{"id":83773,"date":"2024-10-17T01:59:16","date_gmt":"2024-10-16T17:59:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/83773\/"},"modified":"2024-10-17T01:59:16","modified_gmt":"2024-10-16T17:59:16","slug":"ora-02848-%e7%95%b0%e6%ad%a5-i-o-%e5%8c%85%e6%9c%aa%e9%81%8b%e8%a1%8c-oracle%e5%a0%b1%e9%8c%af%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/83773\/","title":{"rendered":"ORA-02848: \u7570\u6b65 I\/O \u5305\u672a\u904b\u884c ORACLE\u5831\u932f\u6545\u969c\u4fee\u5fa9\u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-02848-%e7%95%b0%e6%ad%a5-i-o-%e5%8c%85%e6%9c%aa%e9%81%8b%e8%a1%8c-oracle%e5%a0%b1%e9%8c%af%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86-rapquJuvEz\">ORA-02848: \u7570\u6b65 I\/O \u5305\u672a\u904b\u884c ORACLE\u5831\u932f\u6545\u969c\u4fee\u5fa9\u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528Oracle\u6578\u64da\u5eab\u7684\u904e\u7a0b\u4e2d\uff0c\u4f7f\u7528\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662fORA-02848\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207\u7570\u6b65I\/O\uff08Asynchronous I\/O\uff09\u6709\u95dc\uff0c\u4e26\u4e14\u53ef\u80fd\u6703\u5f71\u97ff\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eORA-02848\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u4fee\u5fa9\u65b9\u6cd5\uff0c\u5e6b\u52a9\u4f7f\u7528\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002<\/p>\n<h2 id=\"ora-02848%e7%9a%84%e5%8e%9f%e5%9b%a0-rapquJuvEz\">ORA-02848\u7684\u539f\u56e0<\/h2>\n<p>ORA-02848\u932f\u8aa4\u7684\u4e3b\u8981\u539f\u56e0\u662fOracle\u6578\u64da\u5eab\u5728\u5617\u8a66\u555f\u7528\u7570\u6b65I\/O\u6642\uff0c\u767c\u73fe\u76f8\u95dc\u7684I\/O\u5305\u672a\u904b\u884c\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\u4e0b\uff1a<\/p>\n<ul>\n<li><strong>\u64cd\u4f5c\u7cfb\u7d71\u4e0d\u652f\u6301\u7570\u6b65I\/O\uff1a<\/strong>\u67d0\u4e9b\u64cd\u4f5c\u7cfb\u7d71\u53ef\u80fd\u4e0d\u652f\u6301Oracle\u6240\u9700\u7684\u7570\u6b65I\/O\u529f\u80fd\uff0c\u5c0e\u81f4\u8a72\u529f\u80fd\u7121\u6cd5\u6b63\u5e38\u904b\u884c\u3002<\/li>\n<li><strong>\u914d\u7f6e\u554f\u984c\uff1a<\/strong>\u5982\u679cOracle\u6578\u64da\u5eab\u7684\u914d\u7f6e\u4e0d\u6b63\u78ba\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u7570\u6b65I\/O\u7121\u6cd5\u555f\u7528\u3002<\/li>\n<li><strong>\u7f3a\u5c11\u5fc5\u8981\u7684\u5eab\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u7f3a\u5c11\u5fc5\u8981\u7684\u5eab\u6587\u4ef6\u6216\u9a45\u52d5\u7a0b\u5e8f\u4e5f\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"ora-02848%e7%9a%84%e5%bd%b1%e9%9f%bf-rapquJuvEz\">ORA-02848\u7684\u5f71\u97ff<\/h2>\n<p>\u7576\u51fa\u73feORA-02848\u932f\u8aa4\u6642\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u53ef\u80fd\u6703\u53d7\u5230\u5f71\u97ff\uff0c\u5177\u9ad4\u8868\u73fe\u70ba\uff1a<\/p>\n<ul>\n<li><strong>\u67e5\u8a62\u901f\u5ea6\u8b8a\u6162\uff1a<\/strong>\u7570\u6b65I\/O\u7684\u5931\u6548\u53ef\u80fd\u5c0e\u81f4\u67e5\u8a62\u548c\u6578\u64da\u8655\u7406\u901f\u5ea6\u8b8a\u6162\u3002<\/li>\n<li><strong>\u7cfb\u7d71\u7a69\u5b9a\u6027\u4e0b\u964d\uff1a<\/strong>\u5728\u9ad8\u8ca0\u8f09\u60c5\u6cc1\u4e0b\uff0c\u7cfb\u7d71\u53ef\u80fd\u6703\u8b8a\u5f97\u4e0d\u7a69\u5b9a\uff0c\u751a\u81f3\u51fa\u73fe\u5d29\u6f70\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u6d6a\u8cbb\uff1a<\/strong>\u7531\u65bc\u7121\u6cd5\u6709\u6548\u5229\u7528I\/O\u8cc7\u6e90\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u8cc7\u6e90\u7684\u6d6a\u8cbb\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bf%ae%e5%be%a9ora-02848%e7%9a%84%e6%ad%a5%e9%a9%9f-rapquJuvEz\">\u4fee\u5fa9ORA-02848\u7684\u6b65\u9a5f<\/h2>\n<p>\u4fee\u5fa9ORA-02848\u932f\u8aa4\u7684\u904e\u7a0b\u53ef\u4ee5\u5206\u70ba\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e6%93%8d%e4%bd%9c%e7%b3%bb%e7%b5%b1%e6%94%af%e6%8c%81-rapquJuvEz\">1. \u6aa2\u67e5\u64cd\u4f5c\u7cfb\u7d71\u652f\u6301<\/h3>\n<p>\u9996\u5148\uff0c\u78ba\u8a8d\u60a8\u7684\u64cd\u4f5c\u7cfb\u7d71\u662f\u5426\u652f\u6301\u7570\u6b65I\/O\u3002\u53ef\u4ee5\u67e5\u95b1Oracle\u5b98\u65b9\u6587\u6a94\uff0c\u4e86\u89e3\u652f\u6301\u7684\u64cd\u4f5c\u7cfb\u7d71\u7248\u672c\u548c\u914d\u7f6e\u8981\u6c42\u3002<\/p>\n<h3 id=\"2-%e6%aa%a2%e6%9f%a5oracle%e9%85%8d%e7%bd%ae-rapquJuvEz\">2. \u6aa2\u67e5Oracle\u914d\u7f6e<\/h3>\n<p>\u6aa2\u67e5Oracle\u6578\u64da\u5eab\u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u78ba\u4fdd\u7570\u6b65I\/O\u529f\u80fd\u5df2\u6b63\u78ba\u555f\u7528\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u6aa2\u67e5\u914d\u7f6e\uff1a<\/p>\n<pre><code>SELECT value FROM v$parameter WHERE name = 'disk_asynch_io';<\/code><\/pre>\n<p>\u5982\u679c\u8fd4\u56de\u503c\u70ba&#8217;FALSE&#8217;\uff0c\u5247\u9700\u8981\u5c07\u5176\u8a2d\u7f6e\u70ba&#8217;TRUE&#8217;\uff0c\u4ee5\u555f\u7528\u7570\u6b65I\/O\u3002<\/p>\n<h3 id=\"3-%e6%9b%b4%e6%96%b0%e6%88%96%e5%ae%89%e8%a3%9d%e5%bf%85%e8%a6%81%e7%9a%84%e5%ba%ab-rapquJuvEz\">3. \u66f4\u65b0\u6216\u5b89\u88dd\u5fc5\u8981\u7684\u5eab<\/h3>\n<p>\u78ba\u4fdd\u6240\u6709\u5fc5\u8981\u7684\u5eab\u548c\u9a45\u52d5\u7a0b\u5e8f\u90fd\u5df2\u6b63\u78ba\u5b89\u88dd\u3002\u5982\u679c\u7f3a\u5c11\u67d0\u4e9b\u6587\u4ef6\uff0c\u8acb\u6839\u64da\u64cd\u4f5c\u7cfb\u7d71\u7684\u8981\u6c42\u9032\u884c\u5b89\u88dd\u6216\u66f4\u65b0\u3002<\/p>\n<h3 id=\"4-%e9%87%8d%e5%95%9f%e6%95%b8%e6%93%9a%e5%ba%ab-rapquJuvEz\">4. \u91cd\u555f\u6578\u64da\u5eab<\/h3>\n<p>\u5728\u5b8c\u6210\u4e0a\u8ff0\u6b65\u9a5f\u5f8c\uff0c\u91cd\u555fOracle\u6578\u64da\u5eab\u4ee5\u4f7f\u66f4\u6539\u751f\u6548\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u9032\u884c\u91cd\u555f\uff1a<\/p>\n<pre><code>SHUTDOWN IMMEDIATE;\nSTARTUP;<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-rapquJuvEz\">\u7d50\u8ad6<\/h2>\n<p>ORA-02848\u932f\u8aa4\u53ef\u80fd\u6703\u5c0dOracle\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u9020\u6210\u5f71\u97ff\uff0c\u4f46\u901a\u904e\u6aa2\u67e5\u64cd\u4f5c\u7cfb\u7d71\u652f\u6301\u3001\u914d\u7f6eOracle\u3001\u66f4\u65b0\u5fc5\u8981\u7684\u5eab\u4ee5\u53ca\u91cd\u555f\u6578\u64da\u5eab\u7b49\u6b65\u9a5f\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u4e86\u89e3\u9019\u4e9b\u6545\u969c\u6392\u9664\u6b65\u9a5f\u5c07\u6709\u52a9\u65bc\u4f7f\u7528\u8005\u5728\u9047\u5230\u985e\u4f3c\u554f\u984c\u6642\u8fc5\u901f\u61c9\u5c0d\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> 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