{"id":21679,"date":"2024-01-02T13:30:45","date_gmt":"2024-01-02T13:30:45","guid":{"rendered":"https:\/\/server.hk\/blog\/21679\/"},"modified":"2024-11-14T10:28:46","modified_gmt":"2024-11-14T02:28:46","slug":"how-to-fix-mongodb-error-code-87-cannotsplit","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21679\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 87 &#8211; CannotSplit"},"content":{"rendered":"<h1 id=\"how-to-fix-mongodb-error-code-87-cannotsplit-HEuTOeVPft\">\u5982\u4f55\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 87 &#8211; CannotSplit<\/h1>\n<p>MongoDB \u662f\u4e00\u500b\u6d41\u884c\u7684 NoSQL \u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u9ad8\u6027\u80fd\u3001\u53ef\u64f4\u5c55\u6027\u548c\u9748\u6d3b\u6027\u3002\u7136\u800c\uff0c\u50cf\u4efb\u4f55\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; 87 &#8211; CannotSplit\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u539f\u56e0\u4e26\u63d0\u4f9b\u9010\u6b65\u89e3\u6c7a\u65b9\u6848\u4f86\u4fee\u5fa9\u5b83\u3002<\/p>\n<h2 id=\"understanding-mongodb-error-code-87-cannotsplit-HEuTOeVPft\">\u7406\u89e3 MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 87 &#8211; CannotSplit<\/h2>\n<p>\u7576\u60a8\u9047\u5230 MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 87 &#8211; CannotSplit \u6642\uff0c\u9019\u610f\u5473\u8457 MongoDB \u5728\u57f7\u884c\u5206\u7247\u6642\u7121\u6cd5\u5206\u5272\u4e00\u500b\u5340\u584a\u3002\u5206\u7247\u662f\u5c07\u6578\u64da\u5206\u4f48\u5230\u591a\u500b\u4f3a\u670d\u5668\u4e0a\u7684\u904e\u7a0b\uff0c\u4ee5\u63d0\u9ad8\u6027\u80fd\u4e26\u8655\u7406\u5927\u578b\u6578\u64da\u96c6\u3002\u7576 MongoDB \u5617\u8a66\u5206\u5272\u4e00\u500b\u5340\u584a\u4f46\u56e0\u67d0\u4e9b\u689d\u4ef6\u672a\u6eff\u8db3\u800c\u5931\u6557\u6642\uff0c\u901a\u5e38\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\u3002<\/p>\n<h2 id=\"possible-causes-of-mongodb-error-code-87-cannotsplit-HEuTOeVPft\">MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 87 &#8211; CannotSplit \u7684\u53ef\u80fd\u539f\u56e0<\/h2>\n<p>\u6b64\u932f\u8aa4\u53ef\u80fd\u6709\u5e7e\u500b\u6f5b\u5728\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u78c1\u789f\u7a7a\u9593\u4e0d\u8db3\uff1a<\/strong>\u5982\u679c\u60a8\u7684 MongoDB \u4f3a\u670d\u5668\u7684\u78c1\u789f\u7a7a\u9593\u4e0d\u8db3\uff0c\u5247\u53ef\u80fd\u6703\u963b\u6b62 MongoDB \u5206\u5272\u5340\u584a\u3002<\/li>\n<li><strong>\u6578\u64da\u5206\u4f48\u4e0d\u5747\uff1a<\/strong>\u5982\u679c\u5206\u7247\u4e4b\u9593\u7684\u6578\u64da\u5206\u4f48\u4e0d\u5747\uff0cMongoDB \u53ef\u80fd\u6703\u5728\u5206\u5272\u5340\u584a\u6642\u9047\u5230\u56f0\u96e3\u3002<\/li>\n<li><strong>\u5927\u578b\u6587\u4ef6\uff1a<\/strong>\u5982\u679c\u60a8\u7684\u96c6\u5408\u4e2d\u6709\u5927\u578b\u6587\u4ef6\uff0cMongoDB \u53ef\u80fd\u6703\u96e3\u4ee5\u5c07\u5b83\u5011\u5206\u5272\u6210\u8f03\u5c0f\u7684\u5340\u584a\u3002<\/li>\n<li><strong>\u9ad8\u5beb\u5165\u8ca0\u8f09\uff1a<\/strong>\u5982\u679c\u60a8\u7684 MongoDB \u4f3a\u670d\u5668\u6b63\u5728\u7d93\u6b77\u9ad8\u5beb\u5165\u8ca0\u8f09\uff0c\u5247\u53ef\u80fd\u6703\u5f71\u97ff\u5206\u5272\u904e\u7a0b\u3002<\/li>\n<\/ul>\n<h2 id=\"fixing-mongodb-error-code-87-cannotsplit-HEuTOeVPft\">\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 87 &#8211; CannotSplit<\/h2>\n<p>\u8981\u89e3\u6c7a MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 87 &#8211; CannotSplit\uff0c\u8acb\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u64cd\u4f5c\uff1a<\/p>\n<h3 id=\"step-1-check-disk-space-HEuTOeVPft\">\u6b65\u9a5f 1\uff1a\u6aa2\u67e5\u78c1\u789f\u7a7a\u9593<\/h3>\n<p>\u78ba\u4fdd\u60a8\u7684 MongoDB \u4f3a\u670d\u5668\u6709\u8db3\u5920\u7684\u78c1\u789f\u7a7a\u9593\u3002\u60a8\u53ef\u4ee5\u5728 MongoDB shell \u4e2d\u904b\u884c\u4ee5\u4e0b\u547d\u4ee4\u4f86\u6aa2\u67e5\uff1a<\/p>\n<p><code>db.runCommand({ \"serverStatus\": 1 })<\/code><\/p>\n<p>\u5982\u679c &#8220;storageSize&#8221; \u7684\u503c\u63a5\u8fd1 &#8220;maxSize&#8221; \u7684\u503c\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u91cb\u653e\u78c1\u789f\u7a7a\u9593\u6216\u70ba\u60a8\u7684 MongoDB \u4f3a\u670d\u5668\u5206\u914d\u66f4\u591a\u5b58\u5132\u7a7a\u9593\u3002<\/p>\n<h3 id=\"step-2-balance-data-distribution-HEuTOeVPft\">\u6b65\u9a5f 2\uff1a\u5e73\u8861\u6578\u64da\u5206\u4f48<\/h3>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u60a8\u7684\u5206\u7247\u4e4b\u9593\u7684\u6578\u64da\u5206\u4f48\uff1a<\/p>\n<p><code>sh.status()<\/code><\/p>\n<p>\u5982\u679c\u6578\u64da\u5206\u4f48\u4e0d\u5747\uff0c\u60a8\u53ef\u4ee5\u901a\u904e\u904b\u884c\u4ee5\u4e0b\u547d\u4ee4\u4f86\u91cd\u65b0\u5e73\u8861\uff1a<\/p>\n<p><code>sh.rebalanceCollection(\"database.collection\")<\/code><\/p>\n<p>\u5c07 &#8220;database.collection&#8221; \u66ff\u63db\u70ba\u60a8\u7684\u6578\u64da\u5eab\u548c\u96c6\u5408\u7684\u540d\u7a31\u3002<\/p>\n<h3 id=\"step-3-split-large-documents-HEuTOeVPft\">\u6b65\u9a5f 3\uff1a\u5206\u5272\u5927\u578b\u6587\u4ef6<\/h3>\n<p>\u5982\u679c\u60a8\u7684\u96c6\u5408\u4e2d\u6709\u5927\u578b\u6587\u4ef6\uff0c\u8003\u616e\u624b\u52d5\u5c07\u5b83\u5011\u5206\u5272\u6210\u8f03\u5c0f\u7684\u5340\u584a\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u5206\u5272\u4e00\u500b\u5340\u584a\uff1a<\/p>\n<p><code>sh.splitFind(\"database.collection\", { \"_id\": \"chunkId\" })<\/code><\/p>\n<p>\u5c07 &#8220;database.collection&#8221; \u66ff\u63db\u70ba\u60a8\u7684\u6578\u64da\u5eab\u548c\u96c6\u5408\u7684\u540d\u7a31\uff0c\u4e26\u5c07 &#8220;chunkId&#8221; \u66ff\u63db\u70ba\u60a8\u8981\u5206\u5272\u7684\u5340\u584a\u7684 ID\u3002<\/p>\n<h3 id=\"step-4-reduce-write-load-HEuTOeVPft\">\u6b65\u9a5f 4\uff1a\u6e1b\u5c11\u5beb\u5165\u8ca0\u8f09<\/h3>\n<p>\u5982\u679c\u60a8\u7684 MongoDB \u4f3a\u670d\u5668\u6b63\u5728\u7d93\u6b77\u9ad8\u5beb\u5165\u8ca0\u8f09\uff0c\u8003\u616e\u512a\u5316\u60a8\u7684\u5beb\u5165\u64cd\u4f5c\u6216\u64f4\u5c55\u60a8\u7684\u57fa\u790e\u8a2d\u65bd\u4ee5\u61c9\u5c0d\u8ca0\u8f09\u3002<\/p>\n<h2 id=\"summary-HEuTOeVPft\">\u7e3d\u7d50<\/h2>\n<p>\u7e3d\u4e4b\uff0cMongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 87 &#8211; CannotSplit \u5728 MongoDB \u7121\u6cd5\u5728\u5206\u7247\u904e\u7a0b\u4e2d\u5206\u5272\u5340\u584a\u6642\u767c\u751f\u3002\u6b64\u932f\u8aa4\u53ef\u80fd\u7531\u65bc\u78c1\u789f\u7a7a\u9593\u4e0d\u8db3\u3001\u6578\u64da\u5206\u4f48\u4e0d\u5747\u3001\u5927\u578b\u6587\u4ef6\u6216\u9ad8\u5beb\u5165\u8ca0\u8f09\u5f15\u8d77\u3002\u8981\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u8acb\u78ba\u4fdd\u6709\u8db3\u5920\u7684\u78c1\u789f\u7a7a\u9593\u3001\u5e73\u8861\u6578\u64da\u5206\u4f48\u3001\u5206\u5272\u5927\u578b\u6587\u4ef6\u4e26\u6e1b\u5c11\u5beb\u5165\u8ca0\u8f09\u3002\u82e5\u9700\u53ef\u9760\u4e14\u9ad8\u6027\u80fd\u7684 VPS \u6258\u7ba1\u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8003\u616e <a href=\"https:\/\/server.hk\">Server.HK<\/a>\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-21679","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21679","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=21679"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21679\/revisions"}],"predecessor-version":[{"id":23728,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21679\/revisions\/23728"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21679"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21679"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21679"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}