{"id":2045,"date":"2024-10-26T11:58:14","date_gmt":"2024-10-26T03:58:14","guid":{"rendered":"http:\/\/www.821121.com\/?p=2045"},"modified":"2025-01-06T15:44:54","modified_gmt":"2025-01-06T07:44:54","slug":"ora-4036-pga-%e5%bc%82%e5%b8%b8%e6%b6%88%e8%80%97%e6%a1%88%e4%be%8b%e5%88%86%e4%ba%ab","status":"publish","type":"post","link":"http:\/\/www.821121.com\/?p=2045","title":{"rendered":"ORA-4036 PGA \u5f02\u5e38\u6d88\u8017\u6848\u4f8b\u5206\u4eab"},"content":{"rendered":"

\u95ee\u9898\u73b0\u8c61<\/h1>\n

\u5ba2\u6237oracle19c\u5355\u673a\u73af\u5883\u65f6\u5e38\u51fa\u73b0pga\u4e0d\u8db3\u544a\u8b66
\n\u6839\u636eAWR\u5206\u6790\uff0c\u8be5\u73af\u5883\u4e1a\u52a1\u8d1f\u8f7d\u8f83\u4f4e\uff0cPGA\u6d88\u8017\u957f\u671f\u7ef4\u6301\u572810%\u5de6\u53f3
\n\"file\"<\/p>\n

PGA_AGGREGATE_LIMIT\u4ecb\u7ecd<\/h3>\n

\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u662f\u901a\u8fc7\u8bbe\u7f6e\u53c2\u6570 PGA_AGGREGATE_TARGET \u6765\u786e\u5b9a\u4e00\u4e2a PGA \u7684\u4f7f\u7528\u91cf\u3002\u4f46\u662f\uff0c\u5728Oracle 12C \u4e4b\u524d\u7248\u672c\uff0cPGA_AGGREGATE_TARGET \u4e0d\u4f1a\u786c\u9650\u5236 PGA \u5185\u5b58\u4f7f\u7528\u91cf\uff0c\uff0c\u6709\u65f6\u5019\u4f1a\u8d85\u51fa\u4e0a\u9650\uff0c\u5bfc\u81f4 PGA \u5185\u5b58\u4f7f\u7528\u65e0\u6cd5\u51c6\u786e\u638c\u63a7\u3002
\n\u4ece Oracle 12C \u5f00\u59cb\uff0c\u5141\u8bb8\u6570\u636e\u5e93\u7ba1\u7406\u5458\u8bbe\u7f6e PGA\uff08Program Global Area\uff09\u5185\u5b58\u7684\u4f7f\u7528\u4e0a\u9650\uff0c\u53ef\u4ee5\u5bf9 PGA \u7684\u4f7f\u7528\u91cf\u8fdb\u884c\u786c\u6027\u9650\u5236\u3002\u5982\u679c PGA \u4f7f\u7528\u8d85\u51fa\u8bbe\u7f6e\u7684\u503c\uff0cOracle \u6570\u636e\u5e93\u4f1a\u4e2d\u6b62\u6216\u7ec8\u6b62\u5360\u7528\u6700\u591a\u3001\u4e0d\u53ef\u8c03\u6574 PGA \u5185\u5b58\u7684\u4f1a\u8bdd\u6216\u8fdb\u7a0b\u3002\u5f53\u5b9e\u4f8b\u4e2d\u7684\u79c1\u6709\u5185\u5b58\u8d85\u51fa PGA_AGGREGATE_LIMIT \u521d\u59cb\u5316\u53c2\u6570\u4e2d\u6307\u5b9a\u7684\u9650\u5236\u65f6\uff0c\u4f1a\u53d1\u751f ORA-04036 \u9519\u8bef\u3002\u4f7f\u7528Program Global Area (PGA) \u5185\u5b58\u7684\u6700\u5927\u4f1a\u8bdd\u88ab\u4e2d\u65ad\u4ee5\u4f4e\u4e8e\u9650\u5236\u3002
\n\u6b64\u9519\u8bef\u901a\u5e38\u662f\u7531\u4e8e\u4f7f\u7528\u3001\u5e94\u7528\u7a0b\u5e8f\u6216\u914d\u7f6e\u95ee\u9898\u5f15\u8d77\u7684\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5b83\u4eec\u53ef\u80fd\u662f\u7531 bug \u95ee\u9898\u5f15\u8d77\u7684\u3002<\/p>\n

\u5206\u6790<\/h1>\n

\u68c0\u67e5\u65e5\u5fd7\u53d1\u73b0\uff0cpga\u4e0d\u8db3\u53d1\u751f\u7684\u65f6\u95f4\u6bb5\u6bd4\u8f83\u56fa\u5b9a\uff0c\u90fd\u7ef4\u6301\u5728\u51cc\u66684\u30015\u70b9\u4e4b\u95f4\uff0c\u7ed3\u5408\u76d1\u63a7\u7684PGA\u4f7f\u7528\u60c5\u51b5\u53ef\u4ee5\u53d1\u73b0\uff0c\u8be5\u65f6\u95f4\u6bb5\u7684PGA\u4f1a\u51fa\u73b0\u5f02\u5e38\u5347\u9ad8\uff0c\u5728\u8fbe\u5230PGA_AGGREGATE_TARGET\u9650\u5236\u540e\uff0c\u65ad\u5d16\u5f0f\u56de\u843d\u3002
\n\u95ee\u9898\u4e8b\u4ef6\u6bb5\u4e0e\u7edf\u8ba1\u4fe1\u606f\u7684\u81ea\u52a8\u6536\u96c6\u4efb\u52a1\u9ad8\u5ea6\u91cd\u5408\uff0c\u901a\u5e38\u5728\u542f\u52a8\u7edf\u8ba1\u4fe1\u606f\u4efb\u52a1\u540e20-50\u5206\u949f\u4f1a\u5f62\u6210PGA\u5f02\u5e38\u589e\u957f\uff0c\u6000\u7591\u662fBUG\u9020\u6210\u3002
\n\"file\"<\/p>\n

\"file\"<\/p>\n

\u67e5\u8be2\u5b98\u7f51\uff0c\u53d1\u73b0\u7c7b\u4f3cBUG\uff0c\u5b98\u65b9\u6587\u6863(ID 2856094.1)
\nBUG\u539f\u56e0\uff1a\u5f53\u6570\u636e\u5e93\u5728\u6267\u884cDBMS_STATS.GATHER_FIXED_OBJECTS_STATS\u800c\u4ea7\u751f\u7684\u5927\u91cf\u5b50\u6e38\u6807\u5b58\u5728\u8868X$KQLFSQCE\u4e2d\uff0c\u5bfc\u81f4\u8868\u7684\u5927\u5c0f\u975e\u5e38\u5927\uff0c\u5e76\u4e14\u9700\u8981\u4f7f\u7528\u5927\u91cf\u7684\u79c1\u6709\u5185\u5b58\u6765\u67e5\u8be2\u8868\u3002
\nDBMS_STATS.GATHER_FIXED_OBJECTS_STATS\u7528\u4e8e\u6536\u96c6\u56fa\u5b9a\u5bf9\u8c61\uff08fixed objects\uff09\u7684\u7edf\u8ba1\u4fe1\u606f\uff0c\u8fd9\u4e9b\u56fa\u5b9a\u5bf9\u8c61\u5305\u62ec\u6570\u636e\u5b57\u5178\u57fa\u8868\u548c\u5176\u4ed6\u5185\u90e8\u8868\uff0c\u5b83\u4eec\u7684\u7edf\u8ba1\u4fe1\u606f\u5bf9\u4e8e\u4f18\u5316\u5668\u751f\u6210\u9ad8\u6548\u7684SQL\u6267\u884c\u8ba1\u5212\u81f3\u5173\u91cd\u8981\u3002
\n\u6839\u636e\u6587\u6863\u63d0\u4f9b\u7684\u8bed\u53e5\uff0c\u5bf9\u6bd4\u95ee\u9898\u6570\u636e\u5e93\u548c\u6b63\u5e38\u6570\u636e\u5e93\uff0c\u80fd\u770b\u5230\u660e\u663e\u4e0d\u540c
\n\u6b63\u5e38\u6570\u636e\u5e93
\n\"file\"
\n\u95ee\u9898\u6570\u636e\u5e93
\n\"file\"<\/p>\n

\u5904\u7406\u65b9\u6cd5<\/h1>\n

a) \u66f4\u65b0\u8865\u4e01Patch 33163187
\nb) \u4fee\u6539\u53c2\u6570
\n1) alter system set "_fix_control"='17443547:0'
\n2) \u6216\u8005
\nalter system set "_optimizer_extended_cursor_sharing"='none'
\nalter system set "_optimizer_extended_cursor_sharing_rel"='none'<\/p>\n

\u5efa\u8bae<\/h3>\n

\u540c\u65f6\u53d1\u73b0Optimizer Statistics Advisor \u529f\u80fd \u4e5f\u4f1a\u5f02\u5e38\u6d88\u8017PGA\uff0c\u5efa\u8bae\u5173\u95ed\u3002Optimizer Statistics Advisor \u4e0d\u662f\u81ea\u52a8\u7edf\u8ba1\u4fe1\u606f\u6536\u96c6\u7684 JOB\uff0c\u662fOracle\u6570\u636e\u5e93\u4e2d\u7684\u4e00\u79cd\u5185\u7f6e\u8bca\u65ad\u5de5\u5177\uff0c\u4ece12.2\u7248\u672c\u5f00\u59cb\u63d0\u4f9b\uff0c\u7528\u4e8e\u5206\u6790\u4f18\u5316\u5668\u7edf\u8ba1\u4fe1\u606f\u7684\u6536\u96c6\u65b9\u5f0f\u5e76\u63d0\u51fa\u5efa\u8bae\u3002\u5173\u95ed\u8fd9\u4e2a\u529f\u80fd\u5b8c\u5168\u4e0d\u5f71\u54cd\u81ea\u52a8\u7edf\u8ba1\u4fe1\u606f\u6536\u96c6\uff0c\u4e0d\u4f1a\u5bf9\u6570\u636e\u5e93\u9020\u6210\u4efb\u4f55\u5f71\u54cd\u3002<\/p>\n

\u5173\u95ed Optimizer Statistics Advisor \u529f\u80fd\uff0c\u5b98\u65b9\u6587\u6863 (Doc ID 2728765.1)<\/h4>\n

\u5728 Oracle 12CR2 ~ 19C \u7248\u672c\u4e2d\u60f3\u8981\u5173\u95ed\u8fd9\u4e2a\u529f\u80fd\uff0c\u9700\u8981\u6253\u4e00\u4e2a\u8865\u4e01 Bug 26749785 : PERF_DIAG: NEED TO HAVE MORE CONTROL IN DICTIONARY FOR AUTO_STATS_ADVISOR_TASK \u540e\u624d\u80fd\u5b9e\u73b0\uff0c21C \u5f00\u59cb\u9ed8\u8ba4\u652f\u6301\u3002
\n\u6253\u8865\u4e01\u4e4b\u540e\u65b0\u589e\u4e86 \u201cAUTO_STATS_ADVISOR_TASK\u201d \u7684\u5c5e\u6027\u8bbe\u7f6e\uff0c\u53ef\u4ee5\u624b\u52a8\u542f\u7528\/\u7981\u7528 AUTO_STATS_ADVISOR_TASK\u3002
\n\u68c0\u67e5\u5f53\u524d\u5c5e\u6027\uff1a<\/p>\n

SQL> select dbms_stats.get_prefs('AUTO_STATS_ADVISOR_TASK') from dual;\n\nDBMS_STATS.GET_PREFS('AUTO_STATS_ADVISOR_TASK')\n--------------------------------------------------------------------------------\nTRUE\n<\/code><\/pre>\n
\u7981\u7528\u7edf\u8ba1\u987e\u95ee\uff1a<\/p>\n
SQL> exec dbms_stats.set_global_prefs('AUTO_STATS_ADVISOR_TASK','FALSE');\nPL\/SQL procedure successfully completed.\nSQL> select dbms_stats.get_prefs('AUTO_STATS_ADVISOR_TASK') from dual;\nDBMS_STATS.GET_PREFS('AUTO_STATS_ADVISOR_TASK')\n--------------------------------------------------------------------------------\nFALSE\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u95ee\u9898\u73b0\u8c61 \u5ba2\u6237oracle19c\u5355\u673a\u73af\u5883\u65f6\u5e38\u51fa\u73b0p<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49,52],"tags":[],"class_list":["post-2045","post","type-post","status-publish","format-standard","hentry","category-oracle-19c","category--oracle-19c"],"_links":{"self":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/2045","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2045"}],"version-history":[{"count":1,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/2045\/revisions"}],"predecessor-version":[{"id":2054,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/2045\/revisions\/2054"}],"wp:attachment":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2045"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2045"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2045"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}