{"id":105,"date":"2020-06-09T10:33:35","date_gmt":"2020-06-09T02:33:35","guid":{"rendered":"http:\/\/www.gbase8.cn\/?p=105"},"modified":"2020-09-08T11:14:43","modified_gmt":"2020-09-08T03:14:43","slug":"gbase8a-%e9%9b%86%e7%be%a4%e6%9f%a5%e7%9c%8b%e6%95%b0%e6%8d%ae%e5%ba%93%e5%8f%82%e6%95%b0%e7%9a%84%e5%bd%93%e5%89%8d%e5%80%bc","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/105","title":{"rendered":"View the current values of database parameters in the Nanda General GBase8a cluster"},"content":{"rendered":"<p>GBase 8a\u6570\u636e\u5e93\u96c6\u7fa4\u6709\u5f88\u591a\u7684\u53c2\u6570\uff0c\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u6587\u4ef6\uff0cset\u547d\u4ee4\u7b49\u8fdb\u884c\u8bbe\u7f6e\u3002\u8fd8\u53ef\u4ee5\u901a\u8fc7show\u547d\u4ee4\u6216\u8005\u5143\u6570\u636e\u8868 GLOBAL_VARIABLES\uff0cSESSION_VARIABLES\u67e5\u770b\u5f53\u524d\u7684\u53c2\u6570\u503c\u3002<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Directory Navigation<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a2b353c2370c\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a2b353c2370c\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.gbase8.cn\/en\/105\/#1%E3%80%81%E9%80%9A%E8%BF%87%E4%BA%A4%E4%BA%92%E5%91%BD%E4%BB%A4%E6%9F%A5%E7%9C%8B%E5%BD%93%E5%89%8D%E8%BF%9E%E6%8E%A5%E7%9A%84session%E7%BA%A7%E5%8F%82%E6%95%B0%E5%80%BC\" >1\u3001\u901a\u8fc7\u4ea4\u4e92\u547d\u4ee4\u67e5\u770b\u5f53\u524d\u8fde\u63a5\u7684session\u7ea7\u53c2\u6570\u503c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.gbase8.cn\/en\/105\/#2%E3%80%81%E4%BB%8E%E5%85%83%E6%95%B0%E6%8D%AE%E8%A1%A8%E6%9F%A5%E8%AF%A2\" >2\u3001\u4ece\u5143\u6570\u636e\u8868\u67e5\u8be2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.gbase8.cn\/en\/105\/#3%E3%80%81%E9%80%9A%E8%BF%87%E5%BF%AB%E6%8D%B7%E8%AE%BF%E9%97%AE%E6%8C%87%E5%AE%9A%E5%8F%98%E9%87%8F%E7%9A%84session%E7%BA%A7%E5%8F%82%E6%95%B0%E5%80%BC\" >3\u3001\u901a\u8fc7@@\u5feb\u6377\u8bbf\u95ee\u6307\u5b9a\u53d8\u91cf\u7684session\u7ea7\u53c2\u6570\u503c<\/a><\/li><\/ul><\/nav><\/div>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1%E3%80%81%E9%80%9A%E8%BF%87%E4%BA%A4%E4%BA%92%E5%91%BD%E4%BB%A4%E6%9F%A5%E7%9C%8B%E5%BD%93%E5%89%8D%E8%BF%9E%E6%8E%A5%E7%9A%84session%E7%BA%A7%E5%8F%82%E6%95%B0%E5%80%BC\"><\/span>1\u3001\u901a\u8fc7\u4ea4\u4e92\u547d\u4ee4\u67e5\u770b\u5f53\u524d\u8fde\u63a5\u7684session\u7ea7\u53c2\u6570\u503c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>show variables like '%heap%'<\/p>\n\n\n\n<p>like\u90e8\u5206\u5c31\u662f\u6807\u51c6\u7684\u6a21\u7cca\u67e5\u8be2\u8bed\u6cd5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"531\" height=\"271\" src=\"http:\/\/www.gbase8.cn\/wp-content\/uploads\/2020\/06\/image-40.png\" alt=\"\" class=\"wp-image-106\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2%E3%80%81%E4%BB%8E%E5%85%83%E6%95%B0%E6%8D%AE%E8%A1%A8%E6%9F%A5%E8%AF%A2\"><\/span>2\u3001\u4ece\u5143\u6570\u636e\u8868\u67e5\u8be2<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u5305\u62ec\u4ece\u5168\u5c40\u8868global_variables\u548c\u5f53\u524d\u8fde\u63a5\u8868session_variables\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase> select variable_name,variable_value from information_schema.global_variables where variable_name like '%heap%';\n+---------------------------+----------------+\n| variable_name             | variable_value |\n+---------------------------+----------------+\n| MAX_HEAP_TABLE_SIZE       | 16777216       |\n| GBASE_HEAP_TEMP           | 268435456      |\n| GBASE_HEAP_DATA           | 536870912      |\n| _GBASE_ENABLE_SYSTEM_HEAP | OFF            |\n| GBASE_HEAP_LARGE          | 268435456      |\n+---------------------------+----------------+\n5 rows in set (Elapsed: 00:00:00.00)\n\ngbase> select variable_name,variable_value from information_schema.session_variables where variable_name like '%heap%';\n+---------------------------+----------------+\n| variable_name             | variable_value |\n+---------------------------+----------------+\n| MAX_HEAP_TABLE_SIZE       | 16777216       |\n| GBASE_HEAP_TEMP           | 268435456      |\n| GBASE_HEAP_DATA           | 536870912      |\n| _GBASE_ENABLE_SYSTEM_HEAP | OFF            |\n| GBASE_HEAP_LARGE          | 268435456      |\n+---------------------------+---------\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3%E3%80%81%E9%80%9A%E8%BF%87%E5%BF%AB%E6%8D%B7%E8%AE%BF%E9%97%AE%E6%8C%87%E5%AE%9A%E5%8F%98%E9%87%8F%E7%9A%84session%E7%BA%A7%E5%8F%82%E6%95%B0%E5%80%BC\"><\/span>3\u3001\u901a\u8fc7@@\u5feb\u6377\u8bbf\u95ee\u6307\u5b9a\u53d8\u91cf\u7684session\u7ea7\u53c2\u6570\u503c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase> select @@GBASE_HEAP_DATA;\n+-------------------+\n| @@GBASE_HEAP_DATA |\n+-------------------+\n|         536870912 |\n+-------------------+\n1 row in set (Elapsed: 00:00:00.00)\n<\/code><\/pre>\n\n\n\n<p>\u5982\u4e0a\u53ea\u80fd\u8bbf\u95ee\u5f53\u524dsession\u7ea7\u522b\u7684\u53c2\u6570\u503c\uff0c\u5982\u67e5\u8be2\u5168\u5c40\u7684\uff0c\u9700\u8981\u8bbf\u95ee\u5143\u6570\u636e\u8868\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>\u5176\u5b83\u5143\u6570\u636e\u4fe1\u606f\uff0c\u8bf7\u53c2\u8003<\/p>\n\n\n\n<p><a href=\"http:\/\/www.gbase8.cn\/en\/?tag=%e5%85%83%e6%95%b0%e6%8d%ae\">http:\/\/www.gbase8.cn\/?tag=%e5%85%83%e6%95%b0%e6%8d%ae<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u5357\u5927\u901a\u7528GBase 8a\u6570\u636e\u5e93\u96c6\u7fa4\u6709\u5f88\u591a\u7684\u53c2\u6570\uff0c\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u6587\u4ef6\uff0cset\u547d\u4ee4\u7b49\u8fdb\u884c\u8bbe\u7f6e\u3002\u8fd8\u53ef\u4ee5\u901a\u8fc7show\u547d\u4ee4\u6216\u8005\u5143\u6570\u636e\u8868 GLOBAL_VARIABLES\uff0cSESSION_VARIABLES\u67e5\u770b\u5f53\u524d\u7684\u53c2\u6570\u503c\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[28],"class_list":["post-105","post","type-post","status-publish","format-standard","hentry","category-gbase8a","tag-28"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/105","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=105"}],"version-history":[{"count":3,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/105\/revisions"}],"predecessor-version":[{"id":1065,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/105\/revisions\/1065"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=105"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=105"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}