{"id":798,"date":"2016-05-04T10:45:00","date_gmt":"2016-05-04T02:45:00","guid":{"rendered":"https:\/\/yanjingang.com\/blog\/?p=798"},"modified":"2016-05-04T10:45:00","modified_gmt":"2016-05-04T02:45:00","slug":"%e4%b8%80%e5%90%8d%e5%88%86%e5%b8%83%e5%bc%8f%e5%ad%98%e5%82%a8%e5%b7%a5%e7%a8%8b%e5%b8%88%e7%9a%84%e6%8a%80%e8%83%bd%e6%a0%91%e6%98%af%e6%80%8e%e6%a0%b7%e7%9a%84%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/yanjingang.com\/blog\/?p=798","title":{"rendered":"\u4e00\u540d\u5206\u5e03\u5f0f\u5b58\u50a8\u5de5\u7a0b\u5e08\u7684\u6280\u80fd\u6811\u662f\u600e\u6837\u7684\uff1f"},"content":{"rendered":"
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\n1. \u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\uff0c\u6bd4\u5982HDFS\uff0cCeph\u3002\u8fd9\u4e9b\u4e13\u95e8\u5b58\u5927\u6587\u4ef6\u3002\u7279\u522b\u662fHDFS\u5927\u516c\u53f8\u6807\u914d\uff0c\u4e0d\u591a\u8bf4\u3002<\/p>\n

2. \u5bf9\u8c61\u5b58\u50a8\uff0c\u5178\u578b\u7684\u5c31\u662fAmazon S3\uff0c\u8fd9\u79cd\u7cfb\u7edf\u5f88\u591a\u516c\u53f8\u81ea\u5df1\u9020\u7ed9\u516c\u53f8\u5185\u90e8\u7528\uff0c\u5b58\u56fe\u7247\u7b49\u5c0f\u6587\u4ef6\uff0c\u63a5\u53e3\u4e00\u822c\u4e0d\u4f1a\u517c\u5bb9Amazon S3\uff0c\u56e0\u4e3a\u4e0d\u9700\u8981\uff0c\u6bd4\u5982\u6dd8\u5b9d\u7684TFS\uff0c\u57fa\u672c\u601d\u8def\u5c31\u662f\u5c06\u591a\u4e2a\u5c0f\u6587\u4ef6\u5408\u5e76\u6210\u5927\u6587\u4ef6\u5b58\u50a8\uff0c\u7ecf\u5178\u8bba\u6587FB\u7684HayStack\u3002\u8fd9\u79cd\u7cfb\u7edf\u4e00\u822c\u8bfb\u591a\u5199\u5c11\uff0c\u4e0d\u9700\u8981\u4fee\u6539\uff0c\u5f88\u5c11\u5220\u9664\uff0c\u4e00\u81f4\u6027\u4e5f\u6ca1\u90a3\u4e48\u5f3a\uff0c\u7cfb\u7edf\u76f8\u5bf9\u597d\u505a\u3002\u57fa\u672c\u4e0aHDFS+HBase\u5c31\u80fd\u641e\u5b9a\u4e00\u4e2a\u8fd9\u79cd\u7cfb\u7edf\uff0cHBase\u5b58\u5143\u6570\u636e\uff0c\u5229\u7528HDFS\u7684Append\u529f\u80fd\u5c06\u5c0f\u6587\u4ef6\u5408\u5e76\u6210\u5927\u6587\u4ef6\u3002<\/p>\n

3. \u5206\u5e03\u5f0f\u6570\u636e\u5e93\u3002\u5bf9\u5916\u6570\u636e\u6a21\u578b\u662f\u4e00\u5f20\u8868\u683c(\u5e95\u5c42\u53ef\u4ee5\u662f\u4e00\u4e2a\u5206\u5e03\u5f0fKV)\u3002\u6bd4\u5982HBase(BigTable)\uff0c\u963f\u91cc\u7684OceanBase\uff0c\u56fd\u5916\u7684cockroachdb(GitHub – cockroachdb\/cockroach: A Scalable, Survivable, Strongly-Consistent SQL Database<\/a>\uff0c\u57fa\u672c\u4e0a\u4f60\u80fd\u770b\u61c2\u7406\u89e3\u5b83\u7684\u8bbe\u8ba1\u6587\u6863\uff0c\u6c34\u5e73\u5c31\u5f88\u4e0d\u9519\u4e86)\u8fd8\u6709\u524d\u540c\u4e8b\u7684\u521b\u4e1a\u9879\u76eeTIKV(https:\/\/<\/span>github.com\/pingcap\/tikv<\/span><\/a> \u60f3\u505a\u6570\u636e\u5e93\u7684\u53ef\u4ee5\u6295\u7b80\u5386)\u3002\u8fd9\u4e9b\u90fd\u662f\u5f3a\u4e00\u81f4\u6027OLTP\u6570\u636e\u5e93\uff0c\u9664\u4e86HBase\uff0c\u5176\u4ed6\u4e24\u4e2a\u90fd\u652f\u6301\u5206\u5e03\u5f0f\u4e8b\u52a1\u3002\u5206\u5e03\u5f0f\u4e8b\u52a1\u548c\u591a\u526f\u672c\u5f3a\u4e00\u81f4\u6027\u90fd\u662f\u6bd4\u8f83\u96be\u505a\u7684\u4e8b\u60c5\uff0c\u5206\u5e03\u5f0f\u4e8b\u52a1\u57fa\u672c\u90fd\u662f\u4e24\u9636\u6bb5\u63d0\u4ea4\uff0c\u5b9e\u73b0\u8fc7\u7a0b\u4e2d\u9700\u8981\u5904\u7406\u534f\u8c03\u8005\/\u53c2\u4e0e\u8005\u6545\u969c\u95ee\u9898\uff0c\u8fd9\u5c31\u9700\u8981\u534f\u8c03\u8005\/\u53c2\u4e0e\u8005\u591a\u526f\u672c\u3002\u540c\u65f6\uff0c\u4e3a\u4e86\u9ad8\u53ef\u7528\uff0c\u5bb9\u9519\uff0c\u6bcf\u4efd\u6570\u636e\u4e5f\u8981\u591a\u526f\u672c\u3002\u5982\u4f55\u7ef4\u62a4\u526f\u672c\u7684\u4e00\u81f4\u6027\u53c8\u662f\u4e2a\u5927\u95ee\u9898\u3002OceanBase\u4f7f\u7528Multi-Paxos\uff0ccorckroachdb\u4f7f\u7528Raft\uff0c https:\/\/<\/span>ramcloud.stanford.edu\/~<\/span>ongaro\/userstudy\/<\/span><\/a>\uff0c \u76ee\u524d\u6211\u770b\u5230\u8fc7\u7684\u6700\u597d\u7684\u5c06Multi-Paxos\u548cRaft\u7684\u8d44\u6599\u3002Paxos\u7684\u8bbe\u8ba1\u4ec5\u4ec5\u662f\u8003\u8651\u5bf9\u4e00\u4e2a\u503c\u8fbe\u6210\u4e00\u81f4\uff0cPaxos\u534f\u8bae\u672c\u8eab\u6ca1\u6709\u8003\u8651\u5de5\u7a0b\u4e2d\u7684\u5e94\u7528\uff0c\u6545\u6ca1\u6709\u8003\u8651\u65e5\u5fd7\u540c\u6b65\u3002\u6240\u4ee5\u6709\u4e86Multi-Paxos\u3002Raft\u51fa\u73b0\u7684\u665a\uff0c\u628a\u5de5\u7a0b\u4e2d\u7684\u95ee\u9898\u8003\u8651\u5728\u5185\uff0c\u5176\u4e2d\u7684\u9650\u5236\u5c31\u662f\u65e5\u5fd7\u540c\u6b65\u8981\u6c42\u987a\u5e8f\u3002\u800cMulti-Paxos\u6ca1\u8fd9\u4e2a\u8981\u6c42\uff0c\u76f8\u5e94\u7684\u5b9e\u73b0\u4e5f\u66f4\u590d\u6742\u3002\u7531\u4e8ePaxos\u5bf9\u4e00\u4e2a\u503c\u8fbe\u6210\u4e00\u81f4\u9700\u8981\u4e24\u8f6e\uff0c\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd\uff0c\u5f15\u5165\u4e3b\uff0c\u53ea\u6709\u4e3b\u80fdpropose\u65e5\u5fd7\uff0c\u8fd9\u6837Paxos\u7b2c\u4e00\u8f6e\u5c31\u4e0d\u9700\u8981\u3002\u8fd9\u5c31\u9700\u8981\u9009\u4e3b\u7b97\u6cd5\uff0c\u9009\u4e3b\u7b97\u6cd5\u6709\u5f88\u591a\uff0c\u6bd4\u5982\u57fa\u4e8eIP\uff0c\u6216\u8005\u76f4\u63a5\u57fa\u4e8ePaxos\u90fd\u884c\u3002\u7136\u540e\u5c31\u662f\u6210\u5458\u53d8\u66f4\uff0c\u5373\u6269\u5bb9\u7f29\u5bb9\u95ee\u9898\u3002Raft\u518d\u4e00\u6b21\u8003\u8651\u5728\u5185\u3002\u5176\u5b9e\u8fd9\u91cc\u5173\u4e8e\u4e00\u81f4\u6027\u76f4\u63a5\u5c31\u8bf4\u4e86\u9ad8\u7ea7\u7684\u534f\u8bae\uff0c\u8fd9\u4e9b\u9ad8\u7ea7\u534f\u8bae\u80fd\u591f\u5728\u591a\u70b9\u5199\u7684\u60c5\u51b5\u4e0b\u4e5f\u80fd\u4fdd\u8bc1\u4e00\u81f4\u6027\u3002\u76f8\u5bf9\u6765\u8bf4”\u4f4e\u7ea7”\u7684\u505a\u6cd5\u5c31\u7c7b\u4f3c\u4e8eNWR\uff0c\u5199\u6210\u529f\u9700\u8981\u5199majority\u6210\u529f\uff0c\u8bfb\u4e5f\u9700\u8981\u8bfbmajority\uff0c\u5b83\u5c31\u4e0d\u80fd\u5f88\u597d\u7684\u5904\u7406\u591a\u70b9\u5199\u5bfc\u81f4\u7684\u4e00\u81f4\u6027\u95ee\u9898\uff0c\u9700\u8981\u5e94\u7528\u7a0b\u5e8f\u81ea\u5df1\u9009\u62e9\uff0c\u4ee3\u8868Dynamo, \u8fd9\u6709\u8bbe\u8ba1\u5230Vector Clock\u7b49\u6280\u672f\u3002\u7136\u540e\u8003\u8651\u5230\u8d1f\u8f7d\u7b49\u539f\u56e0\uff0c\u8fd8\u9700\u8981\u5bf9tablet(range)\u8fdb\u884c\u5206\u88c2\u554a\u8fc1\u79fb\u554a\u7b49\u64cd\u4f5c\uff0c\u8fd9\u4e5f\u662f\u4e00\u4e2a\u70b9\uff0c\u5927\u90fd\u4f9d\u8d56\u5916\u90e8coordinator\u6765\u89e3\u51b3\uff0c\u6bd4\u5982ZooKeeper\uff0cetcd\u3002\u6700\u540e\u518d\u8bf4\u4e00\u4e0b\u65f6\u5e8f\u95ee\u9898\uff0c\u56e0\u4e3a\u662f\u5206\u5e03\u5f0f\u7cfb\u7edf\uff0c\u4e0d\u540c\u7684\u673a\u5668\u65f6\u949f\u4e0d\u53ef\u80fd\u4e00\u6837\uff0c\u6216\u591a\u6216\u5c11\u6709\u8bef\u5dee\uff0c\u8fd9\u5c31\u7ed9\u6570\u636e\u5e93\u7684\u5916\u90e8\u4e00\u81f4\u6027\u5e26\u6765\u4e86\u4e00\u4e9b\u6311\u6218\uff0c\u5b9e\u9645\u7684\u5de5\u7a0b\u505a\u6cd5\u4e00\u822c\u90fd\u662fNTP\u540c\u6b65\u554a\uff0c\u5f53\u7136Google\u7684Spanner\u6bd4\u8f83\u725b\u903c\uff0c\u4f7f\u7528\u786c\u4ef6\u5b9e\u73b0\u7684\u539f\u5b50\u949f\uff0capi\u53eb\u505aTrueTime\u3002\u8fd8\u6709\u66f4\u7406\u8bba\u4e00\u4e9b\u7684\u505a\u6cd5\u5c31\u662flogical clock\uff0c\u6298\u4e2d\u4e00\u70b9\u7684\u5c31\u662fHLC\uff0c\u4e00\u79cd\u903b\u8f91\u65f6\u949f\u7269\u7406\u65f6\u949f\u6df7\u5408\u7684\u65b9\u6848\u3002<\/p>\n

\u5bf9\u65b0\u624b\u6765\u8bf4\uff0c\u53ef\u4ee5\u5237MIT\u7684\u8fd9\u95e8\u8bfe\uff0chttp:\/\/<\/span>nil.csail.mit.edu\/6.824<\/span>\/2016\/schedule.html<\/span><\/a>
\n\u4f5c\u4e1a\u57fa\u4e8eGolang\uff0c\u5f00\u53d1\u6548\u7387\u9ad8\uff0c\u4ee5\u524d\u90fd\u662fC++\u3002
\n\u4e2d\u6587\u535a\u5ba2\u7684\u8bdd\u53ef\u4ee5\u770b emailed – \u535a\u5ba2\u56ed<\/a> \u4e0a\u9762\u63d0\u5230\u7684\u5f88\u591a\u6280\u672f\u535a\u5ba2\u4e2d\u90fd\u6709\u8bb2\u5230\u3002<\/div>\n

<\/div>\n<\/div>\n
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\u4f5c\u8005\uff1a\u5434\u955d
\n\u94fe\u63a5\uff1ahttps:\/\/www.zhihu.com\/question\/43687427\/answer\/96677826
\n\u6765\u6e90\uff1a\u77e5\u4e4e<\/div>\n","protected":false},"excerpt":{"rendered":"

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