{"id":32314,"date":"2026-07-31T10:00:00","date_gmt":"2026-07-31T02:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=32314"},"modified":"2026-08-03T21:27:30","modified_gmt":"2026-08-03T13:27:30","slug":"node-exporter-vps-alerting","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/guides\/node-exporter-vps-alerting\/","title":{"rendered":"Prometheus Node Exporter \u76d1\u63a7 VPS\uff1a\u5bb9\u91cf\u544a\u8b66\u914d\u7f6e\u6307\u5357"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/08\/node-exporter-vps-alerting-cover.webp\" alt=\"Prometheus Node Exporter \u76d1\u63a7 VPS \u5c01\u9762\u56fe\" loading=\"lazy\" \/><\/p>\n<p>Prometheus Node Exporter \u76d1\u63a7 <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\u5e76\u4e0d\u662f\u4e3a\u4e86\u628a\u9875\u9762\u586b\u6ee1\u66f2\u7ebf\uff0c\u800c\u662f\u4e3a\u4e86\u56de\u7b54\u4e00\u4e2a\u66f4\u5b9e\u9645\u7684\u95ee\u9898\uff1a\u7f51\u7ad9\u4e3a\u4ec0\u4e48\u53d8\u6162\u3001\u78c1\u76d8\u4ec0\u4e48\u65f6\u5019\u4f1a\u6ee1\u3001\u8d1f\u8f7d\u5347\u9ad8\u524d\u80fd\u4e0d\u80fd\u63d0\u524d\u89e3\u51b3\u3002\u5f88\u591a\u4e2d\u5c0f\u56e2\u961f\u53ea\u6709\u4e00\u4e24\u53f0\u4e1a\u52a1\u670d\u52a1\u5668\uff0c\u5e73\u65f6\u9760\u767b\u5f55\u9762\u677f\u6216\u4e34\u65f6\u6267\u884c <code>top<\/code>\u3001<code>df -h<\/code> \u6392\u67e5\uff1b\u7b49\u8bbf\u95ee\u5f02\u5e38\u624d\u53d1\u73b0 CPU \u957f\u65f6\u95f4\u8dd1\u6ee1\u3001\u78c1\u76d8\u53ea\u5269\u51e0\u767e MB\uff0c\u5904\u7406\u6210\u672c\u4f1a\u9ad8\u5f88\u591a\u3002\u672c\u6587\u4f1a\u7528\u4e00\u6761\u6e05\u6670\u4e3b\u7ebf\uff0c\u5e2e\u52a9\u4f60\u4ece\u6307\u6807\u91c7\u96c6\u3001Prometheus \u62c9\u53d6\u914d\u7f6e\u3001\u544a\u8b66\u89c4\u5219\u5230\u5bb9\u91cf\u590d\u76d8\uff0c\u5efa\u7acb\u4e00\u5957\u9002\u5408 VPS\uff08\u865a\u62df<a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">\u4e13\u7528\u670d\u52a1\u5668<\/a>\uff09\u7684\u57fa\u7840\u76d1\u63a7\u6307\u5357\u3002<\/p>\n<h2>\u5148\u660e\u786e\uff1aNode Exporter \u8d1f\u8d23\u91c7\u96c6\u4ec0\u4e48\uff0c\u4e0d\u8d1f\u8d23\u4ec0\u4e48<\/h2>\n<p>Node Exporter \u662f Prometheus \u751f\u6001\u4e2d\u5e38\u7528\u7684\u4e3b\u673a\u6307\u6807\u91c7\u96c6\u7ec4\u4ef6\uff0c\u5b83\u4f1a\u628a Linux \u7cfb\u7edf\u7684 CPU\u3001\u5185\u5b58\u3001\u78c1\u76d8\u3001\u7f51\u7edc\u3001\u6587\u4ef6\u7cfb\u7edf\u7b49\u6307\u6807\u66b4\u9732\u6210 HTTP \u63a5\u53e3\u3002Prometheus \u518d\u6309\u56fa\u5b9a\u5468\u671f\u6293\u53d6\u8fd9\u4e9b\u6307\u6807\uff0cAlertmanager \u6216\u5176\u4ed6\u544a\u8b66\u901a\u9053\u6839\u636e\u89c4\u5219\u89e6\u53d1\u901a\u77e5\u3002\u4f60\u53ef\u4ee5\u8fd9\u6837\u7406\u89e3\uff1aNode Exporter \u50cf\u670d\u52a1\u5668\u4e0a\u7684\u201c\u4f53\u68c0\u4eea\u201d\uff0cPrometheus \u662f\u5b9a\u65f6\u8bfb\u53d6\u4f53\u68c0\u6570\u636e\u7684\u8bb0\u5f55\u7cfb\u7edf\uff0c\u544a\u8b66\u89c4\u5219\u5219\u662f\u5224\u65ad\u201c\u54ea\u4e9b\u6307\u6807\u5df2\u7ecf\u63a5\u8fd1\u98ce\u9669\u7ebf\u201d\u7684\u6807\u51c6\u3002<\/p>\n<p>\u5728 VPS\uff08\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668\uff09\u573a\u666f\u91cc\uff0c\u4f18\u5148\u5173\u6ce8 4 \u7c7b\u6307\u6807\u5c31\u591f\u4e86\u3002\u7b2c\u4e00\u7c7b\u662f CPU \u4f7f\u7528\u7387\u548c 1\/5\/15 \u5206\u949f\u8d1f\u8f7d\uff0c\u9002\u5408\u5224\u65ad\u77ac\u65f6\u5c16\u5cf0\u8fd8\u662f\u6301\u7eed\u538b\u529b\u3002\u7b2c\u4e8c\u7c7b\u662f\u5185\u5b58\u53ef\u7528\u91cf\u4e0e swap \u4f7f\u7528\u91cf\uff0c\u5982\u679c\u53ef\u7528\u5185\u5b58\u957f\u671f\u4f4e\u4e8e 10%\uff0c\u5e94\u7528\u5bb9\u6613\u51fa\u73b0\u6296\u52a8\u3002\u7b2c\u4e09\u7c7b\u662f\u6587\u4ef6\u7cfb\u7edf\u4f7f\u7528\u7387\uff0c\u751f\u4ea7\u73af\u5883\u5efa\u8bae\u5728 80% \u8bbe\u7f6e\u63d0\u9192\u300190% \u8bbe\u7f6e\u4e25\u91cd\u544a\u8b66\u3002\u7b2c\u56db\u7c7b\u662f\u7f51\u7edc\u6536\u53d1\u901f\u7387\u4e0e\u9519\u8bef\u5305\uff0c\u5b83\u80fd\u5e2e\u52a9\u5b9a\u4f4d\u7a81\u589e\u6d41\u91cf\u6216\u7f51\u5361\u5f02\u5e38\u3002<\/p>\n<p>\u8fd9\u5957\u76d1\u63a7\u4e0d\u80fd\u66ff\u4ee3\u5e94\u7528\u65e5\u5fd7\uff0c\u4e5f\u4e0d\u80fd\u76f4\u63a5\u544a\u8bc9\u4f60\u67d0\u6bb5\u4e1a\u52a1\u4ee3\u7801\u4e3a\u4f55\u6162\u3002\u5b83\u7684\u4ef7\u503c\u5728\u4e8e\u5148\u786e\u8ba4\u5e95\u5c42\u8d44\u6e90\u662f\u5426\u5065\u5eb7\uff0c\u518d\u51b3\u5b9a\u8981\u4e0d\u8981\u7ee7\u7eed\u8ffd\u67e5 Web \u670d\u52a1\u3001\u6570\u636e\u5e93\u3001\u7f13\u5b58\u6216\u4ee3\u7801\u903b\u8f91\u3002\u5982\u679c\u4f60\u8fd8\u5728\u89c4\u5212\u670d\u52a1\u5668\u89c4\u683c\uff0c\u53ef\u4ee5\u5148\u53c2\u8003 Hostease \u7684 <a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS\uff08\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668\uff09\u65b9\u6848<\/a>\uff0c\u628a CPU\u3001\u5185\u5b58\u548c\u78c1\u76d8\u5bb9\u91cf\u4e0e\u5b9e\u9645\u76d1\u63a7\u9608\u503c\u5bf9\u5e94\u8d77\u6765\u3002<\/p>\n<h2>\u5b89\u88c5 Node Exporter\uff0c\u5e76\u628a\u91c7\u96c6\u9762\u63a7\u5236\u5728\u5fc5\u8981\u8303\u56f4<\/h2>\n<p>Node Exporter \u672c\u8eab\u5f88\u8f7b\u91cf\uff0c\u5e38\u89c1\u90e8\u7f72\u65b9\u5f0f\u662f\u4ee5 systemd \u670d\u52a1\u8fd0\u884c\uff0c\u5e76\u76d1\u542c\u672c\u673a\u7684 <code>9100<\/code> \u7aef\u53e3\u3002\u4e3a\u4e86\u51cf\u5c11\u66b4\u9732\u9762\uff0c\u6211\u4eec\u5efa\u8bae\u53ea\u5141\u8bb8 Prometheus \u670d\u52a1\u5668\u8bbf\u95ee\u8be5\u7aef\u53e3\uff0c\u4e0d\u8981\u628a <code>9100<\/code> \u76f4\u63a5\u5f00\u653e\u7ed9\u516c\u7f51\u3002\u5bf9\u4e8e\u5355\u53f0 VPS\uff08\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668\uff09\u81ea\u76d1\u63a7\uff0c\u53ef\u4ee5\u8ba9 Prometheus \u4e0e Node Exporter \u5728\u540c\u4e00\u53f0\u673a\u5668\u4e0a\u8fd0\u884c\uff1b\u5bf9\u4e8e\u591a\u53f0\u670d\u52a1\u5668\uff0c\u5219\u628a Prometheus \u653e\u5728\u56fa\u5b9a\u7ba1\u7406\u8282\u70b9\uff0c\u518d\u901a\u8fc7\u9632\u706b\u5899\u653e\u884c\u7ba1\u7406\u8282\u70b9 IP\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u5957\u5e38\u89c1\u5b89\u88c5\u601d\u8def\uff0c\u7248\u672c\u53f7\u9700\u8981\u6309\u5b98\u65b9\u53d1\u5e03\u9875\u9009\u62e9\u5f53\u524d\u7a33\u5b9a\u7248\u672c\uff0c\u4e0d\u8981\u957f\u671f\u590d\u5236\u65e7\u811a\u672c\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"bash\" data-enlighter-linenumbers=\"false\">\nuseradd --no-create-home --shell \/usr\/sbin\/nologin node_exporter\nmkdir -p \/opt\/node_exporter\ninstall -o node_exporter -g node_exporter -m 0755 node_exporter \/usr\/local\/bin\/node_exporter\nchown node_exporter:node_exporter \/usr\/local\/bin\/node_exporter\n<\/pre>\n<p>\u968f\u540e\u521b\u5efa systemd \u670d\u52a1\u6587\u4ef6\uff0c\u5173\u952e\u70b9\u662f\u56fa\u5b9a\u8fd0\u884c\u7528\u6237\u3001\u91cd\u542f\u7b56\u7565\u548c\u76d1\u542c\u5730\u5740\u3002\u5982\u679c Prometheus \u4e0e Node Exporter \u5728\u540c\u4e00\u53f0\u673a\u5668\u4e0a\uff0c\u53ef\u4ee5\u628a\u76d1\u542c\u5730\u5740\u9650\u5236\u4e3a <code>127.0.0.1:9100<\/code>\uff1b\u5982\u679c\u9700\u8981\u8fdc\u7a0b\u62c9\u53d6\uff0c\u5219\u7ed3\u5408\u9632\u706b\u5899\u53ea\u653e\u884c Prometheus \u8282\u70b9\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"ini\" data-enlighter-linenumbers=\"false\">\n[Unit]\nDescription=Node Exporter\nAfter=network.target\n\n[Service]\nUser=node_exporter\nGroup=node_exporter\nType=simple\nExecStart=\/usr\/local\/bin\/node_exporter --web.listen-address=127.0.0.1:9100\nRestart=on-failure\nRestartSec=5s\n\n[Install]\nWantedBy=multi-user.target\n<\/pre>\n<p>\u542f\u7528\u670d\u52a1\u540e\uff0c\u7528 <code>curl http:\/\/127.0.0.1:9100\/metrics<\/code> \u68c0\u67e5\u662f\u5426\u80fd\u770b\u5230 <code>node_cpu_seconds_total<\/code>\u3001<code>node_memory_MemAvailable_bytes<\/code> \u7b49\u6307\u6807\u3002\u82e5\u63a5\u53e3\u6b63\u5e38\uff0c\u518d\u8fdb\u5165 Prometheus \u914d\u7f6e\uff1b\u5982\u679c\u63a5\u53e3\u4e3a\u7a7a\u6216\u8fd4\u56de\u8fde\u63a5\u5931\u8d25\uff0c\u4f18\u5148\u68c0\u67e5 systemd \u65e5\u5fd7\u3001\u4e8c\u8fdb\u5236\u6743\u9650\u548c\u76d1\u542c\u5730\u5740\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u4fee\u6539 Prometheus \u914d\u7f6e\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/08\/node-exporter-vps-alerting-collector.webp\" alt=\"Node Exporter \u91c7\u96c6\u8fb9\u754c\u793a\u610f\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u914d\u7f6e Prometheus \u62c9\u53d6\uff0c\u5e76\u7528\u6807\u7b7e\u533a\u5206\u4e1a\u52a1\u89d2\u8272<\/h2>\n<p>Prometheus \u7684 <code>scrape_configs<\/code> \u51b3\u5b9a\u5b83\u4ece\u54ea\u91cc\u62c9\u53d6\u6307\u6807\u3002\u5c0f\u56e2\u961f\u5e38\u89c1\u9519\u8bef\u662f\u628a\u6240\u6709\u670d\u52a1\u5668\u90fd\u5199\u6210\u88f8 IP\uff0c\u540e\u671f\u6392\u969c\u65f6\u53ea\u770b\u5230 <code>instance=\"10.0.0.5:9100\"<\/code>\uff0c\u5f88\u96be\u5224\u65ad\u8fd9\u662f Web \u8282\u70b9\u3001\u6570\u636e\u5e93\u8282\u70b9\u8fd8\u662f\u6d4b\u8bd5\u73af\u5883\u3002\u66f4\u7a33\u59a5\u7684\u505a\u6cd5\u662f\u5728\u914d\u7f6e\u4e2d\u8865\u5145 <code>job<\/code>\u3001<code>role<\/code>\u3001<code>env<\/code> \u7b49\u6807\u7b7e\uff0c\u8ba9\u544a\u8b66\u6d88\u606f\u80fd\u76f4\u63a5\u8bf4\u660e\u98ce\u9669\u6765\u6e90\u3002<\/p>\n<p>\u4e00\u4e2a\u57fa\u7840\u914d\u7f6e\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"yaml\" data-enlighter-linenumbers=\"false\">\nscrape_configs:\n  - job_name: \"node\"\n    scrape_interval: 15s\n    static_configs:\n      - targets: [\"127.0.0.1:9100\"]\n        labels:\n          env: \"prod\"\n          role: \"web\"\n<\/pre>\n<p><code>scrape_interval<\/code> \u4e0d\u5fc5\u4e00\u5f00\u59cb\u5c31\u8bbe\u5f97\u5f88\u77ed\u3002\u5bf9\u666e\u901a\u7f51\u7ad9\u670d\u52a1\u5668\u6765\u8bf4\uff0c15 \u79d2\u5230 30 \u79d2\u8db3\u4ee5\u53d1\u73b0\u6301\u7eed\u6027\u8d44\u6e90\u95ee\u9898\uff1b\u5982\u679c\u8bbe\u7f6e\u6210 1 \u79d2\uff0cPrometheus \u81ea\u8eab\u5b58\u50a8\u538b\u529b\u4f1a\u589e\u52a0\uff0c\u957f\u671f\u6536\u76ca\u5374\u6709\u9650\u3002\u4fdd\u5b58\u914d\u7f6e\u540e\u6267\u884c <code>promtool check config prometheus.yml<\/code>\uff0c\u518d\u91cd\u8f7d Prometheus\u3002\u8fdb\u5165\u67e5\u8be2\u9875\u9762\u540e\uff0c\u5148\u8fd0\u884c <code>up{job=\"node\"}<\/code>\uff0c\u8fd4\u56de <code>1<\/code> \u4ee3\u8868\u62c9\u53d6\u6b63\u5e38\uff0c\u8fd4\u56de <code>0<\/code> \u5219\u9700\u8981\u68c0\u67e5\u7f51\u7edc\u3001\u9632\u706b\u5899\u6216 Node Exporter \u8fdb\u7a0b\u3002<\/p>\n<p>\u66f4\u591a<a href=\"https:\/\/cn.hostease.com\/blog\/guides\/ttfb-hosting-optimization\/\">\u7f51\u7ad9\u6027\u80fd<\/a>\u6392\u67e5\u601d\u8def\uff0c\u4e5f\u53ef\u4ee5\u7ed3\u5408 <a href=\"https:\/\/cn.hostease.com\/blog\/guides\/ttfb-hosting-optimization\/\">TTFB \u4e0e\u4e3b\u673a\u6027\u80fd\u4f18\u5316\u6307\u5357<\/a> \u4e00\u8d77\u770b\u3002<\/p>\n<h2>\u628a\u544a\u8b66\u89c4\u5219\u5199\u6210\u201c\u53ef\u5904\u7406\u201d\u7684\u4fe1\u53f7\uff0c\u800c\u4e0d\u662f\u566a\u97f3<\/h2>\n<p>\u544a\u8b66\u89c4\u5219\u7684\u76ee\u6807\u4e0d\u662f\u8d8a\u591a\u8d8a\u597d\uff0c\u800c\u662f\u8ba9\u503c\u73ed\u4eba\u5458\u6536\u5230\u540e\u77e5\u9053\u8be5\u505a\u4ec0\u4e48\u3002\u4ee5 CPU \u4e3a\u4f8b\uff0c\u5355\u6b21 90% \u4f7f\u7528\u7387\u5e76\u4e0d\u4e00\u5b9a\u662f\u4e8b\u6545\uff0c\u53ef\u80fd\u53ea\u662f\u5907\u4efd\u4efb\u52a1\u6216\u6279\u91cf\u811a\u672c\uff1b\u4f46 5 \u5206\u949f\u5e73\u5747\u8d1f\u8f7d\u6301\u7eed\u9ad8\u4e8e CPU \u6838\u5fc3\u6570\u7684 1.5 \u500d\uff0c\u5c31\u66f4\u503c\u5f97\u5173\u6ce8\u3002\u5185\u5b58\u4e5f\u7c7b\u4f3c\uff0cLinux \u4f1a\u79ef\u6781\u4f7f\u7528\u7f13\u5b58\uff0c\u76f4\u63a5\u770b <code>MemFree<\/code> \u5bb9\u6613\u8bef\u5224\uff0c\u901a\u5e38\u5e94\u4f7f\u7528 <code>MemAvailable<\/code> \u5224\u65ad\u53ef\u7528\u5185\u5b58\u3002<\/p>\n<p>\u4e0b\u9762\u662f 3 \u6761\u9002\u5408 VPS\uff08\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668\uff09\u8d77\u6b65\u7684\u544a\u8b66\u601d\u8def\uff1a<\/p>\n<ul>\n<li>\u78c1\u76d8\u4f7f\u7528\u7387\u8d85\u8fc7 80% \u4e14\u6301\u7eed 10 \u5206\u949f\uff0c\u5148\u63d0\u9192\u6e05\u7406\u65e5\u5fd7\u3001\u5907\u4efd\u5305\u6216\u6269\u5bb9\uff1b\u8d85\u8fc7 90% \u6301\u7eed 5 \u5206\u949f\uff0c\u5347\u7ea7\u4e3a\u4e25\u91cd\u544a\u8b66\u3002<\/li>\n<li>\u53ef\u7528\u5185\u5b58\u4f4e\u4e8e 10% \u4e14 swap \u6301\u7eed\u589e\u957f\uff0c\u68c0\u67e5\u8fdb\u7a0b\u5185\u5b58\u3001\u7f13\u5b58\u7b56\u7565\u548c\u8ba1\u5212\u4efb\u52a1\uff0c\u4e0d\u8981\u53ea\u91cd\u542f\u670d\u52a1\u3002<\/li>\n<li><code>up{job=\"node\"} == 0<\/code> \u6301\u7eed 3 \u5206\u949f\uff0c\u5148\u5224\u65ad\u662f\u8282\u70b9\u5b95\u673a\u3001\u7f51\u7edc\u4e2d\u65ad\u8fd8\u662f Node Exporter \u670d\u52a1\u5f02\u5e38\u3002<\/li>\n<\/ul>\n<p>\u5bf9\u5e94\u7684 Prometheus \u89c4\u5219\u53ef\u4ee5\u653e\u5728 <code>node-alerts.yml<\/code>\uff0c\u5e76\u901a\u8fc7 <code>rule_files<\/code> \u5f15\u5165\u3002\u4e0b\u9762\u793a\u4f8b\u53ea\u4fdd\u7559\u6838\u5fc3\u8868\u8fbe\u5f0f\uff0c\u5b9e\u9645\u73af\u5883\u5e94\u6839\u636e\u4e1a\u52a1\u5cf0\u503c\u8c03\u6574\u9608\u503c\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"yaml\" data-enlighter-linenumbers=\"false\">\ngroups:\n  - name: node-alerts\n    rules:\n      - alert: NodeDiskUsageHigh\n        expr: (1 - node_filesystem_avail_bytes{fstype!~\"tmpfs|overlay\"} \/ node_filesystem_size_bytes{fstype!~\"tmpfs|overlay\"}) * 100 > 80\n        for: 10m\n        labels:\n          severity: warning\n        annotations:\n          summary: \"Disk usage is high\"\n<\/pre>\n<p>\u5199\u5b8c\u89c4\u5219\u540e\u5fc5\u987b\u6267\u884c <code>promtool check rules node-alerts.yml<\/code>\u3002\u5982\u679c\u89c4\u5219\u8bed\u6cd5\u4e0d\u901a\u8fc7\uff0cPrometheus \u53ef\u80fd\u65e0\u6cd5\u52a0\u8f7d\u89c4\u5219\u6587\u4ef6\uff1b\u5982\u679c\u6807\u7b7e\u9009\u62e9\u8fc7\u5bbd\uff0c\u5bb9\u5668\u4e34\u65f6\u6587\u4ef6\u7cfb\u7edf\u3001\u53ea\u8bfb\u6302\u8f7d\u6216\u865a\u62df\u6587\u4ef6\u7cfb\u7edf\u4e5f\u4f1a\u89e6\u53d1\u8bef\u62a5\u3002\u6211\u4eec\u5efa\u8bae\u6bcf\u6761\u89c4\u5219\u4e0a\u7ebf\u524d\u5148\u5728 Prometheus \u67e5\u8be2\u9875\u9762\u8dd1\u4e00\u6b21\u8868\u8fbe\u5f0f\uff0c\u786e\u8ba4\u8fd4\u56de\u7684\u662f\u4f60\u771f\u6b63\u5173\u5fc3\u7684\u78c1\u76d8\u6216\u7f51\u5361\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/08\/node-exporter-vps-alerting-thresholds.webp\" alt=\"\u5bb9\u91cf\u544a\u8b66\u9608\u503c\u793a\u610f\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u7528\u5bb9\u91cf\u8d8b\u52bf\u51b3\u5b9a\u6269\u5bb9\uff0c\u800c\u4e0d\u662f\u7b49\u6545\u969c\u53d1\u751f<\/h2>\n<p>\u76d1\u63a7\u8dd1\u8d77\u6765\u540e\uff0c\u771f\u6b63\u6709\u4ef7\u503c\u7684\u662f\u8d8b\u52bf\u5224\u65ad\u3002\u5355\u70b9\u9608\u503c\u53ea\u80fd\u544a\u8bc9\u4f60\u201c\u73b0\u5728\u662f\u5426\u8d8a\u7ebf\u201d\uff0c\u5bb9\u91cf\u8d8b\u52bf\u80fd\u544a\u8bc9\u4f60\u201c\u4ec0\u4e48\u65f6\u5019\u4f1a\u8d8a\u7ebf\u201d\u3002\u4f8b\u5982\u67d0\u7ad9\u70b9\u65e5\u5fd7\u76ee\u5f55\u6bcf\u5929\u589e\u957f 2 GB\uff0c\u78c1\u76d8\u5269\u4f59 40 GB\uff0c\u770b\u8d77\u6765\u6682\u65f6\u5b89\u5168\uff1b\u4f46\u5982\u679c\u5907\u4efd\u4fdd\u7559\u7b56\u7565\u6ca1\u6709\u8c03\u6574\uff0c\u7ea6 20 \u5929\u540e\u5c31\u4f1a\u89e6\u53d1\u78c1\u76d8\u544a\u8b66\u3002\u76f8\u6bd4\u4e34\u65f6\u6e05\u7406\uff0c\u63d0\u524d\u89c4\u5212\u65e5\u5fd7\u8f6e\u8f6c\u3001\u5bf9\u8c61\u5b58\u50a8\u5f52\u6863\u6216\u78c1\u76d8\u6269\u5bb9\u66f4\u7a33\u59a5\u3002<\/p>\n<p>\u6bcf\u5468\u590d\u76d8\u53ef\u4ee5\u6309\u56fa\u5b9a\u987a\u5e8f\u505a\uff1a\u5148\u67e5\u770b 7 \u5929 CPU \u5e73\u5747\u503c\u548c\u5cf0\u503c\uff0c\u5982\u679c\u5de5\u4f5c\u65f6\u95f4\u5e73\u5747\u8d85\u8fc7 60%\u3001\u5cf0\u503c\u591a\u6b21\u8d85\u8fc7 90%\uff0c\u8bb0\u5f55\u5bf9\u5e94\u8bbf\u95ee\u65f6\u6bb5\u548c\u8fdb\u7a0b\uff1b\u518d\u7528\u201c\u5f53\u524d\u5269\u4f59 GB \u00f7 \u6700\u8fd1 7 \u5929\u65e5\u5747\u589e\u957f GB\u201d\u4f30\u7b97\u78c1\u76d8\u5269\u4f59\u5929\u6570\uff1b\u968f\u540e\u68c0\u67e5\u5185\u5b58\u53ef\u7528\u91cf\u548c swap\uff0c\u82e5 swap \u6bcf\u5929\u6301\u7eed\u589e\u52a0\uff0c\u4f18\u5148\u6392\u67e5\u5e94\u7528\u6cc4\u6f0f\u6216\u7f13\u5b58\u914d\u7f6e\uff1b\u6700\u540e\u628a\u7f51\u7edc\u51fa\u5165\u7ad9\u5f02\u5e38\u5c16\u5cf0\u4e0e\u8bbf\u95ee\u65e5\u5fd7\u3001\u722c\u866b\u65e5\u5fd7\u6216\u8425\u9500\u6d3b\u52a8\u65f6\u95f4\u5bf9\u9f50\u3002<\/p>\n<p>\u5982\u679c\u4f60\u540c\u65f6\u7ef4\u62a4\u591a\u4e2a\u7ad9\u70b9\uff0c\u8fd8\u53ef\u4ee5\u628a Web\u3001\u6570\u636e\u5e93\u3001\u7f13\u5b58\u62c6\u6210\u4e0d\u540c\u89d2\u8272\u6807\u7b7e\uff0c\u5206\u522b\u8bbe\u7f6e\u9608\u503c\u3002\u548c\u7f51\u7ad9\u5b89\u5168\u3001\u5907\u4efd\u7b56\u7565\u76f8\u5173\u7684\u6392\u67e5\uff0c\u4e5f\u53ef\u642d\u914d <a href=\"https:\/\/cn.hostease.com\/blog\/server\/\">\u670d\u52a1\u5668\u8fd0\u7ef4\u76f8\u5173\u6587\u7ae0<\/a> \u505a\u5ef6\u4f38\u9605\u8bfb\u3002\u5bb9\u91cf\u590d\u76d8\u4e0d\u662f\u4e3a\u4e86\u8ffd\u6c42\u6bcf\u4e2a\u6307\u6807\u90fd\u5f88\u4f4e\uff0c\u800c\u662f\u4e3a\u4e86\u8ba9\u8d44\u6e90\u4e0e\u4e1a\u52a1\u8282\u594f\u5339\u914d\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/08\/node-exporter-vps-alerting-capacity.webp\" alt=\"\u5bb9\u91cf\u8d8b\u52bf\u590d\u76d8\u793a\u610f\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u5e38\u89c1\u8bef\u533a\uff1a\u76d1\u63a7\u7cfb\u7edf\u672c\u8eab\u4e5f\u9700\u8981\u8fd0\u7ef4<\/h2>\n<p>\u5f88\u591a\u76d1\u63a7\u9879\u76ee\u5931\u8d25\uff0c\u4e0d\u662f\u56e0\u4e3a\u5de5\u5177\u9009\u9519\uff0c\u800c\u662f\u56e0\u4e3a\u544a\u8b66\u6ca1\u4eba\u7ef4\u62a4\u3002\u4e0a\u7ebf\u521d\u671f\u89c4\u5219\u592a\u5bbd\uff0c\u56e2\u961f\u6bcf\u5929\u6536\u5230\u5341\u51e0\u6761\u65e0\u610f\u4e49\u901a\u77e5\uff0c\u51e0\u5468\u540e\u5c31\u4f1a\u5f00\u59cb\u5ffd\u7565\uff1b\u89c4\u5219\u592a\u7a84\uff0c\u53c8\u53ef\u80fd\u9519\u8fc7\u771f\u6b63\u98ce\u9669\u3002\u6bd4\u8f83\u53ef\u884c\u7684\u65b9\u5f0f\u662f\u5148\u8986\u76d6 CPU\u3001\u5185\u5b58\u3001\u78c1\u76d8\u3001\u8282\u70b9\u5b58\u6d3b 4 \u7c7b\u57fa\u7840\u544a\u8b66\uff0c\u518d\u6839\u636e\u5b9e\u9645\u6545\u969c\u8bb0\u5f55\u9010\u6b65\u589e\u52a0\u5e94\u7528\u5c42\u6307\u6807\u3002<\/p>\n<p>Prometheus \u81ea\u8eab\u4e5f\u4f1a\u5360\u7528\u78c1\u76d8\u3002\u5efa\u8bae\u4ece 15 \u79d2\u6216 30 \u79d2\u91c7\u96c6\u95f4\u9694\u8d77\u6b65\uff0c\u5e76\u5b9a\u671f\u67e5\u770b Prometheus \u6570\u636e\u76ee\u5f55\uff1b\u5982\u679c\u76d1\u63a7\u7cfb\u7edf\u5148\u628a\u78c1\u76d8\u5199\u6ee1\uff0c\u4e1a\u52a1\u6392\u969c\u53cd\u800c\u4f1a\u66f4\u88ab\u52a8\u3002\u5b89\u5168\u4fa7\u4e5f\u8981\u505a\u5230\u7aef\u53e3\u8bbf\u95ee\u9650\u5236\u3001\u56fa\u5b9a\u8fd0\u884c\u7528\u6237\u548c\u6700\u5c0f\u6743\u9650\u8fd0\u884c\u3002\u5bf9\u5916\u63d0\u4f9b\u4e1a\u52a1\u7f51\u7ad9\u65f6\uff0cSSL\uff08\u5b89\u5168\u4f20\u8f93\u534f\u8bae\uff09\u3001DNS\uff08\u57df\u540d\u89e3\u6790\u7cfb\u7edf\uff09\u548c\u5e26\u5bbd\uff08\u5355\u4f4d\u65f6\u95f4\u5185\u53ef\u4f20\u8f93\u7684\u6570\u636e\u91cf\uff09\u72b6\u6001\u4e5f\u5e94\u7eb3\u5165\u6574\u4f53\u53ef\u7528\u6027\u89c2\u5bdf\uff0c\u800c\u4e0d\u662f\u53ea\u76ef\u7740 CPU \u66f2\u7ebf\u3002<\/p>\n<h2>\u603b\u7ed3\uff1a\u5148\u628a\u57fa\u7840\u6307\u6807\u505a\u51c6\uff0c\u518d\u9010\u6b65\u6269\u5c55\u5e94\u7528\u76d1\u63a7<\/h2>\n<p>Prometheus Node Exporter \u76d1\u63a7 VPS\uff08\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668\uff09\u7684\u6838\u5fc3\uff0c\u4e0d\u662f\u4e00\u6b21\u6027\u642d\u51fa\u590d\u6742\u5e73\u53f0\uff0c\u800c\u662f\u5148\u628a\u57fa\u7840\u6307\u6807\u91c7\u96c6\u51c6\u786e\u3001\u544a\u8b66\u9608\u503c\u53ef\u5904\u7406\u3001\u5bb9\u91cf\u8d8b\u52bf\u53ef\u590d\u76d8\u3002\u5efa\u8bae\u4f60\u4ece\u4e00\u53f0\u670d\u52a1\u5668\u5f00\u59cb\uff1a\u786e\u8ba4 <code>up<\/code> \u72b6\u6001\u6b63\u5e38\uff0c\u8bbe\u7f6e\u78c1\u76d8 80%\/90% \u5206\u7ea7\u544a\u8b66\uff0c\u89c2\u5bdf 7 \u5929 CPU\u3001\u5185\u5b58\u548c\u7f51\u7edc\u66f2\u7ebf\uff0c\u518d\u628a\u540c\u6837\u65b9\u6cd5\u590d\u5236\u5230\u66f4\u591a\u8282\u70b9\u3002<\/p>\n<p>\u5982\u679c\u4f60\u9700\u8981\u4e3a\u65b0\u7f51\u7ad9\u6216\u589e\u957f\u4e2d\u7684\u4e1a\u52a1\u9009\u62e9\u670d\u52a1\u5668\uff0c\u53ef\u4ee5\u8003\u8651\u5148\u6839\u636e\u76d1\u63a7\u7ed3\u679c\u4f30\u7b97\u8d44\u6e90\u9700\u6c42\uff0c\u518d\u51b3\u5b9a\u662f\u5426\u5347\u7ea7 VPS\uff08\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668\uff09\u89c4\u683c\u3001\u8fc1\u79fb\u5230 <a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">\u72ec\u7acb\u670d\u52a1\u5668<\/a>\uff0c\u6216\u7ee7\u7eed\u4f18\u5316\u73b0\u6709\u5e94\u7528\u3002Hostease 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Prometheus Node Exporter \u76d1\u63a7 VPS 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