{"id":600,"date":"2011-03-16T11:47:52","date_gmt":"2011-03-16T03:47:52","guid":{"rendered":"http:\/\/www.strongd.net\/?p=600"},"modified":"2011-03-16T11:47:52","modified_gmt":"2011-03-16T03:47:52","slug":"mongodb%e5%b0%8f%e7%bb%93","status":"publish","type":"post","link":"https:\/\/www.strongd.net\/?p=600","title":{"rendered":"mongodb\u5c0f\u7ed3"},"content":{"rendered":"

\u7528\u4e86\u4e00\u9635\u5b50mongodb\uff0c\u4f5c\u4e00\u4e9b\u5c0f\u7ed3\uff0c\u4f5c\u4e3a\u5c06\u6765\u7684\u53c2\u8003\u3002\u6309\u7167\u4ee5\u5f80\u7684\u4e60\u60ef\uff0c\u5148\u4f5c\u4e00\u4e2a\u603b\u89c8\uff0c\u7136\u540e\u518d\u6311\u51fa\u4e00\u4e9b\u81ea\u5df1\u6bd4\u8f83\u5173\u6ce8\u7684\u51e0\u4e2a\u70b9\uff0c\u4f5c\u4e3a\u73e0\u7391\uff0c\u52a0\u4ee5\u4e32\u8054\u9610\u8ff0\u3002<\/p>\n

mongodb\u7531C\uff0b\uff0b\u5199\u5c31\uff0c\u5176\u540d\u5b57\u6765\u81eahumongo<\/strong>us\u8fd9\u4e2a\u5355\u8bcd\u7684\u4e2d\u95f4\u90e8\u5206\uff0c\u4ece\u540d\u5b57\u53ef\u89c1\u5176\u91ce\u5fc3\u6240\u5728\u5c31\u662f\u6d77\u91cf\u6570\u636e\u7684\u5904\u7406\u3002\u5173\u4e8e\u5b83\u7684\u4e00\u4e2a\u6700\u7b80\u6d01\u63cf\u8ff0\u4e3a\uff1ascalable, high-performance, open source, schema-free, document-oriented database\u3002\u6211\u5bf9\u4e8e\u6587\u6863\u578b\u6570\u636e\u5e93\u6709\u4e00\u4e9b\u4e2a\u4eba\u7684\u504f\u597d\uff0c\u8fd9\u79cd\u504f\u597d\u662f\u4ece\u534a\u5e74\u524d\u7814\u7a76couchdb\u800c\u6765\u7684\uff0c\u56e0\u4e3a\u6211\u89c9\u5f97\u7528\u5b83\u6765\u63cf\u8ff0\u4e00\u4e2a\u5177\u6709\u4e2a\u6027\u5316\u7279\u5f81\u7684\u5b9e\u4f53\u5bf9\u8c61\u6b63\u5408\u9002\uff0c\u6bd4\u5982\u7f51\u7ad9\u4e0a\u7684\u7528\u6237\u6216\u5546\u54c1\u4e66\u7c4d\u4e4b\u7c7b\u7684\u6761\u76ee\u3002<\/p>\n

\u4e00\u4e9b\u6982\u5ff5\uff1a<\/strong><\/h3>\n

\u8ddfmysqld\u4e00\u6837\uff0c\u4e00\u4e2amongod\u670d\u52a1\u53ef\u4ee5\u6709\u5efa\u7acb\u591a\u4e2a\u6570\u636e\u5e93\uff0c\u6bcf\u4e2a\u6570\u636e\u5e93\u53ef\u4ee5\u6709\u591a\u5f20\u8868\uff0c\u8fd9\u91cc\u7684\u8868\u540d\u53ebcollection\uff0c\u6bcf\u4e2acollection\u53ef\u4ee5\u5b58\u653e\u591a\u4e2a\u6587\u6863\uff08document\uff09\uff0c\u6bcf\u4e2a\u6587\u6863\u90fd\u4ee5BSON\uff08binary json\uff09\u7684\u5f62\u5f0f\u5b58\u653e\u4e8e\u786c\u76d8\u4e2d\u3002\u8ddf\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e0d\u4e00\u6837\u7684\u5730\u65b9\u662f\uff0c\u5b83\u662f\u7684\u4ee5\u5355\u6587\u6863\u4e3a\u5355\u4f4d\u5b58\u50a8\u7684\uff0c\u4f60\u53ef\u4ee5\u4efb\u610f\u7ed9\u4e00\u4e2a\u6216\u4e00\u6279\u6587\u6863\u65b0\u589e\u6216\u5220\u9664\u5b57\u6bb5\uff0c\u800c\u4e0d\u4f1a\u5bf9\u5176\u5b83\u6587\u6863\u9020\u6210\u5f71\u54cd\uff0c\u8fd9\u5c31\u662f\u6240\u8c13\u7684schema-free\uff0c\u8fd9\u4e5f\u662f\u6587\u6863\u578b\u6570\u636e\u5e93\u6700\u4e3b\u8981\u7684\u4f18\u70b9\u3002\u8ddf\u4e00\u822c\u7684key-value\u6570\u636e\u5e93\u4e0d\u4e00\u6837\u7684\u662f\uff0c\u5b83\u7684value\u4e2d\u5b58\u50a8\u4e86\u7ed3\u6784\u4fe1\u606f\uff0c\u6240\u4ee5\u4f60\u53c8\u53ef\u4ee5\u50cf\u5173\u7cfb\u578b\u6570\u636e\u5e93\u90a3\u6837\u5bf9\u67d0\u4e9b\u57df\u8fdb\u884c\u8bfb\u5199\u3001\u7edf\u8ba1\u7b49\u64cd\u4f5c\u3002\u53ef\u4ee5\u8bf4\u662f\u517c\u5907\u4e86key-value\u6570\u636e\u5e93\u7684\u65b9\u4fbf\u9ad8\u6548\u4e0e\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684\u5f3a\u5927\u529f\u80fd\u3002<\/p>\n

\u7d22\u5f15<\/strong><\/h3>\n

\u8ddf\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7c7b\u4f3c\uff0cmongodb\u53ef\u4ee5\u5bf9\u67d0\u4e2a\u5b57\u6bb5\u5efa\u7acb\u7d22\u5f15\uff0c\u53ef\u4ee5\u5efa\u7acb\u7ec4\u5408\u7d22\u5f15\u3001\u552f\u4e00\u7d22\u5f15\uff0c\u4e5f\u53ef\u4ee5\u5220\u9664\u7d22\u5f15\u3002\u5f53\u7136\u5efa\u7acb\u7d22\u5f15\u5c31\u610f\u5473\u7740\u589e\u52a0\u7a7a\u95f4\u5f00\u9500\uff0c\u6211\u7684\u5efa\u8bae\u662f\uff0c\u5982\u679c\u4f60\u80fd\u628a\u4e00\u4e2a\u6587\u6863\u4f5c\u4e3a\u4e00\u4e2a\u5bf9\u8c61\u7684\u6765\u8003\u8651\uff0c\u5728\u7ebf\u4e0a\u5e94\u7528\u4e2d\uff0c\u4f60\u901a\u5e38\u53ea\u8981\u5bf9\u5bf9\u8c61ID\u5efa\u7acb\u4e00\u4e2a\u7d22\u5f15\u5373\u53ef\uff0c\u6839\u636eID\u53d6\u51fa\u5bf9\u8c61\u67d0\u4e9b\u6570\u636e\u653e\u5728memcache\u5373\u53ef\u3002\u5982\u679c\u662f\u540e\u53f0\u7684\u5206\u6790\u9700\u8981\uff0c\u54cd\u5e94\u8981\u6c42\u4e0d\u9ad8\uff0c\u67e5\u8be2\u975e\u7d22\u5f15\u7684\u5b57\u6bb5\u5373\u4fbf\u76f4\u63a5\u626b\u8868\u4e5f\u8d39\u4e0d\u4e86\u592a\u591a\u65f6\u95f4\u3002\u5982\u679c\u8fd8\u53d7\u4e0d\u4e86\uff0c\u5c31\u518d\u5efa\u4e00\u4e2a\u7d22\u5f15\u5f97\u4e86\u3002<\/p>\n

\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u6bcf\u4e2a\u8868\u90fd\u4f1a\u6709\u4e00\u4e2a\u552f\u4e00\u7d22\u5f15\uff1a_id\uff0c\u5982\u679c\u63d2\u5165\u6570\u636e\u65f6\u6ca1\u6709\u6307\u5b9a_id\uff0c\u670d\u52a1\u4f1a\u81ea\u52a8\u751f\u6210\u4e00\u4e2a_id\uff0c\u4e3a\u4e86\u5145\u5206\u5229\u7528\u5df2\u6709\u7d22\u5f15\uff0c\u51cf\u5c11\u7a7a\u95f4\u5f00\u9500\uff0c\u6700\u597d\u662f\u81ea\u5df1\u6307\u5b9a\u4e00\u4e2aunique\u7684key\u4e3a_id\uff0c\u901a\u5e38\u7528\u5bf9\u8c61\u7684ID\u6bd4\u8f83\u5408\u9002\uff0c\u6bd4\u5982\u5546\u54c1\u7684ID\u3002<\/p>\n

capped collection<\/strong><\/h3>\n

capped collection\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u8868\uff0c\u5b83\u7684\u5efa\u8868\u547d\u4ee4\u4e3a\uff1a<\/p>\n

db.createCollection(\"mycoll\", {capped:true, size:100000})<\/pre>\n
\u5141\u8bb8\u5728\u5efa\u8868\u4e4b\u521d\u5c31\u6307\u5b9a\u4e00\u5b9a\u7684\u7a7a\u95f4\u5927\u5c0f\uff0c\u63a5\u4e0b\u6765\u7684\u63d2\u5165\u64cd\u4f5c\u4f1a\u4e0d\u65ad\u5730\u6309\u987a\u5e8fAPPEND\u6570\u636e\u5728\u8fd9\u4e2a\u9884\u5206\u914d\u597d\u7a7a\u95f4\u7684\u6587\u4ef6\u4e2d\uff0c\u5982\u679c\u5df2\u7ecf\u8d85\u51fa\u7a7a\u95f4\u5927\u5c0f\uff0c\u5219\u56de\u5230\u6587\u4ef6\u5934\u8986\u76d6\u539f\u6765\u7684\u6570\u636e\u7ee7\u7eed\u63d2\u5165\u3002\u8fd9\u79cd\u7ed3\u6784\u4fdd\u8bc1\u4e86\u63d2\u5165\u548c\u67e5\u8be2\u7684\u9ad8\u6548\u6027\uff0c\u5b83\u4e0d\u5141\u8bb8\u5220\u9664\u5355\u4e2a\u8bb0\u5f55\uff0c\u66f4\u65b0\u7684\u4e5f\u6709\u9650\u5236\uff1a\u4e0d\u80fd\u8d85\u8fc7\u539f\u6709\u8bb0\u5f55\u7684\u5927\u5c0f\u3002\u8fd9\u79cd\u8868\u6548\u7387\u5f88\u9ad8\uff0c\u5b83\u9002\u7528\u4e8e\u4e00\u4e9b\u6682\u65f6\u4fdd\u5b58\u6570\u636e\u7684\u573a\u5408\uff0c\u6bd4\u5982\u7f51\u7ad9\u4e2d\u767b\u5f55\u7528\u6237\u7684session\u4fe1\u606f\uff0c\u53c8\u6bd4\u5982\u4e00\u4e9b\u7a0b\u5e8f\u7684\u76d1\u63a7\u65e5\u5fd7\uff0c\u90fd\u662f\u5c5e\u4e8e\u8fc7\u4e86\u4e00\u5b9a\u7684\u65f6\u95f4\u5c31\u53ef\u4ee5\u88ab\u8986\u76d6\u7684\u6570\u636e\u3002<\/p>\n
\u590d\u5236\u4e0e\u5206\u7247<\/h3>\n
mongodb\u7684\u590d\u5236\u67b6\u6784\u8ddfmysql\u4e5f\u5f88\u7c7b\u4f3c\uff0c\u9664\u4e86\u5305\u62ecmaster-slave\u6784\u578b\u548cmaster-master\u6784\u578b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e2aReplica pairs\u6784\u578b\uff0c\u8fd9\u79cd\u6784\u578b\u5728\u5e73\u5e38\u53ef\u4ee5\u50cfmaster-slave\u90a3\u6837\u5de5\u4f5c\uff0c\u4e00\u4f46master\u51fa\u73b0\u95ee\u9898\uff0c\u5e94\u7528\u4f1a\u81ea\u52a8\u4e86\u8fde\u63a5slave\u3002\u8981\u505a\u590d\u5236\u4e5f\u5f88\u7b80\u5355\uff0c\u6211\u81ea\u5df1\u4f7f\u7528\u8fc7master-slave\u6784\u578b\uff0c\u53ea\u8981\u5728\u67d0\u4e00\u4e2a\u670d\u52a1\u542f\u52a8\u65f6\u52a0\u4e0a\u2013master\u53c2\u6570\uff0c\u800c\u53e6\u4e00\u4e2a\u670d\u52a1\u52a0\u4e0a\u2013slave\u4e0e\u2013source\u53c2\u6570\uff0c\u5373\u53ef\u5b9e\u73b0\u540c\u6b65\u3002<\/p>\n
\u5206\u7247\u662f\u4e2a\u5f88\u5934\u75bc\u7684\u95ee\u9898\uff0c\u6570\u636e\u91cf\u5927\u4e86\u80af\u5b9a\u8981\u5206\u7247\uff0cmysql\u4e0b\u7684\u5206\u7247\u6b63\u662f\u6210\u4e3a\u65e0\u6570DBA\u7684\u5669\u68a6\u3002\u5728mongodb\u4e0b\uff0c\u6587\u6863\u6570\u636e\u5e93\u7c7b\u4f3ckey-value\u6570\u636e\u5e93\u90a3\u6837\u7684\u6613\u5206\u5e03\u7279\u6027\u5c31\u663e\u73b0\u51fa\u6765\u4e86\uff0c\u65e0\u8bba\u6784\u9020\u5206\u7247\u670d\u52a1\uff0c\u65b0\u589e\u8282\u70b9\u8fd8\u662f\u5220\u9664\u8282\u70b9\u90fd\u975e\u5e38\u5bb9\u6613\u5b9e\u73b0\u3002\u4f46mongodb\u5728\u8fd9\u65b9\u9762\u505a\u8fd8\u4e0d\u8db3\u591f\u6210\u719f\uff0c\u73b0\u5728\u5206\u7247\u7684\u5de5\u4f5c\u8fd8\u53ea\u505a\u5230alpha2\u7248\u672c\uff08mongodb v1.1\uff09\uff0c\u4f30\u8ba1\u8fd8\u6709\u5f88\u591a\u95ee\u9898\u8981\u89e3\u51b3\uff0c\u6240\u4ee5\u53ea\u80fd\u671f\u5f85\uff0c\u5c31\u4e0d\u591a\u8bf4\u4e86\u3002<\/p>\n
\u6027\u80fd<\/h3>\n
\u5728\u6211\u7684\u4f7f\u7528\u573a\u5408\u4e0b\uff0c\u5343\u4e07\u7ea7\u522b\u7684\u6587\u6863\u5bf9\u8c61\uff0c\u8fd110G\u7684\u6570\u636e\uff0c\u5bf9\u6709\u7d22\u5f15\u7684ID\u7684\u67e5\u8be2\u4e0d\u4f1a\u6bd4mysql\u6162\uff0c\u800c\u5bf9\u975e\u7d22\u5f15\u5b57\u6bb5\u7684\u67e5\u8be2\uff0c\u5219\u662f\u5168\u9762\u80dc\u51fa\u3002mysql\u5b9e\u9645\u65e0\u6cd5\u80dc\u4efb\u5927\u6570\u636e\u91cf\u4e0b\u4efb\u610f\u5b57\u6bb5\u7684\u67e5\u8be2\uff0c\u800cmongodb\u7684\u67e5\u8be2\u6027\u80fd\u5b9e\u5728\u8ba9\u6211\u60ca\u8bb6\u3002\u5199\u5165\u6027\u80fd\u540c\u6837\u5f88\u4ee4\u4eba\u6ee1\u610f\uff0c\u540c\u6837\u5199\u5165\u767e\u4e07\u7ea7\u522b\u7684\u6570\u636e\uff0cmongodb\u6bd4\u6211\u4ee5\u524d\u8bd5\u7528\u8fc7\u7684couchdb\u8981\u5feb\u5f97\u591a\uff0c\u57fa\u672c10\u5206\u949f\u4ee5\u4e0b\u53ef\u4ee5\u89e3\u51b3\u3002\u8865\u4e0a\u4e00\u53e5\uff0c\u89c2\u5bdf\u8fc7\u7a0b\u4e2dmongodb\u90fd\u8fdc\u7b97\u4e0d\u4e0a\u662fCPU\u6740\u624b\u3002<\/p>\n
GridFS<\/h3>\n
gridfs\u662fmongodb\u4e00\u4e2a\u5f88\u6709\u8da3\u7684\u7c7b\u4f3c\u6587\u4ef6\u7cfb\u7edf\u7684\u4e1c\u897f\uff0c\u5b83\u53ef\u4ee5\u7528\u4e00\u5927\u5757\u6587\u4ef6\u7a7a\u95f4\u6765\u5b58\u653e\u5927\u91cf\u7684\u5c0f\u6587\u4ef6\uff0c\u8fd9\u4e2a\u5bf9\u4e8e\u5b58\u50a8web2.0\u7f51\u7ad9\u4e2d\u5e38\u89c1\u7684\u5927\u91cf\u5c0f\u6587\u4ef6\uff08\u5982\u5927\u91cf\u7684\u7528\u6237\u5934\u50cf\uff09\u7279\u522b\u6709\u6548\u3002\u4f7f\u7528\u8d77\u6765\u4e5f\u5f88\u65b9\u4fbf\uff0c\u57fa\u672c\u4e0a\u8ddf\u4e00\u822c\u7684\u6587\u4ef6\u7cfb\u7edf\u7c7b\u4f3c\u3002<\/p>\n
\u7528\u5408\u9002\u7684\u6570\u636e\u5e93\u505a\u9002\u5408\u7684\u4e8b\u60c5<\/strong><\/h3>\n
mongodb\u7684\u6587\u6863\u91cc\u63d0\u5230\u7684user case\u5305\u62ec\u5b9e\u65f6\u5206\u6790\u3001logging\u3001\u5168\u6587\u641c\u7d22\uff0c\u56fd\u5185\u4e5f\u6709\u4eba\u4f7f\u7528mongodb\u6765\u5b58\u50a8\u5206\u6790\u7f51\u7ad9\u65e5\u5fd7\uff0c\u4f46\u6211\u8ba4\u4e3amongodb\u7528\u6765\u5904\u7406\u6709\u4e00\u5b9a\u89c4\u6a21\u7684\u7f51\u7ad9\u65e5\u5fd7\u5176\u5b9e\u5e76\u4e0d\u5408\u9002\uff0c\u6700\u4e3b\u8981\u7684\u5c31\u662f\u5b83\u5360\u7a7a\u95f4\u8fc7\u4e8e\u865a\u9ad8\uff0c\u539f\u67651G\u7684\u65e5\u5fd7\u6570\u636e\u5b83\u53ef\u4ee5\u5b58\u6210\u51e0\u4e2aG\uff0c\u5982\u6b64\u4e0b\u53bb\uff0c\u4e00\u4e2a\u786c\u76d8\u4e5f\u5b58\u4e0d\u4e86\u51e0\u5929\u7684\u65e5\u5fd7\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u6570\u636e\u91cf\u5927\u4e86\u80af\u5b9a\u8981\u8003\u8651sharding\uff0c\u800cmongodb\u7684sharding\u5230\u73b0\u5728\u4e3a\u6b62\u4ecd\u4e0d\u592a\u6210\u719f\u3002\u7531\u4e8e\u65e5\u5fd7\u7684\u4e0d\u53ef\u66f4\u65b0\u6027\u7684\uff0c\u5f80\u5f80\u53ea\u9700APPEND\u5373\u53ef\uff0c\u53c8\u56e0\u4e3a\u5bf9\u65e5\u5fd7\u7684\u64cd\u4f5c\u5f80\u5f80\u53ea\u96c6\u4e2d\u4e8e\u4e00\u4e24\u5217\uff0c\u6240\u4ee5\u6700\u5408\u9002\u4f5c\u4e3a\u65e5\u5fd7\u5206\u6790\u7684\u8fd8\u662f\u5217\u5b58\u50a8\u578b\u7684\u6570\u636e\u5e93\uff0c\u7279\u522b\u662f\u50cfinfobright\u90a3\u6837\u7684\u4e3a\u6570\u636e\u4ed3\u5e93\u800c\u8bbe\u8ba1\u7684\u5217\u5b58\u50a8\u6570\u636e\u5e93\u3002<\/p>\n
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mongodb\u5360\u7528\u7a7a\u95f4\u8fc7\u5927\u7684\u539f\u56e0\uff0c\u5728\u5b98\u65b9\u7684FAQ\u4e2d\uff0c\u63d0\u5230\u6709\u5982\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/strong><\/h3>\n
1\u3001\u7a7a\u95f4\u7684\u9884\u5206\u914d\uff1a\u4e3a\u907f\u514d\u5f62\u6210\u8fc7\u591a\u7684\u786c\u76d8\u788e\u7247\uff0cmongodb\u6bcf\u6b21\u7a7a\u95f4\u4e0d\u8db3\u65f6\u90fd\u4f1a\u7533\u8bf7\u751f\u6210\u4e00\u5927\u5757\u7684\u786c\u76d8\u7a7a\u95f4\uff0c\u800c\u4e14\u7533\u8bf7\u7684\u91cf\u4ece64M\u3001128M\u3001256M\u90a3\u6837\u7684\u6307\u6570\u9012\u589e\uff0c\u76f4\u52302G\u4e3a\u5355\u4e2a\u6587\u4ef6\u7684\u6700\u5927\u4f53\u79ef\u3002\u968f\u7740\u6570\u636e\u91cf\u7684\u589e\u52a0\uff0c\u4f60\u53ef\u4ee5\u5728\u5176\u6570\u636e\u76ee\u5f55\u91cc\u770b\u5230\u8fd9\u4e9b\u6574\u5757\u751f\u6210\u5bb9\u91cf\u4e0d\u65ad\u9012\u589e\u7684\u6587\u4ef6\u3002<\/p>\n
2\u3001\u5b57\u6bb5\u540d\u6240\u5360\u7528\u7684\u7a7a\u95f4\uff1a\u4e3a\u4e86\u4fdd\u6301\u6bcf\u4e2a\u8bb0\u5f55\u5185\u7684\u7ed3\u6784\u4fe1\u606f\u7528\u4e8e\u67e5\u8be2\uff0cmongodb\u9700\u8981\u628a\u6bcf\u4e2a\u5b57\u6bb5\u7684key-value\u90fd\u4ee5BSON\u7684\u5f62\u5f0f\u5b58\u50a8\uff0c\u5982\u679cvalue\u57df\u76f8\u5bf9\u4e8ekey\u57df\u5e76\u4e0d\u5927\uff0c\u6bd4\u5982\u5b58\u653e\u6570\u503c\u578b\u7684\u6570\u636e\uff0c\u5219\u6570\u636e\u7684overhead\u662f\u6700\u5927\u7684\u3002\u4e00\u79cd\u51cf\u5c11\u7a7a\u95f4\u5360\u7528\u7684\u65b9\u6cd5\u662f\u628a\u5b57\u6bb5\u540d\u5c3d\u91cf\u53d6\u77ed\u4e00\u4e9b\uff0c\u8fd9\u6837\u5360\u7528\u7a7a\u95f4\u5c31\u5c0f\u4e86\uff0c\u4f46\u8fd9\u5c31\u8981\u6c42\u5728\u6613\u8bfb\u6027\u4e0e\u7a7a\u95f4\u5360\u7528\u4e0a\u4f5c\u4e3a\u6743\u8861\u4e86\u3002\u6211\u66fe\u5efa\u8bae\u4f5c\u8005\u628a\u5b57\u6bb5\u540d\u4f5c\u4e2aindex\uff0c\u6bcf\u4e2a\u5b57\u6bb5\u540d\u7528\u4e00\u4e2a\u5b57\u8282\u8868\u793a\uff0c\u8fd9\u6837\u5c31\u4e0d\u7528\u62c5\u5fc3\u5b57\u6bb5\u540d\u53d6\u591a\u957f\u4e86\u3002\u4f46\u4f5c\u8005\u7684\u62c5\u5fe7\u4e5f\u4e0d\u65e0\u9053\u7406\uff0c\u8fd9\u79cd\u7d22\u5f15\u65b9\u5f0f\u9700\u8981\u6bcf\u6b21\u67e5\u8be2\u5f97\u5230\u7ed3\u679c\u540e\u628a\u7d22\u5f15\u503c\u8ddf\u539f\u503c\u4f5c\u4e00\u4e2a\u66ff\u6362\uff0c\u518d\u53d1\u9001\u5230\u5ba2\u6237\u7aef\uff0c\u8fd9\u4e2a\u66ff\u6362\u4e5f\u662f\u633a\u8017\u8d39\u65f6\u95f4\u7684\u3002\u73b0\u5728\u7684\u5b9e\u73b0\u7b97\u662f\u62ff\u7a7a\u95f4\u6765\u6362\u53d6\u65f6\u95f4\u5427\u3002<\/p>\n
3\u3001\u5220\u9664\u8bb0\u5f55\u4e0d\u91ca\u653e\u7a7a\u95f4\uff1a\u8fd9\u5f88\u5bb9\u6613\u7406\u89e3\uff0c\u4e3a\u907f\u514d\u8bb0\u5f55\u5220\u9664\u540e\u7684\u6570\u636e\u7684\u5927\u89c4\u6a21\u632a\u52a8\uff0c\u539f\u8bb0\u5f55\u7a7a\u95f4\u4e0d\u5220\u9664\uff0c\u53ea\u6807\u8bb0\u201c\u5df2\u5220\u9664\u201d\u5373\u53ef\uff0c\u4ee5\u540e\u8fd8\u53ef\u4ee5\u91cd\u590d\u5229\u7528\u3002<\/p>\n
4\u3001\u53ef\u4ee5\u5b9a\u671f\u8fd0\u884cdb.repairDatabase()\u6765\u6574\u7406\u8bb0\u5f55\uff0c\u4f46\u8fd9\u4e2a\u8fc7\u7a0b\u4f1a\u6bd4\u8f83\u7f13\u6162\u3002<\/p>\n
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\u6700\u540e\u603b\u7ed3\u4e00\u53e5\uff0c\u6587\u6863\u578b\u6570\u636e\u5e93\u6709\u70b9\u50cf\u6ce2\u7c92\u4e8c\u8c61\u6027\uff0c\u603b\u80fd\u5728\u9002\u5f53\u7684\u65f6\u5019\u8868\u73b0\u51fa\u5b83\u4f5c\u4e3a\u5173\u7cfb\u578b\u6570\u636e\u5e93\u6216key-value\u6570\u636e\u5e93\u7684\u4f18\u52bf\u6765\u3002<\/p>\n
\u5b9e\u6218\u6848\u4f8b\uff1a<\/p>\n
\u6628\u5929\u6211\u8bbf\u95eemongodb\u7684python\u7a0b\u5e8f\u5f00\u59cb\u51fa\u9519\uff0c\u7ecf\u5e38\u629b\u51faAssertionError\u5f02\u5e38\uff0c\u7ecf\u67e5\u8bc1\u53ea\u662fmaster\u67e5\u8be2\u5f02\u5e38\uff0cslave\u6b63\u5e38\uff0c\u53ef\u5224\u65ad\u4e3amaster\u7684\u6570\u636e\u51fa\u4e86\u95ee\u9898\u3002<\/p>\n
\u4fee\u590d\u8fc7\u7a0b\uff1a<\/p>\n
1\u3001\u5728master\u505adb.repairDatabase()\uff0c\u4e0d\u8d77\u4f5c\u7528\uff1b<\/p>\n
2\u3001\u505c\u6b62slave\u7684\u540c\u6b65\uff1b<\/p>\n
3\u3001\u5bf9slave\u4f5cmongodump\uff0c\u5907\u4efd\u6570\u636e\uff1b<\/p>\n
4\u3001\u5bf9master\u4f5cmongostore\uff0c\u628a\u5907\u4efd\u6570\u636e\u6062\u590d\uff0c\u4f7f\u7528\u2013drop\u53c2\u6570\u53ef\u4ee5\u5148\u628a\u539f\u8868\u5220\u9664\u3002<\/p>\n
5\u3001\u6062\u590dslave\u7684\u540c\u6b65\u3002<\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
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