{"id":32189,"date":"2025-03-04T09:39:43","date_gmt":"2025-03-04T01:39:43","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=32189"},"modified":"2025-03-04T09:39:43","modified_gmt":"2025-03-04T01:39:43","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8prometheus%e4%b8%ad%e5%ae%9e%e7%8e%b0%e8%87%aa%e5%ae%9a%e4%b9%89%e5%af%bc%e5%87%ba%e5%99%a8%ef%bc%88exporter%ef%bc%89%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/32189.html","title":{"rendered":"\u5982\u4f55\u5728Prometheus\u4e2d\u5b9e\u73b0\u81ea\u5b9a\u4e49\u5bfc\u51fa\u5668\uff08Exporter\uff09\uff1f"},"content":{"rendered":"<p style=\"text-align: center;\">\n<p><img decoding=\"async\" src=\"https:\/\/pic.zadbj010.com\/2025\/939301c699601a6.jpg\" alt=\"\u5982\u4f55\u5728Prometheus\u4e2d\u5b9e\u73b0\u81ea\u5b9a\u4e49\u5bfc\u51fa\u5668\uff08Exporter\uff09\uff1f\" ><\/p>\n<\/p>\n<p>\u5728\u6570\u5b57\u5316\u8f6c\u578b\u52a0\u901f\u7684\u4eca\u5929\uff0c\u7cfb\u7edf\u76d1\u63a7\u5df2\u6210\u4e3a\u4fdd\u969c\u4e1a\u52a1\u8fde\u7eed\u6027\u7684\u6838\u5fc3\u73af\u8282\u3002\u4f5c\u4e3a\u4e91\u539f\u751f\u76d1\u63a7\u9886\u57df\u7684\u6807\u6746\u5de5\u5177\uff0c<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">Prometheus<\/a>\u51ed\u501f\u5176\u591a\u7ef4\u6570\u636e\u6a21\u578b\u548c\u7075\u6d3b\u7684\u67e5\u8be2\u8bed\u8a00\uff0c\u5728Kubernetes\u751f\u6001\u4e2d\u5360\u636e\u91cd\u8981\u5730\u4f4d\u3002\u4f46\u5f53\u5f00\u53d1\u8005\u9762\u5bf9\u7269\u8054\u7f51\u8bbe\u5907\u3001\u9057\u7559\u7cfb\u7edf\u6216\u65b0\u578b\u4e2d\u95f4\u4ef6\u65f6\uff0c\u5e38\u4f1a\u9047\u5230\u4e00\u4e2a\u73b0\u5b9e\u56f0\u5883\uff1a<strong>\u73b0\u6709\u793e\u533a\u63d0\u4f9b\u7684Exporter\u65e0\u6cd5\u6ee1\u8db3\u7279\u5b9a\u76d1\u63a7\u9700\u6c42<\/strong>\u3002\u6b64\u65f6\uff0c\u638c\u63e1\u81ea\u5b9a\u4e49\u5bfc\u51fa\u5668\u7684\u6784\u5efa\u80fd\u529b\uff0c\u5c31\u5982\u540c\u83b7\u5f97\u4e86\u4e00\u628a\u6253\u5f00\u5b9a\u5236\u5316\u76d1\u63a7\u5927\u95e8\u7684\u91d1\u94a5\u5319\u3002<\/p>\n<h3 id=\"\u4e00-\u4e3a\u4ec0\u4e48\u9700\u8981\u5b9a\u5236exporter\">\u4e00\u3001\u4e3a\u4ec0\u4e48\u9700\u8981\u5b9a\u5236Exporter<\/h3>\n<p><a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">Prometheus<\/a>\u5b98\u65b9\u53ca\u793e\u533a\u7ef4\u62a4\u7684200+\u4e2a\u5bfc\u51fa\u5668\uff0c\u8986\u76d6\u4e86\u4ece\u6570\u636e\u5e93\u5230\u6d88\u606f\u961f\u5217\u7684\u5e38\u89c1\u7ec4\u4ef6\u3002\u4f46\u5728\u5b9e\u9645\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u4f01\u4e1a\u5e38\u5e38\u9700\u8981\u76d1\u63a7\u4ee5\u4e0b\u4e09\u7c7b\u7279\u6b8a\u573a\u666f\uff1a<\/p>\n<ul>\n<li><strong>\u79c1\u6709\u534f\u8bae\u670d\u52a1<\/strong>\uff1a\u91c7\u7528\u5b9a\u5236\u4e8c\u8fdb\u5236\u534f\u8bae\u7684\u5185\u90e8\u7cfb\u7edf\n<\/li>\n<li><strong>\u6df7\u5408\u4e91\u67b6\u6784<\/strong>\uff1a\u8de8\u591a\u4e2a\u4e91\u5e73\u53f0\u7684\u590d\u5408\u578b\u5e94\u7528\n<\/li>\n<li><strong>\u4e1a\u52a1\u7ea7\u6307\u6807<\/strong>\uff1a\u8ba2\u5355\u5904\u7406\u901f\u7387\u3001\u7528\u6237\u884c\u4e3a\u5206\u6790\u7b49\u5e94\u7528\u5c42\u6570\u636e\n<\/li>\n<\/ul>\n<p>\u4ee5\u67d0\u7535\u5546\u5e73\u53f0\u4e3a\u4f8b\uff0c\u5176\u57fa\u4e8egRPC\u6784\u5efa\u7684\u5206\u5e03\u5f0f\u8d2d\u7269\u8f66\u7cfb\u7edf\uff0c\u9700\u8981\u5b9e\u65f6\u8ffd\u8e2a\u6bcf\u4e2a\u5206\u7247\u7684<strong>\u5185\u5b58\u4f7f\u7528\u6a21\u5f0f<\/strong>\u548c<strong>\u8bf7\u6c42\u6392\u961f\u65f6\u95f4<\/strong>\uff0c\u8fd9\u7c7b\u7ec6\u7c92\u5ea6\u6307\u6807\u663e\u7136\u65e0\u6cd5\u901a\u8fc7\u901a\u7528Exporter\u83b7\u53d6\u3002<\/p>\n<h3 id=\"\u4e8c-\u6784\u5efaexporter\u7684\u56db\u5927\u652f\u67f1\">\u4e8c\u3001\u6784\u5efaExporter\u7684\u56db\u5927\u652f\u67f1<\/h3>\n<h4 id=\"1-\u9009\u62e9\u5f00\u53d1\u8bed\u8a00\">1. \u9009\u62e9\u5f00\u53d1\u8bed\u8a00<\/h4>\n<p>\u867d\u7136Prometheus\u5ba2\u6237\u7aef\u5e93\u652f\u6301Go\u3001Python\u3001Java\u7b4911\u79cd\u8bed\u8a00\uff0c\u4f46<strong>Go\u8bed\u8a00<\/strong>\u51ed\u501f\u539f\u751f\u96c6\u6210\u548c\u9ad8\u6548\u5e76\u53d1\u6a21\u578b\uff0c\u6210\u4e3aExporter\u5f00\u53d1\u7684\u9996\u9009\u3002\u7edf\u8ba1\u663e\u793a\uff0c\u8d85\u8fc768%\u7684CNCF\u8ba4\u8bc1Exporter\u91c7\u7528Go\u5b9e\u73b0\u3002<\/p>\n<p>Python\u5219\u56e0\u5176\u4e30\u5bcc\u7684\u751f\u6001\u5e93\uff0c\u5728\u5feb\u901f\u539f\u578b\u5f00\u53d1\u4e2d\u5360\u636e\u4f18\u52bf\u3002\u4f8b\u5982\uff0c\u4f7f\u7528<code>prometheus-client<\/code>\u5e93\u53ef\u572820\u884c\u4ee3\u7801\u5185\u521b\u5efa\u57fa\u7840\u5bfc\u51fa\u5668\uff1a<\/p>\n<pre><code class=\"language-python\">from prometheus_client import start_http_server, Gauge  \r\n  \r\napi_latency = Gauge('api_response_ms', 'API\u54cd\u5e94\u5ef6\u8fdf')  \r\n  \r\ndef collect_metrics():  \r\nwhile True:  \r\nlatency = measure_api()  \r\napi_latency.set(latency)  \r\ntime.sleep(15)  \r\n  \r\nstart_http_server(8000)  \r\n<\/code><\/pre>\n<h4 id=\"2-\u6307\u6807\u8bbe\u8ba1\u539f\u5219\">2. \u6307\u6807\u8bbe\u8ba1\u539f\u5219<\/h4>\n<p>\u4f18\u8d28\u6307\u6807\u5e94\u9075\u5faa<strong>USE\u6cd5\u5219<\/strong>\uff08Utilization\u3001Saturation\u3001Errors\uff09\u548c<strong>RED\u65b9\u6cd5<\/strong>\uff08Rate\u3001Errors\u3001Duration\uff09\u3002\u5bf9\u4e8e\u6d88\u606f\u961f\u5217\u7cfb\u7edf\uff0c\u5efa\u8bae\u5305\u542b\uff1a<\/p>\n<ul>\n<li><code>queue_messages_total<\/code>\uff08Counter\u7c7b\u578b\uff09\n<\/li>\n<li><code>consumer_lag_seconds<\/code>\uff08Gauge\u7c7b\u578b\uff09\n<\/li>\n<li><code>process_duration_seconds<\/code>\uff08Histogram\u7c7b\u578b\uff09\n<\/li>\n<\/ul>\n<p><strong>\u5173\u952e\u70b9\u5728\u4e8e\u5c06\u539f\u59cb\u6570\u636e\u8f6c\u5316\u4e3a\u5177\u6709\u4e1a\u52a1\u8bed\u4e49\u7684\u6307\u6807<\/strong>\u3002\u6bd4\u5982\uff0c\u6570\u636e\u5e93\u8fde\u63a5\u6570\u5e94\u8f6c\u6362\u4e3a<code>db_connections_active<\/code>\uff0c\u800c\u975e\u76f4\u63a5\u66b4\u9732<code>SELECT COUNT(*) FROM pg_stat_activity<\/code>\u3002<\/p>\n<h4 id=\"3-\u6027\u80fd\u4f18\u5316\u7b56\u7565\">3. \u6027\u80fd\u4f18\u5316\u7b56\u7565<\/h4>\n<ul>\n<li><strong>\u6279\u5904\u7406\u91c7\u96c6<\/strong>\uff1a\u901a\u8fc7<code>Registry<\/code>\u5bf9\u8c61\u6279\u91cf\u6ce8\u518c\u6307\u6807\uff0c\u51cf\u5c11\u9501\u7ade\u4e89\n<\/li>\n<li><strong>\u5185\u5b58\u590d\u7528<\/strong>\uff1a\u5bf9\u4e8e\u9ad8\u9891\u66f4\u65b0\u7684Counter\u6307\u6807\uff0c\u91c7\u7528\u539f\u5b50\u64cd\u4f5c\u66ff\u4ee3\u4e92\u65a5\u9501\n<\/li>\n<li><strong>\u8fde\u63a5\u6c60\u7ba1\u7406<\/strong>\uff1a\u914d\u7f6e\u5408\u7406\u7684HTTP keep-alive\u65f6\u95f4\uff0c\u964d\u4f4eTCP\u63e1\u624b\u5f00\u9500\n<\/li>\n<\/ul>\n<p>\u67d0\u91d1\u878d\u7cfb\u7edf\u5728\u4f18\u5316Exporter\u540e\uff0c\u5c06\u91c7\u96c6\u5ef6\u8fdf\u4ece120ms\u964d\u81f315ms\uff0c\u8d44\u6e90\u6d88\u8017\u964d\u4f4e40%\u3002<\/p>\n<h4 id=\"4-\u5b89\u5168\u52a0\u56fa\u65b9\u6848\">4. \u5b89\u5168\u52a0\u56fa\u65b9\u6848<\/h4>\n<ul>\n<li><strong>TLS\u7ec8\u6b62<\/strong>\uff1a\u4f7f\u7528<code>nginx<\/code>\u53cd\u5411\u4ee3\u7406\u5b9e\u73b0HTTPS\u52a0\u5bc6\n<\/li>\n<li><strong>\u8bbf\u95ee\u63a7\u5236<\/strong>\uff1a\u901a\u8fc7<code>basic_auth<\/code>\u6a21\u5757\u9650\u5236IP\u767d\u540d\u5355\n<\/li>\n<li><strong>\u6307\u6807\u8fc7\u6ee4<\/strong>\uff1a\u5229\u7528<code>honor_labels<\/code>\u914d\u7f6e\u9632\u6b62\u6807\u7b7e\u6ce8\u5165\u653b\u51fb\n<\/li>\n<\/ul>\n<h3 id=\"\u4e09-\u5de5\u4e1a\u7ea7exporter\u5f00\u53d1\u6d41\u7a0b\">\u4e09\u3001\u5de5\u4e1a\u7ea7Exporter\u5f00\u53d1\u6d41\u7a0b<\/h3>\n<h4 id=\"\u6b65\u9aa41-\u73af\u5883\u914d\u7f6e\">\u6b65\u9aa41\uff1a\u73af\u5883\u914d\u7f6e<\/h4>\n<p>\u5b89\u88c5Go 1.19+\u5e76\u914d\u7f6e\u6a21\u5757\u4ee3\u7406\uff1a<\/p>\n<pre><code class=\"language-bash\">go env -w GOPROXY=https:\/\/goproxy.cn,direct  \r\n<\/code><\/pre>\n<h4 id=\"\u6b65\u9aa42-\u521b\u5efa\u6307\u6807\u6ce8\u518c\u8868\">\u6b65\u9aa42\uff1a\u521b\u5efa\u6307\u6807\u6ce8\u518c\u8868<\/h4>\n<pre><code class=\"language-go\">var (  \r\ncpuTemp = prometheus.NewGauge(prometheus.GaugeOpts{  \r\nName: &quot;sensor_cpu_temperature&quot;,  \r\nHelp: &quot;\u5f53\u524dCPU\u6e29\u5ea6\uff08\u6444\u6c0f\u5ea6\uff09&quot;,  \r\n})  \r\n)  \r\n  \r\nfunc init() {  \r\nprometheus.MustRegister(cpuTemp)  \r\n}  \r\n<\/code><\/pre>\n<h4 id=\"\u6b65\u9aa43-\u5b9e\u73b0\u91c7\u96c6\u903b\u8f91\">\u6b65\u9aa43\uff1a\u5b9e\u73b0\u91c7\u96c6\u903b\u8f91<\/h4>\n<pre><code class=\"language-go\">func collect() {  \r\nfor {  \r\ntemp := readCPUTemp()  \r\ncpuTemp.Set(temp)  \r\ntime.Sleep(30 * time.Second)  \r\n}  \r\n}  \r\n<\/code><\/pre>\n<h4 id=\"\u6b65\u9aa44-\u66b4\u9732http\u7aef\u70b9\">\u6b65\u9aa44\uff1a\u66b4\u9732HTTP\u7aef\u70b9<\/h4>\n<pre><code class=\"language-go\">http.Handle(&quot;\/metrics&quot;, promhttp.Handler())  \r\nhttp.ListenAndServe(&quot;:8080&quot;, nil)  \r\n<\/code><\/pre>\n<h3 id=\"\u56db-\u5b9e\u6218-\u667a\u80fd\u5bb6\u5c45\u7f51\u5173\u76d1\u63a7\">\u56db\u3001\u5b9e\u6218\uff1a\u667a\u80fd\u5bb6\u5c45\u7f51\u5173\u76d1\u63a7<\/h3>\n<p>\u67d0\u667a\u80fd\u5bb6\u5c45\u5382\u5546\u9700\u8981\u76d1\u63a75000\u4e2a\u8fb9\u7f18\u7f51\u5173\u8bbe\u5907\uff0c\u6bcf\u4e2a\u7f51\u5173\u5305\u542b\uff1a<\/p>\n<ul>\n<li>\u6e29\u5ea6\u4f20\u611f\u5668\u8bfb\u6570\n<\/li>\n<li>Zigbee\u4fe1\u53f7\u5f3a\u5ea6\n<\/li>\n<li>\u56fa\u4ef6\u66f4\u65b0\u72b6\u6001\n<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u5f00\u53d1\u5b9a\u5236Exporter\uff0c\u5b9e\u73b0\u4ee5\u4e0b\u589e\u5f3a\u529f\u80fd\uff1a<\/p>\n<ol>\n<li><strong>\u534f\u8bae\u8f6c\u6362\u5c42<\/strong>\uff1a\u5c06CoAP\u534f\u8bae\u6570\u636e\u8f6c\u4e3aPrometheus\u683c\u5f0f\n<\/li>\n<li><strong>\u6307\u6807\u7f13\u5b58\u673a\u5236<\/strong>\uff1a\u5728\u7f51\u7edc\u4e2d\u65ad\u65f6\u7ef4\u6301\u6700\u8fd15\u5206\u949f\u6570\u636e\n<\/li>\n<li><strong>\u52a8\u6001\u6807\u7b7e\u6ce8\u5165<\/strong>\uff1a\u6839\u636e\u5730\u7406\u4f4d\u7f6e\u81ea\u52a8\u6dfb\u52a0<code>region<\/code>\u6807\u7b7e\n<\/li>\n<\/ol>\n<p>\u6700\u7ec8\u5b9e\u73b0\u7684\u6307\u6807\u6837\u4f8b\uff1a<\/p>\n<pre><code>gateway_temperature{device=&quot;LW-0452&quot;, region=&quot;CN-EAST&quot;} 28.5  \r\ngateway_signal_dbm{protocol=&quot;Zigbee3.0&quot;} -67  \r\n<\/code><\/pre>\n<h3 id=\"\u4e94-\u8c03\u8bd5\u4e0e\u9a8c\u8bc1\u6280\u5de7\">\u4e94\u3001\u8c03\u8bd5\u4e0e\u9a8c\u8bc1\u6280\u5de7<\/h3>\n<ol>\n<li><strong>\u5355\u5143\u6d4b\u8bd5<\/strong>\uff1a\u4f7f\u7528<code>testutil<\/code>\u5305\u9a8c\u8bc1\u6307\u6807\u503c\n<\/li>\n<\/ol>\n<pre><code class=\"language-go\">if err := testutil.CollectAndCompare(cpuTemp, strings.NewReader(...)); err != nil {  \r\nt.Fatal(err)  \r\n}  \r\n<\/code><\/pre>\n<ol>\n<li>\n<p><strong>\u96c6\u6210\u6d4b\u8bd5<\/strong>\uff1a\u901a\u8fc7<code>docker-compose<\/code>\u642d\u5efaPrometheus+Alertmanager\u6d4b\u8bd5\u73af\u5883<\/p>\n<\/li>\n<li>\n<p><strong>\u6027\u80fd\u5256\u6790<\/strong>\uff1a<\/p>\n<\/li>\n<\/ol>\n<pre><code class=\"language-bash\">go tool pprof -http=:8081 http:\/\/localhost:6060\/debug\/pprof\/profile  \r\n<\/code><\/pre>\n<ol>\n<li><strong>\u7070\u5ea6\u53d1\u5e03<\/strong>\uff1a\u91c7\u7528Canary\u90e8\u7f72\u7b56\u7565\uff0c\u5148\u5bf95%\u8282\u70b9\u542f\u7528\u65b0Exporter\n<\/li>\n<\/ol>\n<p>\u5728\u5b8c\u6210\u81ea\u5b9a\u4e49Exporter\u5f00\u53d1\u540e\uff0c\u5efa\u8bae\u5c06\u5176\u63d0\u4ea4\u81f3<a href=\"https:\/\/prometheus.io\/docs\/instrumenting\/exporters\/\" target=\"_blank\">Prometheus\u5b98\u65b9\u5217\u8868<\/a>\uff0c\u4e0e\u793e\u533a\u5171\u4eab\u6210\u679c\u3002\u901a\u8fc7\u6301\u7eed\u6536\u96c6\u7528\u6237\u53cd\u9988\uff0c\u9010\u6b65\u5b8c\u5584\u6307\u6807\u7ef4\u5ea6\u7684\u53ef\u914d\u7f6e\u6027\uff0c\u6700\u7ec8\u6253\u9020\u51fa\u7b26\u5408\u4e91\u539f\u751f\u6807\u51c6\u7684\u76d1\u63a7\u7ec4\u4ef6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u6570\u5b57\u5316\u8f6c\u578b\u52a0\u901f\u7684\u4eca\u5929\uff0c\u7cfb\u7edf\u76d1\u63a7\u5df2\u6210\u4e3a\u4fdd\u969c\u4e1a\u52a1\u8fde\u7eed\u6027\u7684\u6838\u5fc3\u73af\u8282\u3002\u4f5c\u4e3a\u4e91\u539f\u751f\u76d1\u63a7\u9886\u57df\u7684\u6807\u6746\u5de5\u5177\uff0cPrometheus\u51ed\u501f\u5176\u591a\u7ef4\u6570\u636e\u6a21\u578b\u548c\u7075\u6d3b\u7684\u67e5\u8be2\u8bed\u8a00\uff0c\u5728Kubernetes\u751f\u6001\u4e2d\u5360\u636e\u91cd\u8981\u5730\u4f4d\u3002\u4f46\u5f53\u5f00\u53d1\u8005\u9762\u5bf9\u7269\u8054\u7f51\u8bbe\u5907\u3001\u9057\u7559\u7cfb\u7edf\u6216\u65b0\u578b\u4e2d\u95f4\u4ef6\u65f6\uff0c\u5e38\u4f1a\u9047\u5230\u4e00\u4e2a\u73b0\u5b9e\u56f0\u5883\uff1a\u73b0\u6709\u793e\u533a\u63d0\u4f9b\u7684Exporter\u65e0\u6cd5\u6ee1\u8db3\u7279\u5b9a\u76d1\u63a7\u9700\u6c42\u3002\u6b64\u65f6\uff0c\u638c\u63e1\u81ea\u5b9a\u4e49\u5bfc\u51fa\u5668\u7684\u6784\u5efa\u80fd\u529b\uff0c\u5c31\u5982\u540c\u83b7\u5f97\u4e86\u4e00\u628a\u6253\u5f00\u5b9a\u5236\u5316\u76d1\u63a7\u5927\u95e8\u7684\u91d1\u94a5\u5319\u3002 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Python\u5219\u56e0\u5176\u4e30\u5bcc\u7684\u751f\u6001\u5e93\uff0c\u5728\u5feb\u901f\u539f\u578b\u5f00\u53d1\u4e2d\u5360\u636e\u4f18\u52bf\u3002\u4f8b\u5982\uff0c\u4f7f\u7528prometheus-client\u5e93\u53ef\u572820\u884c\u4ee3\u7801\u5185\u521b\u5efa\u57fa\u7840\u5bfc\u51fa\u5668\uff1a from prometheus_client import start_http_server, Gauge api_latency = Gauge(&#8216;api_response_ms&#8217;, &#8216;API\u54cd\u5e94\u5ef6\u8fdf&#8217;) def collect_metrics(): while True: latency = measure_api() api_latency.set(latency) time.sleep(15) start_http_server(8000) 2. \u6307\u6807\u8bbe\u8ba1\u539f\u5219 \u4f18\u8d28\u6307\u6807\u5e94\u9075\u5faaUSE\u6cd5\u5219\uff08Utilization\u3001Saturation\u3001Errors\uff09\u548cRED\u65b9\u6cd5\uff08Rate\u3001Errors\u3001Duration\uff09\u3002\u5bf9\u4e8e\u6d88\u606f\u961f\u5217\u7cfb\u7edf\uff0c\u5efa\u8bae\u5305\u542b\uff1a queue_messages_total\uff08Counter\u7c7b\u578b\uff09 consumer_lag_seconds\uff08Gauge\u7c7b\u578b\uff09 process_duration_seconds\uff08Histogram\u7c7b\u578b\uff09 \u5173\u952e\u70b9\u5728\u4e8e\u5c06\u539f\u59cb\u6570\u636e\u8f6c\u5316\u4e3a\u5177\u6709\u4e1a\u52a1\u8bed\u4e49\u7684\u6307\u6807\u3002\u6bd4\u5982\uff0c\u6570\u636e\u5e93\u8fde\u63a5\u6570\u5e94\u8f6c\u6362\u4e3adb_connections_active\uff0c\u800c\u975e\u76f4\u63a5\u66b4\u9732SELECT COUNT(*) FROM pg_stat_activity\u3002 3. \u6027\u80fd\u4f18\u5316\u7b56\u7565 \u6279\u5904\u7406\u91c7\u96c6\uff1a\u901a\u8fc7Registry\u5bf9\u8c61\u6279\u91cf\u6ce8\u518c\u6307\u6807\uff0c\u51cf\u5c11\u9501\u7ade\u4e89 \u5185\u5b58\u590d\u7528\uff1a\u5bf9\u4e8e\u9ad8\u9891\u66f4\u65b0\u7684Counter\u6307\u6807\uff0c\u91c7\u7528\u539f\u5b50\u64cd\u4f5c\u66ff\u4ee3\u4e92\u65a5\u9501 \u8fde\u63a5\u6c60\u7ba1\u7406\uff1a\u914d\u7f6e\u5408\u7406\u7684HTTP keep-alive\u65f6\u95f4\uff0c\u964d\u4f4eTCP\u63e1\u624b\u5f00\u9500 \u67d0\u91d1\u878d\u7cfb\u7edf\u5728\u4f18\u5316Exporter\u540e\uff0c\u5c06\u91c7\u96c6\u5ef6\u8fdf\u4ece120ms\u964d\u81f315ms\uff0c\u8d44\u6e90\u6d88\u8017\u964d\u4f4e40%\u3002 4. \u5b89\u5168\u52a0\u56fa\u65b9\u6848 TLS\u7ec8\u6b62\uff1a\u4f7f\u7528nginx\u53cd\u5411\u4ee3\u7406\u5b9e\u73b0HTTPS\u52a0\u5bc6 \u8bbf\u95ee\u63a7\u5236\uff1a\u901a\u8fc7basic_auth\u6a21\u5757\u9650\u5236IP\u767d\u540d\u5355 \u6307\u6807\u8fc7\u6ee4\uff1a\u5229\u7528honor_labels\u914d\u7f6e\u9632\u6b62\u6807\u7b7e\u6ce8\u5165\u653b\u51fb \u4e09\u3001\u5de5\u4e1a\u7ea7Exporter\u5f00\u53d1\u6d41\u7a0b \u6b65\u9aa41\uff1a\u73af\u5883\u914d\u7f6e [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":32190,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-32189","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-product-news"],"_links":{"self":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts\/32189","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/comments?post=32189"}],"version-history":[{"count":1,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts\/32189\/revisions"}],"predecessor-version":[{"id":32191,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts\/32189\/revisions\/32191"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media\/32190"}],"wp:attachment":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media?parent=32189"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/categories?post=32189"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/tags?post=32189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}