{"id":1719,"date":"2020-08-10T18:00:49","date_gmt":"2020-08-10T10:00:49","guid":{"rendered":"https:\/\/wyxxt.org.cn\/?p=1719"},"modified":"2023-12-04T15:45:39","modified_gmt":"2023-12-04T07:45:39","slug":"%e4%b8%80%e8%87%b4%e6%80%a7%e5%8d%8f%e8%ae%aeraft","status":"publish","type":"post","link":"https:\/\/wyxxt.org.cn\/?p=1719","title":{"rendered":"\u4e00\u81f4\u6027\u534f\u8baeRaft"},"content":{"rendered":"<h2>\u7b80\u4ecb<\/h2>\n<p>Raft \u4e5f\u662f\u4e00\u4e2a \u4e00\u81f4\u6027\u7b97\u6cd5\uff0c\u548c Paxos \u76ee\u6807\u76f8\u540c\u3002\u4f46\u5b83\u8fd8\u6709\u53e6\u4e00\u4e2a\u540d\u5b57 &#8211; \u6613\u4e8e\u7406\u89e3\u7684\u4e00\u81f4\u6027\u7b97\u6cd5\u3002Paxos \u548c Raft \u90fd\u662f\u4e3a\u4e86\u5b9e\u73b0 \u4e00\u81f4\u6027 \u4ea7\u751f\u7684\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u5982\u540c\u9009\u4e3e\u4e00\u6837\uff0c\u53c2\u9009\u8005 \u9700\u8981\u8bf4\u670d \u5927\u591a\u6570\u9009\u6c11 (\u670d\u52a1\u5668) \u6295\u7968\u7ed9\u4ed6\uff0c\u4e00\u65e6\u9009\u5b9a\u540e\u5c31\u8ddf\u968f\u5176\u64cd\u4f5c\u3002Paxos \u548c Raft \u7684\u533a\u522b\u5728\u4e8e\u9009\u4e3e\u7684 \u5177\u4f53\u8fc7\u7a0b \u4e0d\u540c\u3002<\/p>\n<h2>\u56f4\u68cb\u95ee\u9898<\/h2>\n<blockquote><p>\n  \u95ee\u9898: \u7532\u4e59\u4e24\u4eba\u8f6e\u6d41\u5728\u4e00\u5f20\u5706\u684c\u4e0a\u5e73\u653e\u9ed1\u767d\u56f4\u68cb\u5b50\uff0c\u6bcf\u6b21\u653e\u4e00\u5b50\uff0c\u68cb\u5b50\u4e0d\u8bb8\u91cd\u53e0\uff0c\u8c01\u5148\u6ca1\u6709\u5730\u65b9\u653e\u5c31\u8f93\u3002\u8bf7\u95ee\u600e\u6837\u653e\u624d\u80fd\u8d62\uff1f\n<\/p><\/blockquote>\n<p>\u8fd9\u4e2a\u95ee\u9898\u6709\u4e24\u5c42\u610f\u601d\uff0c\u7b2c\u4e00\uff0c\u6709\u6ca1\u6709\u4e00\u79cd\u653e\u6cd5\u4fdd\u8bc1\u5fc5\u8d62\uff1f\u7b2c\u4e8c\uff0c\u5982\u679c\u6709\u600e\u4e48\u8bc1\u660e\uff1f<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_ce170ea5cc460ed8f1d721a65a2a1076.jpg\" alt=\"\" \/><\/p>\n<p>\u4e0a\u56fe\u56de\u7b54\u4e86\u8fd9\u4e2a\u95ee\u9898\uff0c\u90a3\u5c31\u662f\u5148\u884c\u8005\u5fc5\u80dc\uff0c\u8fd9\u91cc\u4f7f\u7528\u4e86\u4e09\u79cd\u4e0d\u540c\u7684\u601d\u7ef4\u65b9\u5f0f\u6765\u9610\u8ff0:<\/p>\n<ol>\n<li>\u5047\u5982\u684c\u5b50\u53ea\u6709\u4e00\u4e2a\u56f4\u68cb\u5b50\u90a3\u4e48\u5927\u3002<\/p>\n<\/li>\n<li>\n<p>\u5047\u5982\u684c\u5b50\u65e0\u9650\u5927\uff0c\u5148\u884c\u8005\u5148\u5360\u4f4f\u5706\u5fc3\u3002\u7531\u4e8e\u5706\u662f\u5bf9\u79f0\u56fe\u5f62\uff0c\u6240\u4ee5\u53ea\u8981\u5bf9\u624b\u8fd8\u80fd\u627e\u5230\u4f4d\u7f6e\u653e\uff0c\u4f60\u603b\u80fd\u5728\u5bf9\u79f0\u7684\u53e6\u4e00\u9762\u627e\u5230\u4f4d\u7f6e\u653e\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e00\u4e2a\u5706\u4e2d\u53ef\u753b\u5355\u6570\u4e2a\u76f4\u5f84\u76f8\u7b49\u4e14\u4e92\u5207\u7684\u5c0f\u5706\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u4e09\u79cd\u4e0d\u540c\u7684\u601d\u7ef4\u65b9\u5f0f\u5728\u53ef\u7406\u89e3\u6027\u96be\u5ea6\u4e0a\u9010\u6e10\u52a0\u6df1\u3002<\/p>\n<ol>\n<li>\u7b2c\u4e00\u79cd\u662f <strong>\u6781\u7b80\u5316\u601d\u7ef4<\/strong>\uff0c\u4f46\u6570\u5b66\u4e0a\u662f \u4e0d\u4e25\u8c28 \u7684\u3002<\/p>\n<\/li>\n<li>\n<p>\u7b2c\u4e8c\u79cd\u662f <strong>\u6781\u9650\u601d\u7ef4<\/strong>\uff0c\u548c\u7b2c\u4e00\u79cd\u7ed3\u5408\u8d77\u6765\u5c31\u662f** \u6570\u5b66\u5f52\u7eb3\u6cd5<strong>\uff0c\u5728\u6570\u5b66\u4e0a\u662f<\/strong> \u4e25\u8c28** \u7684\u3002<\/p>\n<\/li>\n<li>\n<p>\u7b2c\u4e09\u79cd\u662f <strong>\u5f62\u8c61\u601d\u7ef4<\/strong>\uff0c\u4f7f\u7528\u4e86 \u51e0\u4f55\u5b66\u6982\u5ff5\uff0c\u4f46\u5bf9\u4e8e\u6ca1\u6709\u51e0\u4f55\u5b66\u57fa\u7840\u77e5\u8bc6\u7684\u4eba\u5c31\u5f88\u96be\u7406\u89e3\u4e86\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u4ec0\u4e48\u662fRaft\u534f\u8bae<\/h2>\n<p>Raft \u534f\u8bae\u5c06 Server \u8fdb\u7a0b\u5206\u6210\u4e09\u7c7b\uff0c\u5206\u522b\u662f Leader\uff0cCandidate\uff0cFollower\u3002\u4e00\u4e2a Server \u8fdb\u7a0b\u5728\u67d0\u4e00\u65f6\u523b\uff0c\u53ea\u80fd\u662f\u5176\u4e2d \u4e00\u79cd\u7c7b\u578b\uff0c\u4f46\u8fd9\u4e0d\u662f\u56fa\u5b9a\u7684\u3002\u4e0d\u540c\u7684\u65f6\u523b\uff0c\u5b83\u53ef\u80fd\u62e5\u6709\u4e0d\u540c\u7684\u7c7b\u578b\uff0c\u4e00\u4e2a Server \u8fdb\u7a0b\u7684\u7c7b\u578b\u662f\u5982\u4f55\u6539\u53d8\u7684\uff0c\u540e\u9762\u4f1a\u6709\u89e3\u91ca\u3002<\/p>\n<p>\u5728\u4e00\u4e2a\u7531 Raft \u534f\u8bae\u7ec4\u7ec7\u7684\u96c6\u7fa4\u4e2d\u6709\u4e09\u7c7b\u89d2\u8272\uff1a<\/p>\n<ul>\n<li>Leader\uff08\u9886\u8896\uff09<\/p>\n<\/li>\n<li>\n<p>Follower\uff08\u7fa4\u4f17\uff09<\/p>\n<\/li>\n<li>\n<p>Candidate\uff08\u5019\u9009\u4eba\uff09<\/p>\n<\/li>\n<\/ul>\n<p>\u5c31\u50cf\u4e00\u4e2a\u6c11\u4e3b\u793e\u4f1a\uff0c\u9886\u8896\u7531\u6c11\u4f17\u6295\u7968\u9009\u51fa\u3002\u521a\u5f00\u59cb\u6ca1\u6709 \u9886\u8896\uff0c\u6240\u6709\u96c6\u7fa4\u4e2d\u7684 \u53c2\u4e0e\u8005 \u90fd\u662f \u7fa4\u4f17\uff0c\u90a3\u4e48\u9996\u5148\u5f00\u542f\u4e00\u8f6e\u5927\u9009\u3002\u5728\u5927\u9009\u671f\u95f4 \u6240\u6709\u7fa4\u4f17 \u90fd\u80fd\u53c2\u4e0e\u7ade\u9009\uff0c\u8fd9\u65f6\u6240\u6709\u7fa4\u4f17\u7684\u89d2\u8272\u5c31\u53d8\u6210\u4e86 \u5019\u9009\u4eba\uff0c\u6c11\u4e3b\u6295\u7968\u9009\u51fa\u9886\u8896\u540e\u5c31\u5f00\u59cb\u4e86\u8fd9\u5c4a\u9886\u8896\u7684\u4efb\u671f\uff0c\u7136\u540e\u9009\u4e3e\u7ed3\u675f\uff0c\u6240\u6709\u9664 \u9886\u8896 \u7684 \u5019\u9009\u4eba \u53c8\u53d8\u56de \u7fa4\u4f17\u89d2\u8272 \u670d\u4ece\u9886\u8896\u9886\u5bfc\u3002<\/p>\n<p>\u8fd9\u91cc\u63d0\u5230\u4e00\u4e2a\u6982\u5ff5 <strong>\u300c\u4efb\u671f\u300d<\/strong>\uff0c\u7528\u672f\u8bed Term \u8868\u8fbe\u3002\u5173\u4e8e Raft \u534f\u8bae\u7684\u6838\u5fc3\u6982\u5ff5\u548c\u672f\u8bed\u5c31\u8fd9\u4e48\u591a\uff0c\u800c\u4e14\u548c\u73b0\u5b9e\u6c11\u4e3b\u5236\u5ea6\u975e\u5e38\u5339\u914d\uff0c\u6240\u4ee5\u5f88\u5bb9\u6613\u7406\u89e3\u3002<\/p>\n<p>\u4e09\u7c7b\u89d2\u8272\u7684\u53d8\u8fc1\u56fe\u5982\u4e0b\uff0c\u7ed3\u5408\u540e\u9762\u7684\u9009\u4e3e\u8fc7\u7a0b\u6765\u770b\u5f88\u5bb9\u6613\u7406\u89e3\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_a34682143139b4120753788717ae6885.jpg\" alt=\"\" \/><\/p>\n<h3>Leader\u9009\u4e3e\u8fc7\u7a0b<\/h3>\n<p>\u5728\u6781\u7b80\u7684\u601d\u7ef4\u4e0b\uff0c\u4e00\u4e2a\u6700\u5c0f\u7684 Raft \u6c11\u4e3b\u96c6\u7fa4\u9700\u8981 \u4e09\u4e2a\u53c2\u4e0e\u8005\uff08\u5982\u4e0b\u56fe\uff1aA\u3001B\u3001C\uff09\uff0c\u8fd9\u6837\u624d\u53ef\u80fd\u6295\u51fa\u591a\u6570\u7968\u3002<\/p>\n<p>\u521d\u59cb\u72b6\u6001 ABC \u90fd\u662f Follower\uff0c\u7136\u540e\u53d1\u8d77\u9009\u4e3e\u8fd9\u65f6\u6709 \u4e09\u79cd \u53ef\u80fd\u7684\u60c5\u5f62\u53d1\u751f\u3002\u4e0b\u56fe\u4e2d\u524d\u4e8c\u79cd\u90fd\u80fd\u9009\u51fa Leader\uff0c\u7b2c\u4e09\u79cd\u5219\u8868\u660e \u672c\u8f6e\u6295\u7968\u65e0\u6548\uff08Split Votes\uff09\u3002\u5bf9\u4e8e\u7b2c\u4e09\u79cd\uff0c\u6bcf\u65b9\u90fd\u6295\u7ed9\u4e86\u81ea\u5df1\uff0c\u7ed3\u679c\u6ca1\u6709\u4efb\u4f55\u4e00\u65b9\u83b7\u5f97\u591a\u6570\u7968\u3002\u4e4b\u540e \u6bcf\u4e2a\u53c2\u4e0e\u65b9 \u968f\u673a\u4f11\u606f\u4e00\u9635\uff08Election Timeout\uff09\u91cd\u65b0\u53d1\u8d77\u6295\u7968\u76f4\u5230\u4e00\u65b9\u83b7\u5f97\u591a\u6570\u7968\u3002\u8fd9\u91cc\u7684\u5173\u952e\u5c31\u662f\u968f\u673a timeout\uff0c\u6700\u5148\u4ece timeout \u4e2d\u6062\u590d\u53d1\u8d77\u6295\u7968\u7684\u4e00\u65b9\uff0c\u5411\u8fd8\u5728 timeout \u4e2d\u7684\u53e6\u5916\u4e24\u65b9 \u8bf7\u6c42\u6295\u7968\uff0c\u8fd9\u65f6\u5b83\u5c31\u53ea\u80fd\u6295\u7ed9\u81ea\u5df1\uff0c\u5bfc\u81f4\u5f88\u5feb\u8fbe\u6210\u4e00\u81f4\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_6252aaecf984752d3283181a13ab30d6.jpg\" alt=\"\" \/><\/p>\n<p>\u9009\u51fa Leader \u540e\uff0cLeader \u901a\u8fc7 \u5b9a\u671f \u5411\u6240\u6709 Follower \u53d1\u9001 \u5fc3\u8df3\u4fe1\u606f \u7ef4\u6301\u5176\u7edf\u6cbb\u3002\u82e5 Follower \u4e00\u6bb5\u65f6\u95f4\u672a\u6536\u5230 Leader \u7684 \u5fc3\u8df3\uff0c\u5219\u8ba4\u4e3a Leader \u53ef\u80fd\u5df2\u7ecf\u6302\u4e86\uff0c\u7136\u540e\u518d\u6b21\u53d1\u8d77 \u9009\u4e3e \u8fc7\u7a0b\u3002<\/p>\n<h3>Leader\u5bf9\u4e00\u81f4\u6027\u7684\u5f71\u54cd<\/h3>\n<p>Raft \u534f\u8bae \u5f3a\u4f9d\u8d56 Leader \u8282\u70b9\u7684 \u53ef\u7528\u6027\uff0c\u4ee5\u786e\u4fdd\u96c6\u7fa4 \u6570\u636e\u7684\u4e00\u81f4\u6027\u3002\u6570\u636e\u7684\u6d41\u5411 \u53ea\u80fd\u4ece Leader \u8282\u70b9\u5411 Follower \u8282\u70b9\u8f6c\u79fb\u3002\u5177\u4f53\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_c3d0fad4a05b6656f923f4d0e2ffe7d5.jpg\" alt=\"\" \/><\/p>\n<ol>\n<li>\u5f53 Client \u5411\u96c6\u7fa4 Leader \u8282\u70b9 \u63d0\u4ea4\u6570\u636e \u540e\uff0cLeader \u8282\u70b9 \u63a5\u6536\u5230\u7684\u6570\u636e \u5904\u4e8e \u672a\u63d0\u4ea4\u72b6\u6001\uff08Uncommitted\uff09\u3002<\/p>\n<\/li>\n<li>\n<p>\u63a5\u7740 Leader \u8282\u70b9\u4f1a \u5e76\u53d1\u5730 \u5411\u6240\u6709 Follower \u8282\u70b9 \u590d\u5236\u6570\u636e \u5e76 \u7b49\u5f85\u63a5\u6536\u54cd\u5e94\u3002<\/p>\n<\/li>\n<li>\n<p>\u96c6\u7fa4\u4e2d\u81f3\u5c11 \u8d85\u8fc7\u534a\u6570 \u7684\u8282\u70b9 \u5df2\u63a5\u6536 \u5230\u6570\u636e\u540e\uff0c Leader \u518d\u5411 Client \u786e\u8ba4\u6570\u636e \u5df2\u63a5\u6536\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e00\u65e6\u5411 Client \u53d1\u51fa\u6570\u636e\u63a5\u6536 Ack \u54cd\u5e94\u540e\uff0c\u8868\u660e\u6b64\u65f6 \u6570\u636e\u72b6\u6001 \u8fdb\u5165 \u5df2\u63d0\u4ea4\uff08Committed\uff09\uff0cLeader \u8282\u70b9\u518d\u5411 Follower \u8282\u70b9\u53d1\u901a\u77e5\u544a\u77e5\u8be5 \u6570\u636e\u72b6\u6001\u5df2\u63d0\u4ea4\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\uff0c\u4e3b\u8282\u70b9 \u53ef\u80fd\u5728 \u4efb\u610f\u9636\u6bb5 \u6302\u6389\uff0c\u770b\u4e0b Raft \u534f\u8bae\u5982\u4f55\u9488\u5bf9\u4e0d\u540c\u9636\u6bb5\u4fdd\u969c \u6570\u636e\u4e00\u81f4\u6027 \u7684\u3002<\/p>\n<h4>1. \u60c5\u5f621<\/h4>\n<blockquote><p>\n  \u6570\u636e\u5230\u8fbe Leader \u8282\u70b9\u524d\uff0c\u8fd9\u4e2a\u9636\u6bb5 Leader \u6302\u6389\u4e0d\u5f71\u54cd\u4e00\u81f4\u6027\uff0c\u4e0d\u7528\u591a\u8bf4\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_9b732062cf3384ce653f312534101bda.jpg\" alt=\"\" \/><\/p>\n<h4>2. \u60c5\u5f622<\/h4>\n<blockquote><p>\n  \u6570\u636e\u5230\u8fbe Leader \u8282\u70b9\uff0c\u4f46\u672a\u590d\u5236\u5230 Follower \u8282\u70b9\u3002\n<\/p><\/blockquote>\n<p>\u8fd9\u4e2a\u9636\u6bb5 Leader \u6302\u6389\uff0c\u6570\u636e\u5c5e\u4e8e \u672a\u63d0\u4ea4\u72b6\u6001\uff0cClient \u4e0d\u4f1a\u6536\u5230 Ack \u4f1a\u8ba4\u4e3a \u8d85\u65f6\u5931\u8d25 \u53ef\u5b89\u5168\u53d1\u8d77 \u91cd\u8bd5\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_76fd71ff804740ca753a7dd6fd56a356.jpg\" alt=\"\" \/><\/p>\n<h4>3. \u60c5\u5f623<\/h4>\n<blockquote><p>\n  \u6570\u636e\u5230\u8fbe Leader \u8282\u70b9\uff0c\u6210\u529f\u590d\u5236\u5230 Follower \u6240\u6709\u8282\u70b9\uff0c\u4f46 Follower \u8fd8\u672a\u5411 Leader \u54cd\u5e94\u63a5\u6536\u3002\n<\/p><\/blockquote>\n<p>\u8fd9\u4e2a\u9636\u6bb5 Leader \u6302\u6389\uff0c\u867d\u7136\u6570\u636e\u5728 Follower \u8282\u70b9\u5904\u4e8e \u672a\u63d0\u4ea4\u72b6\u6001\uff08Uncommitted\uff09\uff0c\u4f46\u662f \u4fdd\u6301\u4e00\u81f4 \u7684\u3002\u91cd\u65b0\u9009\u51fa Leader \u540e\u53ef\u5b8c\u6210 \u6570\u636e\u63d0\u4ea4\u3002<\/p>\n<p>\u6b64\u65f6 Client \u7531\u4e8e\u4e0d\u77e5\u5230\u5e95\u63d0\u4ea4\u6210\u529f\u6ca1\u6709\uff0c\u53ef\u91cd\u8bd5\u63d0\u4ea4\u3002\u9488\u5bf9\u8fd9\u79cd\u60c5\u51b5 Raft \u8981\u6c42 RPC \u8bf7\u6c42\u5b9e\u73b0 \u5e42\u7b49\u6027\uff0c\u4e5f\u5c31\u662f\u8981\u5b9e\u73b0 \u5185\u90e8\u53bb\u91cd\u673a\u5236\u3002<\/p>\n<h4>4. \u60c5\u5f624<\/h4>\n<blockquote><p>\n  \u6570\u636e\u5230\u8fbe Leader \u8282\u70b9\uff0c\u6210\u529f\u590d\u5236\u5230 Follower \u7684\u90e8\u5206\u8282\u70b9\uff0c\u4f46\u8fd9\u90e8\u5206 Follower \u8282\u70b9\u8fd8\u672a\u5411 Leader \u54cd\u5e94\u63a5\u6536\u3002\n<\/p><\/blockquote>\n<p>\u8fd9\u4e2a\u9636\u6bb5 Leader \u6302\u6389\uff0c\u6570\u636e\u5728 Follower \u8282\u70b9\u5904\u4e8e \u672a\u63d0\u4ea4\u72b6\u6001\uff08Uncommitted\uff09\u4e14 \u4e0d\u4e00\u81f4\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_4f70d6def10208eceed823c7d6430f50.jpg\" alt=\"\" \/><\/p>\n<p>Raft \u534f\u8bae\u8981\u6c42\u6295\u7968\u53ea\u80fd\u6295\u7ed9\u62e5\u6709 \u6700\u65b0\u6570\u636e \u7684\u8282\u70b9\u3002\u6240\u4ee5\u62e5\u6709\u6700\u65b0\u6570\u636e\u7684\u8282\u70b9\u4f1a\u88ab\u9009\u4e3a Leader\uff0c\u7136\u540e\u518d \u5f3a\u5236\u540c\u6b65\u6570\u636e \u5230\u5176\u4ed6 Follower\uff0c\u4fdd\u8bc1 \u6570\u636e\u4e0d\u4f1a\u4e22\u5931\u5e76 \u6700\u7ec8\u4e00\u81f4\u3002<\/p>\n<h4>5. \u60c5\u5f625<\/h4>\n<blockquote><p>\n  \u6570\u636e\u5230\u8fbe Leader \u8282\u70b9\uff0c\u6210\u529f\u590d\u5236\u5230 Follower \u6240\u6709\u6216\u591a\u6570\u8282\u70b9\uff0c\u6570\u636e\u5728 Leader \u5904\u4e8e\u5df2\u63d0\u4ea4\u72b6\u6001\uff0c\u4f46\u5728 Follower \u5904\u4e8e\u672a\u63d0\u4ea4\u72b6\u6001\u3002\n<\/p><\/blockquote>\n<p>\u8fd9\u4e2a\u9636\u6bb5 Leader \u6302\u6389\uff0c\u91cd\u65b0\u9009\u51fa \u65b0\u7684 Leader \u540e\u7684\u5904\u7406\u6d41\u7a0b\u548c\u9636\u6bb5 3 \u4e00\u6837\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_d33c2c7ed6f42bf43c4457ad9e2e0c86.jpg\" alt=\"\" \/><\/p>\n<h4>6. \u60c5\u5f626<\/h4>\n<blockquote><p>\n  \u6570\u636e\u5230\u8fbe Leader \u8282\u70b9\uff0c\u6210\u529f\u590d\u5236\u5230 Follower \u6240\u6709\u6216\u591a\u6570\u8282\u70b9\uff0c\u6570\u636e\u5728\u6240\u6709\u8282\u70b9\u90fd\u5904\u4e8e\u5df2\u63d0\u4ea4\u72b6\u6001\uff0c\u4f46\u8fd8\u672a\u54cd\u5e94 Client\u3002\n<\/p><\/blockquote>\n<p>\u8fd9\u4e2a\u9636\u6bb5 Leader \u6302\u6389\uff0c\u96c6\u7fa4\u5185\u90e8\u6570\u636e\u5176\u5b9e\u5df2\u7ecf\u662f \u4e00\u81f4\u7684\uff0cClient \u91cd\u590d\u91cd\u8bd5\u57fa\u4e8e\u5e42\u7b49\u7b56\u7565\u5bf9 \u4e00\u81f4\u6027\u65e0\u5f71\u54cd\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_43b6597c1902732ded54445b3e77ff1a.jpg\" alt=\"\" \/><\/p>\n<h4>7. \u60c5\u5f627<\/h4>\n<blockquote><p>\n  \u7f51\u7edc\u5206\u533a\u5bfc\u81f4\u7684\u8111\u88c2\u60c5\u51b5\uff0c\u51fa\u73b0\u53cc Leader \u7684\u73b0\u8c61\u3002\n<\/p><\/blockquote>\n<p>\u7f51\u7edc\u5206\u533a \u5c06\u539f\u5148\u7684 Leader \u8282\u70b9\u548c Follower \u8282\u70b9\u5206\u9694\u5f00\uff0cFollower \u6536\u4e0d\u5230 Leader \u7684 \u5fc3\u8df3 \u5c06 \u91cd\u65b0 \u53d1\u8d77\u9009\u4e3e\u4ea7\u751f\u65b0\u7684 Leader\uff0c\u8fd9\u65f6\u5c31\u4ea7\u751f\u4e86 \u53ccLeader \u73b0\u8c61\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_7c1a97504c1c13863b810bbcbce53434.jpg\" alt=\"\" \/><\/p>\n<p>\u539f\u5148\u7684 Leader \u72ec\u81ea\u5728\u4e00\u4e2a\u533a\uff0c\u5411\u5b83\u63d0\u4ea4\u6570\u636e\u4e0d\u53ef\u80fd\u590d\u5236\u5230\u591a\u6570\u8282\u70b9\u6240\u4ee5\u6c38\u8fdc\u63d0\u4ea4\u4e0d\u6210\u529f\u3002\u5411\u65b0\u7684 Leader \u63d0\u4ea4\u6570\u636e\u53ef\u4ee5\u63d0\u4ea4\u6210\u529f\u3002<br \/>\n\u7f51\u7edc\u6062\u590d \u540e\uff0c\u65e7\u7684 Leader \u53d1\u73b0\u96c6\u7fa4\u4e2d\u6709 \u66f4\u65b0\u4efb\u671f\uff08Term\uff09\u7684\u65b0 Leader \uff0c\u5219 \u81ea\u52a8\u964d\u7ea7 \u4e3a Follower \u5e76\u4ece\u65b0 Leader \u5904 \u540c\u6b65\u6570\u636e \u8fbe\u6210\u96c6\u7fa4 \u6570\u636e\u4e00\u81f4\u3002<\/p>\n<p><strong>\u9a8c\u8bc1\u7ed3\u679c<\/strong><\/p>\n<p>\u7efc\u4e0a\u7a77\u4e3e\u5206\u6790\u4e86 \u6700\u5c0f\u96c6\u7fa4\uff083 \u8282\u70b9\uff09\u9762\u4e34\u7684\u6240\u6709\u60c5\u51b5\uff0c\u53ef\u4ee5\u770b\u51fa Raft \u534f\u8bae\u90fd\u80fd\u5f88\u597d\u7684\u5e94\u5bf9 \u4e00\u81f4\u6027\u95ee\u9898\uff0c\u5e76\u4e14\u5f88\u5bb9\u6613\u7406\u89e3\u3002<\/p>\n<h2>\u5c0f\u7ed3<\/h2>\n<p>Paxos \u7b97\u6cd5\u662f Leslie Lamport \u5728 1990 \u5e74\u5c31\u516c\u5f00\u53d1\u8868\u5728\u4e86\u81ea\u5df1\u7684\u7f51\u7ad9\u4e0a\uff0c\u60f3\u60f3\u6211\u4eec\u662f\u4ec0\u4e48\u65f6\u5019\u624d\u542c\u8bf4\u7684\uff1f\u4ec0\u4e48\u65f6\u5019\u624d\u6709\u4e00\u4e2a\u53ef\u7528\u7684\u5b9e\u73b0\uff1f\u800c Raft \u7b97\u6cd5\u662f 2013 \u5e74\u53d1\u8868\u7684\uff0c\u5927\u5bb6\u5728\u53c2\u8003 Raft\u5f00\u6e90\u5b9e\u73b0\u5e93\uff0c\u53ef\u4ee5\u770b\u5230\u6709\u5f88\u591a\u57fa\u4e8e\u4e0d\u540c\u8bed\u8a00\u7684 \u5f00\u6e90\u5b9e\u73b0\u5e93\uff0c\u8fd9\u5c31\u662f \u53ef\u7406\u89e3\u6027 \u7684\u91cd\u8981\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b80\u4ecb Raft \u4e5f\u662f\u4e00\u4e2a \u4e00\u81f4\u6027\u7b97\u6cd5\uff0c\u548c Paxos \u76ee\u6807\u76f8\u540c\u3002\u4f46\u5b83\u8fd8\u6709\u53e6\u4e00\u4e2a\u540d\u5b57 &#8211; \u6613\u4e8e\u7406\u89e3\u7684 [&hellip;]<\/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 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[15],"tags":[403],"class_list":["post-1719","post","type-post","status-publish","format-standard","hentry","category-15","tag-403"],"_links":{"self":[{"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/1719","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=1719"}],"version-history":[{"count":7,"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/1719\/revisions"}],"predecessor-version":[{"id":3274,"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/1719\/revisions\/3274"}],"wp:attachment":[{"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1719"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1719"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}