{"id":175687,"date":"2024-11-08T07:57:17","date_gmt":"2024-11-07T23:57:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175687\/"},"modified":"2024-11-08T07:57:18","modified_gmt":"2024-11-07T23:57:18","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-112-%e5%af%ab%e8%a1%9d%e7%aa%81","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175687\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc &#8211; 112 &#8211; \u5beb\u885d\u7a81"},"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-112-%e5%af%ab%e8%a1%9d%e7%aa%81-cYPiNvRuTS\">\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc &#8211; 112 &#8211; \u5beb\u885d\u7a81<\/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\u78bc112\uff0c\u9019\u901a\u5e38\u8868\u793a\u300c\u5beb\u885d\u7a81\u300d\u3002\u9019\u7a2e\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u591a\u500b\u64cd\u4f5c\u540c\u6642\u5617\u8a66\u4fee\u6539\u540c\u4e00\u6587\u6a94\u6642\uff0c\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3002\u672c\u6587\u5c07\u6df1\u5165\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%bc112%e7%9a%84%e5%8e%9f%e5%9b%a0-cYPiNvRuTS\">\u932f\u8aa4\u4ee3\u78bc112\u7684\u539f\u56e0<\/h2>\n<p>MongoDB\u7684\u5beb\u885d\u7a81\u901a\u5e38\u662f\u7531\u65bc\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\u9020\u6210\u7684\uff1a<\/p>\n<ul>\n<li><strong>\u591a\u500b\u5beb\u5165\u64cd\u4f5c\uff1a<\/strong>\u7576\u591a\u500b\u5ba2\u6236\u7aef\u540c\u6642\u5617\u8a66\u66f4\u65b0\u540c\u4e00\u6587\u6a94\u6642\uff0cMongoDB\u6703\u6aa2\u6e2c\u5230\u885d\u7a81\uff0c\u4e26\u8fd4\u56de\u932f\u8aa4\u4ee3\u78bc112\u3002<\/li>\n<li><strong>\u9577\u6642\u9593\u904b\u884c\u7684\u67e5\u8a62\uff1a<\/strong>\u5982\u679c\u4e00\u500b\u67e5\u8a62\u5728\u57f7\u884c\u6642\u6301\u6709\u9396\uff0c\u5176\u4ed6\u5beb\u5165\u64cd\u4f5c\u53ef\u80fd\u6703\u88ab\u963b\u585e\uff0c\u5c0e\u81f4\u5beb\u885d\u7a81\u3002<\/li>\n<li><strong>\u4e0d\u7576\u7684\u7d22\u5f15\u8a2d\u7f6e\uff1a<\/strong>\u7f3a\u4e4f\u9069\u7576\u7684\u7d22\u5f15\u53ef\u80fd\u6703\u5c0e\u81f4\u67e5\u8a62\u6027\u80fd\u4e0b\u964d\uff0c\u5f9e\u800c\u589e\u52a0\u5beb\u885d\u7a81\u7684\u53ef\u80fd\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc112-cYPiNvRuTS\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa4\u4ee3\u78bc112<\/h2>\n<p>\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc112\u7684\u904e\u7a0b\u53ef\u4ee5\u5206\u70ba\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e4%b8%a6%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2-cYPiNvRuTS\">1. \u6aa2\u67e5\u4e26\u512a\u5316\u67e5\u8a62<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u5c0e\u81f4\u5beb\u885d\u7a81\u7684\u67e5\u8a62\u3002\u4f7f\u7528MongoDB\u7684\u6027\u80fd\u5206\u6790\u5de5\u5177\uff08\u5982<code>explain()<\/code>\uff09\u4f86\u5206\u6790\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\uff0c\u78ba\u4fdd\u67e5\u8a62\u662f\u9ad8\u6548\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>db.collection.find({ field: value }).explain(\"executionStats\")<\/code><\/pre>\n<p>\u6839\u64da\u5206\u6790\u7d50\u679c\uff0c\u8003\u616e\u6dfb\u52a0\u7d22\u5f15\u6216\u91cd\u69cb\u67e5\u8a62\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e9%87%8d%e8%a9%a6%e9%82%8f%e8%bc%af-cYPiNvRuTS\">2. \u4f7f\u7528\u91cd\u8a66\u908f\u8f2f<\/h3>\n<p>\u5728\u61c9\u7528\u7a0b\u5e8f\u4e2d\u5be6\u73fe\u91cd\u8a66\u908f\u8f2f\u662f\u8655\u7406\u5beb\u885d\u7a81\u7684\u4e00\u7a2e\u6709\u6548\u65b9\u6cd5\u3002\u7576\u6355\u7372\u5230\u932f\u8aa4\u4ee3\u78bc112\u6642\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u4e00\u500b\u91cd\u8a66\u6a5f\u5236\uff0c\u7a0d\u5f8c\u518d\u5617\u8a66\u57f7\u884c\u5beb\u5165\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>function retryWrite(operation, retries) {\n    for (let i = 0; i &lt; retries; i++) {\n        try {\n            operation();\n            break; \/\/ \u6210\u529f\u57f7\u884c\u5f8c\u9000\u51fa\u5faa\u74b0\n        } catch (e) {\n            if (e.code === 112) {\n                \/\/ \u5beb\u885d\u7a81\uff0c\u7a0d\u5f8c\u91cd\u8a66\n                sleep(100); \/\/ \u7b49\u5f85100\u6beb\u79d2\n            } else {\n                throw e; \/\/ \u5176\u4ed6\u932f\u8aa4\uff0c\u62cb\u51fa\u7570\u5e38\n            }\n        }\n    }\n}<\/code><\/pre>\n<h3 id=\"3-%e6%b8%9b%e5%b0%91%e5%af%ab%e5%85%a5%e6%93%8d%e4%bd%9c%e7%9a%84%e9%a0%bb%e7%8e%87-cYPiNvRuTS\">3. \u6e1b\u5c11\u5beb\u5165\u64cd\u4f5c\u7684\u983b\u7387<\/h3>\n<p>\u5982\u679c\u53ef\u80fd\uff0c\u8003\u616e\u6e1b\u5c11\u5c0d\u540c\u4e00\u6587\u6a94\u7684\u5beb\u5165\u64cd\u4f5c\u983b\u7387\u3002\u9019\u53ef\u4ee5\u901a\u904e\u6279\u91cf\u8655\u7406\u5beb\u5165\u8acb\u6c42\u6216\u5408\u4f75\u591a\u500b\u5beb\u5165\u64cd\u4f5c\u4f86\u5be6\u73fe\u3002<\/p>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e4%ba%8b%e5%8b%99-cYPiNvRuTS\">4. \u4f7f\u7528\u4e8b\u52d9<\/h3>\n<p>\u5728MongoDB 4.0\u53ca\u4ee5\u4e0a\u7248\u672c\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e8b\u52d9\u4f86\u78ba\u4fdd\u591a\u500b\u64cd\u4f5c\u7684\u539f\u5b50\u6027\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u5beb\u885d\u7a81\u7684\u53ef\u80fd\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528\u4e8b\u52d9\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>const session = client.startSession();\nsession.startTransaction();\ntry {\n    \/\/ \u57f7\u884c\u591a\u500b\u5beb\u5165\u64cd\u4f5c\n    await collection1.insertOne(doc1, { session });\n    await collection2.updateOne({ _id: id }, { $set: { field: value } }, { session });\n    await session.commitTransaction();\n} catch (error) {\n    await session.abortTransaction();\n} finally {\n    session.endSession();\n}<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-cYPiNvRuTS\">\u7e3d\u7d50<\/h2>\n<p>MongoDB\u932f\u8aa4\u4ee3\u78bc112\uff08\u5beb\u885d\u7a81\uff09\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u901a\u5e38\u7531\u65bc\u591a\u500b\u5beb\u5165\u64cd\u4f5c\u540c\u6642\u5617\u8a66\u4fee\u6539\u540c\u4e00\u6587\u6a94\u6240\u5f15\u8d77\u3002\u901a\u904e\u512a\u5316\u67e5\u8a62\u3001\u5be6\u65bd\u91cd\u8a66\u908f\u8f2f\u3001\u6e1b\u5c11\u5beb\u5165\u983b\u7387\u4ee5\u53ca\u4f7f\u7528\u4e8b\u52d9\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u6216<code><a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a><\/code>\u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc112\uff08\u5beb\u885d\u7a81\uff09\uff0c\u89e3\u6c7a\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\u7684\u885d\u7a81\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-175687","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175687","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=175687"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175687\/revisions"}],"predecessor-version":[{"id":175688,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175687\/revisions\/175688"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=175687"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=175687"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=175687"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}