{"id":5164,"date":"2022-03-17T12:07:26","date_gmt":"2022-03-17T04:07:26","guid":{"rendered":"https:\/\/www.webteach.tw\/?p=5164"},"modified":"2022-12-09T11:34:44","modified_gmt":"2022-12-09T03:34:44","slug":"too-many-connections","status":"publish","type":"post","link":"https:\/\/www.webteach.tw\/?p=5164","title":{"rendered":"[ Mysql ] &#8211; SQLSTATE[HY000][1040] Too many connections \u9023\u7dda\u6578\u904e\u591a"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u8cc7\u6599\u5eab\u7684\u9023\u7dda\u5206\u6210\u9577\u9023\u7dda(\u4e00\u76f4\u4fdd\u6301\u9023\u7dda\u72c0\u614b)\u8ddf\u77ed\u9023\u7dda(\u7528\u5b8c\u5c31\u95dc\u9589\u9023\u7dda)\u9019\u5169\u7a2e\uff0c\u901a\u5e38\u9577\u9023\u7dda\u4e0d\u592a\u6703\u9020\u6210 Too many connections \u9023\u7dda\u6578\u904e\u591a \u7684\u554f\u984c\uff0c\u53cd\u800c\u662f\u77ed\u9023\u7dda\u5e38\u5e38\u56e0\u70ba\u7a0b\u5f0f\u932f\u8aa4\u800c\u6c92\u6709\u6b63\u5e38\u7684\u95dc\u9589\u8cc7\u6599\u5eab\u9023\u7dda\u800c\u9020\u6210\u8cc7\u6599\u5eab\u7684\u9023\u7dda\u4e00\u76f4\u589e\u52a0\uff0c\u76f4\u5230\u4e0a\u7dda\u5c31\u6703\u5c0e\u81f4\u8cc7\u6599\u5eab\u6574\u500b\u639b\u6389\u7121\u6cd5\u9023\u7dda\uff0c\u8cc7\u6599\u5eab\u672c\u8eab\u5c31\u6709\u9810\u8a2d\u7684\u8cc7\u6599\u5eab\u95dc\u9589\u7684\u8a2d\u5b9a\u7576\u67d0\u9023\u7dda\u592a\u4e45\u6c92\u4f7f\u7528\u6642\u6703\u81ea\u52d5\u95dc\u9589\uff0c\u9019\u9019\u500b\u8a2d\u5b9a\u7684\u9810\u8a2d\u503c\u904e\u9577 8 \u5c0f\u6642\u6c92\u6709\u4f7f\u7528\u624d\u95dc\u9589\uff0c\u6240\u4ee5\u6211\u5011\u53ef\u4ee5\u4fee\u6539\u9019\u500b\u8a2d\u5b9a\u6e1b\u5c11 \u9023\u7dda\u6578\u904e\u591a\u7684\u554f\u984c\u7522\u751f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u67e5\u8a62\u76ee\u524d\u9023\u7dda\u6578\u8a9e\u6cd5\uff1a<br>show full processlist;&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5927\u9023\u7dda\u6578\u67e5\u8a62\u8a9e\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>show variables like '%max_connections%';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u986f\u793a\u7d50\u679c\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">max_connections 151<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a2d\u5b9a\u6700\u5927\u9023\u7dda\u6578\u8a9e\u6cd5\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">set GLOBAL max_connections = 200;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u518d\u6b21\u67e5\u8a62\u6700\u5927\u9023\u7dda\u6578\u986f\u793a\u7d50\u679c<br>max_connections 200<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b64\u65b9\u5f0f\u53ea\u8981Mysql \u6709\u91cd\u65b0\u555f\u52d5\u5f8c\u5c31\u6703\u8b8a\u56de\u9810\u8a2d\u503c max_connections 151<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><br>\u4e00\u52de\u6c38\u9038\u7684\u65b9\u6cd5\u662f\u76f4\u63a5\u5728mysql \u8a2d\u5b9a\u6a94\u52a0\u8a2d\u5b9a max_connections \u9019\u500b\u53c3\u6578&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a9e\u6cd5\uff1a<br>nano \/etc\/mysql\/mysql.conf.d\/mysqld.cnf<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6587\u4ef6\u5167\u6587\u67e5\u8a62 max_connections \u53c3\u6578\u8a9e\u6cd5\uff1a<br>Ctrl + w \u8f38\u5165 max_connections<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6703\u770b\u5230\u9810\u8a2d\u7684\u53c3\u6578\u662f\u88ab\u8a3b\u89e3\u6389<br>#max_connections&nbsp; &nbsp; &nbsp; &nbsp; = 100<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fee\u6539\u5f8c<br>max_connections&nbsp; &nbsp; &nbsp; &nbsp; = 200<br><br>\u5b58\u6a94<br>Ctrl + o&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">enter<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u96e2\u958b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ctrl + x<br><br>\u76f8\u95dc\u8a9e\u6cd5\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u67e5\u8a62\u7cfb\u7d71\u6b77\u53f2\u6700\u5927\u7684\u4f7f\u7528\u8005\u9023\u7dda\u6578<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>show global status like 'Max_used_connections';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><br>\u4ee5\u4e0a\u7684\u503c\u5982\u679c\u9060\u4f4e\u65bc max_connections \u5c31\u53ef\u4ee5\u4e0d\u7528\u4fee\u6539 max_connections \u56e0\u70ba\u4e0d\u662f\u9019\u500b\u53c3\u6578\u9020\u6210\u7cfb\u7d71\u4e0d\u7a69\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9023\u7dda\u904e\u671f\u6642\u9593<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>show variables like 'wait_timeout';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u9019\u500b\u503c\u8a2d\u592a\u9ad8\u6703\u9020\u6210\u9023\u7dda\u6578\u5927\u4f0f\u589e\u52a0 \u9810\u8a2d\u503c\u662f 28800 = 480m = 8hr<br>\u53ef\u53c3\u8003\u9019\u7bc7\u6587\u7ae0 <a href=\"https:\/\/www.webteach.tw\/?p=2375\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.webteach.tw\/?p=2375<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2022-12-09 \u88dc\u5145 \u7576\u4e3b\u6a5f\u7684\u786c\u789f\u7a7a\u9593\u4f7f\u7528\u7387\u8d85\u904e95%\u4ee5\u4e0a\u4e00\u6a23\u6703\u51fa\u73fe\u9023\u7dda\u6578\u904e\u591a\u7684\u932f\u8aa4\u8a0a\u606f\uff0c\u6b64\u6642\u8acb\u60f3\u8fa6\u6cd5\u6e05\u51fa\u7a7a\u9593\u5373\u53ef\u6b63\u5e38\u9023\u7dda\u8cc7\u6599\u5eab\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8cc7\u6599\u5eab\u7684\u9023\u7dda\u5206\u6210\u9577\u9023\u7dda(\u4e00\u76f4\u4fdd\u6301\u9023\u7dda\u72c0\u614b)\u8ddf\u77ed\u9023\u7dda(\u7528\u5b8c\u5c31\u95dc\u9589\u9023\u7dda)\u9019\u5169\u7a2e\uff0c\u901a\u5e38\u9577\u9023\u7dda\u4e0d\u592a\u6703\u9020\u6210 Too many connections \u9023\u7dda\u6578\u904e\u591a \u7684\u554f\u984c\uff0c\u53cd\u800c\u662f\u77ed\u9023\u7dda\u5e38\u5e38\u56e0\u70ba\u7a0b\u5f0f\u932f\u8aa4\u800c\u6c92\u6709\u6b63\u5e38\u7684\u95dc\u9589\u8cc7\u6599\u5eab\u9023\u7dda\u800c\u9020\u6210\u8cc7\u6599\u5eab\u7684\u9023\u7dda\u4e00\u76f4\u589e\u52a0\uff0c\u76f4\u5230\u4e0a\u7dda\u5c31\u6703\u5c0e\u81f4\u8cc7\u6599\u5eab\u6574\u500b\u639b\u6389\u7121\u6cd5\u9023\u7dda\uff0c\u8cc7\u6599\u5eab\u672c\u8eab\u5c31\u6709\u9810\u8a2d\u7684\u8cc7\u6599\u5eab\u95dc\u9589\u7684\u8a2d\u5b9a\u7576\u67d0\u9023\u7dda\u592a\u4e45\u6c92\u4f7f\u7528\u6642\u6703\u81ea\u52d5\u95dc\u9589\uff0c\u9019\u9019\u500b\u8a2d\u5b9a\u7684\u9810\u8a2d\u503c\u904e\u9577 8 \u5c0f\u6642\u6c92\u6709\u4f7f\u7528\u624d\u95dc\u9589\uff0c\u6240\u4ee5\u6211\u5011\u53ef\u4ee5\u4fee\u6539\u9019\u500b\u8a2d\u5b9a\u6e1b\u5c11 \u9023\u7dda\u6578\u904e\u591a\u7684\u554f\u984c\u7522\u751f\u3002<\/p>\n","protected":false},"author":1,"featured_media":1867,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[1300],"class_list":["post-5164","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mysql","tag-too-many-connections","hvn-theme-has-thumbnail"],"_links":{"self":[{"href":"https:\/\/www.webteach.tw\/index.php?rest_route=\/wp\/v2\/posts\/5164","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.webteach.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.webteach.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.webteach.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.webteach.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5164"}],"version-history":[{"count":5,"href":"https:\/\/www.webteach.tw\/index.php?rest_route=\/wp\/v2\/posts\/5164\/revisions"}],"predecessor-version":[{"id":5452,"href":"https:\/\/www.webteach.tw\/index.php?rest_route=\/wp\/v2\/posts\/5164\/revisions\/5452"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.webteach.tw\/index.php?rest_route=\/wp\/v2\/media\/1867"}],"wp:attachment":[{"href":"https:\/\/www.webteach.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5164"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.webteach.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5164"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.webteach.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}