{"id":33813,"date":"2026-10-26T14:00:00","date_gmt":"2026-10-26T06:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=33813"},"modified":"2026-10-20T10:35:45","modified_gmt":"2026-10-20T02:35:45","slug":"mysql-database-too-many-connections","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/tutorials\/mysql-database-too-many-connections\/","title":{"rendered":"MySQL \u6570\u636e\u5e93\u8fde\u63a5\u6570\u8d85\u9650\uff1a\u7f51\u7ad9\u62a5\u9519 Too many connections \u7684\u5b9a\u4f4d\u4e0e\u7f13\u89e3"},"content":{"rendered":"<p>\u7f51\u7ad9\u7a81\u7136\u96c6\u4f53\u62a5\u9519&#8221;Too many connections&#8221;\uff0c\u9875\u9762\u6253\u4e0d\u5f00\u3001\u540e\u53f0\u767b\u4e0d\u8fdb\uff0c\u800c\u670d\u52a1\u5668 CPU \u548c\u5185\u5b58\u770b\u8d77\u6765\u90fd\u5f88\u7a7a\u95f2\u2014\u2014\u8fd9\u662f MySQL \u6570\u636e\u5e93\u8fde\u63a5\u6570\u8d85\u9650\u7684\u5178\u578b\u73b0\u573a\u3002\u8fd9\u7bc7\u6587\u7ae0\u89e3\u51b3\u7684\u5c31\u662f\u8fd9\u4e2a\u9ad8\u9891\u6545\u969c\uff1a\u6559\u4f60\u5982\u4f55\u4e00\u6b65\u6b65\u5b9a\u4f4d\u8fde\u63a5\u6570\u88ab\u8c01\u5360\u7528\u4e86\uff0c\u54ea\u4e9b\u7f13\u89e3\u64cd\u4f5c\u662f\u5b89\u5168\u7684\u3001\u54ea\u4e9b\u4f1a\u5f15\u706b\u70e7\u8eab\uff0c\u4ee5\u53ca\u5982\u4f55\u4ece\u6839\u6e90\u4e0a\u907f\u514d\u5b83\u518d\u6b21\u53d1\u751f\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/mysql-too-many-connections-cover.webp\" alt=\"MySQL \u8fde\u63a5\u6570\u8d85\u9650\u6545\u969c\u6392\u67e5\u5c01\u9762\u63d2\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u62a5\u9519\u7684\u672c\u8d28\uff1a\u8fde\u63a5\u662f\u6709\u9650\u8d44\u6e90<\/h2>\n<p>MySQL \u7684\u6bcf\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\u5bf9\u5e94\u670d\u52a1\u7aef\u4e00\u4e2a\u7ebf\u7a0b\uff0c\u8fde\u63a5\u6570\u8fbe\u5230 <code>max_connections<\/code>\uff08\u6700\u5927\u8fde\u63a5\u6570\u4e0a\u9650\uff09\u540e\uff0c\u65b0\u8fde\u63a5\u4e00\u5f8b\u88ab\u62d2\u7edd\uff0c\u62a5\u9519\u6b63\u662f Too many connections\u3002\u5b83\u4e0d\u662f&#8221;\u6570\u636e\u5e93\u574f\u4e86&#8221;\uff0c\u800c\u662f&#8221;\u95e8\u53e3\u6392\u961f\u7684\u4f4d\u7f6e\u6ee1\u4e86&#8221;\u2014\u2014\u540e\u9762\u7684\u8bf7\u6c42\u8fde\u95e8\u90fd\u8fdb\u4e0d\u6765\u3002<\/p>\n<p>\u9ed8\u8ba4\u7684 <code>max_connections<\/code> \u901a\u5e38\u53ea\u6709 151\uff0c\u8fd9\u4e2a\u6570\u5b57\u5bf9\u751f\u4ea7\u73af\u5883\u660e\u663e\u504f\u5c0f\uff0c\u4f46\u4e5f\u4e0d\u80fd\u65e0\u8111\u8c03\u5927\uff1a\u6bcf\u4e2a\u8fde\u63a5\u8981\u6d88\u8017\u7ea6 256KB \u5230\u6570 MB \u5185\u5b58\uff0c\u4e00\u4e2a\u8fde\u63a5\u6c60\u914d\u7f6e\u9519\u8bef\u7684\u5e94\u7528\u53ef\u4ee5\u5728\u51e0\u79d2\u5185\u5403\u6389\u6570 GB \u5185\u5b58\u3002\u6240\u4ee5\u6b63\u786e\u7684\u601d\u8def\u6c38\u8fdc\u662f&#8221;\u5148\u5b9a\u4f4d\u8c01\u5360\u7528\u4e86\u8fde\u63a5\uff0c\u518d\u51b3\u5b9a\u662f\u91ca\u653e\u3001\u9650\u6d41\u8fd8\u662f\u6269\u5bb9&#8221;\u3002<\/p>\n<h2>\u7b2c\u4e00\u6b65\uff1a\u5b9a\u4f4d\u8fde\u63a5\u88ab\u8c01\u5360\u7528<\/h2>\n<p>\u62a5\u9519\u53d1\u751f\u540e\uff0c\u6570\u636e\u5e93\u672c\u5730\u901a\u5e38\u8fd8\u4fdd\u7559\u4e00\u4e2a\u7ba1\u7406\u5165\u53e3\uff08<code>max_connections<\/code> \u8fbe\u5230\u4e0a\u9650\u540e\uff0c\u989d\u5916\u9884\u7559 1 \u4e2a\u5e26 SUPER \u6743\u9650\u7684\u8fde\u63a5\u4f4d\uff0c\u4f9b\u7ba1\u7406\u5458\u767b\u5165\u5904\u7406\uff09\u3002\u7528\u7ba1\u7406\u5458\u8d26\u53f7\u767b\u5165 MySQL \u6267\u884c\u4ee5\u4e0b\u67e5\u8be2\uff0c\u8fd9\u662f\u5b9a\u4f4d\u95ee\u9898\u7684\u6838\u5fc3\u4e09\u6b65\uff1a<\/p>\n<pre><code class=\"language-sql\">-- \u67e5\u770b\u5f53\u524d\u603b\u8fde\u63a5\u6570\u4e0e\u4e0a\u9650\nSHOW STATUS LIKE 'Threads_connected';\nSHOW VARIABLES LIKE 'max_connections';\n\n-- \u67e5\u770b\u6bcf\u4e2a\u8fde\u63a5\u7684\u6765\u6e90\u3001\u72b6\u6001\u548c\u6301\u7eed\u65f6\u95f4\nSELECT id, user, host, db, command, time, state\nFROM information_schema.processlist\nORDER BY time DESC;\n<\/code><\/pre>\n<p>\u62ff\u5230 processlist \u7ed3\u679c\u540e\uff0c\u91cd\u70b9\u770b\u4e09\u7c7b\u5f02\u5e38\u6a21\u5f0f\uff1a<\/p>\n<ul>\n<li><strong>\u5927\u91cf Sleep \u4e14 time \u5f88\u957f<\/strong>\uff08\u5982\u6570\u767e\u4e2a Sleep \u8d85\u8fc7 300 \u79d2\u7684\u8fde\u63a5\uff09\uff1a\u5178\u578b\u7684\u5e94\u7528\u4fa7\u8fde\u63a5\u6c60\u6cc4\u6f0f\u2014\u2014\u8fde\u63a5\u501f\u51fa\u4e0d\u5f52\u8fd8\uff0c\u5e38\u89c1\u4e8e\u4ee3\u7801\u91cc\u6ca1\u6709\u6b63\u786e\u5173\u95ed\u8fde\u63a5\uff0c\u6216\u8fde\u63a5\u6c60\u7684\u7a7a\u95f2\u56de\u6536\u65f6\u95f4\u8bbe\u7f6e\u8fc7\u957f\u3002<\/li>\n<li><strong>\u540c\u4e00 host \u6570\u767e\u4e2a\u8fde\u63a5<\/strong>\uff1a\u5e94\u7528\u90e8\u7f72\u4e86\u591a\u4e2a\u5b9e\u4f8b\u4f46\u5171\u4eab\u540c\u4e00\u4e2a\u8fde\u63a5\u6c60\u914d\u7f6e\uff0c\u6bcf\u4e2a\u5b9e\u4f8b\u5404\u5f00\u51e0\u5341\u4e2a\u8fde\u63a5\uff0c\u4e58\u8d77\u6765\u76f4\u63a5\u6253\u6ee1\u4e0a\u9650\u3002<\/li>\n<li><strong>\u5927\u91cf Query \u72b6\u6001\u7684\u6162\u67e5\u8be2\u5806\u79ef<\/strong>\uff1a\u771f\u6b63\u7684\u5143\u51f6\u662f\u6162\u67e5\u8be2\uff0c\u8fde\u63a5\u5806\u79ef\u53ea\u662f\u75c7\u72b6\uff0c\u6b64\u65f6\u6740\u8fde\u63a5\u6ca1\u6709\u610f\u4e49\uff0c\u65b0\u7684\u8fde\u63a5\u4f1a\u7acb\u523b\u7ee7\u7eed\u5806\u79ef\u3002<\/li>\n<\/ul>\n<p>\u5b9a\u4f4d\u7ed3\u679c\u51b3\u5b9a\u4e86\u5904\u7406\u8def\u5f84\uff1a\u6cc4\u6f0f\u578b\u8981\u6539\u5e94\u7528\u914d\u7f6e\uff0c\u5806\u79ef\u578b\u8981\u6cbb\u7406\u6162\u67e5\u8be2\uff0c\u6269\u5bb9\u578b\u624d\u6d89\u53ca\u8c03\u53c2\u6570\u3002<\/p>\n<h2>\u7b2c\u4e8c\u6b65\uff1a\u5b89\u5168\u7684\u4e34\u65f6\u7f13\u89e3\u64cd\u4f5c<\/h2>\n<p>\u73b0\u573a\u8fd8\u5f00\u7740\u95e8\uff0c\u5c31\u8981\u5148\u758f\u5835\u3002\u4ee5\u4e0b\u64cd\u4f5c\u7684\u4f18\u5148\u7ea7\u4ece\u9ad8\u5230\u4f4e\uff1a<\/p>\n<ol>\n<li><strong>\u6740\u6389\u5f02\u5e38\u7a7a\u95f2\u8fde\u63a5<\/strong>\uff1a\u5bf9\u786e\u8ba4\u662f\u6cc4\u6f0f\u7684 Sleep \u8fde\u63a5\uff0c\u7528 <code>KILL \u7ebf\u7a0bID;<\/code> \u9010\u4e2a\u7ec8\u6b62\uff0c\u6216\u6279\u91cf\u751f\u6210 KILL \u8bed\u53e5\u540e\u7edf\u4e00\u6267\u884c\u3002\u53ea\u6740 time \u8d85\u8fc7\u4e1a\u52a1\u5408\u7406\u503c\u7684\u7a7a\u95f2\u8fde\u63a5\uff0c\u4e0d\u8981\u51ed <code>SHOW PROCESSLIST<\/code> \u4e00\u773c\u626b\u8fc7\u53bb\u5168\u6740\u3002<\/li>\n<li><strong>\u7528 wait_timeout \u81ea\u52a8\u56de\u6536<\/strong>\uff1a\u8bbe\u7f6e <code>SET GLOBAL wait_timeout = 300;<\/code>\uff0c\u8ba9\u8d85\u8fc7 300 \u79d2\u7684\u7a7a\u95f2\u8fde\u63a5\u88ab\u670d\u52a1\u7aef\u81ea\u52a8\u65ad\u5f00\uff0c\u7f13\u89e3\u6cc4\u6f0f\u578b\u5360\u4f4d\u3002<\/li>\n<li><strong>\u8c28\u614e\u63d0\u9ad8 max_connections<\/strong>\uff1a\u53ea\u6709\u786e\u8ba4\u5185\u5b58\u5145\u8db3\uff08\u7528 <code>SHOW VARIABLES LIKE 'max_connections'<\/code> \u5bf9\u6bd4\u5f53\u524d\u503c\u540e\uff0c\u6309\u6bcf\u8fde\u63a5 256KB-1MB \u4f30\u7b97\u589e\u91cf\u5185\u5b58\uff09\u624d\u53ef\u4ee5\u4e34\u65f6\u4e0a\u8c03\uff0c\u4f8b\u5982 <code>SET GLOBAL max_connections = 500;<\/code>\u3002\u8fd9\u662f\u6b62\u75db\u836f\u4e0d\u662f\u6cbb\u75c5\u836f\uff0c\u4e0a\u6da8\u540e\u5fc5\u987b\u7ee7\u7eed\u67e5\u6839\u56e0\u3002<\/li>\n<\/ol>\n<p>\u4e00\u4e2a\u7edd\u5bf9\u8981\u907f\u514d\u7684\u64cd\u4f5c\uff1a\u4e0d\u8981\u7528 <code>flush hosts<\/code> \u6216\u91cd\u542f\u6570\u636e\u5e93\u6765&#8221;\u6e05\u7a7a\u8fde\u63a5&#8221;\u3002\u524d\u8005\u53ea\u6e05\u8bbf\u95ee\u767d\u540d\u5355\u8bb0\u5f55\uff0c\u5bf9\u5df2\u5efa\u7acb\u8fde\u63a5\u65e0\u6548\uff1b\u91cd\u542f\u4f1a\u8ba9\u6240\u6709\u6b63\u5e38\u4e1a\u52a1\u8ddf\u7740\u4e2d\u65ad\uff0c\u628a\u4e00\u4e2a\u5c0f\u6545\u969c\u653e\u5927\u6210\u505c\u673a\u4e8b\u6545\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/mysql-too-many-connections-diagnosis.webp\" alt=\"\u8fde\u63a5\u5360\u7528\u5b9a\u4f4d\u4e0e\u7f13\u89e3\u64cd\u4f5c\u987a\u5e8f\u793a\u610f\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u7b2c\u4e09\u6b65\uff1a\u4ece\u6839\u6e90\u89e3\u51b3\u7684\u4e09\u4e2a\u914d\u7f6e<\/h2>\n<p>\u4e34\u65f6\u7f13\u89e3\u4e4b\u540e\uff0c\u6839\u6e90\u6cbb\u7406\u901a\u5e38\u843d\u5728\u5e94\u7528\u4e0e\u6570\u636e\u5e93\u4e24\u4fa7\u7684\u4e09\u4e2a\u914d\u7f6e\u4e0a\uff1a<\/p>\n<ul>\n<li><strong>\u5e94\u7528\u4fa7\u542f\u7528\u8fde\u63a5\u6c60\u5e76\u9650\u5236\u603b\u91cf<\/strong>\uff1a\u7edd\u5927\u591a\u6570 Too many connections \u7684\u6839\u56e0\u5728\u5e94\u7528\u4fa7\u3002\u7ed9\u5e94\u7528\u914d\u7f6e\u8fde\u63a5\u6c60\uff08\u5982 Java \u7684 HikariCP\u3001PHP \u7684\u6301\u4e45\u8fde\u63a5\u4e2d\u95f4\u4ef6\uff09\uff0c\u628a\u5355\u5b9e\u4f8b\u6700\u5927\u8fde\u63a5\u6570\u63a7\u5236\u5728 20-50\uff0c\u591a\u5b9e\u4f8b\u90e8\u7f72\u65f6\u7528&#8221;\u5b9e\u4f8b\u6570 \u00d7 \u5355\u5b9e\u4f8b\u4e0a\u9650&#8221;\u5012\u63a8\u603b\u91cf\uff0c\u786e\u4fdd\u603b\u548c\u4f4e\u4e8e <code>max_connections<\/code> \u7684 80%\u3002<\/li>\n<li><strong>\u6570\u636e\u5e93\u4fa7\u6309\u5185\u5b58\u5408\u7406\u8bbe\u7f6e max_connections<\/strong>\uff1a\u4e00\u6761\u5e38\u7528\u7684\u4f30\u7b97\u516c\u5f0f\u662f <code>max_connections \u2248 \u53ef\u7528\u5185\u5b58 \/ \u5355\u8fde\u63a5\u5e73\u5747\u5185\u5b58\u5360\u7528<\/code>\u3002\u4e00\u53f0 8GB \u5185\u5b58\u3001\u4e13\u7528\u4e8e MySQL \u7684\u670d\u52a1\u5668\uff0c\u8bbe 300-500 \u6bd4\u8f83\u7a33\u59a5\uff1b\u518d\u914d\u5408 <code>innodb_buffer_pool_size<\/code> \u4f18\u5316\uff0c\u8ba9\u5185\u5b58\u4f18\u5148\u670d\u52a1\u6570\u636e\u7f13\u5b58\u800c\u4e0d\u662f\u8fde\u63a5\u5f00\u9500\u3002<\/li>\n<li><strong>\u6cbb\u7406\u6162\u67e5\u8be2\u7f29\u77ed\u8fde\u63a5\u6301\u6709\u65f6\u95f4<\/strong>\uff1a\u8fde\u63a5\u7684\u5360\u7528\u65f6\u957f\u4e0e\u67e5\u8be2\u65f6\u957f\u76f4\u63a5\u76f8\u5173\u3002\u5f00\u542f\u6162\u67e5\u8be2\u65e5\u5fd7\uff08<code>slow_query_log = ON<\/code>\uff0c<code>long_query_time = 1<\/code>\uff09\uff0c\u628a\u8d85\u8fc7 1 \u79d2\u7684\u67e5\u8be2\u9010\u6761\u4f18\u5316\uff0c\u8865\u7d22\u5f15\u3001\u6539\u5199\u4f4e\u6548 SQL\u3002\u67e5\u8be2\u5feb\u4e86\uff0c\u8fde\u63a5\u5468\u8f6c\u5c31\u5feb\uff0c\u540c\u6837\u7684\u4e0a\u9650\u80fd\u670d\u52a1\u591a\u5f97\u591a\u7684\u8bf7\u6c42\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e09\u9879\u91cc\uff0c\u8fde\u63a5\u6c60\u914d\u7f6e\u7684\u6536\u76ca\u6700\u76f4\u63a5\u3002\u5f88\u591a\u7ad9\u70b9\u628a <code>max_connections<\/code> \u4ece 151 \u8c03\u5230 1000 \u540e\u95ee\u9898\u4f9d\u65e7\uff0c\u5c31\u662f\u56e0\u4e3a\u5e94\u7528\u6839\u672c\u6ca1\u7528\u8fde\u63a5\u6c60\u2014\u2014\u4e0a\u9650\u518d\u9ad8\u4e5f\u67b6\u4e0d\u4f4f\u65e0\u8282\u5236\u7684\u521b\u5efa\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/mysql-too-many-connections-pool.webp\" alt=\"\u8fde\u63a5\u6c60\u7ba1\u63a7\u8fde\u63a5\u6570\u91cf\u793a\u610f\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u603b\u7ed3\u4e0e\u884c\u52a8\u5efa\u8bae<\/h2>\n<p>\u603b\u7ed3\u4e00\u4e0b\uff1aToo many connections \u662f\u8fde\u63a5\u8d44\u6e90\u8017\u5c3d\u7684\u4fe1\u53f7\uff0c\u5904\u7406\u987a\u5e8f\u662f&#8221;\u5148\u5b9a\u4f4d\uff08processlist \u5206\u6790\u4e09\u7c7b\u6a21\u5f0f\uff09\u2192 \u518d\u7f13\u89e3\uff08\u6740\u7a7a\u95f2\u8fde\u63a5\u3001\u8c03 wait_timeout\u3001\u8c28\u614e\u6269\u4e0a\u9650\uff09\u2192 \u540e\u6839\u6cbb\uff08\u8fde\u63a5\u6c60\u3001\u5185\u5b58\u5339\u914d\u3001\u6162\u67e5\u8be2\u6cbb\u7406\uff09&#8221;\u3002\u8df3\u8fc7\u5b9a\u4f4d\u76f4\u63a5\u8c03\u53c2\u6570\uff0c\u662f\u8fd9\u4e2a\u95ee\u9898\u6700\u5e38\u89c1\u7684\u4e8c\u6b21\u8e29\u5751\u70b9\u3002<\/p>\n<p>\u5efa\u8bae\u4f60\u4eca\u5929\u5c31\u505a\u4e00\u4ef6\u4e8b\uff1a\u767b\u5165\u81ea\u5df1\u7684 MySQL \u8dd1\u4e00\u904d <code>Threads_connected<\/code> \u5bf9\u6bd4 <code>max_connections<\/code>\uff0c\u770b\u770b\u65e5\u5e38\u6c34\u4f4d\u662f\u4e0d\u662f\u5df2\u7ecf\u8d85\u8fc7 80%\u2014\u2014\u5982\u679c\u662f\uff0c\u8fde\u63a5\u6570\u62a5\u8b66\u5c31\u8be5\u914d\u4e0a\uff08\u9608\u503c\u5efa\u8bae\u8bbe\u5728 80%\uff09\uff0c\u4e0d\u8981\u7b49\u62a5\u9519\u6253\u8fdb\u6765\u624d\u53d1\u73b0\u3002\u5982\u679c\u4f60\u6b63\u5728\u9009\u72ec\u7acb\u73af\u5883\u90e8\u7f72\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u8003\u8651\u4ece Hostease \u7684 <a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS<\/a>\uff08<a href=\"https:\/\/cn.hostease.com\/vps\/\">\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668<\/a>\uff09<a href=\"https:\/\/cn.hostease.com\/vps\/\">\u4e3b\u673a\u65b9\u6848<\/a>\u5165\u624b\uff0c\u8d44\u6e90\u72ec\u4eab\u5bf9\u8fde\u63a5\u6570\u4e0e\u5185\u5b58\u7684\u5339\u914d\u63a7\u5236\u66f4\u53ef\u9760\uff1b\u7eaf\u5efa\u7ad9\u573a\u666f\u4e5f\u53ef\u4ee5\u5148\u4e86\u89e3<a href=\"https:\/\/cn.hostease.com\/web-hosting\/\">\u865a\u62df\u4e3b\u673a\u65b9\u6848<\/a>\u7684\u9002\u7528\u8fb9\u754c\uff0c\u518d\u51b3\u5b9a\u6570\u636e\u5e93\u662f\u5426\u9700\u8981\u72ec\u7acb\u90e8\u7f72\u3002\u66f4\u591a\u6570\u636e\u5e93\u4e0e\u670d\u52a1\u5668\u8fd0\u7ef4\u5b9e\u6218\u53ef\u4ee5\u7ee7\u7eed\u770b<a href=\"https:\/\/cn.hostease.com\/blog\/server\/\">\u670d\u52a1\u5668\u4e13\u680f<\/a>\u548c <a href=\"https:\/\/cn.hostease.com\/blog\/wordpress\/\">WordPress \u6559\u7a0b\u5206\u7c7b<\/a>\uff0c\u628a\u6570\u636e\u5e93\u6cbb\u7406\u7eb3\u5165\u65e5\u5e38\u8fd0\u7ef4\u6e05\u5355\u3002\u53e6\u5916\uff0c\u90e8\u7f72\u516c\u7f51\u53ef\u8bbf\u95ee\u7684\u6570\u636e\u5e93\u7ba1\u7406\u5165\u53e3\u65f6\uff0c\u522b\u5fd8\u4e86\u914d\u597d SSL\uff08\u5b89\u5168\u4f20\u8f93\u534f\u8bae\uff09\u52a0\u5bc6\uff0c\u907f\u514d\u8fde\u63a5\u51ed\u8bc1\u660e\u6587\u4f20\u8f93\u3002\u6700\u540e\u5efa\u8bae\u628a\u672c\u6587\u7684\u4e09\u6b65\u5904\u7406\u987a\u5e8f\u5199\u8fdb\u56e2\u961f\u6545\u969c\u624b\u518c\uff0c\u4e0b\u6b21\u62a5\u9519\u51fa\u73b0\u65f6\u6309\u6d41\u7a0b\u6267\u884c\uff0c\u4e0d\u518d\u4e34\u65f6\u6551\u706b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7f51\u7ad9\u62a5\u9519 Too many connections \u600e\u4e48\u529e\uff1f\u672c\u6587\u6559\u4f60\u5982\u4f55\u5b9a\u4f4d MySQL \u8fde\u63a5\u6570\u8d85\u9650\u7684\u771f\u5b9e\u539f\u56e0\uff0c\u7528\u5b89\u5168\u7684\u65b9\u6cd5\u4e34\u65f6\u7f13\u89e3\u5e76\u4ece\u6839\u6e90\u89e3\u51b3\uff0c\u9644\u5b8c\u6574\u6392\u67e5\u6e05\u5355\u3002<\/p>\n","protected":false},"author":2,"featured_media":33810,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4099],"tags":[4904,545,5337,5338,4509],"class_list":["post-33813","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorials","tag-maxconnections","tag-mysql","tag-toomanyconnections","tag-5338","tag-4509"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/mysql-too-many-connections-cover.webp","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33813","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/comments?post=33813"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33813\/revisions"}],"predecessor-version":[{"id":33828,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33813\/revisions\/33828"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media\/33810"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media?parent=33813"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/categories?post=33813"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/tags?post=33813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}