{"id":94112,"date":"2024-10-19T18:37:15","date_gmt":"2024-10-19T10:37:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/94112\/"},"modified":"2024-10-19T18:37:16","modified_gmt":"2024-10-19T10:37:16","slug":"oracle-redo%e7%9a%84%e4%b8%a6%e8%a1%8c%e6%a9%9f%e5%88%b6%e9%81%8b%e8%a1%8c%e4%b8%ad%e8%a6%81%e7%94%a8%e5%88%b0%e7%9a%84%e4%bb%a3%e7%a2%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/94112\/","title":{"rendered":"Oracle Redo\u7684\u4e26\u884c\u6a5f\u5236\u904b\u884c\u4e2d\u8981\u7528\u5230\u7684\u4ee3\u78bc"},"content":{"rendered":"<h1 id=\"oracle-redo%e7%9a%84%e4%b8%a6%e8%a1%8c%e6%a9%9f%e5%88%b6%e9%81%8b%e8%a1%8c%e4%b8%ad%e8%a6%81%e7%94%a8%e5%88%b0%e7%9a%84%e4%bb%a3%e7%a2%bc-fwmbalZMCO\">Oracle Redo\u7684\u4e26\u884c\u6a5f\u5236\u904b\u884c\u4e2d\u8981\u7528\u5230\u7684\u4ee3\u78bc<\/h1>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0cRedo\u65e5\u8a8c\u662f\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u548c\u6062\u5fa9\u80fd\u529b\u7684\u91cd\u8981\u7d44\u4ef6\u3002Redo\u65e5\u8a8c\u8a18\u9304\u4e86\u6240\u6709\u5c0d\u6578\u64da\u5eab\u7684\u66f4\u6539\uff0c\u9019\u4f7f\u5f97\u5728\u7cfb\u7d71\u6545\u969c\u6216\u5d29\u6f70\u5f8c\u80fd\u5920\u6062\u5fa9\u6578\u64da\u3002\u96a8\u8457\u6578\u64da\u5eab\u7684\u589e\u9577\u548c\u7528\u6236\u8acb\u6c42\u7684\u589e\u52a0\uff0cRedo\u65e5\u8a8c\u7684\u8655\u7406\u6548\u7387\u8b8a\u5f97\u81f3\u95dc\u91cd\u8981\u3002\u70ba\u4e86\u63d0\u9ad8Redo\u65e5\u8a8c\u7684\u6027\u80fd\uff0cOracle\u5f15\u5165\u4e86\u4e26\u884c\u6a5f\u5236\u3002\u672c\u6587\u5c07\u63a2\u8a0eOracle Redo\u7684\u4e26\u884c\u6a5f\u5236\u53ca\u5176\u904b\u884c\u4e2d\u6240\u9700\u7684\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"redo%e6%97%a5%e8%aa%8c%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-fwmbalZMCO\">Redo\u65e5\u8a8c\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redo\u65e5\u8a8c\u662fOracle\u6578\u64da\u5eab\u7684\u4e00\u90e8\u5206\uff0c\u4e3b\u8981\u7528\u65bc\u8a18\u9304\u6240\u6709\u5c0d\u6578\u64da\u5eab\u7684\u66f4\u6539\u3002\u9019\u4e9b\u66f4\u6539\u5305\u62ec\u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u64cd\u4f5c\u3002Redo\u65e5\u8a8c\u7684\u4e3b\u8981\u76ee\u7684\u662f\u5728\u7cfb\u7d71\u5d29\u6f70\u5f8c\u80fd\u5920\u6062\u5fa9\u6578\u64da\u3002Oracle\u4f7f\u7528\u5169\u7a2eRedo\u65e5\u8a8c\u6587\u4ef6\uff1a\u5728\u7ddaRedo\u65e5\u8a8c\u548c\u6b78\u6a94Redo\u65e5\u8a8c\u3002<\/p>\n<h2 id=\"%e4%b8%a6%e8%a1%8c%e6%a9%9f%e5%88%b6%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-fwmbalZMCO\">\u4e26\u884c\u6a5f\u5236\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u96a8\u8457\u6578\u64da\u5eab\u7684\u4f7f\u7528\u91cf\u589e\u52a0\uff0c\u55ae\u4e00\u7684Redo\u65e5\u8a8c\u5beb\u5165\u53ef\u80fd\u6210\u70ba\u6027\u80fd\u74f6\u9838\u3002\u70ba\u4e86\u89e3\u6c7a\u9019\u4e00\u554f\u984c\uff0cOracle\u5f15\u5165\u4e86Redo\u65e5\u8a8c\u7684\u4e26\u884c\u6a5f\u5236\u3002\u9019\u4e00\u6a5f\u5236\u5141\u8a31\u591a\u500b\u9032\u7a0b\u540c\u6642\u5beb\u5165Redo\u65e5\u8a8c\uff0c\u5f9e\u800c\u63d0\u9ad8\u4e86\u5beb\u5165\u6548\u7387\uff0c\u6e1b\u5c11\u4e86\u5ef6\u9072\u3002<\/p>\n<h2 id=\"%e4%b8%a6%e8%a1%8credo%e7%9a%84%e9%81%8b%e4%bd%9c%e5%8e%9f%e7%90%86-fwmbalZMCO\">\u4e26\u884cRedo\u7684\u904b\u4f5c\u539f\u7406<\/h2>\n<p>\u5728Oracle\u4e2d\uff0c\u4e26\u884cRedo\u7684\u904b\u4f5c\u539f\u7406\u4e3b\u8981\u4f9d\u8cf4\u65bc\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u591a\u9032\u7a0b\u5beb\u5165\uff1a<\/strong>Oracle\u5141\u8a31\u591a\u500b\u9032\u7a0b\u540c\u6642\u5beb\u5165Redo\u65e5\u8a8c\uff0c\u9019\u6a23\u53ef\u4ee5\u5145\u5206\u5229\u7528\u7cfb\u7d71\u8cc7\u6e90\uff0c\u63d0\u9ad8\u5beb\u5165\u901f\u5ea6\u3002<\/li>\n<li><strong>Redo\u65e5\u8a8c\u7d44\uff1a<\/strong>Redo\u65e5\u8a8c\u6587\u4ef6\u88ab\u7d44\u7e54\u6210\u7d44\uff0c\u9019\u6a23\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u6587\u4ef6\u4e2d\u9032\u884c\u4e26\u884c\u5beb\u5165\u3002<\/li>\n<li><strong>\u7de9\u885d\u5340\u7ba1\u7406\uff1a<\/strong>Oracle\u4f7f\u7528\u7de9\u885d\u5340\u4f86\u7ba1\u7406Redo\u65e5\u8a8c\u7684\u5beb\u5165\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u78c1\u789fI\/O\u64cd\u4f5c\uff0c\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%81%8b%e8%a1%8c%e4%b8%ad%e6%89%80%e9%9c%80%e7%9a%84%e4%bb%a3%e7%a2%bc%e7%a4%ba%e4%be%8b-fwmbalZMCO\">\u904b\u884c\u4e2d\u6240\u9700\u7684\u4ee3\u78bc\u793a\u4f8b<\/h2>\n<p>\u5728\u5be6\u73feRedo\u65e5\u8a8c\u7684\u4e26\u884c\u6a5f\u5236\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u4f7f\u7528\u4e00\u4e9b\u7279\u5b9a\u7684\u4ee3\u78bc\u4f86\u914d\u7f6e\u548c\u7ba1\u7406\u9019\u4e00\u6a5f\u5236\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684SQL\u4ee3\u78bc\u793a\u4f8b\uff1a<\/p>\n<pre><code>-- \u5275\u5efaRedo\u65e5\u8a8c\u7d44\nALTER DATABASE ADD LOGFILE GROUP 3 ('\/path\/to\/redo03.log') SIZE 50M;\n\n-- \u67e5\u770bRedo\u65e5\u8a8c\u7684\u72c0\u614b\nSELECT GROUP#, STATUS FROM V$LOG;\n\n-- \u914d\u7f6eRedo\u65e5\u8a8c\u7684\u4e26\u884c\u5beb\u5165\nALTER SYSTEM SET LOG_PARALLELISM=4;<\/code><\/pre>\n<p>\u4ee5\u4e0a\u4ee3\u78bc\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5275\u5efaRedo\u65e5\u8a8c\u7d44\u3001\u67e5\u770bRedo\u65e5\u8a8c\u7684\u72c0\u614b\u4ee5\u53ca\u914d\u7f6eRedo\u65e5\u8a8c\u7684\u4e26\u884c\u5beb\u5165\u3002\u9019\u4e9b\u64cd\u4f5c\u80fd\u5920\u5e6b\u52a9\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u6709\u6548\u5730\u7ba1\u7406Redo\u65e5\u8a8c\uff0c\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-fwmbalZMCO\">\u7d50\u8ad6<\/h2>\n<p>Oracle Redo\u7684\u4e26\u884c\u6a5f\u5236\u662f\u63d0\u9ad8\u6578\u64da\u5eab\u6027\u80fd\u7684\u91cd\u8981\u624b\u6bb5\u3002\u901a\u904e\u591a\u9032\u7a0b\u5beb\u5165\u3001Redo\u65e5\u8a8c\u7d44\u7684\u7ba1\u7406\u4ee5\u53ca\u7de9\u885d\u5340\u7684\u6709\u6548\u5229\u7528\uff0cOracle\u80fd\u5920\u986f\u8457\u63d0\u9ad8Redo\u65e5\u8a8c\u7684\u5beb\u5165\u6548\u7387\u3002\u4e86\u89e3\u4e26\u638c\u63e1\u9019\u4e9b\u6a5f\u5236\u53ca\u5176\u76f8\u95dc\u4ee3\u78bc\uff0c\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u4f86\u8aaa\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u9999\u6e2f\u7684\u74b0\u5883\u4e2d\u4f7f\u7528 <a href=\"https:\/\/server.hk\">VPS<\/a> \u4f86\u904b\u884cOracle\u6578\u64da\u5eab\u6709\u8208\u8da3\uff0c\u6216\u60f3\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u6e90\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle Redo\u7684\u4e26\u884c\u6a5f\u5236\u904b\u884c\u4e2d\u6240\u9700\u7684\u4ee3\u78bc\uff0c\u4e86\u89e3\u5176\u6027\u80fd\u512a\u5316\u548c\u6578\u64da\u4e00\u81f4\u6027\u7684\u91cd\u8981\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-94112","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94112","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=94112"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94112\/revisions"}],"predecessor-version":[{"id":94113,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94112\/revisions\/94113"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=94112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=94112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=94112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}