{"id":21531,"date":"2024-01-02T10:58:22","date_gmt":"2024-01-02T10:58:22","guid":{"rendered":"https:\/\/server.hk\/blog\/21531\/"},"modified":"2024-11-14T10:31:11","modified_gmt":"2024-11-14T02:31:11","slug":"mongodb-glossary-journal","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21531\/","title":{"rendered":"MongoDB \u8a5e\u5f59\u8868 &#8211; \u65e5\u8a8c"},"content":{"rendered":"<h1 id=\"mongodb-glossary-journal-fUAFIqoijS\">MongoDB \u8a5e\u5f59\u8868 &#8211; \u65e5\u8a8c (Journal)<\/h1>\n<p>MongoDB \u4ee5\u5176\u9748\u6d3b\u6027\u3001\u53ef\u64f4\u5c55\u6027\u548c\u6613\u7528\u6027\u6210\u70ba\u6d41\u884c\u7684\u6578\u64da\u5eab\u9078\u64c7\u3002\u8207\u4efb\u4f55\u6578\u64da\u5eab\u7cfb\u7d71\u4e00\u6a23\uff0cMongoDB \u6709\u5176\u7279\u5b9a\u7684\u8853\u8a9e\uff0c\u4f7f\u7528\u8005\u61c9\u8a72\u719f\u6089\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e\u5176\u4e2d\u4e00\u500b\u8853\u8a9e \u2014\u2014 \u65e5\u8a8c (Journal)\u3002<\/p>\n<h2 id=\"what-is-journaling-in-mongodb-fUAFIqoijS\">\u4ec0\u9ebc\u662f MongoDB \u4e2d\u7684\u65e5\u8a8c\u8a18\u9304 (Journaling)\uff1f<\/h2>\n<p>\u65e5\u8a8c\u8a18\u9304 (Journaling) \u662f MongoDB \u7684\u4e00\u500b\u529f\u80fd\uff0c\u63d0\u4f9b\u6301\u4e45\u6027\u53ca\u5d29\u6f70\u6062\u5fa9\u3002\u5b83\u78ba\u4fdd\u6578\u64da\u5728\u7cfb\u7d71\u6545\u969c\u6216\u65b7\u96fb\u6642\u4e0d\u6703\u4e1f\u5931\u3002\u7576\u555f\u7528\u65e5\u8a8c\u8a18\u9304\u6642\uff0cMongoDB \u5c07\u6240\u6709\u5c0d\u6578\u64da\u5eab\u7684\u66f4\u6539\u5148\u5beb\u5165\u65e5\u8a8c\u6587\u4ef6\uff0c\u518d\u5c07\u5176\u61c9\u7528\u5230\u6578\u64da\u6587\u4ef6\u3002<\/p>\n<p>\u65e5\u8a8c\u6587\u4ef6\u662f\u4e00\u500b\u5faa\u74b0\u7de9\u885d\u5340\uff0c\u6309\u9806\u5e8f\u5b58\u5132\u5beb\u64cd\u4f5c\u3002\u5b83\u5145\u7576\u9810\u5beb\u65e5\u8a8c\uff0c\u4f7f MongoDB \u5728\u5d29\u6f70\u6642\u80fd\u5920\u6062\u5fa9\u6578\u64da\u3002\u65e5\u8a8c\u6587\u4ef6\u5b58\u5132\u5728\u78c1\u789f\u4e0a\uff0c\u8207\u6578\u64da\u6587\u4ef6\u5206\u958b\u3002<\/p>\n<h2 id=\"how-does-journaling-work-fUAFIqoijS\">\u65e5\u8a8c\u8a18\u9304\u5982\u4f55\u904b\u4f5c\uff1f<\/h2>\n<p>\u7576\u5728 MongoDB \u4e2d\u57f7\u884c\u5beb\u64cd\u4f5c\u6642\uff0c\u9996\u5148\u6703\u5c07\u5176\u5beb\u5165\u65e5\u8a8c\u6587\u4ef6\u3002\u4e00\u65e6\u5beb\u5165\u64cd\u4f5c\u5728\u65e5\u8a8c\u4e2d\u78ba\u8a8d\uff0c\u624d\u6703\u5c07\u5176\u61c9\u7528\u5230\u6578\u64da\u6587\u4ef6\u3002\u9019\u78ba\u4fdd\u5373\u4f7f\u7cfb\u7d71\u5728\u5beb\u5165\u6578\u64da\u6587\u4ef6\u524d\u5d29\u6f70\uff0c\u4ecd\u53ef\u5f9e\u65e5\u8a8c\u6587\u4ef6\u4e2d\u6062\u5fa9\u66f4\u6539\u3002<\/p>\n<p>\u65e5\u8a8c\u8a18\u9304\u8207 WiredTiger \u5b58\u5132\u5f15\u64ce\u914d\u5408\u4f7f\u7528\uff0cWiredTiger \u662f\u81ea MongoDB 3.2 \u7248\u672c\u4ee5\u4f86\u7684\u9ed8\u8a8d\u5b58\u5132\u5f15\u64ce\u3002WiredTiger \u5b58\u5132\u5f15\u64ce\u652f\u6301\u65e5\u8a8c\u8a18\u9304\uff0c\u4e26\u78ba\u4fdd\u5beb\u64cd\u4f5c\u7684\u6301\u4e45\u6027\u3002<\/p>\n<h2 id=\"advantages-of-journaling-fUAFIqoijS\">\u65e5\u8a8c\u8a18\u9304\u7684\u512a\u52e2<\/h2>\n<p>\u65e5\u8a8c\u8a18\u9304\u5728 MongoDB \u4e2d\u63d0\u4f9b\u4e86\u591a\u9805\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u6301\u4e45\u6027\uff1a<\/strong>\u65e5\u8a8c\u8a18\u9304\u78ba\u4fdd\u6578\u64da\u5728\u5d29\u6f70\u6642\u4e0d\u6703\u4e1f\u5931\u3002\u5b83\u70ba\u5beb\u64cd\u4f5c\u63d0\u4f9b\u4e86\u5b89\u5168\u7db2\uff0c\u4ee4 MongoDB \u6210\u70ba\u8981\u6c42\u6578\u64da\u6301\u4e45\u6027\u7684\u61c9\u7528\u7a0b\u5f0f\u7684\u53ef\u9760\u9078\u64c7\u3002<\/li>\n<li><strong>\u5d29\u6f70\u6062\u5fa9\uff1a<\/strong>\u82e5\u7cfb\u7d71\u767c\u751f\u6545\u969c\uff0cMongoDB \u53ef\u4ee5\u5f9e\u65e5\u8a8c\u6587\u4ef6\u4e2d\u6062\u5fa9\u6578\u64da\uff0c\u5f9e\u800c\u6e1b\u5c11\u505c\u6a5f\u6642\u9593\u4e26\u7dad\u8b77\u6578\u64da\u5b8c\u6574\u6027\u3002<\/li>\n<li><strong>\u6027\u80fd\u63d0\u5347\uff1a<\/strong>\u96d6\u7136\u65e5\u8a8c\u8a18\u9304\u6703\u70ba\u5beb\u64cd\u4f5c\u589e\u52a0\u4e00\u4e9b\u958b\u92b7\uff0c\u4f46\u901a\u904e\u7e2e\u77ed\u5d29\u6f70\u6062\u5fa9\u6240\u9700\u7684\u6642\u9593\uff0c\u63d0\u5347\u4e86 MongoDB \u7684\u6574\u9ad4\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"enabling-journaling-in-mongodb-fUAFIqoijS\">\u5728 MongoDB \u4e2d\u555f\u7528\u65e5\u8a8c\u8a18\u9304<\/h2>\n<p>\u5728 MongoDB \u4e2d\uff0c\u65e5\u8a8c\u8a18\u9304\u9ed8\u8a8d\u662f\u555f\u7528\u7684\u3002\u4e0d\u904e\uff0c\u60a8\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u7981\u7528\u65e5\u8a8c\u8a18\u9304\u3002\u8981\u7981\u7528\u65e5\u8a8c\u8a18\u9304\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 `&#8211;nojournal` \u9078\u9805\u4f86\u555f\u52d5 MongoDB 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