{"id":7403,"date":"2023-11-28T18:58:09","date_gmt":"2023-11-28T10:58:09","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=7403"},"modified":"2023-11-28T18:58:17","modified_gmt":"2023-11-28T10:58:17","slug":"mysql-zhong-man-cha-xun-ri-zhi-ru-he-cha-kan","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/mysql-zhong-man-cha-xun-ri-zhi-ru-he-cha-kan\/","title":{"rendered":"MySQL\u4e2d\u6162\u67e5\u8be2\u65e5\u5fd7\u5982\u4f55\u67e5\u770b\uff1f"},"content":{"rendered":"<p>\u7528\u4e8e\u8bb0\u5f55\u6267\u884c\u65f6\u95f4\u8d85\u8fc7\u67d0\u4e2a\u4e34\u754c\u503c\u7684SQL\u65e5\u5fd7\uff0c\u7528\u4e8e\u5feb\u901f\u5b9a\u4f4d\u6162\u901f\u67e5\u8be2\uff0c\u4e3a\u6211\u4eec\u7684\u4f18\u5316\u505a\u53c2\u8003<br \/>\n1\u3001  \u5f00\u542f\u6162\u67e5\u8be2\u65e5\u5fd7<br \/>\n2\u3001  \u914d\u7f6e\u9879\uff1aslow_query_log<br \/>\n3\u3001  \u53ef\u4ee5\u4f7f\u7528show variables like \u2018slov_query_log\u2019\u67e5\u770b\u662f\u5426\u5f00\u542f\uff0c\u5982\u679c\u72b6\u6001\u503c\u4e3aOFF,\u53ef\u4ee5\u4f7f\u7528 set GLOBAL slow_query_log = on \u6765\u5f00\u542f\uff0c\u5b83\u4f1a\u5728 datadir \u4e0b\u4ea7\u751f\u4e00\u4e2a xxx-slow.log \u7684\u6587\u4ef6\u3002<br \/>\n4\u3001  \u8bbe\u7f6e\u4e34\u754c\u65f6\u95f4<br \/>\n5\u3001  \u914d\u7f6e\u9879\uff1along_query_time<br \/>\n6\u3001  \u67e5\u770b\uff1ashow VARIABLES like &#8216; long_query_time&#8217;,\u5355\u4f4d\u79d2<br \/>\n7\u3001  \u8bbe\u7f6e\uff1aset long_query_time=0.5<br \/>\n8\u3001  \u5b9e\u64cd\u65f6\u5e94\u8be5\u4ece\u957f\u65f6\u95f4\u8bbe\u7f6e\u5230\u77ed\u7684\u65f6\u95f4\uff0c\u5373\u5c06\u6700\u6162\u7684SQL\u4f18\u5316\u6389<br \/>\n9\u3001  \u67e5\u770b\u65e5\u5fd7\uff0c\u4e00\u65e6SQL\u8d85\u8fc7\u4e86\u6211\u4eec\u8bbe\u7f6e\u7684\u4e34\u754c\u65f6\u95f4\u5c31\u4f1a\u88ab\u8bb0\u5f55\u5230xxx-slow.log\u4e2d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7528\u4e8e\u8bb0\u5f55\u6267\u884c\u65f6\u95f4\u8d85\u8fc7\u67d0\u4e2a\u4e34\u754c\u503c\u7684SQL\u65e5\u5fd7\uff0c\u7528\u4e8e\u5feb\u901f\u5b9a\u4f4d\u6162\u901f\u67e5\u8be2\uff0c\u4e3a\u6211\u4eec\u7684\u4f18\u5316\u505a\u53c2\u8003 1\u3001 \u5f00\u542f\u6162\u67e5\u8be2\u65e5\u5fd7 2 [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[102],"tags":[],"class_list":["post-7403","post","type-post","status-publish","format-standard","hentry","category-db"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/7403","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=7403"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/7403\/revisions"}],"predecessor-version":[{"id":7404,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/7403\/revisions\/7404"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=7403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=7403"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=7403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}