2d\u7684\u8fdb\u7a0b\u6216\u670d\u52a1\u5982\u4f55\u624d\u80fd\u627e\u5230\u5bf9\u65b9\u5e76\u5efa\u7acb\u8fde\u63a5\u3002\u4ece\u672c\u8d28\u4e0a\u8bf4\uff0c\u670d\u52a1\u53d1\u73b0\u5c31\u662f\u60f3\u8981\u4e86\u89e3\u96c6\u7fa4\u4e2d\u662f\u5426\u6709\u8fdb\u7a0b\u5728\u76d1\u542cudp\u6216tcp\u7aef\u53e3\uff0c\u5e76\u4e14\u901a\u8fc7\u540d\u5b57\u5c31\u53ef\u4ee5\u8fdb\u884c\u67e5\u627e\u548c\u8fde\u63a5\u3002<\/p><p>2\u3001\u6d88\u606f\u53d1\u5e03\u4e0e\u8ba2\u9605\uff1a<\/p><p>\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u6700\u4e3a\u9002\u7528\u7684\u7ec4\u4ef6\u95f4\u901a\u4fe1\u65b9\u5f0f\u662f\u6d88\u606f\u53d1\u5e03\u4e0e\u8ba2\u9605\u673a\u5236\u3002\u5177\u4f53\u800c\u8a00\uff0c\u5373\u6784\u5efa\u4e00\u4e2a\u914d\u7f6e\u5171\u4eab\u4e2d\u5fc3\uff0c\u6570\u636e\u63d0\u4f9b\u8005\u5728\u8fd9\u4e2a\u914d\u7f6e\u4e2d\u5fc3\u53d1\u5e03\u6d88\u606f\uff0c\u800c\u6d88\u606f\u4f7f\u7528\u8005\u5219\u8ba2\u9605\u4ed6\u4eec\u5173\u5fc3\u7684\u4e3b\u9898\uff0c\u4e00\u65e6\u76f8\u5173\u4e3b\u9898\u6709\u6d88\u606f\u53d1\u5e03\uff0c\u5c31\u4f1a\u5b9e\u65f6\u901a\u77e5\u8ba2\u9605\u8005\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u5b9e\u73b0\u5206\u5e03\u5f0f\u7cfb\u7edf\u914d\u7f6e\u7684\u96c6\u4e2d\u5f0f\u7ba1\u7406\u4e0e\u5b9e\u65f6\u52a8\u6001\u66f4\u65b0<\/p><ul><li>\u5e94\u7528\u4e2d\u7528\u5230\u7684\u4e00\u4e9b\u914d\u7f6e\u4fe1\u606f\u5b58\u653e\u5728etcd\u4e0a\u8fdb\u884c\u96c6\u4e2d\u7ba1\u7406\u3002\u8fd9\u7c7b\u573a\u666f\u7684\u4f7f\u7528\u65b9\u5f0f\u901a\u5e38\u662f\u8fd9\u6837\u7684\uff1a\u5e94\u7528\u5728\u542f\u52a8\u7684\u65f6\u5019\u4e3b\u52a8\u4eceetcd\u83b7\u53d6\u4e00\u6b21\u914d\u7f6e\u4fe1\u606f\uff0c\u540c\u65f6\uff0c\u5728etcd\u8282\u70b9\u4e0a\u6ce8\u518c\u4e00\u4e2aWatcher\u5e76\u7b49\u5f85\uff0c\u4ee5\u540e\u6bcf\u6b21\u914d\u7f6e\u6709\u66f4\u65b0\u7684\u65f6\u5019\uff0cetcd\u90fd\u4f1a\u5b9e\u65f6\u901a\u77e5\u8ba2\u9605\u8005\uff0c\u4ee5\u6b64\u8fbe\u5230\u83b7\u53d6\u6700\u65b0\u914d\u7f6e\u4fe1\u606f\u7684\u76ee\u7684\u3002<\/li><li>\u5206\u5e03\u5f0f\u641c\u7d22\u670d\u52a1\u4e2d\uff0c\u7d22\u5f15\u7684\u5143\u4fe1\u606f\u548c\u670d\u52a1\u5668\u96c6\u7fa4\u673a\u5668\u7684\u8282\u70b9\u72b6\u6001\u4fe1\u606f\u5b58\u653e\u5728etcd\u4e2d\uff0c\u4f9b\u5404\u4e2a\u5ba2\u6237\u7aef\u8ba2\u9605\u4f7f\u7528\u3002\u4f7f\u7528etcd\u7684<code>key TTL<\/code>\u529f\u80fd\u53ef\u4ee5\u786e\u4fdd\u673a\u5668\u72b6\u6001\u662f\u5b9e\u65f6\u66f4\u65b0\u7684\u3002<\/li><li>\u5206\u5e03\u5f0f\u65e5\u5fd7\u6536\u96c6\u7cfb\u7edf\u3002\u8fd9\u4e2a\u7cfb\u7edf\u7684\u6838\u5fc3\u5de5\u4f5c\u662f\u6536\u96c6\u5206\u5e03\u5728\u4e0d\u540c\u673a\u5668\u4e0a\u7684\u65e5\u5fd7\u3002\u6536\u96c6\u5668\u901a\u5e38\u6309\u7167\u5e94\u7528\uff08\u6216\u4e3b\u9898\uff09\u6765\u5206\u914d\u6536\u96c6\u4efb\u52a1\u5355\u5143\uff0c\u56e0\u6b64\u53ef\u4ee5\u5728etcd\u4e0a\u521b\u5efa\u4e00\u4e2a\u4ee5\u5e94\u7528\uff08\u6216\u4e3b\u9898\uff09\u547d\u540d\u7684\u76ee\u5f55P\uff0c\u5e76\u5c06\u8fd9\u4e2a\u5e94\u7528\uff08\u6216\u4e3b\u9898\uff09\u76f8\u5173\u7684\u6240\u6709\u673a\u5668ip\uff0c\u4ee5\u5b50\u76ee\u5f55\u7684\u5f62\u5f0f\u5b58\u50a8\u5728\u76ee\u5f55P\u4e0b\uff0c\u7136\u540e\u8bbe\u7f6e\u4e00\u4e2a\u9012\u5f52\u7684etcd Watcher\uff0c\u9012\u5f52\u5f0f\u5730\u76d1\u63a7\u5e94\u7528\uff08\u6216\u4e3b\u9898\uff09\u76ee\u5f55\u4e0b\u6240\u6709\u4fe1\u606f\u7684\u53d8\u52a8\u3002\u8fd9\u6837\u5c31\u5b9e\u73b0\u4e86\u5728\u673a\u5668IP\uff08\u6d88\u606f\uff09\u53d1\u751f\u53d8\u52a8\u65f6\uff0c\u80fd\u591f\u5b9e\u65f6\u901a\u77e5\u6536\u96c6\u5668\u8c03\u6574\u4efb\u52a1\u5206\u914d\u3002<\/li><li>\u7cfb\u7edf\u4e2d\u4fe1\u606f\u9700\u8981\u52a8\u6001\u81ea\u52a8\u83b7\u53d6\u4e0e\u4eba\u5de5\u5e72\u9884\u4fee\u6539\u4fe1\u606f\u8bf7\u6c42\u5185\u5bb9\u7684\u60c5\u51b5\u3002\u901a\u5e38\u7684\u89e3\u51b3\u65b9\u6848\u662f\u5bf9\u5916\u66b4\u9732\u63a5\u53e3\uff0c\u4f8b\u5982JMX\u63a5\u53e3\uff0c\u6765\u83b7\u53d6\u4e00\u4e9b\u8fd0\u884c\u65f6\u7684\u4fe1\u606f\u6216\u63d0\u4ea4\u4fee\u6539\u7684\u8bf7\u6c42\u3002\u800c\u5f15\u5165etcd\u4e4b\u540e\uff0c\u53ea\u9700\u8981\u5c06\u8fd9\u4e9b\u4fe1\u606f\u5b58\u653e\u5230\u6307\u5b9a\u7684etcd\u76ee\u5f55\u4e2d\uff0c\u5373\u53ef\u901a\u8fc7HTTP\u63a5\u53e3\u76f4\u63a5\u88ab\u5916\u90e8\u8bbf\u95ee\u3002<\/li><\/ul><p>3\u3001\u8d1f\u8f7d\u5747\u8861\uff1a<\/p><p>\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u670d\u52a1\u7684\u9ad8\u53ef\u7528\u4ee5\u53ca\u6570\u636e\u7684\u4e00\u81f4\u6027\uff0c\u901a\u5e38\u90fd\u4f1a\u628a\u6570\u636e\u548c\u670d\u52a1\u90e8\u7f72\u591a\u4efd\uff0c\u4ee5\u6b64\u8fbe\u5230\u5bf9\u7b49\u670d\u52a1\uff0c\u5373\u4f7f\u5176\u4e2d\u7684\u67d0\u4e00\u4e2a\u670d\u52a1\u5931\u6548\u4e86\uff0c\u4e5f\u4e0d\u5f71\u54cd\u4f7f\u7528\u3002\u8fd9\u6837\u7684\u5b9e\u73b0\u867d\u7136\u4f1a\u5bfc\u81f4\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u6570\u636e\u5199\u5165\u6027\u80fd\u7684\u4e0b\u964d\uff0c\u4f46\u662f\u5374\u80fd\u5b9e\u73b0\u6570\u636e\u8bbf\u95ee\u65f6\u7684\u8d1f\u8f7d\u5747\u8861\u3002\u56e0\u4e3a\u6bcf\u4e2a\u5bf9\u7b49\u670d\u52a1\u8282\u70b9\u4e0a\u90fd\u5b58\u6709\u5b8c\u6574\u7684\u6570\u636e\uff0c\u6240\u4ee5\u7528\u6237\u7684\u8bbf\u95ee\u6d41\u91cf\u5c31\u53ef\u4ee5\u5206\u6d41\u5230\u4e0d\u540c\u7684\u673a\u5668\u4e0a\u3002<\/p><ul><li>etcd\u672c\u8eab\u5206\u5e03\u5f0f\u67b6\u6784\u5b58\u50a8\u7684\u4fe1\u606f\u8bbf\u95ee\u652f\u6301\u8d1f\u8f7d\u5747\u8861\u3002etcd\u96c6\u7fa4\u5316\u4ee5\u540e\uff0c\u6bcf\u4e2aetcd\u7684\u6838\u5fc3\u8282\u70b9\u90fd\u53ef\u4ee5\u5904\u7406\u7528\u6237\u7684\u8bf7\u6c42\u3002\u6240\u4ee5\uff0c\u628a\u6570\u636e\u91cf\u5c0f\u4f46\u662f\u8bbf\u95ee\u9891\u7e41\u7684\u6d88\u606f\u6570\u636e\u76f4\u63a5\u5b58\u50a8\u5230etcd\u4e2d\u4e5f\u662f\u4e2a\u4e0d\u9519\u7684\u9009\u62e9\uff0c\u5982\u4e1a\u52a1\u7cfb\u7edf\u4e2d\u5e38\u7528\u7684\u4e8c\u7ea7\u4ee3\u7801\u8868\u3002\u4e8c\u7ea7\u4ee3\u7801\u8868\u7684\u5de5\u4f5c\u8fc7\u7a0b\u4e00\u822c\u662f\u8fd9\u6837\uff0c\u5728\u8868\u4e2d\u5b58\u50a8\u4ee3\u7801\uff0c\u5728etcd\u4e2d\u5b58\u50a8\u4ee3\u7801\u6240\u4ee3\u8868\u7684\u5177\u4f53\u542b\u4e49\uff0c\u4e1a\u52a1\u7cfb\u7edf\u8c03\u7528\u67e5\u8868\u7684\u8fc7\u7a0b\uff0c\u5c31\u9700\u8981\u67e5\u627e\u8868\u4e2d\u4ee3\u7801\u7684\u542b\u4e49\u3002\u6240\u4ee5\u5982\u679c\u628a\u4e8c\u7ea7\u4ee3\u7801\u8868\u4e2d\u7684\u5c0f\u91cf\u6570\u636e\u5b58\u50a8\u5230etcd\u4e2d\uff0c\u4e0d\u4ec5\u65b9\u4fbf\u4fee\u6539\uff0c\u4e5f\u6613\u4e8e\u5927\u91cf\u8bbf\u95ee\u3002<\/li><li>\u5229\u7528etcd\u7ef4\u62a4\u4e00\u4e2a\u8d1f\u8f7d\u5747\u8861\u8282\u70b9\u8868\u3002etcd\u53ef\u4ee5\u76d1\u63a7\u4e00\u4e2a\u96c6\u7fa4\u4e2d\u591a\u4e2a\u8282\u70b9\u7684\u72b6\u6001\uff0c\u5f53\u6709\u4e00\u4e2a\u8bf7\u6c42\u53d1\u8fc7\u6765\u540e\uff0c\u53ef\u4ee5\u8f6e\u8be2\u5f0f\u5730\u628a\u8bf7\u6c42\u8f6c\u53d1\u7ed9\u5b58\u6d3b\u7740\u7684\u591a\u4e2a\u8282\u70b9\u3002\u7c7b\u4f3cKafkaMQ\uff0c\u901a\u8fc7Zookeeper\u6765\u7ef4\u62a4\u751f\u4ea7\u8005\u548c\u6d88\u8d39\u8005\u7684\u8d1f\u8f7d\u5747\u8861\u3002\u540c\u6837\u4e5f\u53ef\u4ee5\u7528etcd\u6765\u505aZookeeper\u7684\u5de5\u4f5c\u3002<\/li><\/ul><p>4\u3001\u5206\u5e03\u5f0f\u901a\u77e5\u4e0e\u534f\u8c03\uff1a<\/p><p>\u8fd9\u91cc\u8ba8\u8bba\u7684\u5206\u5e03\u5f0f\u901a\u77e5\u4e0e\u534f\u8c03\uff0c\u4e0e\u6d88\u606f\u53d1\u5e03\u548c\u8ba2\u9605\u6709\u4e9b\u76f8\u4f3c\u3002\u4e24\u8005\u90fd\u4f7f\u7528\u4e86etcd\u4e2d\u7684Watcher\u673a\u5236\uff0c\u901a\u8fc7\u6ce8\u518c\u4e0e\u5f02\u6b65\u901a\u77e5\u673a\u5236\uff0c\u5b9e\u73b0\u5206\u5e03\u5f0f\u73af\u5883\u4e0b\u4e0d\u540c\u7cfb\u7edf\u4e4b\u95f4\u7684\u901a\u77e5\u4e0e\u534f\u8c03\uff0c\u4ece\u800c\u5bf9\u6570\u636e\u53d8\u66f4\u8fdb\u884c\u5b9e\u65f6\u5904\u7406\u3002\u5b9e\u73b0\u65b9\u5f0f\u901a\u5e38\u4e3a\uff1a\u4e0d\u540c\u7cfb\u7edf\u90fd\u5728etcd\u4e0a\u5bf9\u540c\u4e00\u4e2a\u76ee\u5f55\u8fdb\u884c\u6ce8\u518c\uff0c\u540c\u65f6\u8bbe\u7f6eWatcher\u76d1\u63a7\u8be5\u76ee\u5f55\u7684\u53d8\u5316\uff08\u5982\u679c\u5bf9\u5b50\u76ee\u5f55\u7684\u53d8\u5316\u4e5f\u6709\u9700\u8981\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u6210\u9012\u5f52\u6a21\u5f0f\uff09\uff0c\u5f53\u67d0\u4e2a\u7cfb\u7edf\u66f4\u65b0\u4e86etcd\u7684\u76ee\u5f55\uff0c\u90a3\u4e48\u8bbe\u7f6e\u4e86Watcher\u7684\u7cfb\u7edf\u5c31\u4f1a\u6536\u5230\u901a\u77e5\uff0c\u5e76\u4f5c\u51fa\u76f8\u5e94\u5904\u7406\u3002<\/p><ul><li>\u901a\u8fc7etcd\u8fdb\u884c\u4f4e\u8026\u5408\u7684\u5fc3\u8df3\u68c0\u6d4b\u3002\u68c0\u6d4b\u7cfb\u7edf\u548c\u88ab\u68c0\u6d4b\u7cfb\u7edf\u901a\u8fc7etcd\u4e0a\u67d0\u4e2a\u76ee\u5f55\u5173\u8054\u800c\u975e\u76f4\u63a5\u5173\u8054\u8d77\u6765\uff0c\u8fd9\u6837\u53ef\u4ee5\u5927\u5927\u51cf\u5c11\u7cfb\u7edf\u7684\u8026\u5408\u6027\u3002<\/li><li>\u901a\u8fc7etcd\u5b8c\u6210\u7cfb\u7edf\u8c03\u5ea6\u3002\u67d0\u7cfb\u7edf\u6709\u63a7\u5236\u53f0\u548c\u63a8\u9001\u7cfb\u7edf\u4e24\u90e8\u5206\u7ec4\u6210\uff0c\u63a7\u5236\u53f0\u7684\u804c\u8d23\u662f\u63a7\u5236\u63a8\u9001\u7cfb\u7edf\u8fdb\u884c\u76f8\u5e94\u7684\u63a8\u9001\u5de5\u4f5c\u3002\u7ba1\u7406\u4eba\u5458\u5728\u63a7\u5236\u53f0\u505a\u7684\u4e00\u4e9b\u64cd\u4f5c\uff0c\u5b9e\u9645\u4e0a\u53ea\u9700\u8981\u4fee\u6539etcd\u4e0a\u67d0\u4e9b\u76ee\u5f55\u8282\u70b9\u7684\u72b6\u6001\uff0c\u800cetcd\u5c31\u4f1a\u81ea\u52a8\u628a\u8fd9\u4e9b\u53d8\u5316\u901a\u77e5\u7ed9\u6ce8\u518c\u4e86Watcher\u7684\u63a8\u9001\u7cfb\u7edf\u5ba2\u6237\u7aef\uff0c\u63a8\u9001\u7cfb\u7edf\u518d\u505a\u51fa\u76f8\u5e94\u7684\u63a8\u9001\u4efb\u52a1\u3002<\/li><li>\u901a\u8fc7etcd\u5b8c\u6210\u5de5\u4f5c\u6c47\u62a5\u3002\u5927\u90e8\u5206\u7c7b\u4f3c\u7684\u4efb\u52a1\u5206\u53d1\u7cfb\u7edf\uff0c\u5b50\u4efb\u52a1\u542f\u52a8\u540e\uff0c\u5230etcd\u6765\u6ce8\u518c\u4e00\u4e2a\u4e34\u65f6\u5de5\u4f5c\u76ee\u5f55\uff0c\u5e76\u4e14\u5b9a\u65f6\u5c06\u81ea\u5df1\u7684\u8fdb\u5ea6\u8fdb\u884c\u6c47\u62a5\uff08\u5c06\u8fdb\u5ea6\u5199\u5165\u5230\u8fd9\u4e2a\u4e34\u65f6\u76ee\u5f55\uff09\uff0c\u8fd9\u6837\u4efb\u52a1\u7ba1\u7406\u8005\u5c31\u80fd\u591f\u5b9e\u65f6\u77e5\u9053\u4efb\u52a1\u8fdb\u5ea6\u3002<\/li><\/ul><p>5\u3001\u5206\u5e03\u5f0f\u9501:<\/p><p>\u56e0\u4e3aetcd\u4f7f\u7528Raft\u7b97\u6cd5\u4fdd\u6301\u4e86\u6570\u636e\u7684\u5f3a\u4e00\u81f4\u6027\uff0c\u67d0\u6b21\u64cd\u4f5c\u5b58\u50a8\u5230\u96c6\u7fa4\u4e2d\u7684\u503c\u5fc5\u7136\u662f\u5168\u5c40\u4e00\u81f4\u7684\uff0c\u6240\u4ee5\u5f88\u5bb9\u6613\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u3002\u9501\u670d\u52a1\u6709\u4e24\u79cd\u4f7f\u7528\u65b9\u5f0f\uff0c\u4e00\u662f\u4fdd\u6301\u72ec\u5360\uff0c\u4e8c\u662f\u63a7\u5236\u65f6\u5e8f\u3002<\/p><ul><li>\u4fdd\u6301\u72ec\u5360\uff0c\u5373\u6240\u6709\u8bd5\u56fe\u83b7\u53d6\u9501\u7684\u7528\u6237\u6700\u7ec8\u53ea\u6709\u4e00\u4e2a\u53ef\u4ee5\u5f97\u5230\u3002etcd\u4e3a\u6b64\u63d0\u4f9b\u4e86\u4e00\u5957\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u539f\u5b50\u64cd\u4f5cCAS\uff08<code>CompareAndSwap<\/code>\uff09\u7684API\u3002\u901a\u8fc7\u8bbe\u7f6e<code>prevExist<\/code>\u503c\uff0c\u53ef\u4ee5\u4fdd\u8bc1\u5728\u591a\u4e2a\u8282\u70b9\u540c\u65f6\u521b\u5efa\u67d0\u4e2a\u76ee\u5f55\u65f6\uff0c\u53ea\u6709\u4e00\u4e2a\u6210\u529f\uff0c\u800c\u8be5\u7528\u6237\u5373\u53ef\u8ba4\u4e3a\u662f\u83b7\u5f97\u4e86\u9501\u3002<\/li><li>\u63a7\u5236\u65f6\u5e8f\uff0c\u5373\u6240\u6709\u8bd5\u56fe\u83b7\u53d6\u9501\u7684\u7528\u6237\u90fd\u4f1a\u8fdb\u5165\u7b49\u5f85\u961f\u5217\uff0c\u83b7\u5f97\u9501\u7684\u987a\u5e8f\u662f\u5168\u5c40\u552f\u4e00\u7684\uff0c\u540c\u65f6\u51b3\u5b9a\u4e86\u961f\u5217\u6267\u884c\u987a\u5e8f\u3002etcd\u4e3a\u6b64\u4e5f\u63d0\u4f9b\u4e86\u4e00\u5957API\uff08\u81ea\u52a8\u521b\u5efa\u6709\u5e8f\u952e\uff09\uff0c\u5bf9\u4e00\u4e2a\u76ee\u5f55\u5efa\u503c\u65f6\u6307\u5b9a\u4e3a<code>POST<\/code>\u52a8\u4f5c\uff0c\u8fd9\u6837etcd\u4f1a\u81ea\u52a8\u5728\u76ee\u5f55\u4e0b\u751f\u6210\u4e00\u4e2a\u5f53\u524d\u6700\u5927\u7684\u503c\u4e3a\u952e\uff0c\u5b58\u50a8\u8fd9\u4e2a\u65b0\u7684\u503c\uff08\u5ba2\u6237\u7aef\u7f16\u53f7\uff09\u3002\u540c\u65f6\u8fd8\u53ef\u4ee5\u4f7f\u7528API\u6309\u987a\u5e8f\u5217\u51fa\u6240\u6709\u5f53\u524d\u76ee\u5f55\u4e0b\u7684\u952e\u503c\u3002\u6b64\u65f6\u8fd9\u4e9b\u952e\u7684\u503c\u5c31\u662f\u5ba2\u6237\u7aef\u7684\u65f6\u5e8f\uff0c\u800c\u8fd9\u4e9b\u952e\u4e2d\u5b58\u50a8\u7684\u503c\u53ef\u4ee5\u662f\u4ee3\u8868\u5ba2\u6237\u7aef\u7684\u7f16\u53f7\u3002<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>ETCD\u5165\u95e8 \u6570\u636e\u8fc1\u79fb \u4e00\u3001etcd\u4ecb\u7ecd\uff1a ETCD \u662f\u4e00\u4e2a\u9ad8\u53ef\u7528\u7684\u5206\u5e03\u5f0f\u952e\u503c\u6570\u636e\u5e93\uff0c\u53ef\u7528\u4e8e\u670d\u52a1\u53d1\u73b0\u3002ETCD &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"http:\/\/www.weijing.co\/?p=5143\"> <span class=\"screen-reader-text\">ETCD\u5165\u95e8\u4ecb\u7ecd<\/span> \u67e5\u770b\u5168\u6587 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\u6570\u636e\u8fc1\u79fb \u4e00\u3001etcd\u4ecb\u7ecd\uff1a ETCD 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