{"id":95466,"date":"2024-10-20T01:17:17","date_gmt":"2024-10-19T17:17:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95466\/"},"modified":"2024-10-20T01:17:17","modified_gmt":"2024-10-19T17:17:17","slug":"oracle%e6%95%b8%e6%93%9a%e5%ba%abash%e5%92%8cawr%e7%9a%84%e7%b0%a1%e5%96%ae%e4%bb%8b%e7%b4%b9","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95466\/","title":{"rendered":"Oracle\u6578\u64da\u5eabASH\u548cAWR\u7684\u7c21\u55ae\u4ecb\u7d39"},"content":{"rendered":"<h1 id=\"oracle%e6%95%b8%e6%93%9a%e5%ba%abash%e5%92%8cawr%e7%9a%84%e7%b0%a1%e5%96%ae%e4%bb%8b%e7%b4%b9-SJEMyUbRzL\">Oracle\u6578\u64da\u5eabASH\u548cAWR\u7684\u7c21\u55ae\u4ecb\u7d39<\/h1>\n<p>\u5728\u7ba1\u7406Oracle\u6578\u64da\u5eab\u6642\uff0c\u6027\u80fd\u76e3\u63a7\u662f\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\u7684\u95dc\u9375\u3002Oracle\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\u4f86\u5e6b\u52a9DBA\uff08\u6578\u64da\u5eab\u7ba1\u7406\u54e1\uff09\u9032\u884c\u6027\u80fd\u5206\u6790\uff0c\u5176\u4e2d\u6700\u91cd\u8981\u7684\u5169\u500b\u5de5\u5177\u662fASH\uff08Active Session History\uff09\u548cAWR\uff08Automatic Workload Repository\uff09\u3002\u672c\u6587\u5c07\u5c0d\u9019\u5169\u8005\u9032\u884c\u7c21\u55ae\u4ecb\u7d39\uff0c\u5e6b\u52a9\u8b80\u8005\u7406\u89e3\u5176\u529f\u80fd\u53ca\u4f7f\u7528\u5834\u666f\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afawr%ef%bc%9f-SJEMyUbRzL\">\u4ec0\u9ebc\u662fAWR\uff1f<\/h2>\n<p>AWR\u662fOracle\u6578\u64da\u5eab\u7684\u4e00\u500b\u81ea\u52d5\u5de5\u4f5c\u8ca0\u8f09\u5eab\uff0c\u4e3b\u8981\u7528\u65bc\u6536\u96c6\u548c\u5b58\u5132\u6578\u64da\u5eab\u6027\u80fd\u6578\u64da\u3002AWR\u6bcf\u9694\u4e00\u6bb5\u6642\u9593\uff08\u9ed8\u8a8d\u70ba\u6bcf60\u5206\u9418\uff09\u6703\u81ea\u52d5\u751f\u6210\u5feb\u7167\uff0c\u4e26\u5c07\u9019\u4e9b\u5feb\u7167\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\u3002\u9019\u4e9b\u5feb\u7167\u5305\u542b\u4e86\u7cfb\u7d71\u7684\u5404\u7a2e\u6027\u80fd\u6307\u6a19\uff0c\u5982CPU\u4f7f\u7528\u7387\u3001\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u3001I\/O\u64cd\u4f5c\u7b49\u3002<\/p>\n<h3 id=\"awr%e7%9a%84%e4%b8%bb%e8%a6%81%e5%8a%9f%e8%83%bd-SJEMyUbRzL\">AWR\u7684\u4e3b\u8981\u529f\u80fd<\/h3>\n<ul>\n<li><strong>\u6027\u80fd\u5831\u544a\uff1a<\/strong>AWR\u80fd\u751f\u6210\u8a73\u7d30\u7684\u6027\u80fd\u5831\u544a\uff0c\u5e6b\u52a9DBA\u8b58\u5225\u6027\u80fd\u74f6\u9838\u3002<\/li>\n<li><strong>\u6b77\u53f2\u6578\u64da\u5206\u6790\uff1a<\/strong>\u901a\u904e\u5c0d\u6bd4\u4e0d\u540c\u6642\u9593\u6bb5\u7684\u5feb\u7167\uff0cDBA\u53ef\u4ee5\u5206\u6790\u6027\u80fd\u8b8a\u5316\u7684\u8da8\u52e2\u3002<\/li>\n<li><strong>\u554f\u984c\u8a3a\u65b7\uff1a<\/strong>AWR\u63d0\u4f9b\u4e86\u591a\u7a2e\u8a3a\u65b7\u5de5\u5177\uff0c\u5e6b\u52a9DBA\u5feb\u901f\u5b9a\u4f4d\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afash%ef%bc%9f-SJEMyUbRzL\">\u4ec0\u9ebc\u662fASH\uff1f<\/h2>\n<p>ASH\u662fOracle\u7684\u4e00\u500b\u6d3b\u8e8d\u6703\u8a71\u6b77\u53f2\u8a18\u9304\uff0c\u4e3b\u8981\u7528\u65bc\u6355\u7372\u7576\u524d\u6d3b\u8e8d\u6703\u8a71\u7684\u72c0\u614b\u3002\u8207AWR\u4e0d\u540c\uff0cASH\u5c08\u6ce8\u65bc\u5373\u6642\u6027\u80fd\u76e3\u63a7\uff0c\u80fd\u5920\u63d0\u4f9b\u66f4\u7d30\u7dfb\u7684\u6703\u8a71\u7d1a\u5225\u7684\u6578\u64da\u3002ASH\u6578\u64da\u662f\u5f9eV$ACTIVE_SESSION_HISTORY\u8996\u5716\u4e2d\u7372\u53d6\u7684\uff0c\u9019\u4e9b\u6578\u64da\u901a\u5e38\u662f\u4ee5\u6bcf\u79d2\u7684\u983b\u7387\u9032\u884c\u6536\u96c6\u3002<\/p>\n<h3 id=\"ash%e7%9a%84%e4%b8%bb%e8%a6%81%e5%8a%9f%e8%83%bd-SJEMyUbRzL\">ASH\u7684\u4e3b\u8981\u529f\u80fd<\/h3>\n<ul>\n<li><strong>\u5373\u6642\u76e3\u63a7\uff1a<\/strong>ASH\u80fd\u5920\u63d0\u4f9b\u7576\u524d\u6d3b\u8e8d\u6703\u8a71\u7684\u8a73\u7d30\u4fe1\u606f\uff0c\u5305\u62ec\u6703\u8a71\u72c0\u614b\u3001\u7b49\u5f85\u4e8b\u4ef6\u7b49\u3002<\/li>\n<li><strong>\u554f\u984c\u6392\u67e5\uff1a<\/strong>\u901a\u904e\u5206\u6790ASH\u6578\u64da\uff0cDBA\u53ef\u4ee5\u5feb\u901f\u8b58\u5225\u6027\u80fd\u554f\u984c\u7684\u6839\u6e90\u3002<\/li>\n<li><strong>\u8da8\u52e2\u5206\u6790\uff1a<\/strong>\u96d6\u7136ASH\u4e3b\u8981\u7528\u65bc\u5373\u6642\u76e3\u63a7\uff0c\u4f46\u4e5f\u53ef\u4ee5\u7528\u65bc\u77ed\u671f\u7684\u8da8\u52e2\u5206\u6790\u3002<\/li>\n<\/ul>\n<h2 id=\"awr%e8%88%87ash%e7%9a%84%e5%8d%80%e5%88%a5-SJEMyUbRzL\">AWR\u8207ASH\u7684\u5340\u5225<\/h2>\n<p>AWR\u548cASH\u96d6\u7136\u90fd\u662f\u7528\u65bc\u6027\u80fd\u76e3\u63a7\u7684\u5de5\u5177\uff0c\u4f46\u5b83\u5011\u7684\u529f\u80fd\u548c\u4f7f\u7528\u5834\u666f\u6709\u6240\u4e0d\u540c\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u6536\u96c6\u983b\u7387\uff1a<\/strong>AWR\u6bcf\u5c0f\u6642\u6536\u96c6\u4e00\u6b21\u5feb\u7167\uff0c\u800cASH\u5247\u662f\u6bcf\u79d2\u6536\u96c6\u4e00\u6b21\u6d3b\u8e8d\u6703\u8a71\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u6578\u64da\u7bc4\u570d\uff1a<\/strong>AWR\u63d0\u4f9b\u7684\u662f\u6574\u9ad4\u6027\u80fd\u6578\u64da\uff0c\u800cASH\u5247\u5c08\u6ce8\u65bc\u7576\u524d\u6d3b\u8e8d\u6703\u8a71\u7684\u8a73\u7d30\u4fe1\u606f\u3002<\/li>\n<li><strong>\u4f7f\u7528\u5834\u666f\uff1a<\/strong>AWR\u9069\u5408\u9032\u884c\u9577\u671f\u6027\u80fd\u5206\u6790\uff0c\u800cASH\u5247\u9069\u5408\u5373\u6642\u554f\u984c\u6392\u67e5\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8awr%e5%92%8cash%ef%bc%9f-SJEMyUbRzL\">\u5982\u4f55\u4f7f\u7528AWR\u548cASH\uff1f<\/h2>\n<p>\u4f7f\u7528AWR\u548cASH\u7684\u904e\u7a0b\u76f8\u5c0d\u7c21\u55ae\u3002DBA\u53ef\u4ee5\u901a\u904eSQL\u67e5\u8a62\u4f86\u7372\u53d6\u6240\u9700\u7684\u6578\u64da\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u67e5\u8a62AWR\u5831\u544a\u7684\u57fa\u672cSQL\u8a9e\u53e5\uff1a<\/p>\n<pre><code>SELECT * FROM DBA_HIST_SNAPSHOT;<\/code><\/pre>\n<p>\u800c\u8981\u67e5\u8a62ASH\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\uff1a<\/p>\n<pre><code>SELECT * FROM V$ACTIVE_SESSION_HISTORY;<\/code><\/pre>\n<p>\u9019\u4e9b\u67e5\u8a62\u80fd\u5e6b\u52a9DBA\u5feb\u901f\u7372\u53d6\u6027\u80fd\u6578\u64da\uff0c\u9032\u800c\u9032\u884c\u5206\u6790\u548c\u512a\u5316\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-SJEMyUbRzL\">\u7e3d\u7d50<\/h2>\n<p>AWR\u548cASH\u662fOracle\u6578\u64da\u5eab\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u6027\u80fd\u76e3\u63a7\u5de5\u5177\u3002AWR\u63d0\u4f9b\u4e86\u9577\u671f\u7684\u6027\u80fd\u6578\u64da\u5b58\u5132\u548c\u5206\u6790\uff0c\u800cASH\u5247\u5c08\u6ce8\u65bc\u5373\u6642\u7684\u6d3b\u8e8d\u6703\u8a71\u76e3\u63a7\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528\u9019\u5169\u8005\uff0cDBA\u53ef\u4ee5\u6709\u6548\u5730\u8b58\u5225\u548c\u89e3\u6c7a\u6027\u80fd\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u904b\u884c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u7684\u61c9\u7528\u74b0\u5883\uff0c\u9078\u64c7\u5408\u9069\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3Oracle\u6578\u64da\u5eab\u4e2d\u7684ASH\u548cAWR\uff0c\u9019\u5169\u7a2e\u6027\u80fd\u76e3\u63a7\u5de5\u5177\u5982\u4f55\u5e6b\u52a9\u512a\u5316\u6578\u64da\u5eab\u904b\u884c\u6548\u7387\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-95466","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95466","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=95466"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95466\/revisions"}],"predecessor-version":[{"id":95467,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95466\/revisions\/95467"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95466"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95466"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}