{"id":117630,"date":"2026-10-25T04:32:51","date_gmt":"2026-10-24T20:32:51","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/117630.html"},"modified":"2026-10-25T04:32:51","modified_gmt":"2026-10-24T20:32:51","slug":"raft-%e8%8a%82%e7%82%b9%e4%b8%8b%e7%ba%bf%e4%b8%8e%e5%b9%b3%e6%bb%91%e8%bf%81%e7%a7%bb%ef%bc%9a%e9%85%8d%e7%bd%ae%e5%8f%98%e6%9b%b4%e9%98%b6%e6%ae%b5%e9%81%bf%e5%85%8d%e5%8f%8c-leader-%e5%87%ba","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/117630.html","title":{"rendered":"Raft \u8282\u70b9\u4e0b\u7ebf\u4e0e\u5e73\u6ed1\u8fc1\u79fb\uff1a\u914d\u7f6e\u53d8\u66f4\u9636\u6bb5\u907f\u514d\u53cc Leader \u51fa\u73b0\u7684\u8054\u5408\u5171\u8bc6\u5b9e\u6218"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261024203250-6add15f222cce.webp\" alt=\"\u5c01\u9762\u4fe1\u606f\u56fe\" \/><\/p>\n<p>\u5728\u5206\u5e03\u5f0f\u952e\u503c\u5b58\u50a8\u4e0e\u5206\u5e03\u5f0f\u4e8b\u52a1\u6570\u636e\u5e93&#xff08;\u5982 TiKV\u3001etcd \u7b49&#xff09;\u7684\u5b9e\u9645\u751f\u4ea7\u8fd0\u7ef4\u4e2d&#xff0c;\u7269\u7406\u786c\u4ef6\u8001\u5316\u66f4\u66ff\u3001\u673a\u623f\u642c\u8fc1\u6216\u673a\u5668\u6545\u969c\u4e0b\u7ebf\u662f\u5e38\u6001\u5316\u64cd\u4f5c\u3002\u7136\u800c&#xff0c;\u96c6\u7fa4\u6210\u5458\u53d8\u66f4&#xff08;Membership Change&#xff09;\u5411\u6765\u662f\u5206\u5e03\u5f0f\u7cfb\u7edf\u8fd0\u884c\u671f\u95f4\u6700\u8106\u5f31\u7684\u7269\u7406\u5207\u7247\u3002\u5982\u679c\u5728\u52a8\u6001\u589e\u52a0\u6216\u5254\u9664\u8282\u70b9\u7684\u8fc7\u7a0b\u4e2d\u7f3a\u4e4f\u4e25\u8c28\u7684\u4e00\u81f4\u6027\u673a\u5236\u4fdd\u62a4&#xff0c;\u6781\u6613\u5728\u96c6\u7fa4\u5185\u90e8\u5f62\u6210\u4e24\u4e2a\u4e92\u4e0d\u76f8\u4ea4\u7684\u591a\u6570\u6d3e&#xff08;Disjoint Majorities&#xff09;&#xff0c;\u8fdb\u800c\u5bfc\u81f4\u5728\u540c\u4e00\u4efb\u671f&#xff08;Term&#xff09;\u5185\u8bde\u751f\u4e24\u4e2a\u5408\u6cd5 Leader&#xff0c;\u5f15\u53d1\u4e0d\u53ef\u9006\u8f6c\u7684\u8111\u88c2&#xff08;Split-brain&#xff09;\u4e0e\u6570\u636e\u5206\u53c9\u8986\u706d\u3002<\/p>\n<p>\u8bb8\u591a\u5de5\u7a0b\u56e2\u961f\u5728\u65e9\u671f\u5b9e\u73b0 Raft \u7b97\u6cd5\u65f6&#xff0c;\u503e\u5411\u4e8e\u91c7\u7528\u7b80\u5355\u7684\u5355\u6b65\u8282\u70b9\u53d8\u66f4&#xff08;\u6bcf\u6b21\u53ea\u589e\u5220\u4e00\u4e2a\u8282\u70b9&#xff09;\u3002\u4f46\u5728\u9762\u4e34\u673a\u623f\u6574\u4f53\u642c\u8fc1\u6216\u591a\u4e2a\u574f\u76d8\u8282\u70b9\u540c\u65f6\u4e0b\u7ebf\u65f6&#xff0c;\u5355\u6b65\u53d8\u66f4\u4e0d\u4ec5\u8017\u65f6\u6781\u5176\u5197\u957f&#xff0c;\u800c\u4e14\u5728\u8fde\u7eed\u6545\u969c\u5e76\u53d1\u65f6\u72b6\u6001\u673a\u63a8\u6f14\u6781\u6613\u5931\u63a7\u3002\u5de5\u4e1a\u7ea7\u5206\u5e03\u5f0f\u5b58\u50a8\u7cfb\u7edf\u5728\u5904\u7406\u5927\u89c4\u6a21\u5e73\u6ed1\u8fc1\u79fb\u65f6&#xff0c;\u6838\u5fc3\u4f9d\u9760\u7684\u662f Raft \u8bba\u6587\u4e2d\u5b9a\u4e49\u7684\u7ec8\u6781\u4fdd\u969c\u2014\u2014\u8054\u5408\u5171\u8bc6&#xff08;Joint Consensus&#xff09;\u3002<\/p>\n<h4>\u8111\u88c2\u98ce\u9669\u5256\u6790&#xff1a;\u591a\u6570\u6d3e\u7684\u91cd\u53e0\u65ad\u88c2<\/h4>\n<p>\u4e3a\u4ec0\u4e48\u914d\u7f6e\u53d8\u66f4\u4e0d\u80fd\u76f4\u63a5\u4e00\u6b21\u6027\u4ece\u65e7\u914d\u7f6e $C_{old}$ \u5207\u6362\u5230\u65b0\u914d\u7f6e $C_{new}$&#xff1f;<\/p>\n<p>\u5047\u8bbe\u4e00\u4e2a\u7531 3 \u4e2a\u8282\u70b9\u6784\u6210\u7684\u96c6\u7fa4 ${A, B, C}$&#xff0c;\u73b0\u5728\u8ba1\u5212\u5c06\u5176\u5e73\u6ed1\u8fc1\u79fb\u66ff\u6362\u81f3\u53e6\u5916\u4e24\u53f0\u66f4\u9ad8\u6027\u80fd\u7684\u65b0\u673a\u67b6\u8282\u70b9&#xff0c;\u6784\u5efa\u65b0\u7684 3 \u8282\u70b9\u96c6\u7fa4 ${C, D, E}$\u3002\u82e5 Leader \u76f4\u63a5\u5411\u6240\u6709\u8282\u70b9\u5e7f\u64ad\u201c\u5f53\u524d\u751f\u6548\u914d\u7f6e\u53d8\u66f4\u4e3a ${C, D, E}$\u201d&#xff0c;\u7531\u4e8e\u5206\u5e03\u5f0f\u7f51\u7edc\u4e2d\u6d88\u606f\u5b58\u5728\u4e0d\u53ef\u63a7\u7684\u5ef6\u8fdf\u548c\u4e22\u5305&#xff0c;\u4e0d\u540c\u8282\u70b9\u6536\u5230\u5e76\u5e94\u7528\u8be5\u65e5\u5fd7\u7684\u65f6\u673a\u5fc5\u7136\u5b58\u5728\u7269\u7406\u65f6\u5dee&#xff1a;<\/p>\n<ul>\n<li>\u8282\u70b9 $A$ \u548c $B$ \u5c1a\u672a\u6536\u5230\u8be5\u6d88\u606f&#xff0c;\u4f9d\u7136\u9075\u5faa $C_{old}&#061;{A, B, C}$ \u7684\u591a\u6570\u6d3e\u4ef2\u88c1\u539f\u5219&#xff08;\u53ea\u9700 2 \u7968\u8d5e\u6210\u5373\u53ef\u5f62\u6210\u51b3\u8bae&#xff09;&#xff0c;\u5b83\u4eec\u5b8c\u5168\u53ef\u4ee5\u81ea\u4e3b\u9009\u51fa $A$ \u4f5c\u4e3a\u5408\u6cd5 Leader\u3002<\/li>\n<li>\u4e0e\u6b64\u540c\u65f6&#xff0c;\u8282\u70b9 $D$ \u548c $E$ \u5df2\u7ecf\u6536\u5230\u4e86\u65b0\u914d\u7f6e\u5e76\u8fdb\u5165 $C_{new}&#061;{C, D, E}$&#xff0c;\u5728\u65b0\u914d\u7f6e\u7684\u591a\u6570\u6d3e\u89c4\u5219\u4e0b&#xff08;\u53ea\u9700 2 \u7968\u8d5e\u6210&#xff09;&#xff0c;\u8282\u70b9 $D$ \u548c $E$ \u540c\u6837\u53ef\u4ee5\u5408\u6cd5\u9009\u4e3e\u51fa $D$ \u4f5c\u4e3a Leader\u3002<\/li>\n<\/ul>\n<p>\u6b64\u65f6&#xff0c;\u96c6\u7fa4\u5728\u540c\u4e00\u65f6\u523b\u5206\u88c2\u51fa\u4e86\u4e24\u4e2a\u5e76\u884c\u7684\u6cd5\u5b9a\u591a\u6570\u6d3e\u3002\u4e24\u4e2a Leader \u540c\u65f6\u5bf9\u5916\u63a5\u53d7\u5ba2\u6237\u7aef\u5199\u8bf7\u6c42&#xff0c;\u5e95\u5c42\u5b58\u50a8\u72b6\u6001\u673a\u5f7b\u5e95\u5206\u9053\u626c\u9573&#xff0c;\u7cfb\u7edf\u5ba3\u544a\u5d29\u6e83\u3002<\/p>\n<h4>\u8054\u5408\u5171\u8bc6&#xff08;Joint Consensus&#xff09;\u7684\u7269\u7406\u6267\u884c\u6cd5\u5219<\/h4>\n<p>\u8054\u5408\u5171\u8bc6\u901a\u8fc7\u5f15\u5165\u4e00\u4e2a\u663e\u5f0f\u7684\u4e24\u9636\u6bb5\u8fc7\u6e21\u914d\u7f6e\u72b6\u6001 $C_{old,new}$&#xff0c;\u5728\u6570\u5b66\u4e0a\u5f3a\u5236\u5207\u65ad\u4e86\u8111\u88c2\u7684\u53ef\u80fd\u3002<\/p>\n<p>\u5728 $C_{old,new}$ \u72b6\u6001\u4e0b&#xff0c;\u4efb\u4f55\u65e5\u5fd7\u7684\u63d0\u4ea4&#xff08;\u5305\u62ec\u914d\u7f6e\u53d8\u66f4\u65e5\u5fd7\u672c\u8eab&#xff09;\u4ee5\u53ca Leader \u9009\u4e3e&#xff0c;\u5fc5\u987b\u540c\u65f6\u6ee1\u8db3\u4e00\u4e2a\u6781\u7aef\u82db\u523b\u7684\u524d\u63d0\u6761\u4ef6&#xff1a;\u5fc5\u987b\u5728 $C_{old}$ \u4e2d\u83b7\u5f97\u591a\u6570\u6d3e\u8d5e\u6210&#xff0c;\u4e14\u5fc5\u987b\u5728 $C_{new}$ \u4e2d\u540c\u65f6\u83b7\u5f97\u591a\u6570\u6d3e\u8d5e\u6210\u3002\u4e24\u4e2a\u72ec\u7acb\u7684\u591a\u6570\u6d3e\u91cd\u5408\u6821\u9a8c&#xff0c;\u4f7f\u5f97\u4efb\u4f55\u4e00\u65b9\u90fd\u65e0\u6cd5\u5355\u72ec\u8d8a\u6743\u5f62\u6210\u51b3\u8bae\u3002<\/p>\n<p>\u9636\u6bb5\u4e00&#xff1a;Leader \u5199\u5165\u5e76\u63d0\u4ea4\u8054\u5408\u914d\u7f6e\u65e5\u5fd7 C_{old,new}<br \/>\n       \u6b64\u65f6\u96c6\u7fa4\u89c4\u5219&#xff1a;Quorum &#061; (Majority of C_{old}) AND (Majority of C_{new})<\/p>\n<p>\u9636\u6bb5\u4e8c&#xff1a;\u4e00\u65e6 C_{old,new} \u6210\u529f Commit&#xff0c;Leader \u7acb\u5373\u5199\u5165\u76ee\u6807\u914d\u7f6e C_{new}<br \/>\n       \u4e00\u65e6 C_{new} \u5728\u65b0\u96c6\u7fa4\u4e2d\u8fbe\u6210\u591a\u6570\u6d3e\u63d0\u4ea4&#xff0c;\u8001\u8282\u70b9\u6b63\u5f0f\u5b89\u5168\u9000\u5f79<\/p>\n<h4>\u5de5\u4e1a\u7ea7 Joint Consensus \u6295\u7968\u88c1\u51b3\u6838\u5fc3\u5b9e\u73b0<\/h4>\n<p>\u5728\u72b6\u6001\u673a\u4e0e\u9009\u4e3e\u6295\u7968\u903b\u8f91\u4e2d&#xff0c;\u5fc5\u987b\u5b9e\u73b0\u652f\u6301\u53cc\u96c6\u5408\u7684\u6cd5\u5b9a\u4eba\u6570\u88c1\u51b3\u5668&#xff08;Joint Quorum Matcher&#xff09;\u3002\u4ee5\u4e0b\u4e3a Go \u8bed\u8a00\u5de5\u7a0b\u6838\u5fc3\u5b9e\u73b0&#xff1a;<\/p>\n<p>\/\/ quorum.go<br \/>\n\/\/ \u8054\u5408\u5171\u8bc6\u6cd5\u5b9a\u4eba\u6570\u4ef2\u88c1\u5668<\/p>\n<p>package raft<\/p>\n<p>type Config struct {<br \/>\nOldNodes map[uint64]bool<br \/>\nNewNodes map[uint64]bool<br \/>\n}<\/p>\n<p>type JointQuorum struct {<br \/>\nCfg Config<br \/>\n}<\/p>\n<p>func (jq *JointQuorum) IsCommitted(votes map[uint64]bool) bool {<br \/>\n\/\/ \u6821\u9a8c\u5728 C_old \u96c6\u5408\u4e2d\u662f\u5426\u8fbe\u5230\u591a\u6570\u6d3e<br \/>\noldAgreed :&#061; 0<br \/>\nfor id :&#061; range jq.Cfg.OldNodes {<br \/>\nif votes[id] {<br \/>\noldAgreed&#043;&#043;<br \/>\n}<br \/>\n}<br \/>\noldMajority :&#061; (len(jq.Cfg.OldNodes) \/ 2) &#043; 1<br \/>\nif oldAgreed &lt; oldMajority {<br \/>\nreturn false<br \/>\n}<\/p>\n<p>\/\/ \u82e5\u5f53\u524d\u5904\u4e8e\u8054\u5408\u72b6\u6001&#xff0c;\u8fd8\u5fc5\u987b\u6821\u9a8c\u5728 C_new \u96c6\u5408\u4e2d\u662f\u5426\u8fbe\u5230\u591a\u6570\u6d3e<br \/>\nif len(jq.Cfg.NewNodes) &gt; 0 {<br \/>\nnewAgreed :&#061; 0<br \/>\nfor id :&#061; range jq.Cfg.NewNodes {<br \/>\nif votes[id] {<br \/>\nnewAgreed&#043;&#043;<br \/>\n}<br \/>\n}<br \/>\nnewMajority :&#061; (len(jq.Cfg.NewNodes) \/ 2) &#043; 1<br \/>\nif newAgreed &lt; newMajority {<br \/>\nreturn false<br \/>\n}<br \/>\n}<\/p>\n<p>return true<br \/>\n}<\/p>\n<p>\u5728 Leader \u6267\u884c\u914d\u7f6e\u8fc1\u79fb\u65f6&#xff0c;\u5176\u6807\u51c6\u72b6\u6001\u6d41\u8f6c\u8c03\u5ea6\u5982\u4e0b&#xff1a;<\/p>\n<p>\/\/ membership.go<br \/>\n\/\/ \u53d1\u8d77\u5e73\u6ed1\u4e0b\u7ebf\u4e0e\u8054\u5408\u5171\u8bc6\u8fc1\u79fb\u7684\u4e3b\u6d41\u7a0b<\/p>\n<p>func (r *RaftNode) ProposeMembershipChange(newMembers []uint64) error {<br \/>\nif r.State !&#061; StateLeader {<br \/>\nreturn ErrNotLeader<br \/>\n}<br \/>\n\/\/ \u786e\u4fdd\u5f53\u524d\u6ca1\u6709\u5904\u4e8e\u672a\u51b3\u7684\u914d\u7f6e\u53d8\u66f4\u4e2d<br \/>\nif r.isJointStateActive() {<br \/>\nreturn ErrPendingConfigChange<br \/>\n}<\/p>\n<p>\/\/ \u6b65\u9aa4 1&#xff1a;\u6784\u5efa\u5e76\u5e7f\u64ad\u8054\u5408\u914d\u7f6e C_{old,new}<br \/>\njointConfig :&#061; r.buildJointConfig(r.CurrentCluster, newMembers)<br \/>\nr.appendAndReplicateEntry(EntryTypeConfChangeJoint, jointConfig)<\/p>\n<p>\/\/ \u72b6\u6001\u673a\u5728 commit \u8054\u5408\u914d\u7f6e\u540e&#xff0c;\u7531\u5185\u90e8\u56de\u8c03\u81ea\u52a8\u89e6\u53d1\u4e0b\u4e00\u6b65&#xff1a;<br \/>\n\/\/ \u6b65\u9aa4 2&#xff1a;\u5199\u5165\u6700\u7ec8\u914d\u7f6e C_{new} \u5e76\u5254\u9664\u5b64\u7acb\u8282\u70b9<br \/>\nreturn nil<br \/>\n}<\/p>\n<h4>\u751f\u4ea7\u6697\u5751\u9632\u8303&#xff1a;\u7834\u574f\u6027\u8282\u70b9&#xff08;Disruptive Servers&#xff09;\u89c4\u907f<\/h4>\n<p>\u9664\u4e86\u591a\u6570\u6d3e\u8ba1\u7b97&#xff0c;\u5728\u8282\u70b9\u4e0b\u7ebf\u7684\u7269\u7406\u5b9e\u64cd\u4e2d&#xff0c;\u6700\u5bb9\u6613\u5f15\u53d1\u96c6\u7fa4\u4e0d\u53ef\u7528\u7684\u662f\u201c\u4e0b\u7ebf\u8282\u70b9\u5f15\u53d1\u7684\u5e7d\u7075\u9009\u4e3e\u98ce\u66b4\u201d\u3002<\/p>\n<p>\u5f53\u4e00\u4e2a\u8282\u70b9\u88ab\u79fb\u51fa\u914d\u7f6e&#xff08;\u4f8b\u5982\u8282\u70b9 $A$&#xff09;&#xff0c;\u5b83\u7684\u7269\u7406\u7f51\u7ebf\u53ef\u80fd\u5c1a\u672a\u62d4\u9664&#xff0c;\u6216\u8005\u670d\u52a1\u8fdb\u7a0b\u8fd8\u5728\u540e\u53f0\u8fd0\u884c\u3002\u7531\u4e8e\u5b83\u4e0d\u518d\u6536\u5230 Leader \u7684\u5fc3\u8df3 AppendEntries RPC&#xff0c;\u5176\u5185\u90e8\u7684\u9009\u4e3e\u5b9a\u65f6\u5668&#xff08;Election Timeout&#xff09;\u4f1a\u5468\u671f\u6027\u5230\u671f\u3002\u8be5\u8282\u70b9\u4f1a\u5355\u65b9\u9762\u81ea\u589e\u672c\u5730 Term \u5e76\u5411\u5168\u7f51\u72c2\u53d1 RequestVote\u3002\u6839\u636e Raft \u539f\u59cb\u89c4\u8303&#xff0c;\u4efb\u4f55\u8282\u70b9\u6536\u5230\u4e00\u4e2a\u66f4\u9ad8\u7684 Term \u6d88\u606f&#xff0c;\u90fd\u5fc5\u987b\u7acb\u5373\u653e\u5f03\u5f53\u524d\u8eab\u4efd\u5e76\u5f3a\u5236\u964d\u7ea7\u4e3a Follower&#xff08;Step Down&#xff09;&#xff0c;\u8fd9\u4f1a\u5bfc\u81f4\u5408\u6cd5 Leader \u9891\u7e41\u88ab\u4e0b\u7ebf\u8282\u70b9\u201c\u6253\u843d\u9a6c\u4e0b\u201d&#xff0c;\u5bfc\u81f4\u751f\u4ea7\u670d\u52a1\u957f\u65f6\u95f4\u9707\u8361\u3002<\/p>\n<p>\u5fc5\u987b\u5728\u7cfb\u7edf\u4e2d\u4e25\u683c\u56fa\u5316\u4e24\u9053\u9632\u7ebf&#xff1a;<\/p>\n<li>Pre-Vote \u673a\u5236&#xff1a;\u5728\u8282\u70b9\u6b63\u5f0f\u589e\u52a0\u672c\u5730 Term \u53d1\u8d77\u771f\u6295\u7968\u524d&#xff0c;\u5fc5\u987b\u5148\u53d1\u8d77\u4e00\u8f6e\u9884\u6295\u7968&#xff08;Pre-Vote&#xff09;\u3002\u53ea\u6709\u5f53\u8be5\u8282\u70b9\u6536\u5230\u591a\u6570\u6d3e\u7684\u9884\u6295\u7968\u8d5e\u6210&#xff0c;\u8bc1\u660e\u5b83\u81ea\u5df1\u80fd\u591f\u4ece\u5f53\u524d\u96c6\u7fa4\u83b7\u5f97\u591a\u6570\u8ba4\u53ef\u65f6&#xff0c;\u624d\u88ab\u5141\u8bb8\u9012\u589e Term\u3002\u4e0b\u7ebf\u5b64\u513f\u8282\u70b9\u6839\u672c\u65e0\u6cd5\u62ff\u5230\u4efb\u4f55\u591a\u6570\u6d3e\u540c\u610f&#xff0c;\u76f4\u63a5\u5728 Pre-Vote \u9636\u6bb5\u88ab\u7269\u7406\u6390\u6b7b&#xff0c;\u4e0d\u4f1a\u5bf9\u73b0\u6709 Leader \u9020\u6210\u4efb\u4f55\u51b2\u51fb\u3002<\/li>\n<li>CheckQuorum \u5b88\u536b&#xff1a;Leader \u8282\u70b9\u6bcf\u9694\u56fa\u5b9a\u5468\u671f\u68c0\u67e5\u81ea\u5df1\u662f\u5426\u5728\u6700\u8fd1\u4e00\u4e2a\u79df\u671f\u5185\u6536\u5230\u8fc7\u591a\u6570\u6d3e\u8282\u70b9\u7684\u5fc3\u8df3\u56de\u590d\u3002\u82e5\u6ca1\u6709&#xff0c;\u5219\u81ea\u4e3b\u964d\u7ea7&#xff0c;\u675c\u7edd\u76f2\u76ee\u5fc3\u8df3\u3002<\/li>\n<h4>\u8fc1\u79fb\u5b9e\u6218 SOP \u4e0e\u6536\u76ca\u8bc4\u4f30<\/h4>\n<p>\u9075\u5faa\u8054\u5408\u5171\u8bc6\u4e0e\u9884\u68c0\u67e5\u673a\u5236&#xff0c;\u5728\u67d0\u767e TB \u7ea7\u65f6\u5e8f\u5b58\u50a8\u5e95\u5ea7\u4e2d\u6267\u884c\u8de8\u673a\u623f\u6574\u4f53\u5e73\u6ed1\u8fc1\u79fb&#xff1a;<\/p>\n<ul>\n<li>\u65b0\u8282\u70b9\u5148\u4ee5 Learner&#xff08;\u53ea\u8bfb\u4e0d\u53c2\u4e0e\u6295\u7968&#xff09;\u8eab\u4efd\u9884\u540c\u6b65 WAL \u65e5\u5fd7\u4e0e\u6570\u636e\u5207\u7247&#xff0c;\u8ffd\u5e73\u5ef6\u8fdf\u81f3 10ms \u5185&#xff1b;<\/li>\n<li>\u4e0b\u53d1 Joint Consensus \u53d8\u66f4\u6307\u4ee4&#xff0c;\u6574\u4e2a\u96c6\u7fa4\u5728\u96f6\u505c\u673a\u3001\u8bfb\u5199\u96f6\u4e2d\u65ad\u7684\u524d\u63d0\u4e0b\u5e73\u7a33\u7a7f\u900f $C_{old,new}$ \u72b6\u6001\u5e76\u6536\u655b\u81f3 $C_{new}$&#xff1b;<\/li>\n<li>\u8001\u673a\u623f 16 \u53f0\u7269\u7406\u5b58\u50a8\u8282\u70b9\u4ece\u5bb9\u65ad\u7535\u5173\u673a&#xff0c;\u671f\u95f4\u6574\u4e2a\u751f\u4ea7\u96c6\u7fa4\u7684 P99 \u5199\u5165\u65f6\u5ef6\u59cb\u7ec8\u5e73\u7a33\u4fdd\u6301\u5728 4.5ms&#xff0c;\u672a\u53d1\u751f\u4e00\u6b21\u610f\u5916\u964d\u7ea7\u5207\u4e3b\u3002<\/li>\n<\/ul>\n<p>\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u672c\u8d28\u662f\u5bf9\u4e0d\u786e\u5b9a\u6027\u72b6\u6001\u7684\u7269\u7406\u6536\u655b\u3002\u8054\u5408\u5171\u8bc6\u7528\u4e25\u82db\u7684\u591a\u6570\u6d3e\u4ea4\u96c6\u7ea6\u675f&#xff0c;\u6d88\u9664\u4e86\u8282\u70b9\u6d41\u52a8\u8fc7\u7a0b\u4e2d\u7684\u6240\u6709\u7070\u8272\u5730\u5e26&#xff0c;\u662f\u6784\u5efa\u96f6\u5b95\u673a\u751f\u4ea7\u5b58\u50a8\u5e95\u5ea7\u4e0d\u53ef\u903e\u8d8a\u7684\u5e95\u5c42\u6cd5\u5219\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u5206\u5e03\u5f0f\u952e\u503c\u5b58\u50a8\u4e0e\u5206\u5e03\u5f0f\u4e8b\u52a1\u6570\u636e\u5e93&#xff08;\u5982 TiKV\u3001etcd \u7b49&#xff09;\u7684\u5b9e\u9645\u751f\u4ea7\u8fd0\u7ef4\u4e2d&#xff0c;\u7269\u7406\u786c\u4ef6\u8001\u5316\u66f4\u66ff\u3001\u673a\u623f\u642c\u8fc1\u6216\u673a\u5668\u6545\u969c\u4e0b\u7ebf\u662f\u5e38\u6001\u5316\u64cd\u4f5c\u3002\u7136\u800c&#xff0c;\u96c6\u7fa4\u6210\u5458\u53d8\u66f4&#xff08;Membership Change&#xff09;\u5411\u6765\u662f\u5206\u5e03\u5f0f\u7cfb\u7edf\u8fd0\u884c\u671f\u95f4\u6700\u8106\u5f31\u7684\u7269\u7406\u5207\u7247\u3002\u5982\u679c\u5728\u52a8\u6001\u589e\u52a0\u6216\u5254\u9664\u8282\u70b9\u7684\u8fc7\u7a0b\u4e2d\u7f3a\u4e4f\u4e25\u8c28\u7684\u4e00\u81f4\u6027\u673a\u5236\u4fdd\u62a4&#xff0c;\u6781\u6613\u5728\u96c6\u7fa4\u5185\u90e8\u5f62\u6210\u4e24\u4e2a\u4e92\u4e0d\u76f8\u4ea4\u7684\u591a\u6570\u6d3e&#xff08;Disjoint Majoritie<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[66,763,50,121,1348],"topic":[],"class_list":["post-117630","post","type-post","status-publish","format-standard","hentry","category-server","tag-ai","tag-763","tag-50","tag-121","tag-1348"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Raft \u8282\u70b9\u4e0b\u7ebf\u4e0e\u5e73\u6ed1\u8fc1\u79fb\uff1a\u914d\u7f6e\u53d8\u66f4\u9636\u6bb5\u907f\u514d\u53cc Leader \u51fa\u73b0\u7684\u8054\u5408\u5171\u8bc6\u5b9e\u6218 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/117630.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Raft \u8282\u70b9\u4e0b\u7ebf\u4e0e\u5e73\u6ed1\u8fc1\u79fb\uff1a\u914d\u7f6e\u53d8\u66f4\u9636\u6bb5\u907f\u514d\u53cc Leader \u51fa\u73b0\u7684\u8054\u5408\u5171\u8bc6\u5b9e\u6218 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u5728\u5206\u5e03\u5f0f\u952e\u503c\u5b58\u50a8\u4e0e\u5206\u5e03\u5f0f\u4e8b\u52a1\u6570\u636e\u5e93&#xff08;\u5982 TiKV\u3001etcd \u7b49&#xff09;\u7684\u5b9e\u9645\u751f\u4ea7\u8fd0\u7ef4\u4e2d&#xff0c;\u7269\u7406\u786c\u4ef6\u8001\u5316\u66f4\u66ff\u3001\u673a\u623f\u642c\u8fc1\u6216\u673a\u5668\u6545\u969c\u4e0b\u7ebf\u662f\u5e38\u6001\u5316\u64cd\u4f5c\u3002\u7136\u800c&#xff0c;\u96c6\u7fa4\u6210\u5458\u53d8\u66f4&#xff08;Membership 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name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/117630.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/117630.html\",\"name\":\"Raft \u8282\u70b9\u4e0b\u7ebf\u4e0e\u5e73\u6ed1\u8fc1\u79fb\uff1a\u914d\u7f6e\u53d8\u66f4\u9636\u6bb5\u907f\u514d\u53cc Leader \u51fa\u73b0\u7684\u8054\u5408\u5171\u8bc6\u5b9e\u6218 - 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