{"id":1736,"date":"2025-12-29T15:13:07","date_gmt":"2025-12-29T07:13:07","guid":{"rendered":"https:\/\/eve2333.top\/?p=1736"},"modified":"2025-12-29T15:13:07","modified_gmt":"2025-12-29T07:13:07","slug":"%e5%8a%a8%e6%80%81%e7%ba%bf%e7%a8%8b%e6%b1%a0onethread%e7%b3%bb%e7%bb%9f-%e7%ac%ac%e5%8d%81%e4%ba%8c%e9%83%a8%e5%88%86-%e6%b7%b1%e5%85%a5%e5%89%96%e6%9e%90metrics%e7%9b%91%e6%8e%a7%e4%b8%ad","status":"publish","type":"post","link":"https:\/\/eve2333.top\/?p=1736","title":{"rendered":"\u52a8\u6001\u7ebf\u7a0b\u6c60oneThread\u7cfb\u7edf \u2014 \u7b2c\u5341\u4e8c\u90e8\u5206 \u6df1\u5165\u5256\u6790Metrics\u76d1\u63a7\u4e2d\u7684\u90a3\u4e9b\u5751"},"content":{"rendered":"\n<p>\u8fd9\u7bc7\u6587\u7ae0\u6df1\u5165\u63a2\u8ba8\u4e86 Java \u76d1\u63a7\u4f53\u7cfb\u4e2d\uff08\u7279\u522b\u662f\u57fa\u4e8e Micrometer \u548c Spring Boot Actuator\uff09\u5173\u4e8e <strong>Metric Gauge\uff08\u4eea\u8868\u76d8\uff09\u6ce8\u518c\u673a\u5236<\/strong>\u7684\u4e00\u4e2a\u7ecf\u5178\u8bef\u533a\u4e0e\u4f18\u5316\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u8ba9\u4f60\u5f7b\u5e95\u7406\u89e3\uff0c\u6211\u5c06\u5185\u5bb9\u62c6\u89e3\u4e3a\u4e09\u4e2a\u90e8\u5206\u8fdb\u884c\u8be6\u7ec6\u8bb2\u89e3\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u539f\u7406\u7bc7\uff1aMicrometer \u7684\u6ce8\u518c\u673a\u5236\u4e0e\u201c\u5f15\u7528\u9677\u9631\u201d<\/strong><\/li>\n\n\n\n<li><strong>\u5206\u6790\u7bc7\uff1a\u4e3a\u4ec0\u4e48\u65e7\u4ee3\u7801\u201c\u770b\u8d77\u6765\u9519\u201d\u5374\u80fd\u8dd1\uff1f\u53ca\u5176\u5f0a\u7aef<\/strong><\/li>\n\n\n\n<li><strong>\u91cd\u6784\u7bc7\uff1a\u5982\u4f55\u4f18\u96c5\u5730\u5b9e\u73b0\u9ad8\u6027\u80fd\u3001\u53ef\u89c6\u5316\u7684\u6307\u6807\u76d1\u63a7<\/strong><\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"900\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766917562-image-1024x900.png\" alt=\"\" class=\"wp-image-1739\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766917562-image-1024x900.png 1024w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766917562-image-300x264.png 300w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766917562-image-768x675.png 768w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766917562-image.png 1307w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c\u4e00\u90e8\u5206\uff1a\u539f\u7406\u7bc7\u2014\u2014Micrometer \u7684\u6ce8\u518c\u673a\u5236\u4e0e\u201c\u5f15\u7528\u9677\u9631\u201d<\/h3>\n\n\n\n<p>\u8981\u7406\u89e3\u6587\u7ae0\u7684\u6838\u5fc3\u77db\u76fe\uff0c\u9996\u5148\u5fc5\u987b\u641e\u6e05\u695a <code>Metrics.gauge<\/code> \u5e95\u5c42\u662f\u600e\u4e48\u5de5\u4f5c\u7684\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1. Gauge \u7684\u672c\u8d28\uff1a\u6301\u6709\u5bf9\u8c61\u5f15\u7528<\/h4>\n\n\n\n<p>\u4e0d\u540c\u4e8e Counter\uff08\u8ba1\u6570\u5668\uff09\u662f\u6bcf\u6b21\u8c03\u7528 <code>increment()<\/code> \u5c31\u52a0 1\uff0cGauge\uff08\u4eea\u8868\u76d8\uff09\u901a\u5e38\u7528\u4e8e\u53cd\u6620<strong>\u77ac\u65f6\u72b6\u6001<\/strong>\uff08\u6bd4\u5982\u5f53\u524d\u7ebf\u7a0b\u6c60\u6d3b\u8dc3\u7ebf\u7a0b\u6570\u3001\u5185\u5b58\u5360\u7528\uff09\u3002<\/p>\n\n\n\n<p>\u5f53\u4f60\u8c03\u7528\u4ee5\u4e0b\u4ee3\u7801\u65f6\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Metrics.gauge(\"core.size\", tags, myObj, MyObj::getValue);<\/code><\/pre>\n\n\n\n<p>Micrometer \u505a\u4e86\u4e24\u4ef6\u4e8b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6301\u6709\u5f15\u7528<\/strong>\uff1a\u5b83\u4e0d\u4f1a\u628a <code>getValue()<\/code> \u7684\u7ed3\u679c\u5b58\u4e0b\u6765\uff0c\u800c\u662f<strong>\u6301\u6709\u4e86 <code>myObj<\/code> \u8fd9\u4e2a\u5bf9\u8c61\u7684\u5185\u5b58\u5f15\u7528\uff08Reference\uff09<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u88ab\u52a8\u62c9\u53d6<\/strong>\uff1a\u53ea\u6709\u5f53 Prometheus \u6765\u201c\u522e\u53d6\u201d\uff08Scrape\uff09\u6570\u636e\u65f6\uff0cMicrometer \u624d\u4f1a\u901a\u8fc7\u8fd9\u4e2a\u5f15\u7528\uff0c\u53bb\u8c03\u7528 <code>myObj.getValue()<\/code> \u83b7\u53d6\u5f53\u524d\u503c\u3002<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u201c\u7b2c\u4e00\u6b21\u6ce8\u518c\u751f\u6548\u201d\u539f\u5219\uff08First Wins\uff09<\/h4>\n\n\n\n<p>\u8fd9\u662f\u6587\u7ae0\u4e2d\u6700\u5927\u7684\u77e5\u8bc6\u70b9\u3002Micrometer \u5185\u90e8\u7ef4\u62a4\u4e86\u4e00\u4e2a <code>MeterRegistry<\/code>\uff08\u6ce8\u518c\u8868\uff09\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u573a\u666f A\uff08\u9996\u6b21\u6ce8\u518c\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u4f60\u4f20\u5165 <code>obj1<\/code>\u3002<\/li>\n\n\n\n<li>\u6ce8\u518c\u8868\u91cc\u6ca1\u6709\u8fd9\u4e2a\u540d\u5b57\u7684\u6307\u6807\u3002<\/li>\n\n\n\n<li>Micrometer \u8bb0\u5f55\uff1a<code>\"core.size\" -> \u7ed1\u5b9a obj1<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u573a\u666f B\uff08\u518d\u6b21\u6ce8\u518c\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u4f60\u4f20\u5165 <code>obj2<\/code>\uff08\u4e00\u4e2a\u65b0\u7684\u5bf9\u8c61\uff09\uff0c\u540d\u5b57\u8fd8\u662f <code>\"core.size\"<\/code>\uff0c\u6807\u7b7e\u4e5f\u4e00\u6837\u3002<\/li>\n\n\n\n<li>Micrometer \u68c0\u67e5\u6ce8\u518c\u8868\uff1a\u53d1\u73b0 <code>\"core.size\"<\/code> \u5df2\u7ecf\u5b58\u5728\u4e86\u3002<\/li>\n\n\n\n<li><strong>\u52a8\u4f5c<\/strong>\uff1a<strong>\u76f4\u63a5\u5ffd\u7565 <code>obj2<\/code>\uff0c\u76f4\u63a5\u8fd4\u56de\u5df2\u5b58\u5728\u7684 Gauge\uff08\u5b83\u4f9d\u7136\u7ed1\u5b9a\u7740 <code>obj1<\/code>\uff09\u3002<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>\u6362\u53e5\u8bdd\u8bf4\uff0c<strong>\u7b2c\u4e00\u6b21\u4f20\u5165\u7684<code>runtimeInfo1<\/code>\u88ab\u7ed1\u5b9a\u540e\uff0c\u4e4b\u540e\u65e0\u8bba\u4f60\u4f20\u5165<code>runtimeInfo2\u30013\u30014<\/code>\uff0cMicrometer\u90fd\u4f1a\u5ffd\u7565\uff0c\u53ea\u4f1a\u7ee7\u7eed\u8bfb\u53d6<code>runtimeInfo1<\/code>\u7684\u5b57\u6bb5\u503c<\/strong> \u3002\u5728\u4e4b\u524d\u7684\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u63d0\u5230\u8fc7\u5982\u679c\u6ca1\u6709\u7f13\u5b58\u5c42\u4f1a\u51fa\u73b0\u83b7\u53d6\u503c NaN \u7684\u60c5\u51b5\uff0c\u8fd9\u6b63\u597d\u5bf9\u5e94\u4e86\u201c\u5373\u4f7f\u4f60\u4f20\u5165\u7684\u662f\u65b0\u5bf9\u8c61\uff0c\u4e5f\u4f1a\u88ab\u5ffd\u7565\uff0c\u4ecd\u7136\u4f7f\u7528\u539f\u59cb\u7ed1\u5b9a\u7684\u5bf9\u8c61\u201c\u3002\u8fd9\u610f\u5473\u7740 metric \u83b7\u53d6\u7684\u7ed1\u5b9a\u5bf9\u8c61\u88ab GC \u56de\u6536\u4e86\uff0c\u53ef\u80fd\u5c31\u4f1a\u8fd4\u56de NaN\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">3. \u4e3a\u4ec0\u4e48\u4f1a\u6709 NaN\uff1f<\/h4>\n\n\n\n<p>\u5982\u679c\u4f7f\u7528\u4e86\u5f31\u5f15\u7528\u6216\u8005\u4ee3\u7801\u903b\u8f91\u4e0d\u5f53\uff0c\u5bfc\u81f4<strong>\u9996\u6b21\u7ed1\u5b9a\u7684\u90a3\u4e2a\u5bf9\u8c61\uff08obj1\uff09<\/strong>\u88ab\u5783\u573e\u56de\u6536\uff08GC\uff09\u4e86\uff0c\u4f46 Gauge \u8fd8\u5728\u6ce8\u518c\u8868\u91cc\u3002\u5f53 Prometheus \u6765\u62c9\u53d6\u6570\u636e\u65f6\uff0cGauge \u627e\u4e0d\u5230\u5bf9\u8c61\uff0c\u5c31\u4f1a\u8fd4\u56de <strong>NaN<\/strong>\uff08Not a Number\uff09\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"801\" height=\"1024\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766928370-image-801x1024.png\" alt=\"\" class=\"wp-image-1742\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766928370-image-801x1024.png 801w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766928370-image-235x300.png 235w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766928370-image-768x982.png 768w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766928370-image.png 1053w\" sizes=\"auto, (max-width: 801px) 100vw, 801px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c\u4e8c\u90e8\u5206\uff1a\u5206\u6790\u7bc7\u2014\u2014\u65e7\u4ee3\u7801\u7684\u201c\u5de7\u5408\u201d\u4e0e\u9690\u60a3<\/h3>\n\n\n\n<p>\u6587\u7ae0\u4e2d\u63d0\u5230\u7684\u65e7\u4ee3\u7801\u903b\u8f91\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u65e7\u4ee3\u7801\u903b\u8f91\nprivate void micrometerMonitor(ThreadPoolRuntimeInfo runtimeInfo) {\n    \/\/ 1. \u5c1d\u8bd5\u4ece\u7f13\u5b58\u83b7\u53d6\u65e7\u5bf9\u8c61\n    ThreadPoolRuntimeInfo existingRuntimeInfo = cache.get(id);\n\n    if (existingRuntimeInfo != null) {\n        \/\/ 2. \u5982\u679c\u65e7\u5bf9\u8c61\u5b58\u5728\uff0c\u628a\u65b0\u5bf9\u8c61\u7684\u6570\u636e copy \u7ed9\u65e7\u5bf9\u8c61\n        BeanUtil.copyProperties(runtimeInfo, existingRuntimeInfo);\n    } else {\n        cache.put(id, runtimeInfo);\n    }\n\n    \/\/ 3. \u3010\u5173\u952e\u70b9\u3011\u8fd9\u91cc\u6bcf\u6b21\u90fd\u4f20\u5165 runtimeInfo\uff08\u65b0\u5bf9\u8c61\uff09\u53bb\u6ce8\u518c\n    Metrics.gauge(\"core.size\", tags, runtimeInfo, ...);\n}<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u4e3a\u4ec0\u4e48\u5b83\u662f\u201c\u5bf9\u201d\u7684\uff1f\uff08\u80fd\u8dd1\u901a\u7684\u5de7\u5408\uff09<\/h4>\n\n\n\n<p>\u661f\u7403\u540c\u5b66\u7684\u7591\u95ee\u662f\uff1a<em>\u201c\u4e3a\u4ec0\u4e48\u6ce8\u518c\u65f6\u4e0d\u4f20 <code>existingRuntimeInfo<\/code> \u800c\u4f20 <code>runtimeInfo<\/code>\uff1f\u201d<\/em><\/p>\n\n\n\n<p>\u5b9e\u9645\u4e0a\uff0c\u4ee3\u7801\u80fd\u8dd1\u901a\u662f\u56e0\u4e3a\u4e00\u4e2a<strong>\u5de7\u5999\u7684\u6570\u636e\u6d41\u8f6c<\/strong>\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7b2c\u4e00\u6b21\u6267\u884c<\/strong>\uff1a<code>existing<\/code> \u4e3a\u7a7a\uff0c<code>runtimeInfo<\/code> \u88ab\u653e\u5165\u7f13\u5b58\uff0c\u5e76\u88ab <code>Metrics.gauge<\/code> <strong>\u7ed1\u5b9a<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u7b2c\u4e8c\u6b21\u53ca\u4ee5\u540e<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><code>Metrics.gauge<\/code> \u518d\u6b21\u88ab\u8c03\u7528\uff0c\u4f20\u5165\u4e86\u65b0\u7684 <code>runtimeInfo<\/code>\u3002<\/li>\n\n\n\n<li><strong>\u4f46\u662f<\/strong>\uff0c\u6839\u636e\u201cFirst Wins\u201d\u539f\u5219\uff0cMicrometer <strong>\u5ffd\u7565<\/strong>\u4e86\u8fd9\u4e2a\u65b0\u5bf9\u8c61\uff0c\u4f9d\u7136\u6b7b\u6b7b\u6293\u4f4f\u7b2c\u4e00\u6b21\u7ed1\u5b9a\u7684\u90a3\u4e2a\u5bf9\u8c61\u3002<\/li>\n\n\n\n<li><strong>\u7531\u4e8e<\/strong>\u4ee3\u7801\u91cc\u6709\u4e00\u53e5 <code>BeanUtil.copyProperties(runtimeInfo, existingRuntimeInfo)<\/code>\uff0c\u8fd9\u884c\u4ee3\u7801\u628a\u65b0\u6570\u636e\u6ce8\u5165\u5230\u4e86<strong>\u7b2c\u4e00\u6b21\u7ed1\u5b9a\u7684\u90a3\u4e2a\u8001\u5bf9\u8c61<\/strong>\u91cc\u3002<\/li>\n\n\n\n<li><strong>\u7ed3\u679c<\/strong>\uff1aMicrometer \u518d\u6b21\u8bfb\u53d6\u8001\u5bf9\u8c61\u65f6\uff0c\u8bfb\u5230\u4e86\u66f4\u65b0\u540e\u7684\u503c\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u65e7\u4ee3\u7801\u7684\u4e09\u4e2a\u95ee\u9898<\/h4>\n\n\n\n<p>\u867d\u7136\u80fd\u8dd1\uff0c\u4f46\u8fd9\u79cd\u5199\u6cd5\u8bed\u4e49\u4e0d\u6e05\u4e14\u6027\u80fd\u4e0d\u4f73\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6027\u80fd\u6d6a\u8d39\uff08Performance\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><code>Metrics.gauge<\/code> \u65b9\u6cd5\u91cc\u6709\u52a0\u9501\u3001Map \u67e5\u627e\u7b49\u903b\u8f91\u3002\u5982\u679c\u4e0d\u52a0\u5224\u65ad\uff0c<strong>\u6bcf\u6b21<\/strong>\u5b9a\u65f6\u4efb\u52a1\u6267\u884c\u90fd\u53bb\u8c03\u4e00\u904d\u6ce8\u518c\u65b9\u6cd5\uff0c\u867d\u7136\u5927\u90e8\u5206\u65f6\u5019\u662f\u201c\u65e0\u7528\u529f\u201d\uff0c\u4f46\u4f9d\u7136\u6d88\u8017 CPU \u8d44\u6e90\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8bed\u4e49\u6df7\u6dc6\uff08Ambiguity\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u9605\u8bfb\u4ee3\u7801\u7684\u4eba\u4f1a\u8bef\u4ee5\u4e3a\u6bcf\u6b21\u90fd\u5728\u7ed1\u5b9a\u65b0\u5bf9\u8c61\uff0c\u5b9e\u9645\u4e0a\u5e76\u6ca1\u6709\u3002\u8fd9\u8fdd\u53cd\u4e86\u201c\u4ee3\u7801\u5373\u6587\u6863\u201d\u7684\u539f\u5219\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6570\u636e\u5c55\u793a\u4e0d\u76f4\u89c2\uff08Visualization\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u65e7\u4ee3\u7801\u76f4\u63a5\u8fd4\u56de <code>getRejectCount()<\/code>\uff08\u603b\u62d2\u7edd\u6570\uff09\u3002<\/li>\n\n\n\n<li>\u5728\u76d1\u63a7\u56fe\u4e0a\uff0c\u8fd9\u4f1a\u662f\u4e00\u6761\u659c\u7387\u5411\u4e0a\u7684\u76f4\u7ebf\uff08\u4f8b\u5982\uff1a\u6628\u5929 100\uff0c\u4eca\u5929 200\uff09\u3002<\/li>\n\n\n\n<li><strong>\u8fd0\u7ef4\u75db\u70b9<\/strong>\uff1a\u6211\u4eec\u901a\u5e38\u4e0d\u5173\u5fc3\u201c\u5f00\u673a\u4ee5\u6765\u62d2\u7edd\u4e86\u591a\u5c11\u201d\uff0c\u6211\u4eec\u5173\u5fc3\u7684\u662f\u201c<strong>\u8fc7\u53bb 1 \u5206\u949f\u62d2\u7edd\u4e86\u591a\u5c11<\/strong>\u201d\uff08\u7a81\u589e\u68c0\u6d4b\uff09\u3002\u65e7\u4ee3\u7801\u6ca1\u6cd5\u76f4\u63a5\u4f53\u73b0\u8fd9\u4e2a\u201c\u589e\u91cf\u201d\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c\u4e09\u90e8\u5206\uff1a\u91cd\u6784\u7bc7\u2014\u2014\u4f18\u96c5\u7684\u76d1\u63a7\u5b9e\u73b0<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"494\" height=\"1024\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766928406-image-494x1024.png\" alt=\"\" class=\"wp-image-1743\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766928406-image-494x1024.png 494w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766928406-image-145x300.png 145w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766928406-image-768x1591.png 768w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766928406-image-742x1536.png 742w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766928406-image-989x2048.png 989w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/12\/1766928406-image-scaled.png 1236w\" sizes=\"auto, (max-width: 494px) 100vw, 494px\" \/><\/figure>\n\n\n\n<p>\u9a6c\u54e5\uff08Martin\uff09\u7684\u91cd\u6784\u4ee3\u7801\u89e3\u51b3\u4e86\u4e0a\u8ff0\u6240\u6709\u95ee\u9898\u3002\u6211\u4eec\u6765\u770b\u6838\u5fc3\u4f18\u5316\u70b9\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u903b\u8f91\u5206\u5c42\uff1a\u6ce8\u518c\u4e0e\u66f4\u65b0\u5206\u79bb<\/h4>\n\n\n\n<p>\u91cd\u6784\u540e\u7684\u4ee3\u7801\u5c06\u6d41\u7a0b\u6e05\u6670\u5730\u5206\u4e3a\u4e86\u4e24\u6b65\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u4f2a\u4ee3\u7801\u6d41\u7a0b\nThreadPoolRuntimeInfo existing = cache.get(id);\n\nif (existing == null) {\n    \/\/ === \u5206\u652f A\uff1a\u9996\u6b21\u521d\u59cb\u5316 ===\n    \/\/ 1. \u521b\u5efa\u4e00\u4e2a\u4e13\u5c5e\u7684\u6ce8\u518c\u5bf9\u8c61\uff08Register Object\uff09\n    ThreadPoolRuntimeInfo registerInfo = new ThreadPoolRuntimeInfo();\n    copy(newData, registerInfo);\n    cache.put(id, registerInfo);\n\n    \/\/ 2. \u6ce8\u518c Gauge\uff0c\u7ed1\u5b9a\u8fd9\u4e2a registerInfo\n    \/\/ \u6ce8\u610f\uff1a\u8fd9\u884c\u4ee3\u7801\u5bf9\u4e8e\u6bcf\u4e2a\u7ebf\u7a0b\u6c60\u53ea\u6267\u884c\u4e00\u6b21\uff01\n    Metrics.gauge(..., registerInfo, ...); \n\n} else {\n    \/\/ === \u5206\u652f B\uff1a\u540e\u7eed\u66f4\u65b0 ===\n    \/\/ 1. \u53ea\u505a\u5c5e\u6027\u62f7\u8d1d\n    \/\/ \u4e0d\u9700\u8981\u518d\u8c03 Metrics.gauge\uff0c\u56e0\u4e3a\u5f15\u7528\u6ca1\u53d8\uff0c\u53d8\u7684\u662f\u5b57\u6bb5\u503c\n    copy(newData, existing);\n}<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f18\u70b9<\/strong>\uff1a\u6d88\u9664\u4e86\u91cd\u590d\u8c03\u7528\u7684\u6027\u80fd\u5f00\u9500\uff0c\u903b\u8f91\u6e05\u6670\uff0c\u660e\u786e\u544a\u8bc9\u8bfb\u8005\u201c\u6ce8\u518c\u53ea\u53d1\u751f\u4e00\u6b21\u201d\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u5f15\u5165 DeltaWrapper\uff08\u589e\u91cf\u5305\u88c5\u5668\uff09<\/h4>\n\n\n\n<p>\u8fd9\u662f\u4e3a\u4e86\u89e3\u51b3\u76d1\u63a7\u56fe\u8868\u201c\u4e00\u76f4\u6da8\u201d\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u95ee\u9898<\/strong>\uff1a\u7ebf\u7a0b\u6c60\u7684 <code>rejectCount<\/code> \u662f\u4e00\u4e2a\u7d2f\u8ba1\u503c\uff08LongAdder\uff09\uff0c\u53ea\u4f1a\u53d8\u5927\u3002<\/li>\n\n\n\n<li><strong>\u76ee\u6807<\/strong>\uff1a\u60f3\u770b\u201c\u5f53\u524d\u8fd9\u8f6e\u91c7\u96c6\u5468\u671f\u5185\uff08\u6bd4\u5982 5 \u79d2\u5185\uff09\u589e\u52a0\u4e86\u591a\u5c11\u201d\u3002<\/li>\n\n\n\n<li><strong>\u5b9e\u73b0<\/strong>\uff1a <code>\/\/ \u6bcf\u6b21\u91c7\u96c6\u65f6\u6267\u884c completedTaskDeltaMap.get(id).update(runtimeInfo.getCompletedTaskCount());<\/code> <code>DeltaWrapper<\/code> \u5185\u90e8\u903b\u8f91\u5927\u6982\u662f\uff1a <code>class DeltaWrapper { long lastValue; \/\/ \u4e0a\u6b21\u7684\u603b\u91cf long delta; \/\/ \u589e\u91cfpublic void update(long currentValue) { this.delta = currentValue - this.lastValue; \/\/ \u8ba1\u7b97\u5dee\u503c this.lastValue = currentValue; \/\/ \u66f4\u65b0\u4e0a\u6b21\u7684\u503c } \/\/ Gauge \u7ed1\u5b9a\u7684\u662f\u8fd9\u4e2a\u65b9\u6cd5 public double getDelta() { return delta; }}<\/code><\/li>\n\n\n\n<li><strong>\u6548\u679c<\/strong>\uff1a\u73b0\u5728 Prometheus \u91c7\u96c6\u5230\u7684 <code>reject.count<\/code> \u4e0d\u518d\u662f 1000, 1005, 1010\uff0c\u800c\u662f 0, 5, 5\u3002\u8fd0\u7ef4\u4eba\u5458\u53ef\u4ee5\u76f4\u63a5\u5728 Grafana \u4e0a\u770b\u5230\u6ce2\u5cf0\uff0c\u4e00\u65e6\u6709\u62d2\u7edd\u4efb\u52a1\uff0c\u56fe\u8868\u4f1a\u77ac\u95f4\u8df3\u8d77\u6765\uff0c\u975e\u5e38\u76f4\u89c2\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<p>\u8fd9\u7bc7\u6587\u7ae0\u901a\u8fc7\u4e00\u4e2a\u5177\u4f53\u7684\u4ee3\u7801\u91cd\u6784\u6848\u4f8b\uff0c\u6559\u4e86\u6211\u4eec\u4e09\u4ef6\u4e8b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6df1\u5ea6\u7406\u89e3\u5de5\u5177<\/strong>\uff1aMicrometer \u7684 Gauge \u662f\u57fa\u4e8e<strong>\u5bf9\u8c61\u5f15\u7528<\/strong>\u7684\uff0c\u4e0d\u662f\u57fa\u4e8e\u503c\u7684\u3002\u91cd\u590d\u6ce8\u518c\u540c\u540d Gauge \u662f\u65e0\u6548\u7684\u3002<\/li>\n\n\n\n<li><strong>\u4ee3\u7801\u6574\u6d01\u4e4b\u9053<\/strong>\uff1a\u4e0d\u8981\u4f9d\u8d56\u201c\u526f\u4f5c\u7528\u201d\uff08Side Effect\uff09\u8ba9\u4ee3\u7801\u5de5\u4f5c\uff08\u65e7\u4ee3\u7801\u4f9d\u8d56 copyProperties \u6551\u6d3b\u4e86\u9519\u8bef\u7684\u6ce8\u518c\u903b\u8f91\uff09\u3002\u660e\u786e\u5206\u79bb\u201c\u521d\u59cb\u5316\u201d\u548c\u201c\u66f4\u65b0\u201d\u903b\u8f91\u3002<\/li>\n\n\n\n<li><strong>\u76d1\u63a7\u7684\u4e1a\u52a1\u4ef7\u503c<\/strong>\uff1a\u76d1\u63a7\u4e0d\u4ec5\u662f\u628a\u6570\u4f20\u4e0a\u53bb\uff0c\u8fd8\u8981\u8003\u8651\u201c\u600e\u4e48\u770b\u201d\u3002\u5bf9\u4e8e\u8ba1\u6570\u7c7b\u6307\u6807\uff08\u62d2\u7edd\u6570\u3001\u5b8c\u6210\u6570\uff09\uff0c<strong>\u589e\u91cf\uff08Delta\uff09<\/strong>\u5f80\u5f80\u6bd4\u603b\u91cf\u66f4\u6709\u76d1\u63a7\u4ef7\u503c\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u8fd9\u7bc7\u6587\u7ae0\u7684\u5185\u5bb9\u975e\u5e38\u5e72\u8d27\uff0c\u6307\u51fa\u4e86\u5b9e\u9645\u5f00\u53d1\u4e2d\u5f88\u5bb9\u6613\u5ffd\u7565\u7684\u7ec6\u8282\u3002\u4e3a\u4e86\u8ba9\u4f60\u5bf9\u8fd9\u4e2a\u8bdd\u9898\u7684\u7406\u89e3\u66f4\u52a0\u7acb\u4f53\u548c\u5168\u9762\uff0c\u6211\u518d\u8865\u5145 <strong>4 \u4e2a\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u81f3\u5173\u91cd\u8981\u7684\u201c\u9690\u85cf\u5173\u5361\u201d<\/strong>\u3002\u8fd9\u4e9b\u5185\u5bb9\u5f80\u5f80\u662f\u91cd\u6784\u4ee3\u7801\u4e0a\u7ebf\u540e\uff0c\u624d\u4f1a\u88ab\u201c\u6bd2\u6253\u201d\u51fa\u6765\u7684\u7ecf\u9a8c\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">1. Prometheus \u7684\u201c\u53cd\u76f4\u89c9\u201d\u6700\u4f73\u5b9e\u8df5\uff1aTotal vs Delta<\/h3>\n\n\n\n<p>\u6587\u7ae0\u4e2d\u63d0\u5230\u7684\u4e00\u4e2a\u4f18\u5316\u70b9\u662f\uff1a<strong>\u201c\u4e3a\u4e86\u56fe\u8868\u76f4\u89c2\uff0c\u624b\u52a8\u8ba1\u7b97 Delta\uff08\u589e\u91cf\uff09\u4f20\u7ed9 Gauge\u201d<\/strong>\u3002<\/p>\n\n\n\n<p><strong>\u8fd9\u4e00\u70b9\u9700\u8981\u8fa9\u8bc1\u5730\u770b<\/strong>\u3002\u867d\u7136\u8fd9\u6837\u505a\u5728 Java \u5c42\u9762\u89e3\u51b3\u4e86\u201c\u76f4\u89c2\u201d\u95ee\u9898\uff0c\u4f46\u4ece <strong>Prometheus \u539f\u751f\u6700\u4f73\u5b9e\u8df5<\/strong>\u7684\u89d2\u5ea6\u6765\u770b\uff0c\u8fd9\u5176\u5b9e\u662f\u4e00\u79cd<strong>\u53cd\u6a21\u5f0f\uff08Anti-Pattern\uff09<\/strong>\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6807\u51c6\u505a\u6cd5<\/strong>\uff1aPrometheus \u5b98\u65b9\u5efa\u8bae\u76f4\u63a5\u4e0a\u62a5<strong>\u7d2f\u52a0\u503c\uff08Counter\/Total\uff09<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u4e3a\u4ec0\u4e48\uff1f<\/strong>\n<ul class=\"wp-block-list\">\n<li>Prometheus \u7684\u5f3a\u9879\u5728\u4e8e PromQL\u3002\u4f60\u53ea\u9700\u8981\u4e0a\u62a5\u603b\u91cf\uff0c\u7136\u540e\u5728 Grafana \u91cc\u4f7f\u7528 <code>rate()<\/code> \u6216 <code>irate()<\/code> \u51fd\u6570\uff08\u4f8b\u5982 <code>rate(reject_count_total[1m])<\/code>\uff09\uff0c\u5b83\u80fd\u81ea\u52a8\u8ba1\u7b97\u51fa\u201c\u6bcf\u79d2\/\u6bcf\u5206\u949f\u7684\u589e\u957f\u901f\u7387\u201d\u3002<\/li>\n\n\n\n<li><strong>\u5bb9\u9519\u6027<\/strong>\uff1a\u5982\u679c\u4f60\u7684 Java \u5e94\u7528\u91cd\u542f\u4e86\uff0c\u624b\u52a8\u8ba1\u7b97\u7684 Delta \u53ef\u80fd\u4f1a\u4e22\u5931\u6216\u5f02\u5e38\uff1b\u800c Prometheus \u5bf9 Counter \u7684\u91cd\u542f\uff08\u91cd\u7f6e\u4e3a0\uff09\u6709\u4e13\u95e8\u7684\u6570\u5b66\u5904\u7406\u903b\u8f91\uff0c\u4e0d\u4f1a\u5bfc\u81f4\u56fe\u8868\u65ad\u88c2\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><strong>\u8865\u5145\u5efa\u8bae<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5982\u679c\u4f60\u7684\u540e\u7aef\u662f Prometheus<\/strong>\uff1a\u5efa\u8bae\u4fdd\u7559 <code>reject_count_total<\/code>\uff08\u603b\u91cf\uff09\u6307\u6807\uff0c\u5229\u7528 PromQL \u7ed8\u56fe\u3002\u6587\u7ae0\u4e2d\u7684 Delta \u65b9\u6848\u66f4\u9002\u5408\u90a3\u4e9b\u4e0d\u652f\u6301\u5f3a\u5927\u7684\u7c7b\u4f3c PromQL \u8bed\u6cd5\u7684\u7b80\u5355\u76d1\u63a7\u7cfb\u7edf\uff0c\u6216\u8005\u662f\u4e3a\u4e86\u5728 Java \u5185\u90e8\u505a\u67d0\u4e9b\u77ac\u65f6\u62a5\u8b66\u903b\u8f91\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u5185\u5b58\u6cc4\u6f0f\u9690\u60a3\uff1a\u52a8\u6001\u7ebf\u7a0b\u6c60\u7684\u201c\u9500\u6bc1\u201d\u95ee\u9898<\/h3>\n\n\n\n<p>\u6587\u7ae0\u7684\u4ee3\u7801\u89e3\u51b3\u4e86\u201c\u6ce8\u518c\u201d\u548c\u201c\u66f4\u65b0\u201d\u7684\u95ee\u9898\uff0c\u4f46<strong>\u6ca1\u6709\u6d89\u53ca\u201c\u9500\u6bc1\u201d<\/strong>\u3002<\/p>\n\n\n\n<p><strong>\u573a\u666f<\/strong>\uff1a<br>\u5047\u8bbe\u4f60\u7684\u7cfb\u7edf\u652f\u6301<strong>\u52a8\u6001\u5220\u9664<\/strong>\u7ebf\u7a0b\u6c60\uff0c\u6216\u8005\u67d0\u4e9b\u4e34\u65f6\u7ebf\u7a0b\u6c60\u7528\u5b8c\u5c31\u5173\u95ed\u4e86\u3002<\/p>\n\n\n\n<p><strong>\u95ee\u9898<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4ee3\u7801\u4e2d\u7684 <code>micrometerMonitorCache<\/code> \u662f\u4e00\u4e2a <code>Map<\/code>\uff0c\u5b83\u5f3a\u5f15\u7528\u4e86 <code>ThreadPoolRuntimeInfo<\/code>\u3002<\/li>\n\n\n\n<li>Micrometer \u7684 <code>MeterRegistry<\/code> \u5185\u90e8\u4e5f\u7ef4\u62a4\u4e86 Gauge \u7684\u5217\u8868\u3002<\/li>\n\n\n\n<li><strong>\u540e\u679c<\/strong>\uff1a\u5982\u679c\u4f60\u9500\u6bc1\u4e86\u7ebf\u7a0b\u6c60\uff0c\u4f46\u6ca1\u6709\u4ece\u8fd9\u4e24\u4e2a\u5730\u65b9<strong>\u79fb\u9664<\/strong>\uff0c\u90a3\u4e48\uff1a\n<ol class=\"wp-block-list\">\n<li>\u5185\u5b58\u6cc4\u6f0f\uff1a\u5bf9\u8c61\u6c38\u8fdc\u65e0\u6cd5\u88ab GC\u3002<\/li>\n\n\n\n<li>\u810f\u6570\u636e\uff1aPrometheus \u4f9d\u7136\u4f1a\u62c9\u53d6\u5230\u8fd9\u4e2a\u5df2\u5e9f\u5f03\u7ebf\u7a0b\u6c60\u7684\u6307\u6807\uff08\u901a\u5e38\u4fdd\u6301\u5728\u6700\u540e\u4e00\u6b21\u7684\u503c\uff09\uff0c\u5bfc\u81f4\u76d1\u63a7\u8bef\u62a5\u3002<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n\n\n\n<p><strong>\u89e3\u51b3\u65b9\u6848<\/strong>\uff1a<br>\u9700\u8981\u5728\u9500\u6bc1\u7ebf\u7a0b\u6c60\u7684\u903b\u8f91\u4e2d\uff0c\u52a0\u5165<strong>\u6e05\u7406\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public void removeMonitor(String threadPoolId) {\n    \/\/ 1. \u4ece\u672c\u5730\u7f13\u5b58\u79fb\u9664\n    ThreadPoolRuntimeInfo info = micrometerMonitorCache.remove(threadPoolId);\n\n    \/\/ 2. \u3010\u5173\u952e\u3011\u4ece Micrometer \u6ce8\u518c\u8868\u4e2d\u79fb\u9664 Gauge\n    \/\/ \u8fd9\u9700\u8981\u4f60\u5728\u6ce8\u518c\u65f6\u4fdd\u5b58 Gauge \u7684\u5f15\u7528\uff0c\u6216\u8005\u901a\u8fc7 search \u65b9\u6cd5\u67e5\u627e\u5e76 remove\n    if (info != null) {\n        \/\/ \u4f2a\u4ee3\u7801\uff1a\u5b9e\u9645\u79fb\u9664\u903b\u8f91\u9700\u8981\u901a\u8fc7 MeterRegistry \u67e5\u627e\n        Tags tags = Tags.of(\"thread.pool.id\", threadPoolId);\n        meterRegistry.remove(meterRegistry.find(\"core.size\").tags(tags).meter());\n        \/\/ ... \u5bf9\u6bcf\u4e2a\u6307\u6807\u90fd\u8981\u6267\u884c remove\n    }\n}<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u7ebf\u7a0b\u5b89\u5168\u4e0e\u53ef\u89c1\u6027\uff08Visibility\uff09<\/h3>\n\n\n\n<p>\u5728\u91cd\u6784\u540e\u7684\u4ee3\u7801\u4e2d\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u7ebf\u7a0b A (\u5b9a\u65f6\u4efb\u52a1) \u6267\u884c\uff1a\nBeanUtil.copyProperties(runtimeInfo, existingRuntimeInfo);\n\n\/\/ \u7ebf\u7a0b B (Prometheus HTTP \u62c9\u53d6) \u6267\u884c\uff1a\nMetrics.gauge(..., existingRuntimeInfo, ThreadPoolRuntimeInfo::getCorePoolSize);<\/code><\/pre>\n\n\n\n<p><strong>\u6f5c\u5728\u98ce\u9669<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>ThreadPoolRuntimeInfo<\/code> \u662f\u4e00\u4e2a\u666e\u901a\u7684 POJO\uff08\u666e\u901a Java \u5bf9\u8c61\uff09\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u5b83\u7684\u5b57\u6bb5\uff08\u5982 <code>corePoolSize<\/code>\uff09\u53ea\u662f\u666e\u901a\u7684 <code>int<\/code> \u800c\u6ca1\u6709\u4f7f\u7528 <code>volatile<\/code> \u5173\u952e\u5b57\u3002<\/li>\n\n\n\n<li>\u6839\u636e Java \u5185\u5b58\u6a21\u578b\uff08JMM\uff09\uff0c<strong>\u7ebf\u7a0b A \u7684\u5199\u5165\uff0c\u7ebf\u7a0b B \u4e0d\u4e00\u5b9a\u80fd\u7acb\u523b\u770b\u89c1<\/strong>\uff08\u867d\u7136\u5728 X86 \u67b6\u6784\u4e0b\u901a\u5e38\u80fd\u770b\u89c1\uff0c\u4f46\u5728\u67d0\u4e9b\u67b6\u6784\u6216\u6781\u7aef\u9ad8\u5e76\u53d1\u4e0b\u53ef\u80fd\u6709\u5ef6\u8fdf\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u8865\u5145\u5efa\u8bae<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u867d\u7136\u76d1\u63a7\u6570\u636e\u7684\u201c\u6700\u7ec8\u4e00\u81f4\u6027\u201d\u901a\u5e38\u662f\u53ef\u4ee5\u63a5\u53d7\u7684\uff08\u665a\u51e0\u79d2\u770b\u5230\u53d8\u5316\u6ca1\u5173\u7cfb\uff09\uff0c\u4f46\u4e3a\u4e86\u4e25\u8c28\uff0c\u5efa\u8bae <code>ThreadPoolRuntimeInfo<\/code> \u4e2d\u7684\u6307\u6807\u5b57\u6bb5\u4f7f\u7528 <code>volatile<\/code> \u4fee\u9970\uff0c\u6216\u8005\u76f4\u63a5\u4f7f\u7528 <code>AtomicLong<\/code> \/ <code>AtomicInteger<\/code>\uff0c\u65e2\u4fdd\u8bc1\u53ef\u89c1\u6027\uff0c\u53c8\u65b9\u4fbf\u505a\u539f\u5b50\u66f4\u65b0\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">4. Tag Cardinality\uff08\u6807\u7b7e\u57fa\u6570\uff09\u7206\u70b8<\/h3>\n\n\n\n<p>\u4ee3\u7801\u4e2d\u4f7f\u7528\u4e86 <code>threadPoolId<\/code> \u4f5c\u4e3a Tag\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Tag.of(DYNAMIC_THREAD_POOL_ID_TAG, threadPoolId)<\/code><\/pre>\n\n\n\n<p><strong>\u4e25\u91cd\u8b66\u544a<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u4f60\u7684 <code>threadPoolId<\/code> \u662f<strong>\u6709\u9650\u7684<\/strong>\uff08\u6bd4\u5982 <code>order-pool<\/code>, <code>user-pool<\/code>\uff09\uff0c\u8fd9\u5b8c\u5168\u6ca1\u95ee\u9898\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u4f60\u7684\u4ee3\u7801\u91cc\u6709\u903b\u8f91\u4f1a\u81ea\u52a8\u751f\u6210<strong>\u968f\u673a ID<\/strong> \u7684\u7ebf\u7a0b\u6c60\uff08\u6bd4\u5982 <code>pool-uuid-1234<\/code>\uff09\uff0c\u6216\u8005\u6839\u636e\u7528\u6237 ID \u521b\u5efa\u7ebf\u7a0b\u6c60\u3002<\/li>\n\n\n\n<li><strong>\u540e\u679c<\/strong>\uff1aMicrometer \u548c Prometheus \u4f1a\u4e3a\u6bcf\u4e00\u4e2a\u552f\u4e00\u7684 Tag \u503c\u521b\u5efa\u4e00\u4e2a\u65b0\u7684 Time Series\u3002\u5982\u679c ID \u662f\u65e0\u9650\u589e\u957f\u7684\uff0c\u4f1a\u5bfc\u81f4 Prometheus <strong>\u5185\u5b58\u7206\u70b8<\/strong>\u751a\u81f3\u5d29\u6e83\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u7ecf\u9a8c<\/strong>\uff1a\u6c38\u8fdc\u4e0d\u8981\u628a UUID\u3001\u7528\u6237 ID\u3001\u8bf7\u6c42 ID \u8fd9\u79cd<strong>\u65e0\u9650\u53d6\u503c<\/strong>\u7684\u6570\u636e\u653e\u5230 Metrics \u7684 Tag \u91cc\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<p>\u9a6c\u54e5\u7684\u8fd9\u7bc7\u6587\u7ae0\u89e3\u51b3\u7684\u662f<strong>\u201c\u5982\u4f55\u6b63\u786e\u5730\u5728\u8be5\u4f53\u7cfb\u4e0b\u628a\u503c\u4f20\u51fa\u53bb\u201d<\/strong>\uff0c\u800c\u4ee5\u4e0a\u8865\u5145\u7684\u56db\u70b9\u89e3\u51b3\u7684\u662f<strong>\u201c\u5982\u4f55\u5728\u751f\u4ea7\u73af\u5883\u7a33\u5065\u3001\u957f\u4e45\u5730\u8fd0\u884c\u201d<\/strong>\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u600e\u4e48\u7b97<\/strong>\uff1a\u4f18\u5148\u7528 Prometheus \u7b97 Rate\uff0cJava \u7aef\u53ea\u4f20 Total\uff08\u9664\u975e\u6709\u7279\u6b8a\u9700\u6c42\uff09\u3002<\/li>\n\n\n\n<li><strong>\u600e\u4e48\u5220<\/strong>\uff1a\u6709\u6ce8\u518c\u5fc5\u987b\u6709\u6ce8\u9500\uff0c\u5426\u5219\u5185\u5b58\u6cc4\u6f0f\u3002<\/li>\n\n\n\n<li><strong>\u600e\u4e48\u5b58<\/strong>\uff1a\u591a\u7ebf\u7a0b\u8bfb\u5199 POJO \u6ce8\u610f\u53ef\u89c1\u6027\uff08volatile\uff09\u3002<\/li>\n\n\n\n<li><strong>\u600e\u4e48\u6807<\/strong>\uff1aTag \u5fc5\u987b\u662f\u6709\u9650\u96c6\u5408\uff0c\u62d2\u7edd\u968f\u673a\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u7bc7\u6587\u7ae0\u6df1\u5165\u63a2\u8ba8\u4e86 Java \u76d1\u63a7\u4f53\u7cfb\u4e2d\uff08\u7279\u522b\u662f\u57fa\u4e8e Micrometer \u548c Spring Boot Actuator\uff09\u5173\u4e8e M &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-1736","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/posts\/1736","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/eve2333.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1736"}],"version-history":[{"count":4,"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/posts\/1736\/revisions"}],"predecessor-version":[{"id":1744,"href":"https:\/\/eve2333.top\/index.php?rest_route=\/wp\/v2\/posts\/1736\/revisions\/1744"}],"wp:attachment":[{"href":"https:\/\/eve2333.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1736"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eve2333.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1736"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eve2333.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1736"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}