{"id":21661,"date":"2024-01-02T13:12:26","date_gmt":"2024-01-02T13:12:26","guid":{"rendered":"https:\/\/server.hk\/blog\/21661\/"},"modified":"2024-11-14T10:29:03","modified_gmt":"2024-11-14T02:29:03","slug":"how-to-fix-mongodb-error-code-68-indexalreadyexists","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21661\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 68 &#8211; IndexAlreadyExists"},"content":{"rendered":"<h1 id=\"how-to-fix-mongodb-error-code-68-indexalreadyexists-JNEuHAMPPV\">\u5982\u4f55\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 68 &#8211; IndexAlreadyExists<\/h1>\n<p>MongoDB \u662f\u4e00\u500b\u53d7\u6b61\u8fce\u7684 NoSQL \u8cc7\u6599\u5eab\uff0c\u63d0\u4f9b\u9ad8\u6548\u80fd\u3001\u53ef\u64f4\u5c55\u6027\u548c\u9748\u6d3b\u6027\u3002\u7136\u800c\uff0c\u8207\u4efb\u4f55\u5176\u4ed6\u8edf\u4ef6\u4e00\u6a23\uff0c\u5b83\u53ef\u80fd\u6703\u9047\u5230\u9700\u8981\u89e3\u6c7a\u7684\u932f\u8aa4\u3002\u5176\u4e2d\u4e00\u500b\u932f\u8aa4\u662f MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 68 &#8211; IndexAlreadyExists\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u542b\u7fa9\u4ee5\u53ca\u5982\u4f55\u4fee\u5fa9\u5b83\u3002<\/p>\n<h2 id=\"understanding-mongodb-error-code-68-indexalreadyexists-JNEuHAMPPV\">\u7406\u89e3 MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 68 &#8211; IndexAlreadyExists<\/h2>\n<p>MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 68 &#8211; IndexAlreadyExists \u767c\u751f\u5728\u60a8\u5617\u8a66\u70ba\u96c6\u5408\u5275\u5efa\u7d22\u5f15\u6642\uff0c\u4f46\u5177\u6709\u76f8\u540c\u540d\u7a31\u7684\u7d22\u5f15\u5df2\u7d93\u5b58\u5728\u3002MongoDB \u5f37\u5236\u5728\u540c\u4e00\u96c6\u5408\u5167\u7684\u7d22\u5f15\u540d\u7a31\u552f\u4e00\uff0c\u56e0\u6b64\u5982\u679c\u60a8\u5617\u8a66\u5275\u5efa\u4e00\u500b\u5df2\u88ab\u4f7f\u7528\u7684\u7d22\u5f15\u540d\u7a31\uff0c\u5c07\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/p>\n<p>\u6b64\u932f\u8aa4\u53ef\u80fd\u7531\u591a\u7a2e\u539f\u56e0\u5f15\u8d77\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u610f\u5916\u91cd\u8907\u7d22\u5f15\u5275\u5efa\u547d\u4ee4<\/li>\n<li>\u61c9\u7528\u7a0b\u5f0f\u6216\u8173\u672c\u932f\u8aa4<\/li>\n<li>\u591a\u500b\u5ba2\u6236\u7aef\u6216\u9032\u7a0b\u540c\u6642\u5617\u8a66\u5275\u5efa\u76f8\u540c\u7d22\u5f15\u7684\u4e26\u767c\u554f\u984c<\/li>\n<\/ul>\n<h2 id=\"fixing-mongodb-error-code-68-indexalreadyexists-JNEuHAMPPV\">\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 68 &#8211; IndexAlreadyExists<\/h2>\n<p>\u8981\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 68 &#8211; IndexAlreadyExists\uff0c\u60a8\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\uff1a<\/p>\n<h3 id=\"step-1-identify-the-existing-index-JNEuHAMPPV\">\u6b65\u9a5f 1\uff1a\u8b58\u5225\u73fe\u6709\u7d22\u5f15<\/h3>\n<p>\u7b2c\u4e00\u6b65\u662f\u8b58\u5225\u5c0e\u81f4\u932f\u8aa4\u7684\u73fe\u6709\u7d22\u5f15\u3002\u60a8\u53ef\u4ee5\u5728 MongoDB shell \u4e2d\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5217\u51fa\u96c6\u5408\u4e2d\u7684\u6240\u6709\u7d22\u5f15\uff1a<\/p>\n<p><code>db.collection.getIndexes()<\/code><\/p>\n<p>\u6b64\u547d\u4ee4\u5c07\u8fd4\u56de\u4e00\u500b\u5305\u542b\u7d22\u5f15\u540d\u7a31\u7684\u7d22\u5f15\u5217\u8868\u3002\u67e5\u627e\u8207\u60a8\u5617\u8a66\u5275\u5efa\u7684\u7d22\u5f15\u540c\u540d\u7684\u7d22\u5f15\u3002<\/p>\n<h3 id=\"step-2-drop-the-existing-index-JNEuHAMPPV\">\u6b65\u9a5f 2\uff1a\u522a\u9664\u73fe\u6709\u7d22\u5f15<\/h3>\n<p>\u8b58\u5225\u51fa\u73fe\u6709\u7684\u7d22\u5f15\u5f8c\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5c07\u5176\u522a\u9664\uff1a<\/p>\n<p><code>db.collection.dropIndex(\"index_name\")<\/code><\/p>\n<p>\u5c07 &#8220;index_name&#8221; \u66ff\u63db\u70ba\u73fe\u6709\u7d22\u5f15\u7684\u540d\u7a31\u3002\u6b64\u547d\u4ee4\u5c07\u5f9e\u96c6\u5408\u4e2d\u79fb\u9664\u8a72\u7d22\u5f15\u3002<\/p>\n<h3 id=\"step-3-create-the-index-again-JNEuHAMPPV\">\u6b65\u9a5f 3\uff1a\u91cd\u65b0\u5275\u5efa\u7d22\u5f15<\/h3>\n<p>\u522a\u9664\u73fe\u6709\u7d22\u5f15\u5f8c\uff0c\u60a8\u73fe\u5728\u53ef\u4ee5\u4f7f\u7528\u6240\u9700\u7684\u540d\u7a31\u91cd\u65b0\u5275\u5efa\u7d22\u5f15\u3002\u8acb\u78ba\u4fdd\u9078\u64c7\u4e00\u500b\u552f\u4e00\u4e14\u672a\u88ab\u4f7f\u7528\u7684\u540d\u7a31\u3002<\/p>\n<p><code>db.collection.createIndex({ field: 1 })<\/code><\/p>\n<p>\u5c07 &#8220;field&#8221; \u66ff\u63db\u70ba\u60a8\u5e0c\u671b\u5275\u5efa\u7d22\u5f15\u7684\u6b04\u4f4d\u540d\u7a31\u3002&#8221;1&#8243; \u4ee3\u8868\u5347\u5e8f\u6392\u5e8f\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 &#8220;-1&#8221; \u8868\u793a\u964d\u5e8f\u6392\u5e8f\u3002<\/p>\n<h2 id=\"summary-JNEuHAMPPV\">\u7e3d\u7d50<\/h2>\n<p>\u7e3d\u7d50\u4f86\u8aaa\uff0cMongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 68 &#8211; IndexAlreadyExists \u767c\u751f\u5728\u60a8\u5617\u8a66\u5275\u5efa\u4e00\u500b\u5df2\u88ab\u4f7f\u7528\u7684\u7d22\u5f15\u540d\u7a31\u6642\u3002\u8981\u89e3\u6c7a\u9019\u500b\u932f\u8aa4\uff0c\u60a8\u9700\u8981\u8b58\u5225\u73fe\u6709\u7d22\u5f15\uff0c\u5c07\u5176\u522a\u9664\uff0c\u7136\u5f8c\u4f7f\u7528\u552f\u4e00\u540d\u7a31\u91cd\u65b0\u5275\u5efa\u7d22\u5f15\u3002\u5982\u679c\u60a8\u5728\u4f7f\u7528 MongoDB \u6642\u9047\u5230\u6b64\u932f\u8aa4\uff0cServer.HK \u63d0\u4f9b\u53ef\u9760\u4e14\u9ad8\u6548\u80fd\u7684 VPS \u8a17\u7ba1\u89e3\u6c7a\u65b9\u6848\u3002\u8a2a\u554f <a href=\"https:\/\/server.hk\">server.hk<\/a> \u4e86\u89e3\u66f4\u591a\u6709\u95dc\u6211\u5011\u670d\u52d9\u7684\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-21661","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21661","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=21661"}],"version-history":[{"count":2,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21661\/revisions"}],"predecessor-version":[{"id":23755,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21661\/revisions\/23755"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21661"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21661"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21661"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}