{"id":34344,"date":"2023-10-15T06:23:02","date_gmt":"2023-10-27T22:19:18","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8gcra%ef%bc%88%e9%80%9a%e7%94%a8%e8%9c%82%e7%aa%9d%e9%80%9f%e7%8e%87%e7%ae%97%e6%b3%95%ef%bc%89%e5%af%b9api%e8%af%b7%e6%b1%82%e8%bf%9b%e8%a1%8c%e9%80%9f%e7%8e%87%e9%99%90%e5%88%b6%e7%9a%84\/"},"modified":"2024-05-04T04:18:55","modified_gmt":"2024-05-03T20:18:55","slug":"%e7%94%a8gcra%ef%bc%88%e9%80%9a%e7%94%a8%e8%9c%82%e7%aa%9d%e9%80%9f%e7%8e%87%e7%ae%97%e6%b3%95%ef%bc%89%e5%af%b9api%e8%af%b7%e6%b1%82%e8%bf%9b%e8%a1%8c%e9%80%9f%e7%8e%87%e9%99%90%e5%88%b6%e7%9a%84","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8gcra%ef%bc%88%e9%80%9a%e7%94%a8%e8%9c%82%e7%aa%9d%e9%80%9f%e7%8e%87%e7%ae%97%e6%b3%95%ef%bc%89%e5%af%b9api%e8%af%b7%e6%b1%82%e8%bf%9b%e8%a1%8c%e9%80%9f%e7%8e%87%e9%99%90%e5%88%b6%e7%9a%84\/","title":{"rendered":"\u7528GCRA\uff08\u901a\u7528\u8702\u7a9d\u901f\u7387\u7b97\u6cd5\uff09\u5bf9API\u8bf7\u6c42\u8fdb\u884c\u901f\u7387\u9650\u5236\u7684\u8ba8\u8bba"},"content":{"rendered":"<p>\u672c\u6587\u662f\u5bcc\u58eb\u901a\u4e91\u6280\u672f2019\u5e74\u201c\u964d\u4e34\u8282\u65e5\u5386\u201d\u7684\u7b2c21\u5929\u6587\u7ae0\u3002<br \/>\n\u7b2c20\u5929\u662f\u7531@foobaron\u5148\u751f\u5f00\u59cb\u63d0\u4f9b\u201c\u8fde\u63a5\u79c1\u4eba\u5c40\u57df\u7f51\u201d\u7684\u79c1\u4eba\u6865\u63a5\u529f\u80fd\uff01<\/p>\n<h2>\u9996\u5148<\/h2>\n<p>\u4e00\u5f00\u59cb<\/p>\n<p>\u5f00\u5934<\/p>\n<p>\u5728\u5f00\u59cb\u65f6<\/p>\n<p>\u8d77\u521d<\/p>\n<p>\u4f60\u597d\uff01\u6211\u662f\u5728NIFCLOUD\u5f00\u53d1IaaS API\u7684 @kzmake\u3002<\/p>\n<p>\u8bf7\u95ee\u5927\u5bb6\u662f\u5982\u4f55\u5904\u7406API\u8bf7\u6c42\u7684\u77ac\u95f4\u7206\u53d1\u7684\u60c5\u51b5\u5462\uff1f<\/p>\n<p>\u4e3a\u4e86\u6700\u5c0f\u5316\u7531\u8bf7\u6c42\u7a81\u53d1\u5f15\u8d77\u7684\u670d\u52a1\u5f71\u54cd\uff0c\u5728\u516c\u5f00WebAPI\u65f6\u53ef\u80fd\u9700\u8981\u4e00\u4e9b\u673a\u5236\uff0c\u5982\u901f\u7387\u9650\u5236\u7b49\u3002<\/p>\n<p>\u4eca\u5e74\u56e0\u4e3a\u8fd9\u6837\u90a3\u6837\u7684\u4e8b\u60c5,<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">WebAPI\u306e\u30ec\u30fc\u30c8\u5236\u5fa1\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u3057\u3066\u3001GCRA\u306e\u89e3\u8aac<\/ul>\n<\/li>\n<\/ul>\n<p>GCRA + Redis\u3092\u5229\u7528\u3057\u305fWebAPI\u306e\u30ec\u30fc\u30c8\u5236\u9650<\/p>\n<p>\u6211\u60f3\u7528\u7b80\u7565\u7684\u65b9\u5f0f\u6765\u5199\u8fd9\u4e2a\u6545\u4e8b\uff01<\/p>\n<h2>?\u7b80\u800c\u8a00\u4e4b<\/h2>\n<p>GCRA\u306f\u30b7\u30f3\u30d7\u30eb\u3067\u9ad8\u901f\u306a\u30ec\u30fc\u30c8\u5236\u9650\u3092\u5b9f\u73fe\u3059\u308b<\/p>\n<p>GCRA + Redis\u3067\u597d\u304d\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u3092Key\u3068\u3057\u3066\u30ec\u30fc\u30c8\u5236\u9650\u3067\u304d\u308b<\/p>\n<p>GCRA + Redis\u3067\u8907\u6570\u306e\u30b5\u30fc\u30d3\u30b9\u9593\u3067\u30ec\u30fc\u30c8\u5236\u9650\u3092\u5171\u6709\u3067\u304d\u308b<\/p>\n<h2>?GCRA\uff08\u901a\u7528\u4fe1\u9053\u901f\u7387\u7b97\u6cd5\uff09\u662f\u4ec0\u4e48\uff1f<\/h2>\n<p>\u8fd9\u662f\u4e00\u79cd\u8868\u793aLeaky buket\u7b97\u6cd5\u7684\u65b9\u6cd5\uff0c\u65e0\u9700\u6ef4\u6f0f\u8fc7\u7a0b\u3002\u5b83\u901a\u8fc7\u79f0\u4e3a\u201c\u5355\u5143\u201d\u7684\u56fa\u5b9a\u5927\u5c0f\u7684\u5c0f\u5305\u7684\u5355\u4f4d\u6765\u5b9e\u73b0\u901f\u7387\u9650\u5236\u548c\u8c03\u5ea6\u3002<\/p>\n<h3>Leaky bucket\u662f\u6307\u2026\u2026 (Please provide the complete sentence or context for a more accurate paraphrase.)<\/h3>\n<p>\u5177\u6709\u4e00\u5b9a\u6570\u91cf\u7684\u201c\u6f0f\u6597\u201d\uff08\u53d7\u9650\u7684\u541e\u5410\u91cf\uff09\u7684\u6876\u3002\u65e0\u6cd5\u5bb9\u7eb3\u8d85\u8fc7\u5176\u5bb9\u91cf\u7684\u6876\u3002\u901a\u8fc7\u6ef4\u6c34\u7684\u8fc7\u7a0b\uff0c\u53ef\u4ee5\u8868\u8fbe\u5e73\u6ed1\u5730\u6062\u590d\u6876\u5bb9\u91cf\u3002<\/p>\n<p>\u8fd9\u79cd\u6ef4\u6f0f\u8fc7\u7a0b\u548c\u5b58\u50a8\u5bb9\u91cf\u4e5f\u53ef\u4ee5\u5e94\u7528\u4e8eAPI\u8bf7\u6c42\u7684\u901f\u7387\u9650\u5236\u7b49\u65b9\u9762\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d1c8437434c4406c11040\/15-0.gif\" alt=\"leaky_bucket\" \/><\/div>\n<h3>GCRA \u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/h3>\n<p>\u8fd9\u662f\u4e00\u4e2a\u7b97\u6cd5\uff0c\u6839\u636e\u4ece\u6570\u636e\u5305\u6392\u51fa\u88ab\u7406\u8bba\u4e0a\u63d2\u5165\u7684\u5355\u5143\u7684\u65f6\u523b\u5230\u8fbe\u65f6\u95f4\uff08TAT\uff09\uff0c\u6765\u6a21\u62dfLeaky bucket\u6ef4\u6f0f\u8fc7\u7a0b\u3002<\/p>\n<h4>GCRA\u6240\u4f7f\u7528\u7684\u53c2\u6570\u548c\u516c\u5f0f\u3002<\/h4>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">$t_a$<\/ul>\n<\/li>\n<\/ul>\n<p>\u30bb\u30eb\u3092\u30d1\u30b1\u30c3\u30c8\u306b\u633f\u5165\u3057\u3088\u3046\u3068\u3057\u305f\u6642\u523b<\/p>\n<p>$TAT$<\/p>\n<p>\u633f\u5165\u3055\u308c\u308b\u30bb\u30eb\u304c\u30d0\u30b1\u30c3\u30c8\u304b\u3089\u6392\u51fa\u3055\u308c\u308b\u307e\u3067\u306e\u6642\u523b<\/p>\n<p>$T$<\/p>\n<p>\u30d1\u30b1\u30c3\u30c8\u304c1\u3064\u306e\u30bb\u30eb\u3092\u6392\u51fa\u3059\u308b\u6642\u9593<\/p>\n<p>$\\tau$<\/p>\n<p>\u30d0\u30b1\u30c3\u30c8\u306e\u6642\u9593\u7684\u306a\u6700\u5927\u5bb9\u91cf<\/p>\n<p>$\u30d0\u30b1\u30c3\u30c8\u306e\u30bb\u30eb\u6700\u5927\u5bb9\u91cf \\times T$<\/p>\n<p>$\\tau + T$<\/p>\n<p>\u30d1\u30b1\u30c3\u30c8\u306e\u6392\u51fa\u611f\u899a\u3092\u542b\u3081\u3066\u8a31\u5bb9\u3067\u304d\u308b\u6700\u5927\u6642\u9593<\/p>\n<p>\u5f53\u6876\u4e2d\u7684\u5355\u5143\u6570\u4e3a$n$\u65f6\uff0c\u7406\u8bba\u5230\u8fbe\u65f6\u95f4$TAT$\u53ef\u4ee5\u8868\u793a\u4e3a\uff1a<\/p>\n<pre class=\"post-pre\"><code>TAT_{n+1} = \\begin{cases}\r\n  t_a + T &amp; (n=0) \\\\\r\n  TAT_{n} + T &amp; (otherwise)\r\n\\end{cases}\r\n<\/code><\/pre>\n<p>\u9019\u88ab\u8868\u793a\u70ba\u3002<\/p>\n<h4>\u5f53\u5c1d\u8bd5\u63d2\u5165\u5355\u5143\u683c\u65f6\uff0c\u5e94\u5982\u4f55\u8fdb\u884c\u8bc4\u4f30\uff1f<\/h4>\n<p>\u771f\u6b63\u7684\u5730\u6839\u636e\u610f\u601d\u7528\u4e2d\u6587\u7ffb\u8bd1\u8fd9\u6bb5\u8bdd\uff1a\u5f53\u5c1d\u8bd5\u63d2\u5165\u4e00\u4e2a\u5355\u5143\u683c\u65f6\uff0c\u82e5\u6876\u4e2d\u5df2\u6709$n$\u4e2a\u5355\u5143\u683c\uff0c\u5219\u5224\u65ad\u80fd\u5426\u5c06\u5355\u5143\u683c\u63d2\u5165\u6876\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code>TAT_{n+1} - (\\tau + T) \\geq t_a\r\n<\/code><\/pre>\n<p>\u6211\u4eec\u4f1a\u8fdb\u884c\u8bc4\u4f30\u3002\u5c06\u5176\u6574\u7406\u4e00\u4e0b\uff0c<\/p>\n<pre class=\"post-pre\"><code>TAT_{n} - \\tau \\geq t_a\r\n<\/code><\/pre>\n<p>\u90bb\u5c45\u5c31\u4f4f\u5728\u65c1\u8fb9\u3002<\/p>\n<p>\u5728GCRA\u4e2d\uff0c\u4f7f\u7528\u5230TAT\u6765\u7b80\u5355\u5730\u8868\u793a\u4e86Leaky bucket\u4e2d\u7684\u6ef4\u6c34\u8fc7\u7a0b\u3002<\/p>\n<h2>\u4f5c\u4e3a\u901f\u5ea6\u63a7\u5236\u7684\u529f\u80fd<\/h2>\n<p>\u6211\u4eec\u5c06\u8003\u8651\u4f7f\u7528Redis\u4ee5\u4f7f\u5176\u80fd\u591f\u5728\u591a\u4e2a\u670d\u52a1\u4e2d\u5171\u4eab\u5229\u7528\u3002<\/p>\n<h3>\u5728GCRA\u4e2d\u9700\u8981\u4f7f\u7528\u7684Redis\u547d\u4ee4<\/h3>\n<p>GCRA\u53ef\u4ee5\u901a\u8fc7\u8f6f\u4ef6\u65b9\u5f0f\u5c06TAT\u6c38\u4e45\u5316\uff0c\u5e76\u5728TAT\u7684\u65f6\u523b\u5230\u671f\u6765\u5b9e\u73b0\uff08\u5176\u4e2d\uff0cta\u662f\u901f\u7387\u9650\u5236\u65f6\u786e\u5b9a\u7684\uff0c\u03c4\u548cT\u662f\u7531\u901f\u7387\u9650\u5236\u7cfb\u7edf\u51b3\u5b9a\u7684\uff09\u3002<\/p>\n<p>\u5982\u679c\u60f3\u8981\u4ece\u591a\u4e2a\u670d\u52a1\u7edf\u4e00\u5b9e\u65bd\u901f\u7387\u9650\u5236\uff0c\u53ef\u4ee5\u4f7f\u7528Redis\u7b49\u5de5\u5177\uff0c\u5728\u4e0d\u540c\u670d\u52a1\u4e4b\u95f4\u5171\u4eab\u8fd9\u4e2a$TAT$\u3002<\/p>\n<p>\u8fd9\u6b21\u7b97\u6cd5\u4e2d\u4f7f\u7528\u7684Redis\u547d\u4ee4\u662f\uff0c<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">SET<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">EXPIRE<\/ul>\n<p>\u8fd9\u53ea\u6709\u4e24\u4e2a\u9009\u9879\uff0c\u975e\u5e38\u7b80\u5355\u5bf9\u5427\u3002<br \/>\n(\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0c\u867d\u7136\u6210\u672c\u76f8\u540c\uff0c\u4f46\u4f7f\u7528SETEX\u547d\u4ee4\u53ef\u4ee5\u4e00\u6b21\u6027\u8bbe\u7f6e\u591a\u4e2a\u914d\u7f6e\u3002)<\/p>\n<p>\u5c3d\u7ba1\u8fd9\u4e2a\u7b97\u6cd5\u5f88\u7b80\u5355\uff0c\u6211\u4e2a\u4eba\u5b9e\u73b0\u4e86\u5b83\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">github.com\/brandur\/redis-cell<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">github.com\/throttled\/throttled<\/ul>\n<p>\u6211\u4f1a\u4ecb\u7ecd\u4e24\u4e2a\u5229\u7387\u9650\u5236\u3002<\/p>\n<h3>\u4f7f\u7528brandur\/redis-cell\u5e93<\/h3>\n<p>\u5728github.com\/brandur\/redis-cell\u4e0a\u53d1\u5e03\u4e86\u4e00\u4e2a\u5229\u7528SETEX\u7684Redis\u6a21\u5757\u3002\u53ea\u9700\u5c06github.com\/brandur\/redis-cell\u4f5c\u4e3aRedis\u7684\u4e00\u4e2a\u6a21\u5757\u5f15\u5165\uff0c\u5373\u53ef\u4f7f\u7528\u8fd9\u4e2a\u529f\u80fd\u3002<\/p>\n<h4>redis-cell\u547d\u4ee4\u7684\u6dfb\u52a0\u65b9\u5f0f<\/h4>\n<p>\u4ee5\u4e0b\u662f\u5728github.com\/brandur\/redis-cell#Usage\u4e2d\u4ecb\u7ecd\u7684\u547d\u4ee4\u3002<\/p>\n<pre class=\"post-pre\"><code>CL.THROTTLE &lt;key&gt; &lt;max_burst&gt; &lt;count per period&gt; &lt;period&gt; [&lt;quantity&gt;]\r\n<\/code><\/pre>\n<h4>Redis-cell\u547d\u4ee4\u4e0eGCRA\u76f8\u5173<\/h4>\n<pre class=\"post-pre\"><code>CL.THROTTLE user123 15 30 60 1\r\n               \u25b2     \u25b2  \u25b2  \u25b2 \u25b2\r\n               |     |  |  | \u2514\u2500\u2500\u2500\u2500\u2500 apply 1 token (default if omitted)\r\n               |     |  \u2514\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500 30 tokens \/ 60 seconds\r\n               |     \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 15 max_burst\r\n               \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 key \"user123\"\r\n<\/code><\/pre>\n<p>\u521b\u5efa\u4e00\u4e2a\u540d\u4e3auser123\u7684\u6876\uff0c\u6700\u5927\u5bb9\u91cf\u4e3a15\u4e2a\u5355\u5143\u683c\u3002<br \/>\n\u5982\u679c\u6211\u4eec\u5c06&#8221;\u6267\u884c\u547d\u4ee4&#8221;\u8fd9\u4e2a\u52a8\u4f5c\u89e3\u91ca\u4e3a&#8221;\u5411\u6876\u4e2d\u63d2\u5165\u4e00\u4e2a\u5355\u5143\u683c&#8221;\uff0c\u90a3\u4e48<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u633f\u5165\u3055\u308c\u308b\u30bb\u30eb\u6570<\/ul>\n<\/li>\n<\/ul>\n<p>1<\/p>\n<p>$\\tau$<\/p>\n<p>15 * T<\/p>\n<p>$T$<\/p>\n<p>60\/30<\/p>\n<p>$\\tau + T$<\/p>\n<p>(15 + 1) * T<\/p>\n<p>$t_a$<\/p>\n<p>\u30b3\u30de\u30f3\u30c9\u3092\u53e9\u3044\u305f\u6642\u523b<\/p>\n<p>\u4e0e\u6b64\u6709\u5173\u3002<\/p>\n<h4>redis-cell\u7684\u54cd\u5e94<\/h4>\n<p>\u5982\u679c\u8003\u8651\u5c06\u5176\u7528\u4f5cAPI\u8bf7\u6c42\u7684\u901f\u7387\u9650\u5236\u65f6\uff0c<\/p>\n<pre class=\"post-pre\"><code>127.0.0.1:6379&gt; CL.THROTTLE user123 15 30 60\r\n1) (integer) 0\r\n2) (integer) 16\r\n3) (integer) 15\r\n4) (integer) -1\r\n5) (integer) 2\r\n<\/code><\/pre>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>0\uff1a\u672a\u88ab\u963b\u6b62<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>1\uff1a\u5df2\u88ab\u963b\u6b62<\/ol>\n<\/li>\n<\/ol>\n<p>\u963b\u6b62\u7684\u4e0a\u9650\u503c+ 1<\/p>\n<p>\u5e38\u89c1\u7684X-RateLimit-Limit\u503c<\/p>\n<p>\u5269\u4f59\u963b\u6b62\u503c<\/p>\n<p>\u5e38\u89c1\u7684X-RateLimit-Remaining\u503c<\/p>\n<p>\u7528\u6237\u9700\u8981\u7b49\u5f85\u91cd\u65b0\u53d1\u9001\u8bf7\u6c42\u7684\u79d2\u6570[\u79d2]<\/p>\n<p>\u5e38\u89c1\u7684\u91cd\u8bd5\u65f6\u95f4\u503c<\/p>\n<p>\u5728\u88ab\u5141\u8bb8\u671f\u95f4\u4e3a-1<\/p>\n<p>\u8ddd\u79bb\u91cd\u7f6e\u4e0a\u9650\u503c\u7684\u79d2\u6570[\u79d2]<\/p>\n<p>\u5e38\u89c1\u7684X-RateLimit-Reset\u503c<\/p>\n<p>\u770b\u8d77\u6765\u597d\u50cf\u53ef\u4ee5\u8fd9\u6837\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\u53ea\u9700\u8981\u5728\u5404\u81ea\u7684\u7a0b\u5e8f\u4e2d\u51c6\u5907\u597dRedis\u5ba2\u6237\u7aef\uff0c\u5e76\u6267\u884c\u76f8\u5e94\u7684\u547d\u4ee4\u5373\u53ef\u3002<\/p>\n<h3>\u88ab\u9650\u5236\/\u88ab\u9650\u5236\u7684\u4f7f\u7528<\/h3>\n<p>github.com\/throttled\/throttled\u4e5f\u4f5c\u4e3aGolang\u5305\u53d1\u5e03\u4e86\u3002\u5b83\u4f5c\u4e3a\u4e00\u4e2a\u5b58\u50a8\u5668\uff0c\u53ef\u4ee5\u5bf9\u8bf7\u6c42\u8fdb\u884c\u9650\u5236\u548c\u8c03\u5ea6\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">goredisstore<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">memstore<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">redigostore<\/ul>\n<p>\u7531\u4e8e\u652f\u6301\u8fd9\u4e00\u70b9\uff0c\u4f3c\u4e4e\u53ef\u4ee5\u7075\u6d3b\u4f7f\u7528\u3002<\/p>\n<h4>\u4f7f\u7528throttled\u7684\u7a0b\u5e8f\u793a\u4f8b<\/h4>\n<p>github.com\/brandur\/redis-cell\u3068\u540c\u7b49\u306e\u6a5f\u80fd\u3092\u6301\u3063\u3066\u3044\u308b\u306e\u3067\u4e00\u4f8b\u3067\u7d39\u4ecb\u3059\u308b\u306e\u307f\u3068\u3057\u307e\u3059\u3002API\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30ec\u30fc\u30c8\u5236\u9650\u3059\u308b\u306e\u3067\u3042\u308c\u3070\u3001\u3068\u3063\u3066\u3082\u7c21\u5358\u306b\u5c0e\u5165\u3067\u304d\u307e\u3059\u306d\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">mux<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">NewServeMux<\/span><span class=\"p\">()<\/span>\r\n<span class=\"n\">mux<\/span><span class=\"o\">.<\/span><span class=\"n\">HandleFunc<\/span><span class=\"p\">(<\/span><span class=\"s\">\"\/\"<\/span><span class=\"p\">,<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">w<\/span> <span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">ResponseWriter<\/span><span class=\"p\">,<\/span> <span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">Request<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">w<\/span><span class=\"o\">.<\/span><span class=\"n\">WriteHeader<\/span><span class=\"p\">(<\/span><span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">StatusOK<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Fprintf<\/span><span class=\"p\">(<\/span><span class=\"n\">w<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"Hello World\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">})<\/span>\r\n\r\n<span class=\"n\">store<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">memstore<\/span><span class=\"o\">.<\/span><span class=\"n\">New<\/span><span class=\"p\">(<\/span><span class=\"m\">65536<\/span><span class=\"p\">)<\/span>\r\n<span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">log<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"n\">rateLimiter<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">throttled<\/span><span class=\"o\">.<\/span><span class=\"n\">NewGCRARateLimiter<\/span><span class=\"p\">(<\/span><span class=\"n\">store<\/span><span class=\"p\">,<\/span> <span class=\"n\">throttled<\/span><span class=\"o\">.<\/span><span class=\"n\">RateQuota<\/span><span class=\"p\">{<\/span><span class=\"n\">MaxRate<\/span><span class=\"o\">:<\/span> <span class=\"n\">throttled<\/span><span class=\"o\">.<\/span><span class=\"n\">PerMin<\/span><span class=\"p\">(<\/span><span class=\"m\">30<\/span><span class=\"p\">),<\/span> <span class=\"n\">MaxBurst<\/span><span class=\"o\">:<\/span> <span class=\"m\">15<\/span><span class=\"p\">})<\/span>\r\n<span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">log<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/ Custom: func(r *http.Request) string { ... } \u306b\u3088\u308a\u597d\u304d\u306a\u30ad\u30fc\u3092\u8a2d\u5b9a\u53ef\u80fd<\/span>\r\n<span class=\"n\">varyBy<\/span> <span class=\"o\">:=<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">throttled<\/span><span class=\"o\">.<\/span><span class=\"n\">VaryBy<\/span><span class=\"p\">{<\/span><span class=\"n\">Path<\/span><span class=\"o\">:<\/span> <span class=\"no\">true<\/span><span class=\"p\">}<\/span>\r\n\r\n<span class=\"n\">httpRateLimiter<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">throttled<\/span><span class=\"o\">.<\/span><span class=\"n\">HTTPRateLimiter<\/span><span class=\"p\">{<\/span>\r\n    <span class=\"n\">RateLimiter<\/span><span class=\"o\">:<\/span> <span class=\"n\">rateLimiter<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">VaryBy<\/span><span class=\"o\">:<\/span>      <span class=\"n\">varyBy<\/span><span class=\"p\">,<\/span> \r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">ListenAndServe<\/span><span class=\"p\">(<\/span><span class=\"s\">\":3000\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">httpRateLimiter<\/span><span class=\"o\">.<\/span><span class=\"n\">RateLimit<\/span><span class=\"p\">(<\/span><span class=\"n\">mux<\/span><span class=\"p\">))<\/span>\r\n<\/code><\/pre>\n<h2>?\u6700\u540e<\/h2>\n<p>GCRA\u662f\u4e00\u79cd\u9ad8\u901f\u4e14\u7b80\u5355\u7684\u7b97\u6cd5\uff0c\u63d0\u4f9b\u4e86\u7cbe\u7ec6\u7684\u901f\u7387\u9650\u5236\u3002\u901a\u8fc7\u4f7f\u7528github.com\/brandur\/redis-cell\u6216github.com\/throttled\/throttled\u7b49\u5de5\u5177\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u5c06\u901f\u7387\u9650\u5236\u529f\u80fd\u6dfb\u52a0\u5230WebAPI\u4e2d\u3002<\/p>\n<p>\u6c47\u7387\u9650\u5236<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u6709\u9650\u306e\u30ea\u30bd\u30fc\u30b9\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u6291\u5236\u3059\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30d1\u30b9\u30ef\u30fc\u30c9\u8a66\u884c\u56de\u6570\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30ec\u30fc\u30c8\u5236\u9650\u306e\u89e3\u9664\u3084\u4e0a\u9650\u6570\u306e\u7de9\u548c\u306a\u3069\u306e\u30de\u30cd\u30bf\u30a4\u30ba<\/ul>\n<p>\u5982\u679c\u60a8\u6709\u8fd9\u6837\u7684\u76ee\u7684\uff0c\u8bf7\u4e00\u5b9a\u8003\u8651\u4f7f\u7528GCRA\uff0c\u56e0\u4e3a\u5b83\u662f\u53ef\u7528\u7684\u8981\u7d20\u3002<\/p>\n<p>\u636e\u8bf4\u660e\u5929 @hunter9x \u4f1a\u5199\u70b9\u4ec0\u4e48\uff01\u656c\u8bf7\u671f\u5f85\uff01<\/p>\n<h2>? \u4ec5\u9700\u8981\u4e00\u79cd\u9009\u62e9\uff0c\u539f\u6587\u7684\u4e2d\u6587\u91ca\u4e49\u5982\u4e0b\uff1a<\/h2>\n<p>? \u53c2\u8003 -&gt; \u4ee5&#8230;&#8230;\u4f5c\u4e3a\u53c2\u8003<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Rate Limiting, Cells, and GCRA<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Generic cell rate algorithm &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">brandur\/redis-cell: A Redis module that provides rate limiting in Redis as a single command.<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">throttled\/throttled: Package throttled implements rate limiting access to resources such as HTTP endpoints.<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u662f\u5bcc\u58eb\u901a\u4e91\u6280\u672f2019\u5e74\u201c\u964d\u4e34\u8282\u65e5\u5386\u201d\u7684\u7b2c21\u5929\u6587\u7ae0\u3002 \u7b2c20\u5929\u662f\u7531@foobaron\u5148\u751f\u5f00\u59cb\u63d0\u4f9b\u201c\u8fde\u63a5\u79c1 [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-34344","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u7528GCRA\uff08\u901a\u7528\u8702\u7a9d\u901f\u7387\u7b97\u6cd5\uff09\u5bf9API\u8bf7\u6c42\u8fdb\u884c\u901f\u7387\u9650\u5236\u7684\u8ba8\u8bba - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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