{"id":95992,"date":"2024-10-20T05:42:17","date_gmt":"2024-10-19T21:42:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95992\/"},"modified":"2024-10-20T05:42:18","modified_gmt":"2024-10-19T21:42:18","slug":"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%a6%82%e4%bd%95%e6%9f%a5%e6%89%besession%e4%b8%ad%e7%9a%84%e6%ad%bb%e9%8e%96","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95992\/","title":{"rendered":"Oracle\u6578\u64da\u5eab\u4e2d\u5982\u4f55\u67e5\u627esession\u4e2d\u7684\u6b7b\u9396"},"content":{"rendered":"<h1 id=\"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%a6%82%e4%bd%95%e6%9f%a5%e6%89%besession%e4%b8%ad%e7%9a%84%e6%ad%bb%e9%8e%96-rmbCVgptov\">Oracle\u6578\u64da\u5eab\u4e2d\u5982\u4f55\u67e5\u627esession\u4e2d\u7684\u6b7b\u9396<\/h1>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u6b7b\u9396\u662f\u4e00\u7a2e\u5e38\u898b\u7684\u554f\u984c\uff0c\u7576\u5169\u500b\u6216\u591a\u500b\u6703\u8a71\u4e92\u76f8\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u8cc7\u6e90\u6642\uff0c\u5c31\u6703\u767c\u751f\u6b7b\u9396\u3002\u9019\u4e0d\u50c5\u6703\u5f71\u97ff\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u9084\u53ef\u80fd\u5c0e\u81f4\u61c9\u7528\u7a0b\u5e8f\u7684\u6545\u969c\u3002\u56e0\u6b64\uff0c\u53ca\u6642\u6aa2\u6e2c\u548c\u89e3\u6c7a\u6b7b\u9396\u554f\u984c\u662f\u6578\u64da\u5eab\u7ba1\u7406\u7684\u91cd\u8981\u4efb\u52d9\u4e4b\u4e00\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728Oracle\u6578\u64da\u5eab\u4e2d\u67e5\u627esession\u4e2d\u7684\u6b7b\u9396\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%ad%bb%e9%8e%96%ef%bc%9f-rmbCVgptov\">\u4ec0\u9ebc\u662f\u6b7b\u9396\uff1f<\/h2>\n<p>\u6b7b\u9396\u662f\u6307\u5169\u500b\u6216\u591a\u500b\u6703\u8a71\u5728\u7b49\u5f85\u5f7c\u6b64\u91cb\u653e\u8cc7\u6e90\uff0c\u5c0e\u81f4\u6240\u6709\u6703\u8a71\u90fd\u7121\u6cd5\u7e7c\u7e8c\u57f7\u884c\u7684\u60c5\u6cc1\u3002\u8209\u4f8b\u4f86\u8aaa\uff0c\u5047\u8a2d\u6703\u8a71A\u6301\u6709\u8cc7\u6e901\u4e26\u7b49\u5f85\u8cc7\u6e902\uff0c\u800c\u6703\u8a71B\u6301\u6709\u8cc7\u6e902\u4e26\u7b49\u5f85\u8cc7\u6e901\uff0c\u9019\u6a23\u5c31\u5f62\u6210\u4e86\u6b7b\u9396\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%aa%a2%e6%b8%ac%e6%ad%bb%e9%8e%96-rmbCVgptov\">\u5982\u4f55\u6aa2\u6e2c\u6b7b\u9396<\/h2>\n<p>Oracle\u6578\u64da\u5eab\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u6aa2\u6e2c\u6b7b\u9396\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8vsession%e8%a6%96%e5%9c%96-rmbCVgptov\">1. \u4f7f\u7528V$SESSION\u8996\u5716<\/h3>\n<p>V$SESSION\u8996\u5716\u5305\u542b\u4e86\u7576\u524d\u6240\u6709\u6703\u8a71\u7684\u4fe1\u606f\uff0c\u5305\u62ec\u5b83\u5011\u7684\u72c0\u614b\u3002\u53ef\u4ee5\u901a\u904e\u67e5\u8a62\u6b64\u8996\u5716\u4f86\u6aa2\u6e2c\u662f\u5426\u5b58\u5728\u6b7b\u9396\u3002<\/p>\n<pre><code>SELECT \n    s1.sid AS session_id,\n    s1.serial# AS serial_number,\n    s1.username,\n    s1.status,\n    s1.machine,\n    s1.program\nFROM \n    v$session s1\nWHERE \n    s1.status = 'ACTIVE' \n    AND s1.wait_class = 'Application';\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8vlock%e8%a6%96%e5%9c%96-rmbCVgptov\">2. \u4f7f\u7528V$LOCK\u8996\u5716<\/h3>\n<p>V$LOCK\u8996\u5716\u63d0\u4f9b\u4e86\u7576\u524d\u6240\u6709\u9396\u7684\u4fe1\u606f\u3002\u901a\u904e\u67e5\u8a62\u6b64\u8996\u5716\uff0c\u53ef\u4ee5\u627e\u51fa\u54ea\u4e9b\u6703\u8a71\u6b63\u5728\u7b49\u5f85\u9396\uff0c\u5f9e\u800c\u8b58\u5225\u6b7b\u9396\u3002<\/p>\n<pre><code>SELECT \n    l1.sid AS session_id,\n    l1.type,\n    l1.id1,\n    l1.id2,\n    l1.lmode,\n    l1.request,\n    l1.ctime\nFROM \n    v$lock l1\nWHERE \n    l1.request &gt; 0;\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e6%ad%bb%e9%8e%96%e8%b7%9f%e8%b9%a4-rmbCVgptov\">3. \u4f7f\u7528\u6b7b\u9396\u8ddf\u8e64<\/h3>\n<p>Oracle\u9084\u63d0\u4f9b\u4e86\u6b7b\u9396\u8ddf\u8e64\u529f\u80fd\uff0c\u53ef\u4ee5\u5728\u6b7b\u9396\u767c\u751f\u6642\u81ea\u52d5\u751f\u6210\u8ddf\u8e64\u6587\u4ef6\u3002\u9019\u4e9b\u6587\u4ef6\u5305\u542b\u4e86\u8a73\u7d30\u7684\u6b7b\u9396\u4fe1\u606f\uff0c\u5305\u62ec\u53c3\u8207\u6b7b\u9396\u7684\u6703\u8a71\u548c\u9396\u5b9a\u7684\u8cc7\u6e90\u3002<\/p>\n<pre><code>ALTER SYSTEM SET background_dump_dest='\/path\/to\/dump';\nALTER SESSION SET events 'immediate trace name deadlock level 1';\n<\/code><\/pre>\n<h2 id=\"%e5%88%86%e6%9e%90%e6%ad%bb%e9%8e%96%e8%b7%9f%e8%b9%a4%e6%96%87%e4%bb%b6-rmbCVgptov\">\u5206\u6790\u6b7b\u9396\u8ddf\u8e64\u6587\u4ef6<\/h2>\n<p>\u7576\u6b7b\u9396\u767c\u751f\u6642\uff0cOracle\u6703\u751f\u6210\u4e00\u500b\u8ddf\u8e64\u6587\u4ef6\uff0c\u8a72\u6587\u4ef6\u901a\u5e38\u4f4d\u65bc\u6307\u5b9a\u7684\u80cc\u666f\u8f49\u5132\u76ee\u9304\u4e2d\u3002\u8ddf\u8e64\u6587\u4ef6\u4e2d\u5305\u542b\u4e86\u6b7b\u9396\u7684\u8a73\u7d30\u4fe1\u606f\uff0c\u5305\u62ec\u53c3\u8207\u7684\u6703\u8a71\u3001\u9396\u5b9a\u7684\u8cc7\u6e90\u4ee5\u53ca\u7b49\u5f85\u7684\u60c5\u6cc1\u3002\u4ee5\u4e0b\u662f\u5206\u6790\u8ddf\u8e64\u6587\u4ef6\u7684\u4e00\u4e9b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u67e5\u627e\u201cDeadlock found\u201d\u5b57\u6a23\uff0c\u9019\u8868\u793a\u6b7b\u9396\u5df2\u7d93\u767c\u751f\u3002<\/li>\n<li>\u67e5\u770b\u53c3\u8207\u6b7b\u9396\u7684\u6703\u8a71ID\u548c\u9396\u5b9a\u7684\u8cc7\u6e90\u3002<\/li>\n<li>\u5206\u6790\u6703\u8a71\u7684\u7b49\u5f85\u60c5\u6cc1\uff0c\u627e\u51fa\u5c0e\u81f4\u6b7b\u9396\u7684\u539f\u56e0\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%ad%bb%e9%8e%96%e5%95%8f%e9%a1%8c-rmbCVgptov\">\u89e3\u6c7a\u6b7b\u9396\u554f\u984c<\/h2>\n<p>\u4e00\u65e6\u6aa2\u6e2c\u5230\u6b7b\u9396\uff0c\u7ba1\u7406\u54e1\u9700\u8981\u63a1\u53d6\u63aa\u65bd\u4f86\u89e3\u6c7a\u554f\u984c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<ul>\n<li>\u512a\u5316SQL\u67e5\u8a62\uff0c\u6e1b\u5c11\u9396\u5b9a\u7684\u8cc7\u6e90\u3002<\/li>\n<li>\u8abf\u6574\u61c9\u7528\u7a0b\u5e8f\u7684\u908f\u8f2f\uff0c\u907f\u514d\u540c\u6642\u8acb\u6c42\u76f8\u540c\u7684\u8cc7\u6e90\u3002<\/li>\n<li>\u5b9a\u671f\u6aa2\u67e5\u548c\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u9396\u5b9a\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-rmbCVgptov\">\u7e3d\u7d50<\/h2>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u6b7b\u9396\u662f\u4e00\u500b\u9700\u8981\u53ca\u6642\u8655\u7406\u7684\u554f\u984c\u3002\u901a\u904e\u4f7f\u7528V$SESSION\u548cV$LOCK\u8996\u5716\uff0c\u4ee5\u53ca\u6b7b\u9396\u8ddf\u8e64\u529f\u80fd\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u4ee5\u6709\u6548\u5730\u6aa2\u6e2c\u548c\u5206\u6790\u6b7b\u9396\u60c5\u6cc1\u3002\u89e3\u6c7a\u6b7b\u9396\u554f\u984c\u7684\u95dc\u9375\u5728\u65bc\u512a\u5316\u8cc7\u6e90\u7684\u4f7f\u7528\u548c\u8abf\u6574\u61c9\u7528\u7a0b\u5e8f\u908f\u8f2f\uff0c\u4ee5\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u548c<code><a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a><\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8a73\u7d30\u8cc7\u6599\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728Oracle\u6578\u64da\u5eab\u4e2d\u67e5\u627esession\u4e2d\u7684\u6b7b\u9396\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u512a\u5316\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-95992","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95992","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=95992"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95992\/revisions"}],"predecessor-version":[{"id":95993,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95992\/revisions\/95993"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95992"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95992"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95992"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}