{"id":85,"date":"2018-03-10T14:43:05","date_gmt":"2018-03-10T06:43:05","guid":{"rendered":"http:\/\/www.max-shu.com\/blog\/?p=85"},"modified":"2018-03-10T14:43:05","modified_gmt":"2018-03-10T06:43:05","slug":"paxos%e7%ae%97%e6%b3%95-%e5%ae%8c%e5%85%a8%e5%b9%b3%e7%ad%89%e5%88%86%e5%b8%83%e5%bc%8f%e7%b3%bb%e7%bb%9f%e7%9a%84%e9%80%89%e4%b8%be%e7%ae%97%e6%b3%95","status":"publish","type":"post","link":"http:\/\/www.max-shu.com\/blog\/?p=85","title":{"rendered":"Paxos\u7b97\u6cd5-\u5b8c\u5168\u5e73\u7b49\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u9009\u4e3e\u7b97\u6cd5"},"content":{"rendered":"

\u8fc1\u79fb\u81eahttp:\/\/adaishu.blog.163.com\/blog\/static\/1758312862011488543282\/<\/a><\/p>\n

\u95ee\u9898\u548c\u5047\u8bbe<\/b><\/p>\n

Paxos \u7b97\u6cd5\u89e3\u51b3\u7684\u95ee\u9898\u662f\u4e00\u4e2a\u5206\u5e03\u5f0f\u7cfb\u7edf\u5982 \u4f55\u5c31\u67d0\u4e2a\u503c\uff08\u51b3\u8bae\uff09\u8fbe\u6210\u4e00\u81f4\u3002\u4e00\u4e2a\u5178\u578b\u7684\u573a\u666f\u662f\uff0c\u5728\u4e00\u4e2a\u5206\u5e03\u5f0f\u6570\u636e\u5e93\u7cfb\u7edf\u4e2d\uff0c\u5982\u679c\u5404\u8282\u70b9\u7684\u521d\u59cb\u72b6\u6001\u4e00\u81f4\uff0c\u6bcf\u4e2a\u8282\u70b9\u90fd\u6267\u884c\u76f8\u540c\u7684\u64cd\u4f5c\u5e8f\u5217\uff0c\u90a3\u4e48\u4ed6\u4eec\u6700\u540e\u80fd\u5f97 \u5230\u4e00\u4e2a\u4e00\u81f4\u7684\u72b6\u6001\u3002\u4e3a\u4fdd\u8bc1\u6bcf\u4e2a\u8282\u70b9\u6267\u884c\u76f8\u540c\u7684\u547d\u4ee4\u5e8f\u5217\uff0c\u9700\u8981\u5728\u6bcf\u4e00\u6761\u6307\u4ee4\u4e0a\u6267\u884c\u4e00\u4e2a\u300c\u4e00\u81f4\u6027\u7b97\u6cd5\u300d\u4ee5\u4fdd\u8bc1\u6bcf\u4e2a\u8282\u70b9\u770b\u5230\u7684\u6307\u4ee4\u4e00\u81f4\u3002\u4e00\u4e2a\u901a\u7528\u7684\u4e00\u81f4\u6027\u7b97\u6cd5\u53ef \u4ee5\u5e94\u7528\u5728\u8bb8\u591a\u573a\u666f\u4e2d\uff0c\u662f\u5206\u5e03\u5f0f\u8ba1\u7b97\u4e2d\u7684\u91cd\u8981\u95ee\u9898\u3002\u56e0\u6b64\u4ece20\u4e16\u7eaa80\u5e74\u4ee3\u8d77\u5bf9\u4e8e\u4e00\u81f4\u6027\u7b97\u6cd5\u7684\u7814\u7a76\u5c31\u6ca1\u6709\u505c\u6b62\u8fc7\u3002\u8282\u70b9\u901a\u4fe1\u5b58\u5728\u4e24\u79cd\u6a21\u578b\uff1a\u5171\u4eab\u5185\u5b58\uff08Shared memory\uff09\u548c\u6d88\u606f\u4f20\u9012\uff08Messages passing\uff09\u3002Paxos \u7b97\u6cd5\u5c31\u662f\u4e00\u79cd\u57fa\u4e8e\u6d88\u606f\u4f20\u9012\u6a21\u578b\u7684\u4e00\u81f4\u6027\u7b97\u6cd5\u3002<\/p>\n

\u4e3a\u63cf\u8ff0 Paxos \u7b97\u6cd5\uff0cLamport \u865a\u62df\u4e86\u4e00\u4e2a\u53eb\u505a Paxos \u7684\u5e0c\u814a\u57ce\u90a6\uff0c\u8fd9\u4e2a\u5c9b\u6309\u7167\u8bae\u4f1a\u6c11\u4e3b\u5236\u7684\u653f\u6cbb\u6a21\u5f0f\u5236\u8ba2\u6cd5\u5f8b\uff0c\u4f46\u662f\u6ca1\u6709\u4eba\u613f\u610f\u5c06\u81ea\u5df1\u7684\u5168\u90e8\u65f6\u95f4\u548c\u7cbe\u529b\u653e\u5728\u8fd9\u79cd\u4e8b\u60c5\u4e0a\u3002\u6240\u4ee5\u65e0\u8bba\u662f\u8bae\u5458\uff0c\u8bae\u957f\u6216\u8005\u4f20\u9012\u7eb8\u6761\u7684\u670d\u52a1\u5458\u90fd\u4e0d\u80fd\u627f\u8bfa\u522b\u4eba\u9700\u8981\u65f6\u4e00\u5b9a\u4f1a\u51fa\u73b0\uff0c\u4e5f\u65e0\u6cd5\u627f\u8bfa\u6279\u51c6\u51b3\u8bae\u6216\u8005\u4f20\u9012\u6d88\u606f\u7684\u65f6\u95f4\u3002\u4f46\u662f\u8fd9\u91cc\u5047\u8bbe\u6ca1\u6709\u62dc\u5360\u5ead\u5c06\u519b\u95ee\u9898\uff08Byzantine failure\uff0c\u5373\u867d\u7136\u6709\u53ef\u80fd\u4e00\u4e2a\u6d88\u606f\u88ab\u4f20\u9012\u4e86\u4e24\u6b21\uff0c\u4f46\u662f\u7edd\u5bf9\u4e0d\u4f1a\u51fa\u73b0\u9519\u8bef\u7684\u6d88\u606f\uff09\uff1b\u53ea\u8981\u7b49\u5f85\u8db3\u591f\u7684\u65f6\u95f4\uff0c\u6d88\u606f\u5c31\u4f1a\u88ab\u4f20\u5230\u3002\u53e6\u5916\uff0cPaxos \u5c9b\u4e0a\u7684\u8bae\u5458\u662f\u4e0d\u4f1a\u53cd\u5bf9\u5176\u4ed6\u8bae\u5458\u63d0\u51fa\u7684\u51b3\u8bae\u7684\u3002<\/p>\n

\u5bf9\u5e94\u4e8e\u5206\u5e03\u5f0f\u7cfb\u7edf\uff0c\u8bae\u5458\u5bf9\u5e94\u4e8e\u5404\u4e2a\u8282\u70b9\uff0c\u5236\u5b9a\u7684\u6cd5\u5f8b\u5bf9\u5e94\u4e8e\u7cfb\u7edf\u7684\u72b6\u6001\u3002\u5404\u4e2a\u8282\u70b9\u9700\u8981\u8fdb\u5165\u4e00\u4e2a\u4e00\u81f4\u7684\u72b6\u6001\uff0c\u4f8b\u5982\u5728\u72ec\u7acbCache\u7684\u5bf9\u79f0\u591a\u5904\u7406\u5668\u7cfb\u7edf\u4e2d\uff0c\u5404\u4e2a\u5904\u7406\u5668\u8bfb\u5185\u5b58\u7684\u67d0\u4e2a\u5b57\u8282\u65f6\uff0c\u5fc5\u987b\u8bfb\u5230\u540c\u6837\u7684\u4e00\u4e2a\u503c\uff0c\u5426\u5219\u7cfb\u7edf\u5c31\u8fdd\u80cc\u4e86\u4e00\u81f4\u6027\u7684\u8981\u6c42\u3002\u4e00\u81f4\u6027\u8981\u6c42\u5bf9\u5e94\u4e8e\u6cd5\u5f8b\u6761\u6587\u53ea\u80fd\u6709\u4e00\u4e2a\u7248\u672c\u3002\u8bae\u5458\u548c\u670d\u52a1\u5458\u7684\u4e0d\u786e\u5b9a\u6027\u5bf9\u5e94\u4e8e\u8282\u70b9\u548c\u6d88\u606f\u4f20\u9012\u901a\u9053\u7684\u4e0d\u53ef\u9760\u6027\u3002<\/p>\n

\u7b97\u6cd5<\/h2>\n

\u7b97\u6cd5\u7684\u63d0\u51fa\u4e0e\u8bc1\u660e<\/h3>\n

\u9996\u5148\u5c06\u8bae\u5458\u7684\u89d2\u8272\u5206\u4e3a proposers\uff0cacceptors\uff0c\u548c learners\uff08\u5141\u8bb8\u8eab\u517c\u6570\u804c\uff09\u3002proposers \u63d0\u51fa\u51b3\u8bae\uff0cacceptors \u6279\u51c6\u51b3\u8bae\uff0clearners\u300c\u5b66\u4e60\u300d\u51b3\u8bae\u3002\u5212\u5206\u89d2\u8272\u540e\uff0c\u5c31\u53ef\u4ee5\u66f4\u7cbe\u786e\u7684\u5b9a\u4e49\u95ee\u9898\uff1a<\/p>\n

    \n
  1. \u51b3\u8bae\uff08value\uff09\u53ea\u6709\u5728\u88ab proposers \u63d0\u51fa\u540e\u624d\u80fd\u6279\u51c6\uff08\u672a\u7ecf\u6279\u51c6\u7684\u51b3\u8bae\u79f0\u4e3a\u300c\u63d0\u6848\uff08proposal\uff09\u300d\uff09\uff1b<\/li>\n
  2. \u5728\u4e00\u6b21 Paxos \u7b97\u6cd5\u7684\u6267\u884c\u5b9e\u4f8b\u4e2d\uff0c\u53ea\u6279\u51c6\u4e00\u4e2a Value\uff1b<\/li>\n
  3. learners \u53ea\u80fd\u83b7\u5f97\u88ab\u6279\u51c6\uff08chosen\uff09\u7684 Value\u3002<\/li>\n<\/ol>\n

    \u53e6\u5916\u8fd8\u9700\u8981\u4fdd\u8bc1 Progress\u3002\u8fd9\u4e00\u70b9\u4ee5\u540e\u518d\u8ba8\u8bba\u3002<\/p>\n

    \u4f5c\u8005\u901a\u8fc7\u4e0d\u65ad\u52a0\u5f3a\u4e0a\u8ff03\u4e2a\u7ea6\u675f\uff08\u4e3b\u8981\u662f\u7b2c\u4e8c\u4e2a\uff09\u83b7\u5f97\u4e86 Paxos \u7b97\u6cd5\u3002<\/p>\n

    \u6279\u51c6 value \u7684\u8fc7\u7a0b\u4e2d\uff0c\u9996\u5148 proposers \u5c06 value \u53d1\u9001\u7ed9 acceptors\uff0c\u4e4b\u540e acceptors \u5bf9 value \u8fdb\u884c\u6279\u51c6\u3002\u4e3a\u4e86\u6ee1\u8db3\u53ea\u6279\u51c6\u4e00\u4e2a value \u7684\u7ea6\u675f\uff0c\u8981\u6c42\u7ecf\u300c\u591a\u6570\u6d3e\uff08majority\uff09\u300d\u6279\u51c6\u7684 value \u6210\u4e3a\u6b63\u5f0f\u7684\u51b3\u8bae\uff08\u79f0\u4e3a\u300c\u901a\u8fc7\u300d\u51b3\u8bae\uff09\u3002\u8fd9\u662f\u56e0\u4e3a\u65e0\u8bba\u662f\u6309\u7167\u4eba\u6570\u8fd8\u662f\u6309\u7167\u6743\u91cd\u5212\u5206\uff0c\u4e24\u7ec4\u300c\u591a\u6570\u6d3e\u300d\u81f3\u5c11\u6709\u4e00\u4e2a\u516c\u5171\u7684 acceptor\uff0c\u5982\u679c\u6bcf\u4e2a acceptor \u53ea\u80fd\u63a5\u53d7\u4e00\u4e2a value\uff0c\u7ea6\u675f2\u5c31\u80fd\u4fdd\u8bc1\u3002<\/p>\n

    \u4e8e\u662f\u4ea7\u751f\u4e86\u4e00\u4e2a\u663e\u800c\u6613\u89c1\u7684\u65b0\u7ea6\u675f\uff1a<\/p>\n

    P1\uff1a\u4e00\u4e2a acceptor \u5fc5\u987b\u6279\u51c6\u5b83\u63a5\u6536\u5230\u7684\u7b2c\u4e00\u4e2a value\u3002<\/pre>\n
    \u6ce8\u610f P1 \u662f\u4e0d\u5b8c\u5907\u7684\u3002\u5982\u679c\u6070\u597d\u4e00\u534a acceptor \u6279\u51c6 value A\uff0c\u53e6\u4e00\u534a\u6279\u51c6 value B\uff0c\u90a3\u4e48\u5c31\u65e0\u6cd5\u5f62\u6210\u591a\u6570\u6d3e\uff0c\u65e0\u6cd5\u6279\u51c6\u4efb\u4f55\u4e00\u4e2a\u503c\u3002<\/p>\n
    \u7ea6\u675f2\u5e76\u4e0d\u8981\u6c42\u53ea\u901a\u8fc7\u4e00\u4e2a\u63d0\u6848, \u6697\u793a\u53ef\u80fd\u5b58\u5728\u591a\u4e2a\u63d0\u6848\u3002\u53ea\u8981\u63d0\u6848\u7684 value \u662f\u4e00\u6837\u7684\uff0c\u901a\u8fc7\u591a\u4e2a\u63d0\u6848\u4e0d\u8fdd\u80cc\u7ea6\u675f2\u3002\u4e8e\u662f\u53ef\u4ee5\u4ea7\u751f\u7ea6\u675f P2\uff1a<\/p>\n
    P2\uff1a\u4e00\u65e6\u4e00\u4e2a value \u88ab\u6279\u51c6(chosen)\uff0c\u90a3\u4e48\u4e4b\u540e\u6279\u51c6(chosen)\u7684 value \u5fc5\u987b\u548c\u8fd9\u4e2a value \u4e00\u6837\u3002<\/pre>\n
    \u6ce8:\u901a\u8fc7\u67d0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u4e3a\u6bcf\u4e2a\u63d0\u6848\u5206\u914d\u4e00\u4e2a\u7f16\u53f7\uff0c\u5728\u63d0\u6848\u4e4b\u95f4\u5efa\u7acb\u4e00\u4e2a\u5168\u5e8f\u5173\u7cfb\uff0c\u540e\u63d0\u51fa\u7684\u63d0\u6848\u7f16\u53f7\u5927\u3002<\/p>\n
    \u5982\u679c P1 \u548c P2 \u90fd\u80fd\u591f\u4fdd\u8bc1\uff0c\u90a3\u4e48\u7ea6\u675f2\u5c31\u80fd\u591f\u4fdd\u8bc1\u3002<\/p>\n
    \u6279\u51c6\u4e00\u4e2avalue\u610f\u5473\u7740\u591a\u4e2aacceptor\u901a\u8fc7(accept)\u4e86\u8be5value. \u56e0\u6b64,\u53ef\u4ee5\u5bf9P2 \u8fdb\u884c\u52a0\u5f3a\uff1a<\/p>\n
    P2a\uff1a\u4e00\u65e6\u4e00\u4e2a value v \u88ab\u6279\u51c6(chosen)\uff0c\u90a3\u4e48\u4e4b\u540e\u4efb\u4f55 acceptor \u518d\u901a\u8fc7(accept)\u7684 value \u5fc5\u987b\u662f v\u3002<\/pre>\n
    \u7531\u4e8e\u901a\u4fe1\u662f\u5f02\u6b65\u7684\uff0cP2a \u548c P1 \u4f1a\u53d1\u751f\u51b2\u7a81\u3002\u5982\u679c\u4e00\u4e2a value \u901a\u8fc7\u540e\uff0c\u4e00\u4e2a proposer \u548c\u4e00\u4e2a acceptor \u4ece\u4f11\u7720\u4e2d\u82cf\u9192\uff0c\u524d\u8005\u63d0\u51fa\u4e00\u4e2a\u65b0\u7684 value\uff0c\u6839\u636e P1\uff0c\u540e\u8005\u5e94\u5f53\u6279\u51c6\uff1b\u6839\u636e P2a\uff0c\u5219\u4e0d\u5e94\u5f53\u6279\u51c6\u3002\u4e8e\u662f\u9700\u8981\u5bf9 proposer \u7684\u884c\u4e3a\u8fdb\u884c\u7ea6\u675f\uff1a<\/p>\n
    P2b\uff1a\u4e00\u65e6\u4e00\u4e2a value v \u88ab\u6279\u51c6(chosen)\uff0c\u90a3\u4e48\u4ee5\u540e proposer \u63d0\u51fa\u7684\u65b0\u63d0\u6848\u5fc5\u987b\u5177\u6709 value v\u3002<\/pre>\n
    P2b \u8574\u6db5\u4e86 P2a\uff0c\u662f\u4e00\u4e2a\u66f4\u5f3a\u7684\u7ea6\u675f\u3002<\/p>\n
    \u4f46\u662f\u6839\u636e P2b \u96be\u4ee5\u63d0\u51fa\u5b9e\u73b0\u624b\u6bb5\u3002\u56e0\u6b64\u9700\u8981\u8fdb\u4e00\u6b65\u52a0\u5f3a P2b\u3002<\/p>\n
    \u5047\u8bbe\u4e00\u4e2a\u7f16\u53f7\u4e3a m \u7684 value v \u5df2\u7ecf\u83b7\u5f97\u6279\u51c6(chosen)\uff0c\u6765\u770b\u770b\u5728\u4ec0\u4e48\u60c5\u51b5\u4e0b\u5bf9\u4efb\u4f55\u7f16\u53f7\u4e3a n\uff08n>m\uff09\u7684\u63d0\u6848\u90fd\u542b\u6709 value v\u3002\u56e0\u4e3a m \u5df2\u7ecf\u83b7\u5f97\u6279\u51c6(chosen)\uff0c\u663e\u7136\u5b58\u5728\u4e00\u4e2a acceptors \u7684\u591a\u6570\u6d3e C\uff0c\u4ed6\u4eec\u90fd\u901a\u8fc7(accept)\u4e86 v\u3002\u8003\u8651\u5230\u4efb\u4f55\u591a\u6570\u6d3e\u90fd\u548c C \u5177\u6709\u81f3\u5c11\u4e00\u4e2a\u516c\u5171\u6210\u5458\uff0c\u53ef\u4ee5\u627e\u5230\u4e00\u4e2a\u8574\u6db5 P2b \u7684\u7ea6\u675f P2c\uff1a<\/p>\n
    P2c\uff1a\u5982\u679c\u4e00\u4e2a\u7f16\u53f7\u4e3a n \u7684\u63d0\u6848\u5177\u6709 value v\uff0c\u90a3\u4e48\u5b58\u5728\u4e00\u4e2a\u591a\u6570\u6d3e\uff0c\u8981\u4e48\u4ed6\u4eec\u4e2d\u6ca1\u6709\u4eba\u901a\u8fc7(accept)\u8fc7\u7f16\u53f7\u5c0f\u4e8e n \u7684\u4efb\u4f55\u63d0\u6848\uff0c\u8981\u4e48\u4ed6\u4eec\u8fdb\u884c\u7684\u6700\u8fd1\u4e00\u6b21\u6279\u51c6(chosen)\u5177\u6709 value v\u3002<\/pre>\n
    \u53ef\u4ee5\u7528\u6570\u5b66\u5f52\u7eb3\u6cd5\u8bc1 \u660e P2c \u8574\u6db5 P2b\uff1a\u5047\u8bbe\u5177\u6709 value v \u7684\u63d0\u6848 m \u83b7\u5f97\u901a\u8fc7\uff0c\u5f53 n=m+1 \u65f6\uff0c\u6839\u636e P2c\uff0c\u7531\u4e8e\u4efb\u4f55\u4e00\u4e2a\u591a\u6570\u6d3e\u4e2d\u81f3\u5c11\u6709\u4e00\u4e2a\u6279\u51c6\u4e86 m\uff0c\u56e0\u6b64\u63d0\u6848\u5177\u6709 value v\uff1b\u82e5 (m+1)..(n-1) \u6240\u6709\u63d0\u6848\u90fd\u5177\u6709 value v\uff0c\u6839\u636e P2c\uff0c\u82e5\u53cd\u8bbe\u65b0\u63d0\u6848 n \u4e0d\u5177\u6709 value v \u5219\u5b58\u5728\u4e00\u4e2a\u591a\u6570\u6d3e\uff0c\u4ed6\u4eec\u6ca1\u6709\u6279\u51c6\u8fc7 m..(n-1) \u4e2d\u7684\u4efb\u4f55\u63d0\u6848\u3002\u4f46\u662f\u6211\u4eec\u77e5\u9053\uff0c\u4ed6\u4eec\u4e2d\u81f3\u5c11\u6709\u4e00\u4e2a\u4eba\u6279\u51c6\u4e86 m\u3002\u4e8e\u662f\u6211\u4eec\u5bfc\u51fa\u4e86\u77db\u76fe\uff0c\u83b7\u5f97\u4e86\u8bc1\u660e\u3002<\/p>\n
    P2c \u662f\u53ef\u4ee5\u901a\u8fc7\u6d88\u606f\u4f20\u9012\u6a21\u578b\u5b9e\u73b0\u7684\u3002\u53e6\u5916\uff0c\u5f15\u5165\u4e86 P2c \u540e\uff0c\u89e3\u51b3\u4e86\u524d\u6587\u63d0\u5230\u7684 P1 \u4e0d\u5b8c\u5907\u7684\u95ee\u9898\u3002<\/p>\n
    \u7b97\u6cd5\u7684\u5185\u5bb9<\/h3>\n
    \u8981\u6ee1\u8db3 P2c \u7684\u7ea6\u675f\uff0cproposer \u63d0\u51fa\u4e00\u4e2a\u63d0\u6848\u524d\uff0c\u9996\u5148\u8981\u548c\u8db3\u4ee5\u5f62\u6210\u591a\u6570\u6d3e\u7684 acceptors \u8fdb\u884c\u901a\u4fe1\uff0c\u83b7\u5f97\u4ed6\u4eec\u8fdb\u884c\u7684\u6700\u8fd1\u4e00\u6b21\u6279\u51c6\u6d3b\u52a8\u7684\u7f16\u53f7\uff08prepare \u8fc7\u7a0b\uff09\uff0c\u4e4b\u540e\u6839\u636e\u56de\u6536\u7684\u4fe1\u606f\u51b3\u5b9a\u8fd9\u6b21\u63d0\u6848\u7684 value\uff0c\u5f62\u6210\u63d0\u6848\u5f00\u59cb\u6295\u7968\u3002\u5f53\u83b7\u5f97\u591a\u6570 acceptors \u6279\u51c6\u540e\uff0c\u63d0\u6848\u83b7\u5f97\u901a\u8fc7\uff0c\u7531 proposer \u5c06\u8fd9\u4e2a\u6d88\u606f\u544a\u77e5 learner\u3002\u8fd9\u4e2a\u7b80\u7565\u7684\u8fc7\u7a0b\u7ecf\u8fc7\u8fdb\u4e00\u6b65\u7ec6\u5316\u540e\u5c31\u5f62\u6210\u4e86 Paxos \u7b97\u6cd5\u3002<\/p>\n
    \u6bcf\u4e2a\u63d0\u6848\u9700\u8981\u6709\u4e0d\u540c\u7684\u7f16\u53f7\uff0c\u4e14\u7f16\u53f7\u95f4\u8981\u5b58\u5728\u504f\u5e8f\u5173\u7cfb\u3002\u53ef\u4ee5\u7528\u591a\u79cd\u65b9\u6cd5\u5b9e\u73b0\u8fd9\u4e00\u70b9\uff0c\u4f8b\u5982\u5c06\u5e8f\u6570\u548c proposer \u7684\u540d\u5b57\u62fc\u63a5\u8d77\u6765\u3002\u5982\u4f55\u505a\u5230\u8fd9\u4e00\u70b9\u4e0d\u5728 Paxos \u7b97\u6cd5\u8ba8\u8bba\u7684\u8303\u56f4\u4e4b\u5185\u3002<\/p>\n
    \u5982\u679c\u4e00\u4e2a acceptor \u5728 prepare \u8fc7\u7a0b\u4e2d\u56de\u7b54\u4e86\u4e00\u4e2a proposer \u9488\u5bf9”\u8349\u6848” n \u7684\u95ee\u9898\uff0c\u4f46\u662f\u5728\u5f00\u59cb\u5bf9 n \u8fdb\u884c\u6295\u7968\u524d\uff0c\u53c8\u6279\u51c6\u53e6\u4e00\u4e2a\u63d0\u6848\uff08\u4f8b\u5982 n-1\uff09\uff0c\u5982\u679c\u4e24\u4e2a\u63d0\u6848\u5177\u6709\u4e0d\u540c\u7684 value\uff0c\u8fd9\u4e2a\u6295\u7968\u5c31\u4f1a\u8fdd\u80cc P2c\u3002\u56e0\u6b64\u5728 prepare \u8fc7\u7a0b\u4e2d\uff0cacceptor \u8fdb\u884c\u7684\u56de\u7b54\u540c\u65f6\u4e5f\u5e94\u5305\u542b\u627f\u8bfa\uff1a\u4e0d\u4f1a\u518d\u6279\u51c6\u7f16\u53f7\u5c0f\u4e8e n \u7684\u63d0\u6848\u3002\u8fd9\u662f\u5bf9 P1 \u7684\u52a0\u5f3a\uff1a<\/p>\n
    P1a\uff1a\u5f53\u4e14\u4ec5\u5f53 acceptor \u6ca1\u6709\u6536\u5230\u7f16\u53f7\u5927\u4e8e n \u7684 prepare \u8bf7\u6c42\u65f6\uff0cacceptor \u6279\u51c6\u7f16\u53f7\u4e3a n \u7684\u63d0\u6848\u3002<\/pre>\n
    \u73b0\u5728\u5df2\u7ecf\u53ef\u4ee5\u63d0\u51fa\u5b8c\u6574\u7684\u7b97\u6cd5\u4e86\u3002<\/p>\n
    \u51b3\u8bae\u7684\u63d0\u51fa\u4e0e\u901a\u8fc7<\/h4>\n
    \u901a\u8fc7\u4e00\u4e2a\u51b3\u8bae\u5206\u4e3a\u4e24\u4e2a\u9636\u6bb5\uff1a<\/p>\n
      \n
    1. prepare \u9636\u6bb5\uff1a\n
        \n
      1. proposer \u9009\u62e9\u4e00\u4e2a\u63d0\u6848\u7f16\u53f7 n \u5e76\u5c06 prepare \u8bf7\u6c42\u53d1\u9001\u7ed9 acceptors \u4e2d\u7684\u4e00\u4e2a\u591a\u6570\u6d3e\uff1b<\/li>\n
      2. acceptor \u6536\u5230 prepare \u6d88\u606f\u540e\uff0c\u5982\u679c\u63d0\u6848\u7684\u7f16\u53f7\u5927\u4e8e\u5b83\u5df2\u7ecf\u56de\u590d\u7684\u6240\u6709 prepare \u6d88\u606f\uff0c\u5219 acceptor \u5c06\u81ea\u5df1\u4e0a\u6b21\u7684\u6279\u51c6\u56de\u590d\u7ed9 proposer\uff0c\u5e76\u627f\u8bfa\u4e0d\u518d\u6279\u51c6\u5c0f\u4e8e n \u7684\u63d0\u6848\uff1b<\/li>\n<\/ol>\n<\/li>\n
      3. \u6279\u51c6\u9636\u6bb5\uff1a\n
          \n
        1. \u5f53\u4e00\u4e2a proposor \u6536\u5230\u4e86\u591a\u6570 acceptors \u5bf9 prepare \u7684\u56de\u590d\u540e\uff0c\u5c31\u8fdb\u5165\u6279\u51c6\u9636\u6bb5\u3002\u5b83\u8981\u5411\u56de\u590d prepare \u8bf7\u6c42\u7684 acceptors \u53d1\u9001 accept \u8bf7\u6c42\uff0c\u5305\u62ec\u7f16\u53f7 n \u548c\u6839\u636e P2c \u51b3\u5b9a\u7684 value\uff08\u5982\u679c\u6839\u636e P2c \u6ca1\u6709\u51b3\u5b9a value\uff0c\u90a3\u4e48\u5b83\u53ef\u4ee5\u81ea\u7531\u51b3\u5b9a value\uff09\u3002<\/li>\n
        2. \u5728\u4e0d\u8fdd\u80cc\u81ea\u5df1\u5411\u5176\u4ed6 proposer \u7684\u627f\u8bfa\u7684\u524d\u63d0\u4e0b\uff0cacceptor \u6536\u5230 accept \u8bf7\u6c42\u540e\u5373\u6279\u51c6\u8fd9\u4e2a\u8bf7\u6c42\u3002<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n
          \u8fd9\u4e2a\u8fc7\u7a0b\u5728\u4efb\u4f55\u65f6\u5019\u4e2d\u65ad\u90fd\u53ef\u4ee5\u4fdd\u8bc1\u6b63\u786e\u6027\u3002\u4f8b\u5982\u5982\u679c\u4e00\u4e2a proposer \u53d1\u73b0\u5df2\u7ecf\u6709\u5176\u4ed6 proposers \u63d0\u51fa\u4e86\u7f16\u53f7\u66f4\u9ad8\u7684\u63d0\u6848\uff0c\u5219\u6709\u5fc5\u8981\u4e2d\u65ad\u8fd9\u4e2a\u8fc7\u7a0b\u3002\u56e0\u6b64\u4e3a\u4e86\u4f18\u5316\uff0c\u5728\u4e0a\u8ff0 prepare \u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c\u4e00\u4e2a acceptor \u53d1\u73b0\u5b58\u5728\u4e00\u4e2a\u66f4\u9ad8\u7f16\u53f7\u7684”\u8349\u6848”\uff0c\u5219\u9700\u8981\u901a\u77e5 proposer\uff0c\u63d0\u9192\u5176\u4e2d\u65ad\u8fd9\u6b21\u63d0\u6848\u3002<\/p>\n
          \u5b9e\u4f8b<\/h4>\n
          \u7528\u5b9e\u9645\u7684\u4f8b\u5b50\u6765\u66f4\u6e05\u6670\u5730\u63cf\u8ff0\u4e0a\u8ff0\u8fc7\u7a0b:<\/p>\n
          \u6709 A1, A2, A3, A4, A5 5\u4f4d\u8bae\u5458, \u5c31\u7a0e\u7387\u95ee\u9898\u8fdb\u884c\u51b3\u8bae. \u8bae\u5458 A1 \u51b3\u5b9a\u5c06\u7a0e\u7387\u5b9a\u4e3a 10%, \u56e0\u6b64\u5b83\u5411\u6240\u6709\u4eba\u53d1\u51fa\u4e00\u4e2a\u8349\u6848. \u8fd9\u4e2a\u8349\u6848\u7684\u5185\u5bb9\u662f:<\/p>\n
          \u73b0\u6709\u7684\u7a0e\u7387\u662f\u4ec0\u4e48? \u5982\u679c\u6ca1\u6709\u51b3\u5b9a, \u5219\u5efa\u8bae\u5c06\u5176\u5b9a\u4e3a 10%. \u65f6\u95f4: \u672c\u5c4a\u8bae\u4f1a\u7b2c3\u5e743\u670815\u65e5; \u63d0\u6848\u8005: A1<\/pre>\n
          \u5728\u6700\u7b80\u5355\u7684\u60c5\u51b5\u4e0b, \u6ca1\u6709\u4eba\u4e0e\u5176\u7ade\u4e89; \u4fe1\u606f\u80fd\u53ca\u65f6\u987a\u5229\u5730\u4f20\u8fbe\u5230\u5176\u5b83\u8bae\u5458\u5904.<\/p>\n
          \u4e8e\u662f, A2-A5 \u56de\u5e94:<\/p>\n
          \u6211\u5df2\u6536\u5230\u4f60\u7684\u63d0\u6848, \u7b49\u5f85\u6700\u7ec8\u6279\u51c6<\/pre>\n
          \u800c A1 \u5728\u6536\u52302\u4efd\u56de\u590d\u540e\u5c31\u53d1\u5e03\u6700\u7ec8\u51b3\u8bae:<\/p>\n
          \u7a0e\u7387\u5df2\u5b9a\u4e3a 10%, \u65b0\u7684\u63d0\u6848\u4e0d\u5f97\u518d\u8ba8\u8bba\u672c\u95ee\u9898.<\/pre>\n
          \u8fd9\u5b9e\u9645\u4e0a\u9000\u5316\u4e3a\u4e8c\u6bb5\u63d0\u4ea4\u534f\u8bae.<\/p>\n
          \u73b0\u5728\u6211\u4eec\u5047\u8bbe\u5728 A1 \u63d0\u51fa\u63d0\u6848\u7684\u540c\u65f6, A5 \u51b3\u5b9a\u5c06\u7a0e\u7387\u5b9a\u4e3a 20%:<\/p>\n
          \u73b0\u6709\u7684\u7a0e\u7387\u662f\u4ec0\u4e48? \u5982\u679c\u6ca1\u6709\u51b3\u5b9a, \u5219\u5efa\u8bae\u5c06\u5176\u5b9a\u4e3a 20%. \u65f6\u95f4: \u672c\u5c4a\u8bae\u4f1a\u7b2c3\u5e743\u670815\u65e5; \u63d0\u6848\u8005: A5<\/pre>\n
          \u8349\u6848\u8981\u901a\u8fc7\u4f8d\u4ece\u9001\u5230\u5176\u5b83\u8bae\u5458\u7684\u6848\u5934. A1 \u7684\u8349\u6848\u5c06\u75315\u4f4d\u4f8d\u4ece\u9001\u5230 A2-A5 \u90a3\u91cc. \u73b0\u5728, \u8d1f\u8d23 A2 \u548c A3 \u7684\u4f8d\u4ece\u5c06\u8349\u6848\u987a\u5229\u9001\u8fbe, \u8d1f\u8d23 A4 \u548c A5 \u7684\u4f8d\u4ece\u5219\u4e0d\u4e0a\u73ed. A5 \u7684\u8349\u6848\u5219\u987a\u5229\u7684\u9001\u81f3 A3 \u548c A4 \u624b\u4e2d.<\/p>\n
          \u73b0\u5728, A1, A2, A3 \u6536\u5230\u4e86 A1 \u7684\u63d0\u6848; A3, A4, A5 \u6536\u5230\u4e86 A5 \u7684\u63d0\u6848. \u6309\u7167\u534f\u8bae, A1, A2, A4, A5 \u5c06\u63a5\u53d7\u4ed6\u4eec\u6536\u5230\u7684\u63d0\u6848, \u4f8d\u4ece\u5c06\u62ff\u7740<\/p>\n
          \u6211\u5df2\u6536\u5230\u4f60\u7684\u63d0\u6848, \u7b49\u5f85\u6700\u7ec8\u6279\u51c6<\/pre>\n
          \u7684\u56de\u590d\u56de\u5230\u63d0\u6848\u8005\u90a3\u91cc.<\/p>\n
          \u800c A3 \u7684\u884c\u4e3a\u5c06\u51b3\u5b9a\u6279\u51c6\u54ea\u4e00\u4e2a.<\/p>\n
          \u60c5\u51b5\u4e00<\/span><\/h5>\n
          \u5047\u8bbe A1 \u7684\u63d0\u6848\u5148\u9001\u5230 A3 \u5904, \u800c A5 \u7684\u4f8d\u4ece\u51b3\u5b9a\u653e\u5047\u4e00\u6bb5\u65f6\u95f4. \u4e8e\u662f A3 \u63a5\u53d7\u5e76\u6d3e\u51fa\u4e86\u4f8d\u4ece. A1 \u7b49\u5230\u4e86\u4e24\u4f4d\u4f8d\u4ece, \u52a0\u4e0a\u5b83\u81ea\u5df1\u5df2\u7ecf\u6784\u6210\u4e00\u4e2a\u591a\u6570\u6d3e, \u4e8e\u662f\u7a0e\u7387 10% \u5c06\u6210\u4e3a\u51b3\u8bae. A1 \u6d3e\u51fa\u4f8d\u4ece\u5c06\u51b3\u8bae\u9001\u5230\u6240\u6709\u8bae\u5458\u5904:<\/p>\n
          \u7a0e\u7387\u5df2\u5b9a\u4e3a 10%, \u65b0\u7684\u63d0\u6848\u4e0d\u5f97\u518d\u8ba8\u8bba\u672c\u95ee\u9898.<\/pre>\n
          A3 \u5728\u5f88\u4e45\u4ee5\u540e\u6536\u5230\u4e86\u6765\u81ea A5 \u7684\u63d0\u6848. \u7531\u4e8e\u7a0e\u7387\u95ee\u9898\u5df2\u7ecf\u8ba8\u8bba\u5b8c\u6bd5, \u4ed6\u51b3\u5b9a\u4e0d\u518d\u7406\u4f1a. \u4f46\u662f\u4ed6\u8981\u62b1\u6028\u4e00\u53e5:<\/p>\n
          \u7a0e\u7387\u5df2\u5728\u4e4b\u524d\u7684\u6295\u7968\u4e2d\u5b9a\u4e3a 10%, \u4f60\u4e0d\u8981\u518d\u6765\u70e6\u6211!<\/pre>\n
          \u8fd9\u4e2a\u56de\u590d\u5bf9 A5 \u53ef\u80fd\u6709\u5e2e\u52a9, \u56e0\u4e3a A5 \u53ef\u80fd\u56e0\u4e3a\u67d0\u79cd\u539f\u56e0\u5f88\u4e45\u65e0\u6cd5\u4e0e\u4e0e\u5916\u754c\u8054\u7cfb\u4e86. \u5f53\u7136\u66f4\u53ef\u80fd\u5bf9 A5 \u6ca1\u6709\u4efb\u4f55\u4f5c\u7528, \u56e0\u4e3a A5 \u53ef\u80fd\u5df2\u7ecf\u4ece A1 \u5904\u83b7\u5f97\u4e86\u521a\u624d\u7684\u51b3\u8bae.<\/p>\n
          \u60c5\u51b5\u4e8c<\/span><\/h5>\n
          \u4f9d\u7136\u5047\u8bbe A1 \u7684\u63d0\u6848\u5148\u9001\u5230 A3 \u5904, \u4f46\u662f\u8fd9\u6b21 A5 \u7684\u4f8d\u4ece\u4e0d\u662f\u653e\u5047\u4e86, \u53ea\u662f\u4e2d\u9014\u803d\u6401\u4e86\u4e00\u4f1a. \u8fd9\u6b21, A3 \u4f9d\u7136\u4f1a\u5c06”\u63a5\u53d7”\u56de\u590d\u7ed9 A1. \u4f46\u662f\u5728\u51b3\u8bae\u6210\u578b\u4e4b\u524d\u5b83\u53c8\u6536\u5230\u4e86 A5 \u7684\u63d0\u6848. \u8fd9\u65f6\u534f\u8bae\u6709\u4e24\u79cd\u5904\u7406\u65b9\u5f0f:<\/p>\n
          1. \u5982\u679c A5 \u7684\u63d0\u6848\u66f4\u65e9, \u6309\u7167\u4f20\u7edf\u5e94\u8be5\u7531\u8f83\u65e9\u7684\u63d0\u6848\u8005\u4e3b\u6301\u6295\u7968. \u73b0\u5728\u770b\u6765\u4e24\u4efd\u63d0\u6848\u7684\u65f6\u95f4\u4e00\u6837(\u672c\u5c4a\u8bae\u4f1a\u7b2c3\u5e743\u670815\u65e5). \u4f46\u662f A5 \u662f\u4e2a\u60f9\u4e0d\u8d77\u7684\u5927\u4eba\u7269. \u4e8e\u662f A3 \u56de\u590d:<\/p>\n
          \u6211\u5df2\u6536\u5230\u60a8\u7684\u63d0\u6848, \u7b49\u5f85\u6700\u7ec8\u6279\u51c6, \u4f46\u662f\u60a8\u4e4b\u524d\u6709\u4eba\u63d0\u51fa\u5c06\u7a0e\u7387\u5b9a\u4e3a 10%, \u8bf7\u660e\u5bdf.<\/pre>\n
          \u4e8e\u662f, A1 \u548c A5 \u90fd\u6536\u5230\u4e86\u8db3\u591f\u7684\u56de\u590d. \u8fd9\u65f6\u5173\u4e8e\u7a0e\u7387\u95ee\u9898\u5c31\u6709\u4e24\u4e2a\u63d0\u6848\u5728\u540c\u65f6\u8fdb\u884c. \u4f46\u662f A5 \u77e5\u9053\u4e4b\u524d\u6709\u4eba\u63d0\u51fa\u7a0e\u7387\u4e3a 10%. \u4e8e\u662f A1 \u548c A5 \u90fd\u4f1a\u5411\u5168\u4f53\u8bae\u5458\u5e7f\u64ad:<\/p>\n
           \u7a0e\u7387\u5df2\u5b9a\u4e3a 10%, \u65b0\u7684\u63d0\u6848\u4e0d\u5f97\u518d\u8ba8\u8bba\u672c\u95ee\u9898.<\/pre>\n
          \u4e00\u81f4\u6027\u5f97\u5230\u4e86\u4fdd\u8bc1.<\/p>\n
          2. A5 \u662f\u4e2a\u65e0\u8db3\u8f7b\u91cd\u7684\u5c0f\u4eba\u7269. \u8fd9\u65f6 A3 \u4e0d\u518d\u7406\u4f1a\u4ed6, A1 \u4e0d\u4e45\u540e\u5c31\u4f1a\u5e7f\u64ad\u7a0e\u7387\u5b9a\u4e3a 10%.<\/p>\n
          \u60c5\u51b5\u4e09<\/span><\/h5>\n
          \u5728\u8fd9\u4e2a\u60c5\u51b5\u4e2d, \u6211\u4eec\u5c06\u770b\u89c1, \u6839\u636e\u63d0\u6848\u7684\u65f6\u95f4\u53ca\u63d0\u6848\u8005\u7684\u6743\u52bf\u51b3\u5b9a\u662f\u5426\u5e94\u7b54\u662f\u6709\u610f\u4e49\u7684. \u5728\u8fd9\u91cc, \u65f6\u95f4\u548c\u63d0\u6848\u8005\u7684\u6743\u52bf\u5c31\u6784\u6210\u4e86\u7ed9\u63d0\u6848\u7f16\u53f7\u7684\u4f9d\u636e. \u8fd9\u6837\u7684\u7f16\u53f7\u7b26\u5408”\u4efb\u4f55\u4e24\u4e2a\u63d0\u6848\u4e4b\u95f4\u6784\u6210\u504f\u5e8f”\u7684\u8981\u6c42.<\/p>\n
          A1 \u548c A5 \u540c\u6837\u63d0\u51fa\u4e0a\u8ff0\u63d0\u6848, \u8fd9\u65f6 A1 \u53ef\u4ee5\u6b63\u5e38\u8054\u7cfb A2 \u548c A3; A5 \u4e5f\u53ef\u4ee5\u6b63\u5e38\u8054\u7cfb\u8fd9\u4e24\u4e2a\u4eba. \u8fd9\u6b21 A2 \u5148\u6536\u5230 A1 \u7684\u63d0\u6848; A3 \u5219\u5148\u6536\u5230 A5 \u7684\u63d0\u6848. A5 \u66f4\u6709\u6743\u52bf.<\/p>\n
          \u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b, \u5df2\u7ecf\u56de\u7b54 A1 \u7684 A2 \u53d1\u73b0\u6709\u6bd4 A1 \u66f4\u6709\u6743\u52bf\u7684 A5 \u63d0\u51fa\u4e86\u7a0e\u7387 20% \u7684\u65b0\u63d0\u6848, \u4e8e\u662f\u56de\u590d A5 \u8bf4:<\/p>\n
          \u6211\u5df2\u6536\u5230\u60a8\u7684\u63d0\u6848, \u7b49\u5f85\u6700\u7ec8\u6279\u51c6, \u4f46\u662f\u60a8\u4e4b\u524d\u6709\u4eba\u63d0\u51fa\u5c06\u7a0e\u7387\u5b9a\u4e3a 10%, \u8bf7\u660e\u5bdf.<\/pre>\n
          \u800c\u56de\u590d\u4e86 A5 \u7684 A3 \u53d1\u73b0\u65b0\u7684\u63d0\u6848\u8005\u662f\u4e2a\u5c0f\u4eba\u7269, \u4e0d\u4e88\u7406\u4f1a.<\/p>\n
          \u4e8e\u662f A5 \u5c06\u4e3b\u6301\u6295\u7968, \u4f46\u51b3\u8bae\u7684\u5185\u5bb9\u5c06\u662f A1 \u63d0\u51fa\u7684\u7a0e\u7387 10%.<\/p>\n
          \u5982\u679c A3 \u51b3\u5b9a\u5e73\u7b49\u5730\u5bf9\u5f85\u6bcf\u4e00\u4f4d\u8bae\u5458, \u5bf9 A1 \u505a\u51fa”\u4f60\u4e4b\u524d\u6709\u4eba\u63d0\u51fa\u5c06\u7a0e\u7387\u5b9a\u4e3a 20%” \u7684\u56de\u590d, \u5219\u5c06\u9020\u6210\u6df7\u4e71. \u8fd9\u79cd\u60c5\u51b5\u4e0b A1 \u548c A5 \u90fd\u5c06\u8bd5\u56fe\u4e3b\u6301\u6295\u7968, \u4f46\u662f\u8fd9\u6b21\u4e24\u4efd\u63d0\u6848\u7684\u5185\u5bb9\u4e0d\u540c.<\/p>\n
          \u8fd9\u79cd\u60c5\u51b5\u4e0b, A3 \u82e5\u5bf9 A1 \u8fdb\u884c\u56de\u590d, \u53ea\u80fd\u8bf4:<\/p>\n
          \u6709\u66f4\u5927\u7684\u4eba\u7269\u5173\u6ce8\u6b64\u4e8b, \u8bf7\u7b49\u5f85\u4ed6\u505a\u51fa\u51b3\u5b9a.<\/pre>\n
          \u53e6\u5916, \u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b, A4 \u4e0e\u5916\u754c\u5931\u53bb\u4e86\u8054\u7cfb. \u7b49\u5230\u4ed6\u6062\u590d\u8054\u7cfb, \u5e76\u9700\u8981\u5f97\u77e5\u7a0e\u7387\u60c5\u51b5\u65f6, \u4ed6(\u5728\u6700\u7b80\u5355\u7684\u534f\u8bae\u4e2d)\u5c06\u63d0\u51fa\u4e00\u4e2a\u63d0\u6848:<\/p>\n
          \u73b0\u6709\u7684\u7a0e\u7387\u662f\u4ec0\u4e48? \u5982\u679c\u6ca1\u6709\u51b3\u5b9a, \u5219\u5efa\u8bae\u5c06\u5176\u5b9a\u4e3a 15%. \u65f6\u95f4: \u672c\u5c4a\u8bae\u4f1a\u7b2c3\u5e744\u67081\u65e5; \u63d0\u6848\u8005: A4<\/pre>\n
          \u8fd9\u65f6, (\u5728\u6700\u7b80\u5355\u7684\u534f\u8bae\u4e2d)\u5176\u4ed6\u8bae\u5458\u5c06\u4f1a\u56de\u590d:<\/p>\n
          \u7a0e\u7387\u5df2\u5728\u4e4b\u524d\u7684\u6295\u7968\u4e2d\u5b9a\u4e3a 10%, \u4f60\u4e0d\u8981\u518d\u6765\u70e6\u6211!<\/pre>\n
          \u51b3\u8bae\u7684\u53d1\u5e03<\/h4>\n
          \u4e00\u4e2a\u663e\u800c\u6613\u89c1\u7684\u65b9\u6cd5\u662f\u5f53 acceptors \u6279\u51c6\u4e00\u4e2a value \u65f6\uff0c\u5c06\u8fd9\u4e2a\u6d88\u606f\u53d1\u9001\u7ed9\u6240\u6709 learner\u3002\u4f46\u662f\u8fd9\u4e2a\u65b9\u6cd5\u4f1a\u5bfc\u81f4\u6d88\u606f\u91cf\u8fc7\u5927\u3002<\/p>\n
          \u7531\u4e8e\u5047\u8bbe\u6ca1\u6709 Byzantine failures\uff0clearners \u53ef\u4ee5\u901a\u8fc7\u522b\u7684 learners \u83b7\u53d6\u5df2\u7ecf\u901a\u8fc7\u7684\u51b3\u8bae\u3002\u56e0\u6b64 acceptors \u53ea\u9700\u5c06\u6279\u51c6\u7684\u6d88\u606f\u53d1\u9001\u7ed9\u6307\u5b9a\u7684\u67d0\u4e00\u4e2a learner\uff0c\u5176\u4ed6 learners \u5411\u5b83\u8be2\u95ee\u5df2\u7ecf\u901a\u8fc7\u7684\u51b3\u8bae\u3002\u8fd9\u4e2a\u65b9\u6cd5\u964d\u4f4e\u4e86\u6d88\u606f\u91cf\uff0c\u4f46\u662f\u6307\u5b9a learner \u5931\u6548\u5c06\u5f15\u8d77\u7cfb\u7edf\u5931\u6548\u3002<\/p>\n
          \u56e0\u6b64 acceptors \u9700\u8981\u5c06 accept \u6d88\u606f\u53d1\u9001\u7ed9 learners \u7684\u4e00\u4e2a\u5b50\u96c6\uff0c\u7136\u540e\u7531\u8fd9\u4e9b learners \u53bb\u901a\u77e5\u6240\u6709 learners\u3002<\/p>\n
          \u4f46\u662f\u7531\u4e8e\u6d88\u606f\u4f20\u9012\u7684\u4e0d\u786e\u5b9a\u6027\uff0c\u53ef\u80fd\u4f1a\u6ca1\u6709\u4efb\u4f55 learner \u83b7\u5f97\u4e86\u51b3\u8bae\u6279\u51c6\u7684\u6d88\u606f\u3002\u5f53 learners \u9700\u8981\u4e86\u89e3\u51b3\u8bae\u901a\u8fc7\u60c5\u51b5\u65f6\uff0c\u53ef\u4ee5\u8ba9\u4e00\u4e2a proposer \u91cd\u65b0\u8fdb\u884c\u4e00\u6b21\u63d0\u6848\u3002\u6ce8\u610f\u4e00\u4e2a learner \u53ef\u80fd\u517c\u4efb proposer\u3002<\/p>\n
          Progress \u7684\u4fdd\u8bc1<\/h4>\n
          \u6839\u636e\u4e0a\u8ff0\u8fc7\u7a0b\u5f53\u4e00\u4e2a proposer \u53d1\u73b0\u5b58\u5728\u7f16\u53f7\u66f4\u5927\u7684\u63d0\u6848\u65f6\u5c06\u7ec8\u6b62\u63d0\u6848\u3002\u8fd9\u610f\u5473\u8fd9\u63d0\u51fa\u4e00\u4e2a\u7f16\u53f7\u66f4\u5927\u7684\u63d0\u6848\u4f1a\u7ec8\u6b62\u4e4b\u524d\u7684\u63d0\u6848\u8fc7\u7a0b\u3002\u5982\u679c\u4e24\u4e2a proposer \u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u90fd\u8f6c\u800c\u63d0\u51fa\u4e00\u4e2a\u7f16\u53f7\u66f4\u5927\u7684\u63d0\u6848\uff0c\u5c31\u53ef\u80fd\u9677\u5165\u6d3b\u9501\uff0c\u8fdd\u80cc\u4e86 Progress \u7684\u8981\u6c42\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u7684\u89e3\u51b3\u65b9\u6848\u662f\u9009\u4e3e\u51fa\u4e00\u4e2a president\uff0c\u4ec5\u5141\u8bb8 president \u63d0\u51fa\u63d0\u6848\u3002\u4f46\u662f\u7531\u4e8e\u6d88\u606f\u4f20\u9012\u7684\u4e0d\u786e\u5b9a\u6027\uff0c\u53ef\u80fd\u6709\u591a\u4e2a proposer \u81ea\u8ba4\u4e3a\u81ea\u5df1\u5df2\u7ecf\u6210\u4e3a president\u3002Lamport \u5728The Part-Time Parliament\u4e00\u6587\u4e2d\u63cf\u8ff0\u5e76\u89e3\u51b3\u4e86\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n
          \u5176\u4ed6<\/h2>\n
          \u5fae\u8f6f\u516c\u53f8\u4e3a\u7b80\u5316\u7684 Paxos \u7b97\u6cd5\u7533\u8bf7\u4e86\u4e13\u5229\u3002\u4f46\u4e13\u5229\u4e2d\u516c\u5f00\u7684\u6280\u672f\u548c\u672c\u6587\u6240\u63cf\u8ff0\u7684\u4e0d\u5c3d\u76f8\u540c\u3002<\/p>\n
          \u8c37\u6b4c\u516c\u53f8\uff08Google \u516c\u53f8\uff09\u5728\u5176\u5206\u5e03\u5f0f\u9501\u670d\u52a1\uff08Chubby lock\uff09\u4e2d\u5e94\u7528\u4e86Paxos\u7b97\u6cd5\u3002Chubby lock \u5e94\u7528\u4e8e\u5927\u8868\uff08Bigtable\uff09\uff0c\u540e\u8005\u5728\u8c37\u6b4c\u516c\u53f8\u6240\u63d0\u4f9b\u7684\u5404\u9879\u670d\u52a1\u4e2d\u5f97\u5230\u4e86\u5e7f\u6cdb\u7684\u5e94\u7528\u3002<\/div>\n","protected":false},"excerpt":{"rendered":"
          \u8fc1\u79fb\u81eahttp:\/\/adaishu.blog.163.com\/blog\/static\/175831286201 …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[63],"tags":[66,65,64],"class_list":["post-85","post","type-post","status-publish","format-standard","hentry","category-63","tag-bigtable","tag-paxos","tag-64"],"views":1653,"_links":{"self":[{"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/85","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=85"}],"version-history":[{"count":1,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/85\/revisions"}],"predecessor-version":[{"id":86,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/85\/revisions\/86"}],"wp:attachment":[{"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=85"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=85"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=85"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}