{"id":175741,"date":"2024-11-08T08:31:25","date_gmt":"2024-11-08T00:31:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175741\/"},"modified":"2024-11-08T08:31:26","modified_gmt":"2024-11-08T00:31:26","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mongodb%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc-146-%e8%b6%85%e5%87%ba%e5%85%a7%e5%ad%98%e9%99%90%e5%88%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175741\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc &#8211; 146 &#8211; \u8d85\u51fa\u5167\u5b58\u9650\u5236"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mongodb%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc-146-%e8%b6%85%e5%87%ba%e5%85%a7%e5%ad%98%e9%99%90%e5%88%b6-bLfANjsoLy\">\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc &#8211; 146 &#8211; \u8d85\u51fa\u5167\u5b58\u9650\u5236<\/h1>\n<p>\u5728\u4f7f\u7528MongoDB\u7684\u904e\u7a0b\u4e2d\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa4\u4ee3\u78bc146\uff0c\u8868\u793a\u201c\u8d85\u51fa\u5167\u5b58\u9650\u5236\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u57f7\u884c\u67d0\u4e9b\u64cd\u4f5c\u6642\uff0c\u4f8b\u5982\u67e5\u8a62\u6216\u63d2\u5165\u5927\u91cf\u6578\u64da\uff0c\u5c0e\u81f4MongoDB\u7684\u5167\u5b58\u4f7f\u7528\u91cf\u8d85\u904e\u4e86\u9810\u8a2d\u7684\u9650\u5236\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc146%e7%9a%84%e5%8e%9f%e5%9b%a0-bLfANjsoLy\">\u932f\u8aa4\u4ee3\u78bc146\u7684\u539f\u56e0<\/h2>\n<p>MongoDB\u7684\u5167\u5b58\u9650\u5236\u4e3b\u8981\u662f\u7531\u65bc\u5176\u5167\u90e8\u7684\u6578\u64da\u7d50\u69cb\u548c\u64cd\u4f5c\u65b9\u5f0f\u6240\u6c7a\u5b9a\u7684\u3002\u7576\u4f60\u57f7\u884c\u4e00\u500b\u67e5\u8a62\u6216\u64cd\u4f5c\u6642\uff0cMongoDB\u6703\u5c07\u6578\u64da\u52a0\u8f09\u5230\u5167\u5b58\u4e2d\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002\u5982\u679c\u8acb\u6c42\u7684\u6578\u64da\u91cf\u904e\u5927\uff0c\u8d85\u51fa\u4e86MongoDB\u7684\u5167\u5b58\u9650\u5236\uff0c\u5c31\u6703\u51fa\u73fe\u932f\u8aa4\u4ee3\u78bc146\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u53ef\u80fd\u5c0e\u81f4\u6b64\u932f\u8aa4\u7684\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u67e5\u8a62\u904e\u65bc\u8907\u96dc\uff1a<\/strong>\u5982\u679c\u67e5\u8a62\u6d89\u53ca\u591a\u500b\u96c6\u5408\u6216\u4f7f\u7528\u4e86\u5927\u91cf\u7684\u805a\u5408\u64cd\u4f5c\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u5167\u5b58\u4f7f\u7528\u91cf\u6fc0\u589e\u3002<\/li>\n<li><strong>\u6578\u64da\u91cf\u904e\u5927\uff1a<\/strong>\u7576\u6578\u64da\u96c6\u975e\u5e38\u9f90\u5927\u6642\uff0c\u55ae\u6b21\u64cd\u4f5c\u53ef\u80fd\u6703\u8d85\u51fa\u5167\u5b58\u9650\u5236\u3002<\/li>\n<li><strong>\u7d22\u5f15\u7f3a\u5931\uff1a<\/strong>\u7f3a\u4e4f\u9069\u7576\u7684\u7d22\u5f15\u6703\u5c0e\u81f4MongoDB\u5728\u67e5\u8a62\u6642\u9700\u8981\u6383\u63cf\u6574\u500b\u96c6\u5408\uff0c\u589e\u52a0\u5167\u5b58\u6d88\u8017\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-bLfANjsoLy\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u70ba\u4e86\u89e3\u6c7aMongoDB\u932f\u8aa4\u4ee3\u78bc146\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2-bLfANjsoLy\">1. \u512a\u5316\u67e5\u8a62<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u4f60\u7684\u67e5\u8a62\u662f\u5426\u53ef\u4ee5\u9032\u884c\u512a\u5316\u3002\u4f7f\u7528MongoDB\u7684\u67e5\u8a62\u5206\u6790\u5de5\u5177\uff08\u5982explain()\uff09\u4f86\u67e5\u770b\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\uff0c\u4e26\u6839\u64da\u7d50\u679c\u9032\u884c\u8abf\u6574\u3002\u4f8b\u5982\uff0c\u907f\u514d\u4f7f\u7528\u4e0d\u5fc5\u8981\u7684\u805a\u5408\u64cd\u4f5c\uff0c\u6216\u5c07\u67e5\u8a62\u5206\u89e3\u70ba\u591a\u500b\u8f03\u5c0f\u7684\u67e5\u8a62\u3002<\/p>\n<pre><code>db.collection.find().explain(\"executionStats\")<\/code><\/pre>\n<h3 id=\"2-%e5%a2%9e%e5%8a%a0%e5%85%a7%e5%ad%98%e9%99%90%e5%88%b6-bLfANjsoLy\">2. \u589e\u52a0\u5167\u5b58\u9650\u5236<\/h3>\n<p>\u5982\u679c\u4f60\u7684\u61c9\u7528\u7a0b\u5e8f\u9700\u8981\u8655\u7406\u5927\u91cf\u6578\u64da\uff0c\u53ef\u4ee5\u8003\u616e\u589e\u52a0MongoDB\u7684\u5167\u5b58\u9650\u5236\u3002\u9019\u53ef\u4ee5\u901a\u904e\u8abf\u6574MongoDB\u7684\u914d\u7f6e\u6587\u4ef6\u4f86\u5be6\u73fe\u3002\u5177\u9ad4\u4f86\u8aaa\uff0c\u53ef\u4ee5\u4fee\u6539<code>wiredTiger<\/code>\u7684\u914d\u7f6e\uff0c\u589e\u52a0<code>cacheSizeGB<\/code>\u7684\u503c\u3002<\/p>\n<pre><code>storage:\n  wiredTiger:\n    engineConfig:\n      cacheSizeGB: 2<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e7%b4%a2%e5%bc%95-bLfANjsoLy\">3. \u4f7f\u7528\u7d22\u5f15<\/h3>\n<p>\u78ba\u4fdd\u4f60\u7684\u67e5\u8a62\u4f7f\u7528\u4e86\u9069\u7576\u7684\u7d22\u5f15\u3002\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u6e1b\u5c11\u5167\u5b58\u4f7f\u7528\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u5275\u5efa\u7d22\u5f15\uff1a<\/p>\n<pre><code>db.collection.createIndex({ fieldName: 1 })<\/code><\/pre>\n<h3 id=\"4-%e5%88%86%e7%89%87%e6%8a%80%e8%a1%93-bLfANjsoLy\">4. \u5206\u7247\u6280\u8853<\/h3>\n<p>\u5c0d\u65bc\u7279\u5225\u5927\u7684\u6578\u64da\u96c6\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528MongoDB\u7684\u5206\u7247\u6280\u8853\u3002\u5206\u7247\u53ef\u4ee5\u5c07\u6578\u64da\u5206\u6563\u5230\u591a\u500b\u4f3a\u670d\u5668\u4e0a\uff0c\u5f9e\u800c\u6e1b\u5c11\u55ae\u500b\u4f3a\u670d\u5668\u7684\u5167\u5b58\u58d3\u529b\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-bLfANjsoLy\">\u7e3d\u7d50<\/h2>\n<p>MongoDB\u932f\u8aa4\u4ee3\u78bc146\u901a\u5e38\u662f\u7531\u65bc\u5167\u5b58\u9650\u5236\u5f15\u8d77\u7684\uff0c\u89e3\u6c7a\u6b64\u554f\u984c\u9700\u8981\u5f9e\u67e5\u8a62\u512a\u5316\u3001\u5167\u5b58\u914d\u7f6e\u3001\u7d22\u5f15\u4f7f\u7528\u548c\u5206\u7247\u6280\u8853\u7b49\u591a\u65b9\u9762\u5165\u624b\u3002\u901a\u904e\u9019\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u5167\u5b58\u4f7f\u7528\uff0c\u907f\u514d\u51fa\u73fe\u6b64\u932f\u8aa4\u3002\u5982\u679c\u4f60\u5728\u9999\u6e2f\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a 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