{"id":5217,"date":"2021-10-22T09:33:31","date_gmt":"2021-10-22T01:33:31","guid":{"rendered":"http:\/\/blog.ywdevops.cn\/?p=5217"},"modified":"2021-10-22T09:33:32","modified_gmt":"2021-10-22T01:33:32","slug":"mysql-3","status":"publish","type":"post","link":"https:\/\/blog.ywdevops.cn\/index.php\/2021\/10\/22\/mysql-3\/","title":{"rendered":"mysql\u5e38\u89c1\u9519\u8bef\u6574\u7406"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">1\u3001\u5173\u4e8eMySQL\u7684wait_timeout\u8fde\u63a5\u8d85\u65f6\u95ee\u9898\u62a5\u9519\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9519\u8bef\u65e5\u5fd7\u63d0\u793a\u5185\u5bb9\u4e3a\uff1a <code>SQL []; The last packet successfully received\u00a0from<\/code>\u00a0<code>the server was 47,795,922 milliseconds ago<\/code> <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u539f\u56e0\u5206\u6790:\nMySQL\u8fde\u63a5\u65f6\uff0c\u670d\u52a1\u5668\u9ed8\u8ba4\u7684\u201cwait_timeout\u201d\u662f8\u5c0f\u65f6\uff0c\u4e5f\u5c31\u662f\u8bf4\u4e00\u4e2aconnection\u7a7a\u95f2\u8d85\u8fc78\u4e2a\u5c0f\u65f6\uff0cMysql\u5c06\u81ea\u52a8\u65ad\u5f00\u8be5connection\u3002connections\u5982\u679c\u7a7a\u95f2\u8d85\u8fc78\u5c0f\u65f6\uff0cMysql\u5c06\u5176\u65ad\u5f00\uff0c\u800cDBCP\u8fde\u63a5\u6c60\u5e76\u4e0d\u77e5\u9053\u8be5connection\u5df2\u7ecf\u5931\u6548\uff0c\u5982\u679c\u8fd9\u65f6\u6709Client\u8bf7\u6c42connection\uff0cDBCP\u5c06\u8be5\u5931\u6548\u7684Connection\u63d0\u4f9b\u7ed9Client\uff0c\u5c06\u4f1a\u9020\u6210\u5f02\u5e38\u3002 <\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u547d\u4ee4 :show variables like \u2018%timeout%\u2019 \u67e5\u770b\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"586\" height=\"266\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2021\/10\/12-2.png\" alt=\"\" class=\"wp-image-5218\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2021\/10\/12-2.png 586w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2021\/10\/12-2-300x136.png 300w\" sizes=\"auto, (max-width: 586px) 100vw, 586px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u4e0a\u56fe\u53ef\u4ee5\uff0c \u8fd9\u4e24\u4e2a\u53c2\u6570\u7684\u9ed8\u8ba4\u503c\u662f8\u5c0f\u65f6(60*60*8=28800)\u3002\u00a0\u6ce8\u610f\uff1a wait_timeout\u7684\u6700\u5927\u503c\u53ea\u5141\u8bb82147483 \uff0824\u5929\u5de6\u53f3\uff09 <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u89e3\u51b3\u65b9\u6848\uff1a\u7f16\u8f91my.cnf\uff0c\u5c06\u65f6\u95f4\u8c03\u6574\u4e3a24\u5c0f\u65f6\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"625\" height=\"133\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2021\/10\/13-2.png\" alt=\"\" class=\"wp-image-5219\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2021\/10\/13-2.png 625w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2021\/10\/13-2-300x64.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2021\/10\/13-2-600x128.png 600w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>1\u3001\u5173\u4e8eMySQL\u7684wait_timeout\u8fde\u63a5\u8d85\u65f6\u95ee\u9898\u62a5\u9519\u89e3\u51b3\u65b9\u6848\uff1a \u9519\u8bef\u65e5\u5fd7\u63d0\u793a\u5185\u5bb9\u4e3a\uff1a SQL []; &#8230;<\/p>\n","protected":false},"author":3,"featured_media":5221,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-5217","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts\/5217","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/comments?post=5217"}],"version-history":[{"count":1,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts\/5217\/revisions"}],"predecessor-version":[{"id":5220,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts\/5217\/revisions\/5220"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/media\/5221"}],"wp:attachment":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/media?parent=5217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/categories?post=5217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/tags?post=5217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}