{"id":18946,"date":"2024-05-31T11:51:57","date_gmt":"2024-05-31T03:51:57","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-cn\/how-to-automatically-restart-nginx-when-it-goes-down\/"},"modified":"2025-03-27T12:12:21","modified_gmt":"2025-03-27T04:12:21","slug":"how-to-automatically-restart-nginx-when-it-goes-down","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-cn\/knowledge\/how-to-automatically-restart-nginx-when-it-goes-down\/","title":{"rendered":"\u5982\u4f55\u4f7fNginx\u5b95\u673a\u65f6\u81ea\u52a8\u91cd\u542f?"},"content":{"rendered":"<p>\u5728<a href=\"https:\/\/www.varidata.com\/zh-cn\/server\/us\/cn2\/\" target=\"_blank\">\u7f8e\u56fd\u670d\u52a1\u5668\u79df\u7528<\/a>\u73af\u5883\u4e2d\u4fdd\u6301Nginx\u670d\u52a1\u5668\u7684\u9ad8\u53ef\u7528\u6027\u81f3\u5173\u91cd\u8981\u3002\u5f53Nginx\u670d\u52a1\u5668\u610f\u5916\u5d29\u6e83\u65f6,\u6bcf\u4e00\u79d2\u7684\u505c\u673a\u65f6\u95f4\u90fd\u53ef\u80fd\u5f71\u54cd\u7528\u6237\u4f53\u9a8c\u548c\u4e1a\u52a1\u8fd0\u8425\u3002\u672c\u6307\u5357\u63a2\u8ba8\u4e86\u5728Nginx\u505c\u6b62\u65f6\u81ea\u52a8\u91cd\u542f\u7684\u7ecf\u8fc7\u5b9e\u6218\u68c0\u9a8c\u7684\u65b9\u6cd5,\u786e\u4fdd\u60a8\u7684Web\u5e94\u7528\u7a0b\u5e8f\u83b7\u5f97\u6700\u4f73\u7684\u8fd0\u884c\u65f6\u95f4\u3002<\/p>\n<h2><strong>\u4e86\u89e3Nginx\u5d29\u6e83\u7684\u539f\u56e0<\/strong><\/h2>\n<p>\u5728\u6df1\u5165\u89e3\u51b3\u65b9\u6848\u4e4b\u524d,\u8ba9\u6211\u4eec\u5148\u770b\u770b\u751f\u4ea7\u73af\u5883\u4e2dNginx\u6545\u969c\u7684\u5e38\u89c1\u539f\u56e0\uff1a<\/p>\n<ul>\n<li>\u6d41\u91cf\u6fc0\u589e\u5bfc\u81f4\u5185\u5b58\u8017\u5c3d<\/li>\n<li>\u66f4\u65b0\u540e\u7684\u914d\u7f6e\u8bed\u6cd5\u9519\u8bef<\/li>\n<li>\u7cfb\u7edf\u8d44\u6e90\u9650\u5236<\/li>\n<li>\u5185\u6838\u7ea7\u95ee\u9898<\/li>\n<li>\u8fdb\u7a0b\u610f\u5916\u7ec8\u6b62<\/li>\n<\/ul>\n<h2><strong>\u81ea\u52a8\u91cd\u542f\u7684\u524d\u63d0\u6761\u4ef6<\/strong><\/h2>\n<p>\u786e\u4fdd\u60a8\u7684\u7cfb\u7edf\u6ee1\u8db3\u4ee5\u4e0b\u8981\u6c42\uff1a<\/p>\n<ul>\n<li>\u670d\u52a1\u5668\u7684root\u6216sudo\u8bbf\u95ee\u6743\u9650<\/li>\n<li>\u5df2\u5b89\u88c5\u5e76\u914d\u7f6eNginx<\/li>\n<li>\u57fa\u672c\u7684\u547d\u4ee4\u884c\u77e5\u8bc6<\/li>\n<li>\u6587\u672c\u7f16\u8f91\u5668(vim\u3001nano\u6216\u7c7b\u4f3c\u5de5\u5177)<\/li>\n<\/ul>\n<h2><strong>\u65b9\u6cd5\u4e00\uff1a\u521b\u5efaBash\u76d1\u63a7\u811a\u672c<\/strong><\/h2>\n<p>\u8ba9\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u76d1\u63a7Nginx\u72b6\u6001\u5e76\u89e6\u53d1\u81ea\u52a8\u91cd\u542f\u7684\u5f3a\u5927shell\u811a\u672c\uff1a<\/p>\n<pre><code>#!\/bin\/bash\r\n\r\n# nginx_monitor.sh\r\nCHECK_INTERVAL=60  # \u6bcf60\u79d2\u68c0\u67e5\u4e00\u6b21\r\n\r\nwhile true\r\ndo\r\n    if ! pgrep nginx >\/dev\/null\r\n    then\r\n        echo \"$(date): Nginx\u5df2\u505c\u6b62\u3002\u5c1d\u8bd5\u91cd\u542f...\" >> \/var\/log\/nginx\/autostart.log\r\n        systemctl start nginx\r\n        \r\n        if [ $? -eq 0 ]; then\r\n            echo \"$(date): Nginx\u91cd\u542f\u6210\u529f\" >> \/var\/log\/nginx\/autostart.log\r\n        else\r\n            echo \"$(date): Nginx\u91cd\u542f\u5931\u8d25\" >> \/var\/log\/nginx\/autostart.log\r\n        fi\r\n    fi\r\n    sleep $CHECK_INTERVAL\r\ndone<\/code><\/pre>\n<p>\u8981\u5b9e\u65bd\u6b64\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n<ol>\n<li>\u5c06\u811a\u672c\u4fdd\u5b58\u4e3a <code>\/usr\/local\/bin\/nginx_monitor.sh<\/code><\/li>\n<li>\u4f7f\u5176\u53ef\u6267\u884c\uff1a<code>chmod +x \/usr\/local\/bin\/nginx_monitor.sh<\/code><\/li>\n<li>\u521b\u5efasystemd\u670d\u52a1\u4ee5\u81ea\u52a8\u8fd0\u884c\u811a\u672c<\/li>\n<\/ol>\n<h2><strong>\u4e3a\u76d1\u63a7\u811a\u672c\u8bbe\u7f6eSystemd\u670d\u52a1<\/strong><\/h2>\n<p>\u521b\u5efasystemd\u670d\u52a1\u6587\u4ef6\u4ee5\u786e\u4fdd\u6211\u4eec\u7684\u76d1\u63a7\u811a\u672c\u5728\u542f\u52a8\u65f6\u81ea\u52a8\u8fd0\u884c,\u5e76\u5728\u5931\u8d25\u65f6\u91cd\u542f\uff1a<\/p>\n<pre><code># \/etc\/systemd\/system\/nginx-monitor.service\r\n\r\n[Unit]\r\nDescription=Nginx\u76d1\u63a7\u670d\u52a1\r\nAfter=network.target nginx.service\r\n\r\n[Service]\r\nType=simple\r\nExecStart=\/usr\/local\/bin\/nginx_monitor.sh\r\nRestart=always\r\nRestartSec=10\r\n\r\n[Install]\r\nWantedBy=multi-user.target<\/code><\/pre>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u542f\u7528\u5e76\u542f\u52a8\u670d\u52a1\uff1a<\/p>\n<pre><code>systemctl daemon-reload\r\nsystemctl enable nginx-monitor\r\nsystemctl start nginx-monitor<\/code><\/pre>\n<h2><strong>\u65b9\u6cd5\u4e8c\uff1a\u5229\u7528Systemd\u7684\u5185\u7f6e\u6062\u590d\u529f\u80fd<\/strong><\/h2>\n<p>\u73b0\u4ee3\u7f8e\u56fd\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u901a\u5e38\u4f7f\u7528systemd\u3002\u6211\u4eec\u53ef\u4ee5\u914d\u7f6e\u5b83\u6765\u81ea\u52a8\u5904\u7406Nginx\u5d29\u6e83\u3002\u4fee\u6539\u60a8\u7684Nginx systemd\u670d\u52a1\u6587\u4ef6\uff1a<\/p>\n<pre><code># \/etc\/systemd\/system\/nginx.service.d\/override.conf\r\n\r\n[Service]\r\nRestart=always\r\nRestartSec=5s\r\nStartLimitInterval=500s\r\nStartLimitBurst=5<\/code><\/pre>\n<p>\u8fd9\u4e9b\u53c2\u6570\u544a\u8bc9systemd\uff1a<\/p>\n<ul>\n<li>\u5728\u5d29\u6e83\u65f6\u59cb\u7ec8\u91cd\u542fNginx<\/li>\n<li>\u91cd\u542f\u5c1d\u8bd5\u4e4b\u95f4\u7b49\u5f855\u79d2<\/li>\n<li>\u5728500\u79d2\u5185\u5141\u8bb85\u6b21\u91cd\u542f\u5c1d\u8bd5<\/li>\n<li>\u6210\u529f\u8fd0\u884c\u540e\u91cd\u7f6e\u8ba1\u6570\u5668<\/li>\n<\/ul>\n<h2><strong>\u65b9\u6cd5\u4e09\uff1a\u5b9e\u65bdMonit\u8fdb\u884c\u9ad8\u7ea7\u76d1\u63a7<\/strong><\/h2>\n<p>\u5bf9\u4e8e\u4f01\u4e1a\u7ea7\u76d1\u63a7,Monit\u63d0\u4f9b\u4e86\u5bf9Nginx\u8fdb\u7a0b\u7684\u7cbe\u7ec6\u63a7\u5236\u3002\u5728\u670d\u52a1\u5668\u4e0a\u5b89\u88c5Monit\uff1a<\/p>\n<pre><code>apt-get update && apt-get install monit -y<\/code><\/pre>\n<p>\u914d\u7f6eMonit\u6765\u76d1\u63a7Nginx\uff1a<\/p>\n<pre><code># \/etc\/monit\/conf.d\/nginx\r\n\r\ncheck process nginx with pidfile \/var\/run\/nginx.pid\r\n    start program = \"\/usr\/sbin\/service nginx start\"\r\n    stop program = \"\/usr\/sbin\/service nginx stop\"\r\n    if failed host 127.0.0.1 port 80 protocol http\r\n        then restart\r\n    if 5 restarts within 5 cycles then timeout\r\n    if memory usage > 90% for 5 cycles then restart<\/code><\/pre>\n<h2><strong>Nginx\u8fd0\u884c\u65f6\u95f4\u7ba1\u7406\u6700\u4f73\u5b9e\u8df5<\/strong><\/h2>\n<p>\u9664\u4e86\u81ea\u52a8\u91cd\u542f\u5916,\u5728\u7f8e\u56fd\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u4e2d\u5b9e\u65bd\u8fd9\u4e9b\u505a\u6cd5\u5c06\u663e\u8457\u63d0\u9ad8\u60a8\u7684Nginx\u53ef\u9760\u6027\uff1a<\/p>\n<h3>1. \u5b9e\u65bd\u9002\u5f53\u7684\u65e5\u5fd7\u8bb0\u5f55<\/h3>\n<p>\u914d\u7f6e\u8be6\u7ec6\u7684\u65e5\u5fd7\u8bb0\u5f55\u4ee5\u8ddf\u8e2a\u91cd\u542f\u4e8b\u4ef6\u5e76\u8bc6\u522b\u6a21\u5f0f\uff1a<\/p>\n<pre><code># \/etc\/nginx\/nginx.conf\r\n\r\nerror_log \/var\/log\/nginx\/error.log warn;\r\nerror_log \/var\/log\/nginx\/debug.log debug;\r\n\r\nhttp {\r\n    log_format detailed '$remote_addr - $remote_user [$time_local] '\r\n                        '\"$request\" $status $body_bytes_sent '\r\n                        '\"$http_referer\" \"$http_user_agent\" '\r\n                        '$request_time';\r\n    \r\n    access_log \/var\/log\/nginx\/access.log detailed buffer=32k flush=5s;\r\n}<\/code><\/pre>\n<h3>2. \u8d44\u6e90\u76d1\u63a7\u8bbe\u7f6e<\/h3>\n<p>\u521b\u5efa\u4e00\u4e2a\u5168\u9762\u7684\u76d1\u63a7\u811a\u672c\u6765\u68c0\u67e5\u591a\u4e2a\u5065\u5eb7\u6307\u6807\uff1a<\/p>\n<pre><code>#!\/bin\/bash\r\n\r\n# health_check.sh\r\nNGINX_THRESHOLD=80\r\nEMAIL=\"admin@yourdomain.com\"\r\n\r\ncheck_nginx_workers() {\r\n    worker_count=$(ps aux | grep \"nginx: worker\" | grep -v grep | wc -l)\r\n    if [ $worker_count -lt 1 ]; then\r\n        echo \"\u4e25\u91cd\uff1a\u672a\u53d1\u73b0Nginx\u5de5\u4f5c\u8fdb\u7a0b\" | mail -s \"Nginx\u8b66\u62a5\" $EMAIL\r\n        systemctl restart nginx\r\n    fi\r\n}\r\n\r\ncheck_memory_usage() {\r\n    memory_usage=$(free | grep Mem | awk '{print $3\/$2 * 100.0}')\r\n    if [ $(echo \"$memory_usage > $NGINX_THRESHOLD\" | bc) -eq 1 ]; then\r\n        echo \"\u8b66\u544a\uff1a\u5185\u5b58\u4f7f\u7528\u7387\u9ad8 - $memory_usage%\" | mail -s \"\u5185\u5b58\u8b66\u62a5\" $EMAIL\r\n    fi\r\n}\r\n\r\ncheck_nginx_workers\r\ncheck_memory_usage<\/code><\/pre>\n<h3>3. \u8d1f\u8f7d\u5747\u8861\u914d\u7f6e<\/h3>\n<p>\u5bf9\u4e8e\u9ad8\u6d41\u91cf\u573a\u666f\uff0c\u5b9e\u65bd\u8d1f\u8f7d\u5747\u8861\u4ee5\u5206\u914d\u8bf7\u6c42\u5e76\u9632\u6b62\u670d\u52a1\u5668\u8fc7\u8f7d\uff1a<\/p>\n<pre><code>http {\r\n    upstream backend {\r\n        server backend1.example.com:8080 max_fails=3 fail_timeout=30s;\r\n        server backend2.example.com:8080 max_fails=3 fail_timeout=30s;\r\n        keepalive 32;\r\n    }\r\n    \r\n    server {\r\n        location \/ {\r\n            proxy_pass http:\/\/backend;\r\n            proxy_http_version 1.1;\r\n            proxy_set_header Connection \"\";\r\n            health_check interval=5s fails=3 passes=2;\r\n        }\r\n    }\r\n}<\/code><\/pre>\n<h2><strong>\u5e38\u89c1\u95ee\u9898\u6545\u969c\u6392\u9664<\/strong><\/h2>\n<p>\u5728\u5b9e\u65bd\u81ea\u52a8\u91cd\u542f\u89e3\u51b3\u65b9\u6848\u65f6\uff0c\u60a8\u53ef\u80fd\u9047\u5230\u8fd9\u4e9b\u6311\u6218\uff1a<\/p>\n<ul>\n<li>\u7531\u4e8e\u914d\u7f6e\u9519\u8bef\u5bfc\u81f4\u7684\u65e0\u9650\u91cd\u542f\u5faa\u73af<\/li>\n<li>\u5feb\u901f\u91cd\u542f\u5c1d\u8bd5\u5bfc\u81f4\u7684\u8d44\u6e90\u8017\u5c3d<\/li>\n<li>\u76d1\u63a7\u670d\u52a1\u51b2\u7a81<\/li>\n<li>\u65e5\u5fd7\u8f6e\u8f6c\u95ee\u9898<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\uff1a<\/p>\n<pre><code># \u6dfb\u52a0\u5230 \/etc\/nginx\/nginx.conf\r\nworker_rlimit_nofile 30000;\r\nevents {\r\n    worker_connections 10000;\r\n    multi_accept on;\r\n    use epoll;\r\n}\r\n\r\n# \u7cfb\u7edf\u9650\u5236\u5728 \/etc\/security\/limits.conf\r\nnginx soft nofile 30000\r\nnginx hard nofile 30000<\/code><\/pre>\n<h2><strong>\u4f01\u4e1a\u73af\u5883\u7684\u9ad8\u7ea7\u914d\u7f6e<\/strong><\/h2>\n<p>\u5bf9\u4e8e\u5904\u7406\u5173\u952e\u4e1a\u52a1\u5e94\u7528\u7a0b\u5e8f\u7684\u7f8e\u56fd\u670d\u52a1\u5668\u79df\u7528\u63d0\u4f9b\u5546\uff0c\u8bf7\u5b9e\u65bd\u8fd9\u4e9b\u9ad8\u7ea7\u914d\u7f6e\uff1a<\/p>\n<h3>1. \u96f6\u505c\u673a\u91cd\u8f7d\u811a\u672c<\/h3>\n<pre><code>#!\/bin\/bash\r\n# graceful_reload.sh\r\n\r\n# \u91cd\u8f7d\u524d\u9a8c\u8bc1\u914d\u7f6e\r\nnginx -t\r\nif [ $? -ne 0 ]; then\r\n    echo \"\u914d\u7f6e\u6d4b\u8bd5\u5931\u8d25\u3002\u4e2d\u6b62\u91cd\u8f7d\u3002\"\r\n    exit 1\r\nfi\r\n\r\n# \u6267\u884c\u4f18\u96c5\u91cd\u8f7d\r\nkill -HUP $(cat \/var\/run\/nginx.pid)\r\n\r\n# \u9a8c\u8bc1\u670d\u52a1\u72b6\u6001\r\nsleep 2\r\nsystemctl status nginx | grep \"active (running)\"<\/code><\/pre>\n<h3>2. \u589e\u5f3a\u578b\u76d1\u63a7\u96c6\u6210<\/h3>\n<p>\u4f7f\u7528\u81ea\u5b9a\u4e49\u5065\u5eb7\u68c0\u67e5\u7aef\u70b9\u96c6\u6210\u5916\u90e8\u76d1\u63a7\u670d\u52a1\uff1a<\/p>\n<pre><code>location \/health {\r\n    access_log off;\r\n    add_header Content-Type text\/plain;\r\n    return 200 'OK';\r\n}<\/code><\/pre>\n<h3>3. \u81ea\u52a8\u5907\u4efd\u914d\u7f6e<\/h3>\n<pre><code>#!\/bin\/bash\r\n# backup_nginx_config.sh\r\n\r\nBACKUP_DIR=\"\/etc\/nginx\/backups\"\r\nDATE=$(date +%Y%m%d_%H%M%S)\r\n\r\n# \u521b\u5efa\u5907\u4efd\u76ee\u5f55\r\nmkdir -p $BACKUP_DIR\r\n\r\n# \u5907\u4efd\u914d\u7f6e\u6587\u4ef6\r\ntar -czf $BACKUP_DIR\/nginx_config_$DATE.tar.gz \/etc\/nginx\/\r\n\r\n# \u53ea\u4fdd\u7559\u6700\u8fd17\u5929\u7684\u5907\u4efd\r\nfind $BACKUP_DIR -type f -mtime +7 -delete<\/code><\/pre>\n<h2><strong>\u7ed3\u8bba\u548c\u6700\u4f73\u5b9e\u8df5\u603b\u7ed3<\/strong><\/h2>\n<p>\u5728\u7f8e\u56fd\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u4e2d\u7ef4\u62a4Nginx\u670d\u52a1\u5668\u7684\u9ad8\u53ef\u7528\u6027\u9700\u8981\u591a\u5c42\u6b21\u7684\u65b9\u6cd5\u3002\u901a\u8fc7\u5b9e\u65bd\u81ea\u52a8\u91cd\u542f\u673a\u5236\u3001\u9002\u5f53\u7684\u76d1\u63a7\u548c\u9884\u9632\u63aa\u65bd\uff0c\u60a8\u53ef\u4ee5\u4e3a\u60a8\u7684Web\u5e94\u7528\u7a0b\u5e8f\u5b9e\u73b0\u6700\u4f73\u7684\u8fd0\u884c\u65f6\u95f4\u3002\u8bf7\u8bb0\u4f4f\uff1a<\/p>\n<ul>\n<li>\u9996\u5148\u5728\u6d4b\u8bd5\u73af\u5883\u4e2d\u6d4b\u8bd5\u6240\u6709\u76d1\u63a7\u811a\u672c<\/li>\n<li>\u5b9e\u65bd\u9002\u5f53\u7684\u65e5\u5fd7\u8bb0\u5f55\u548c\u8b66\u62a5\u673a\u5236<\/li>\n<li>\u5b9a\u671f\u5ba1\u67e5\u548c\u66f4\u65b0\u60a8\u7684\u76d1\u63a7\u9608\u503c<\/li>\n<li>\u968f\u65f6\u51c6\u5907\u597d\u5907\u4efd\u914d\u7f6e<\/li>\n<li>\u4e3a\u56e2\u961f\u53c2\u8003\u8bb0\u5f55\u6240\u6709\u81ea\u5b9a\u4e49\u89e3\u51b3\u65b9\u6848<\/li>\n<\/ul>\n<p>\u5728\u60a8\u7684nginx\u76d1\u63a7\u548c\u81ea\u52a8\u5316\u7b56\u7565\u4e2d\u4fdd\u6301\u79ef\u6781\u4e3b\u52a8\uff0c\u4ee5\u786e\u4fdd\u53ef\u9760\u7684\u670d\u52a1\u5668\u79df\u7528\u670d\u52a1\u5e76\u6700\u5c0f\u5316\u505c\u673a\u65f6\u95f4\u3002\u8003\u8651\u5c06\u8fd9\u4e9b\u89e3\u51b3\u65b9\u6848\u4f5c\u4e3a\u60a8\u66f4\u5e7f\u6cdb\u7684\u670d\u52a1\u5668\u7ba1\u7406\u5de5\u5177\u5305\u7684\u4e00\u90e8\u5206\u6765\u5b9e\u65bd\uff0c\u5c24\u5176\u662f\u5728\u8981\u6c42\u82db\u523b\u7684\u7f8e\u56fd\u670d\u52a1\u5668\u79df\u7528\u548c\u670d\u52a1\u5668\u6258\u7ba1\u73af\u5883\u4e2d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u7f8e\u56fd\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u4e2d\u4fdd\u6301Nginx\u670d\u52a1\u5668\u7684\u9ad8\u53ef\u7528\u6027\u81f3\u5173\u91cd\u8981\u3002\u5f53Nginx\u670d\u52a1\u5668\u610f\u5916\u5d29\u6e83\u65f6,\u6bcf\u4e00\u79d2\u7684\u505c\u673a\u65f6\u95f4\u90fd\u53ef\u80fd\u5f71\u54cd\u7528\u6237\u4f53\u9a8c\u548c\u4e1a\u52a1\u8fd0\u8425\u3002\u672c\u6307\u5357\u63a2\u8ba8\u4e86\u5728Nginx\u505c\u6b62\u65f6\u81ea\u52a8\u91cd\u542f\u7684\u7ecf\u8fc7\u5b9e\u6218\u68c0\u9a8c\u7684\u65b9\u6cd5,\u786e\u4fdd\u60a8\u7684Web\u5e94\u7528\u7a0b\u5e8f\u83b7\u5f97\u6700\u4f73\u7684\u8fd0\u884c\u65f6\u95f4\u3002 \u4e86\u89e3Nginx\u5d29\u6e83\u7684\u539f\u56e0 \u5728\u6df1\u5165\u89e3\u51b3\u65b9\u6848\u4e4b\u524d,\u8ba9\u6211\u4eec\u5148\u770b\u770b\u751f\u4ea7\u73af\u5883\u4e2dNginx\u6545\u969c\u7684\u5e38\u89c1\u539f\u56e0\uff1a \u6d41\u91cf\u6fc0\u589e\u5bfc\u81f4\u5185\u5b58\u8017\u5c3d \u66f4\u65b0\u540e\u7684\u914d\u7f6e\u8bed\u6cd5\u9519\u8bef \u7cfb\u7edf\u8d44\u6e90\u9650\u5236 \u5185\u6838\u7ea7\u95ee\u9898 \u8fdb\u7a0b\u610f\u5916\u7ec8\u6b62 \u81ea\u52a8\u91cd\u542f\u7684\u524d\u63d0\u6761\u4ef6 \u786e\u4fdd\u60a8\u7684\u7cfb\u7edf\u6ee1\u8db3\u4ee5\u4e0b\u8981\u6c42\uff1a \u670d\u52a1\u5668\u7684root\u6216sudo\u8bbf\u95ee\u6743\u9650 \u5df2\u5b89\u88c5\u5e76\u914d\u7f6eNginx \u57fa\u672c\u7684\u547d\u4ee4\u884c\u77e5\u8bc6 \u6587\u672c\u7f16\u8f91\u5668(vim\u3001nano\u6216\u7c7b\u4f3c\u5de5\u5177) \u65b9\u6cd5\u4e00\uff1a\u521b\u5efaBash\u76d1\u63a7\u811a\u672c \u8ba9\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u76d1\u63a7Nginx\u72b6\u6001\u5e76\u89e6\u53d1\u81ea\u52a8\u91cd\u542f\u7684\u5f3a\u5927shell\u811a\u672c\uff1a #!\/bin\/bash # nginx_monitor.sh CHECK_INTERVAL=60 # \u6bcf60\u79d2\u68c0\u67e5\u4e00\u6b21 while true do if ! pgrep nginx >\/dev\/null then echo &#8220;$(date): Nginx\u5df2\u505c\u6b62\u3002\u5c1d\u8bd5\u91cd\u542f&#8230;&#8221; >> \/var\/log\/nginx\/autostart.log systemctl start nginx if [ $? -eq 0 ]; then echo &#8220;$(date): Nginx\u91cd\u542f\u6210\u529f&#8221; >> \/var\/log\/nginx\/autostart.log else echo &#8220;$(date): Nginx\u91cd\u542f\u5931\u8d25&#8221; [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/www.varidata.com\/zh-cn\/knowledge\/how-to-automatically-restart-nginx-when-it-goes-down\/\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":3,"featured_media":18943,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[80],"tags":[],"class_list":["post-18946","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5982\u4f55\u4f7fNginx\u5b95\u673a\u65f6\u81ea\u52a8\u91cd\u542f?<\/title>\n<meta name=\"description\" content=\"\u638c\u63e1\u4f7f\u7528shell\u811a\u672c\u3001systemd\u548c\u76d1\u63a7\u5de5\u5177\u5728\u7f8e\u56fd\u670d\u52a1\u5668\u4e0a\u81ea\u52a8\u91cd\u542fNginx\u7684\u6280\u5de7\u3002\u4e3a\u7cfb\u7edf\u7ba1\u7406\u5458\u63d0\u4f9b\u4fdd\u630199.9%\u8fd0\u884c\u65f6\u95f4\u7684\u5b9e\u7528\u89e3\u51b3\u65b9\u6848\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.varidata.com\/zh-cn\/knowledge\/how-to-automatically-restart-nginx-when-it-goes-down\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5982\u4f55\u4f7fNginx\u5b95\u673a\u65f6\u81ea\u52a8\u91cd\u542f?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.varidata.com\/zh-cn\/knowledge\/how-to-automatically-restart-nginx-when-it-goes-down\/\" \/>\n<meta property=\"og:site_name\" content=\"Varidata Limited\" \/>\n<meta property=\"article:published_time\" content=\"2024-05-31T03:51:57+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-03-27T04:12:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.varidata.com\/wp-content\/uploads\/2025\/03\/var_0531.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"611\" 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