{"id":6076,"date":"2021-05-24T08:34:46","date_gmt":"2021-05-24T00:34:46","guid":{"rendered":"https:\/\/www.gbase8.cn\/?p=6076"},"modified":"2021-05-24T08:34:47","modified_gmt":"2021-05-24T00:34:47","slug":"gbase-8a%e9%9b%86%e7%be%a4%e8%b0%83%e5%ba%a6%e6%9c%8d%e5%8a%a1gclusterd%e5%8d%a0%e7%94%a8%e5%a4%a7%e9%87%8fcpu%e5%92%8c%e7%a3%81%e7%9b%98%e8%b5%84%e6%ba%90%e7%9a%84%e5%87%a0%e7%a7%8d%e6%83%85%e5%86%b5","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/6076","title":{"rendered":"\u5357\u5927\u901a\u7528GBase 8a\u96c6\u7fa4\u8c03\u5ea6\u670d\u52a1gclusterd\u5360\u7528\u5927\u91cfCPU\u548c\u78c1\u76d8\u8d44\u6e90\u7684\u51e0\u79cd\u60c5\u51b5"},"content":{"rendered":"<p>GBase 8a\u96c6\u7fa4\u7684\u8c03\u5ea6\u670d\u52a1gclusterd\u8d1f\u8d23\u5bf9\u5916\u8fde\u63a5\uff0c\u89e3\u6790SQL\u548c\u8c03\u5ea6\u4e0b\u53d1\u4efb\u52a1\uff0c\u5e76\u8fd4\u56de\u7ed3\u679c\u96c6\u3002\u4ece\u804c\u80fd\u8bbe\u8ba1\u4e0a\u4e0d\u4f1a\u6d88\u8017\u5927\u91cf\u7684CPU\u548c\u78c1\u76d8\u8d44\u6e90\u3002\u672c\u6587\u4ecb\u7ecd\u51e0\u79cd\u53ef\u80fd\u53d1\u751f\u7684\u7279\u6b8a\u60c5\u51b5\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-6a2ab3db76a0c\" 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-6a2ab3db76a0c\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.gbase8.cn\/en\/6076\/#%E5%A4%A7%E9%87%8F%E5%B9%B6%E5%8F%91SQL\" >\u5927\u91cf\u5e76\u53d1SQL<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.gbase8.cn\/en\/6076\/#%E6%89%AB%E6%8F%8F%E4%BA%86%E9%9B%86%E7%BE%A4%E5%B1%82%E7%9A%84%E6%9C%AC%E5%9C%B0%E8%A1%A8%EF%BC%8C%E7%89%B9%E5%88%AB%E6%98%AFTABLESViews\" >\u626b\u63cf\u4e86\u96c6\u7fa4\u5c42\u7684\u672c\u5730\u8868\uff0c\u7279\u522b\u662fTABLES,Views<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.gbase8.cn\/en\/6076\/#%E8%AE%BF%E9%97%AE%E4%BA%86%E5%8A%A0%E8%BD%BD%E5%8E%86%E5%8F%B2%E7%BB%93%E6%9E%9C%E8%A1%A8\" >\u8bbf\u95ee\u4e86\u52a0\u8f7d\u5386\u53f2\u7ed3\u679c\u8868<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.gbase8.cn\/en\/6076\/#%E8%B0%83%E7%94%A8%E4%BA%86%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%AB%AF%E6%B8%B8%E6%A0%87\" >\u8c03\u7528\u4e86\u670d\u52a1\u5668\u7aef\u6e38\u6807<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%A4%A7%E9%87%8F%E5%B9%B6%E5%8F%91SQL\"><\/span>\u5927\u91cf\u5e76\u53d1SQL<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u8fd9\u4e2a\u6700\u597d\u7406\u89e3\uff0cSQL\u591a\uff0c\u5c31\u7b97\u6bcf\u4e2a\u5360\u7528\u8d44\u6e90\u5c11\uff0c\u4f46\u591a\u4e86\u4e5f\u4e00\u6837\u627f\u62c5\u4e0d\u8d77\u3002\u4e0d\u8fc7\u4e00\u822c\u90fd\u4f1a\u6709\u591a\u4e2a\u8c03\u5ea6\u8282\u70b9\uff0c\u505a\u4e00\u4e0b\u8d1f\u8f7d\u5747\u8861\u5c31\u597d\u4e86\u3002\u5f53\u7136\u5982\u679c\u5e76\u53d1\u592a\u591a\uff0c\u8fd8\u662f\u8981\u8003\u8651\u4e0b\u5408\u7406\u6027\uff0c\u63a7\u5236\u4e0b\u524d\u7aef\u7684\u8fde\u63a5\u6c60\u6570\u91cf\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%89%AB%E6%8F%8F%E4%BA%86%E9%9B%86%E7%BE%A4%E5%B1%82%E7%9A%84%E6%9C%AC%E5%9C%B0%E8%A1%A8%EF%BC%8C%E7%89%B9%E5%88%AB%E6%98%AFTABLESViews\"><\/span>\u626b\u63cf\u4e86\u96c6\u7fa4\u5c42\u7684\u672c\u5730\u8868\uff0c\u7279\u522b\u662fTABLES,Views<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>information_schema.tables\u8868\u662f\u4e00\u4e2a\u5185\u5b58\u8868\uff0c\u6bcf\u6b21\u4f7f\u7528\u65f6\uff0c\u5982\u679c\u6ca1\u6709\u660e\u786e\u7684\u8868\u540d\u5b57\u6761\u4ef6\uff0c\u5c31\u4f1a\u51fa\u73b0\u5168\u5e93\u626b\u63cf\u3002\u6bd4\u5982<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>select * from information_schema.tables<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u8868\u5f88\u591a\uff0c\u51e0\u5341\u4e07\u4ee5\u4e0a\uff0c\u5219\u9700\u8981\u4ece\u78c1\u76d8\u4e0a\u8bfb\u53d6\u6bcf\u4e2a\u8868\u7684\u7ed3\u6784\u6587\u4ef6\u8fdb\u884c\u89e3\u6790\uff0c\u82b1\u8d39\u5927\u91cf\u7684\u78c1\u76d8IOPS\u3002<\/p>\n\n\n\n<p>\u89e3\u51b3\u65b9\u6848\u5c31\u662f\u5bf9\u4e8eexperss\u8868\uff0c\u53ef\u4ee5\u8bbf\u95eegbase.table_distribution\u8868\u3002 \u5177\u4f53\u5efa\u8bae\u53ef\u4ee5\u53c2\u8003\uff1a <a href=\"https:\/\/www.gbase8.cn\/en\/79\/\">GBase8a \u96c6\u7fa4\u67e5\u770b\u6216\u5224\u65ad\u5e93\u91cc\u6709\u54ea\u4e9b\u8868\uff0c\u6216\u67d0\u5f20\u8868\u662f\u5426\u5b58\u5728<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%AE%BF%E9%97%AE%E4%BA%86%E5%8A%A0%E8%BD%BD%E5%8E%86%E5%8F%B2%E7%BB%93%E6%9E%9C%E8%A1%A8\"><\/span>\u8bbf\u95ee\u4e86\u52a0\u8f7d\u5386\u53f2\u7ed3\u679c\u8868<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>information_schema.load_result\u548c information_schema.cluster_load_result\u3002\u8be5\u8868\u8bb0\u5f55\u4e86\u52a0\u8f7d\u7684\u5386\u53f2\u7ed3\u679c\uff0c\u4e3a\u5185\u5b58\u8868\u3002\u5b9e\u9645\u5b58\u50a8\u4e3a\u5916\u90e8\u6587\u4ef6\u3002\u5982\u679c\u6587\u4ef6\u8f83\u5927(\u52a0\u8f7d\u6b21\u6570\u591a\uff0c\u4fdd\u7559\u5468\u671f\u957f\uff09\uff0c\u5219\u4f1a\u5360\u7528\u5927\u91cf\u7684IO\u8d44\u6e90\u6765\u8bfb\u53d6\u3002<\/p>\n\n\n\n<p>\u89e3\u51b3\u5efa\u8bae\u662f\u5b9a\u65f6\u5f52\u6863\u8be5\u6587\u4ef6\uff0c\u6bd4\u5982\u53ea\u4fdd\u7559\u6700\u8fd11\u5929\u7684\u3002<\/p>\n\n\n\n<p>Reference:<a href=\"https:\/\/www.gbase8.cn\/en\/589\/\">GBase 8a\u96c6\u7fa4\u901a\u8fc7SQL\u67e5\u8be2\u52a0\u8f7d\u5386\u53f2\u8bb0\u5f55\u65e5\u5fd7<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%B0%83%E7%94%A8%E4%BA%86%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%AB%AF%E6%B8%B8%E6%A0%87\"><\/span>\u8c03\u7528\u4e86\u670d\u52a1\u5668\u7aef\u6e38\u6807<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u8be5\u529f\u80fd\u662f\u5728\u670d\u52a1\u5668\u7aef\u751f\u6210\u4e00\u4e2a\u4e34\u65f6\u8868\uff0c\u6765\u652f\u6301\u6e38\u6807\u7684\u5411\u524d\u548c\u5411\u540e\u64cd\u4f5c\u3002\u5982\u679c\u7ed3\u679c\u96c6\u5f88\u5927\uff0c\u5219\u4f1a\u51fa\u73b0\u9700\u8981\u5728\u8c03\u5ea6\u8282\u70b9\u5199\u5165\u5927\u91cf\u6570\u636e\u7684\u60c5\u51b5\u3002 \u5efa\u8bae\u91c7\u7528\u6d41\u6a21\u5f0f\u8bfb\u53d6\uff0c\u4e0d\u8981\u4f7f\u7528\u670d\u52a1\u5668\u7aef\u6e38\u6807\u3002<\/p>\n\n\n\n<p>\u8bf7\u53c2\u8003JDBC\u7684\u4e00\u4e2a\u5e38\u89c1\u6848\u4f8b\u3002<a href=\"https:\/\/www.gbase8.cn\/en\/1884\/\">GBase 8a\u91c7\u7528\u6d41\u6a21\u5f0f\u5904\u7406JDBC\u5927\u7ed3\u679c\u96c6\uff0c\u907f\u514d\u5185\u5b58\u4e0d\u8db3 OutOfmemoryError: GC overhead limit exceeded<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u5357\u5927\u901a\u7528GBase 8a\u96c6\u7fa4\u7684\u8c03\u5ea6\u670d\u52a1gclusterd\u8d1f\u8d23\u5bf9\u5916\u8fde\u63a5\uff0c\u89e3\u6790SQL\u548c\u8c03\u5ea6\u4e0b\u53d1\u4efb\u52a1\uff0c\u5e76\u8fd4\u56de\u7ed3\u679c\u96c6\u3002\u4ece\u804c\u80fd\u8bbe\u8ba1\u4e0a\u4e0d\u4f1a\u6d88\u8017\u5927\u91cf\u7684CPU\u548c\u78c1\u76d8\u8d44\u6e90\u3002\u672c\u6587\u4ecb\u7ecd\u51e0\u79cd\u53ef\u80fd\u53d1\u751f\u7684\u7279\u6b8a\u60c5\u51b5\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-6076","post","type-post","status-publish","format-standard","hentry","category-gbase8a"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/6076","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=6076"}],"version-history":[{"count":3,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/6076\/revisions"}],"predecessor-version":[{"id":6079,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/6076\/revisions\/6079"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=6076"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=6076"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=6076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}