{"id":809,"date":"2022-11-17T11:57:57","date_gmt":"2022-11-17T03:57:57","guid":{"rendered":"https:\/\/frogvps.com\/?p=809"},"modified":"2022-11-17T11:59:04","modified_gmt":"2022-11-17T03:59:04","slug":"haproxy%e8%b0%83%e5%ba%a6%e7%ae%97%e6%b3%95%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/frogvps.com\/?p=809","title":{"rendered":"HAProxy\u8c03\u5ea6\u7b97\u6cd5\u8be6\u89e3"},"content":{"rendered":"\n<p>HAProxy\u901a\u8fc7\u56fa\u5b9a\u53c2\u6570 balance \u6307\u660e\u5bf9\u540e\u7aef\u670d\u52a1\u5668\u7684\u8c03\u5ea6\u7b97\u6cd5\uff0c\u8be5\u53c2\u6570\u53ef\u4ee5\u914d\u7f6e\u5728defaults\u3001listen\u3001backend\u9009\u9879\u4e2d\u3002HAProxy\u7684\u8c03\u5ea6\u7b97\u6cd5\u5206\u4e3a\u9759\u6001\u548c\u52a8\u6001\u8c03\u5ea6\u7b97\u6cd5\uff0c\u4f46\u662f\u6709\u4e9b\u7b97\u6cd5\u53ef\u4ee5\u6839\u636e\u53c2\u6570\u5728\u9759\u6001\u548c\u52a8\u6001\u7b97\u6cd5\u4e2d\u76f8\u4e92\u8f6c\u6362\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u9759\u6001\u7b97\u6cd5<\/h2>\n\n\n\n<p>\u9759\u6001\u7b97\u6cd5\uff1a\u6309\u7167\u4e8b\u5148\u5b9a\u4e49\u597d\u7684\u89c4\u5219\u8f6e\u8be2\u516c\u5e73\u8c03\u5ea6\uff0c\u4e0d\u5173\u5fc3\u540e\u7aef\u670d\u52a1\u5668\u7684\u5f53\u524d\u8d1f\u8f7d\u3001\u8fde\u63a5\u6570\u548c\u54cd\u5e94\u901f\u5ea6\u7b49\uff0c\u4e14\u65e0\u6cd5\u5b9e\u65f6\u4fee\u6539\u6743\u91cd\uff08\u53ea\u80fd\u4e3a0\u548c1\uff0c\u4e0d\u652f\u6301\u5176\u5b83\u503c\uff09\uff0c\u53ea\u80fd\u9760\u91cd\u542fHAProxy\u751f\u6548\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>static-rr<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>balance static-rr<\/code><\/pre>\n\n\n\n<p>\u57fa\u4e8e\u6743\u91cd\u7684\u8f6e\u8be2\u8c03\u5ea6\uff0c\u4e0d\u652f\u6301\u8fd0\u884c\u65f6\u5229\u7528socat\u8fdb\u884c\u6743\u91cd\u7684\u52a8\u6001\u8c03\u6574\uff08\u53ea\u652f\u63010\u548c1,\u4e0d\u652f\u6301\u5176\u5b83\u503c\uff09\u53ca\u540e\u7aef\u670d\u52a1\u5668\u6162\u542f\u52a8\uff0c\u5176\u540e\u7aef\u4e3b\u673a\u6570\u91cf\u6ca1\u6709\u9650\u5236\uff0c\u76f8\u5f53\u4e8eLVS\u4e2d\u7684 wrr\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li><strong>first<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>balance first<\/code><\/pre>\n\n\n\n<p>\u6839\u636e\u670d\u52a1\u5668\u5728\u5217\u8868\u4e2d\u7684\u4f4d\u7f6e\uff0c\u81ea\u4e0a\u800c\u4e0b\u8fdb\u884c\u8c03\u5ea6\uff0c\u4f46\u662f\u5176\u53ea\u4f1a\u5f53\u7b2c\u4e00\u53f0\u670d\u52a1\u5668\u7684\u8fde\u63a5\u6570\u8fbe\u5230\u4e0a\u9650\uff0c\u65b0\u8bf7\u6c42\u624d\u4f1a\u5206\u914d\u7ed9\u4e0b\u4e00\u53f0\u670d\u52a1\uff0c\u56e0\u6b64\u4f1a\u5ffd\u7565\u670d\u52a1\u5668\u7684\u6743\u91cd\u8bbe\u7f6e\uff0c\u6b64\u65b9\u5f0f\u4f7f\u7528\u8f83\u5c11\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u52a8\u6001\u7b97\u6cd5<\/h2>\n\n\n\n<p>\u52a8\u6001\u7b97\u6cd5\uff1a\u57fa\u4e8e\u540e\u7aef\u670d\u52a1\u5668\u72b6\u6001\u8fdb\u884c\u8c03\u5ea6\u9002\u5f53\u8c03\u6574\uff0c\u65b0\u8bf7\u6c42\u5c06\u4f18\u5148\u8c03\u5ea6\u81f3\u5f53\u524d\u8d1f\u8f7d\u8f83\u4f4e\u7684\u670d\u52a1\u5668\uff0c\u4e14\u6743\u91cd\u53ef\u4ee5\u5728haproxy\u8fd0\u884c\u65f6\u52a8\u6001\u8c03\u6574\u65e0\u9700\u91cd\u542f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>roundrobin<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>balance roundrobin<\/code><\/pre>\n\n\n\n<p>roundrobin\uff1a\u57fa\u4e8e\u6743\u91cd\u7684\u8f6e\u8be2\u52a8\u6001\u8c03\u5ea6\u7b97\u6cd5\uff0c\u652f\u6301\u6743\u91cd\u7684\u8fd0\u884c\u65f6\u8c03\u6574\uff0c\u4e0d\u540c\u4e8elvs\u4e2d\u7684rr\u8f6e\u8bad\u6a21\u5f0f\uff0cHAProxy\u4e2d\u7684roundrobin\u652f\u6301\u6162\u542f\u52a8(\u65b0\u52a0\u7684\u670d\u52a1\u5668\u4f1a\u9010\u6e10\u589e\u52a0\u8f6c\u53d1\u6570)\uff0c\u5176\u6bcf\u4e2a\u540e\u7aefbackend\u4e2d\u6700\u591a\u652f\u63014095\u4e2areal server\uff0c\u652f\u6301\u5bf9real server\u6743\u91cd\u52a8\u6001\u8c03\u6574\uff0croundrobin\u4e3a\u9ed8\u8ba4\u8c03\u5ea6\u7b97\u6cd5,\u6b64\u7b97\u6cd5\u4f7f\u7528\u5e7f\u6cdb\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li><strong>leastconn<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>balance leastconn<\/code><\/pre>\n\n\n\n<p>leastconn\u52a0\u6743\u7684\u6700\u5c11\u8fde\u63a5\u7684\u52a8\u6001\uff0c\u652f\u6301\u6743\u91cd\u7684\u8fd0\u884c\u65f6\u8c03\u6574\u548c\u6162\u542f\u52a8\uff0c\u5373:\u6839\u636e\u5f53\u524d\u8fde\u63a5\u6700\u5c11\u7684\u540e\u7aef\u670d\u52a1\u5668\u800c\u975e\u6743\u91cd\u8fdb\u884c\u4f18\u5148\u8c03\u5ea6(\u65b0\u5ba2\u6237\u7aef\u8fde\u63a5)\uff0c\u6bd4\u8f83\u9002\u5408\u957f\u8fde\u63a5\u7684\u573a\u666f\u4f7f\u7528\uff0c\u6bd4\u5982\uff1aMySQL\u7b49\u573a\u666f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li><strong>random<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>balance random<\/code><\/pre>\n\n\n\n<p>\u57281.9\u7248\u672c\u5f00\u59cb\u589e\u52a0 random\u7684\u8d1f\u8f7d\u5e73\u8861\u7b97\u6cd5\uff0c\u5176\u57fa\u4e8e\u968f\u673a\u6570\u4f5c\u4e3a\u4e00\u81f4\u6027hash\u7684key\uff0c\u968f\u673a\u8d1f\u8f7d\u5e73\u8861\u5bf9\u4e8e\u5927\u578b\u670d\u52a1\u5668\u573a\u6216\u7ecf\u5e38\u6dfb\u52a0\u6216\u5220\u9664\u670d\u52a1\u5668\u975e\u5e38\u6709\u7528\uff0c\u652f\u6301weight\u7684\u52a8\u6001\u8c03\u6574\uff0cweight\u8f83\u5927\u7684\u4e3b\u673a\u6709\u66f4\u5927\u6982\u7387\u83b7\u53d6\u65b0\u8bf7\u6c42\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5176\u4ed6\u7b97\u6cd5<\/h2>\n\n\n\n<p>\u5176\u5b83\u7b97\u6cd5\u5373\u53ef\u4f5c\u4e3a\u9759\u6001\u7b97\u6cd5\uff0c\u53c8\u53ef\u4ee5\u901a\u8fc7\u9009\u9879\u6210\u4e3a\u52a8\u6001\u7b97\u6cd5\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>source<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>balance source<\/code><\/pre>\n\n\n\n<p>\u6e90\u5730\u5740hash\uff0c\u57fa\u4e8e\u7528\u6237\u6e90\u5730\u5740hash\u5e76\u5c06\u8bf7\u6c42\u8f6c\u53d1\u5230\u540e\u7aef\u670d\u52a1\u5668\uff0c\u540e\u7eed\u540c\u4e00\u4e2a\u6e90\u5730\u5740\u8bf7\u6c42\u5c06\u88ab\u8f6c\u53d1\u81f3\u540c\u4e00\u4e2a\u540e\u7aefweb\u670d\u52a1\u5668\u3002\u6b64\u65b9\u5f0f\u5f53\u540e\u7aef\u670d\u52a1\u5668\u6570\u636e\u91cf\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u4f1a\u5bfc\u81f4\u5f88\u591a\u7528\u6237\u7684\u8bf7\u6c42\u8f6c\u53d1\u81f3\u65b0\u7684\u540e\u7aef\u670d\u52a1\u5668\uff0c\u9ed8\u8ba4\u4e3a\u9759\u6001\u65b9\u5f0f\uff0c\u4f46\u662f\u53ef\u4ee5\u901a\u8fc7hash-type\u652f\u6301\u7684\u9009\u9879\u66f4\u6539\u3002<\/p>\n\n\n\n<p>\u8fd9\u4e2a\u7b97\u6cd5\u4e00\u822c\u662f\u5728\u4e0d\u63d2\u5165Cookie\u7684TCP\u6a21\u5f0f\u4e0b\u4f7f\u7528\uff0c\u4e5f\u53ef\u7ed9\u62d2\u7edd\u4f1a\u8bddcookie\u7684\u5ba2\u6237\u63d0\u4f9b\u6700\u597d\u7684\u4f1a\u8bdd\u7c98\u6027\uff0c\u9002\u7528\u4e8esession\u4f1a\u8bdd\u4fdd\u6301\u4f46\u4e0d\u652f\u6301cookie\u548c\u7f13\u5b58\u7684\u573a\u666f\u3002<\/p>\n\n\n\n<p>\u6e90\u5730\u5740\u6709\u4e24\u79cd\u8f6c\u53d1\u5ba2\u6237\u7aef\u8bf7\u6c42\u5230\u540e\u7aef\u670d\u52a1\u5668\u7684\u670d\u52a1\u5668\u9009\u53d6\u8ba1\u7b97\u65b9\u5f0f\uff0c\u5206\u522b\u662f\u53d6\u6a21\u6cd5\u548c\u4e00\u81f4\u6027hash\u3002<\/p>\n\n\n\n<p><strong>map-base \u53d6\u6a21\u6cd5<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hash-type map-based<\/code><\/pre>\n\n\n\n<p>\u53d6\u6a21\u6cd5\uff0c\u5bf9source\u5730\u5740\u8fdb\u884chash\u8ba1\u7b97\uff0c\u518d\u57fa\u4e8e\u670d\u52a1\u5668\u603b\u6743\u91cd\u7684\u53d6\u6a21\uff0c\u6700\u7ec8\u7ed3\u679c\u51b3\u5b9a\u5c06\u6b64\u8bf7\u6c42\u8f6c\u53d1\u81f3\u5bf9\u5e94\u7684\u540e\u7aef\u670d\u52a1\u5668\u3002\u6b64\u65b9\u6cd5\u662f\u9759\u6001\u7684\uff0c\u5373\u4e0d\u652f\u6301\u5728\u7ebf\u8c03\u6574\u6743\u91cd\uff0c\u4e0d\u652f\u6301\u6162\u542f\u52a8\uff0c\u53ef\u5b9e\u73b0\u5bf9\u540e\u7aef\u670d\u52a1\u5668\u5747\u8861\u8c03\u5ea6\u3002\u7f3a\u70b9\u662f\u5f53\u670d\u52a1\u5668\u7684\u603b\u6743\u91cd\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u5373\u6709\u670d\u52a1\u5668\u4e0a\u7ebf\u6216\u4e0b\u7ebf\uff0c\u90fd\u4f1a\u56e0\u603b\u6743\u91cd\u53d1\u751f\u53d8\u5316\u800c\u5bfc\u81f4\u8c03\u5ea6\u7ed3\u679c\u6574\u4f53\u6539\u53d8\uff0c\u53d6\u6a21\u6cd5\u662f\u9ed8\u8ba4\u7b97\u6cd5\u4e0d\u9700\u8981\u989d\u5916\u914d\u7f6e\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u6240\u8c13\u53d6\u6a21\u8fd0\u7b97\uff0c\u5c31\u662f\u8ba1\u7b97\u4e24\u4e2a\u6570\u76f8\u9664\u4e4b\u540e\u7684\u4f59\u6570\uff0c10%7=3, 7%4=3\nmap-based\u7b97\u6cd5\uff1a\u57fa\u4e8e\u6743\u91cd\u53d6\u6a21\uff0chash(source_ip)%\u6240\u6709\u540e\u7aef\u670d\u52a1\u5668\u76f8\u52a0\u7684\u603b\u6743\u91cd<\/code><\/pre>\n\n\n\n<p><strong>\u4e00\u81f4\u6027hash<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hash-type consistent<\/code><\/pre>\n\n\n\n<p>\u4e00\u81f4\u6027\u54c8\u5e0c\uff0c\u5f53\u670d\u52a1\u5668\u7684\u603b\u6743\u91cd\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u5bf9\u8c03\u5ea6\u7ed3\u679c\u5f71\u54cd\u662f\u5c40\u90e8\u7684\uff0c\u4e0d\u4f1a\u5f15\u8d77\u5927\u7684\u53d8\u52a8\uff0c\u8be5hash\u7b97\u6cd5\u662f\u52a8\u6001\u7684\uff0c\u652f\u6301\u4f7f\u7528 socat\u7b49\u5de5\u5177\u8fdb\u884c\u5728\u7ebf\u6743\u91cd\u8c03\u6574\uff0c\u652f\u6301\u6162\u542f\u52a8\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>1\u3001key1=hash(source_ip)%(2^32) &#91;0---4294967295]\n2\u3001keyA=hash(\u540e\u7aef\u670d\u52a1\u5668\u865a\u62dfip)%(2^32)\n3\u3001\u5c06key1\u548ckeyA\u90fd\u653e\u5728hash\u73af\u4e0a\uff0c\u5c06\u7528\u6237\u8bf7\u6c42\u8c03\u5ea6\u5230\u79bbkey1\u6700\u8fd1\u7684keyA\u5bf9\u5e94\u7684\u540e\u7aef\u670d\u52a1\u5668<\/code><\/pre>\n\n\n\n<p>hash\u73af\u504f\u659c\u95ee\u9898<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u589e\u52a0\u865a\u62df\u670d\u52a1\u5668IP\u6570\u91cf\uff0c\u6bd4\u5982\uff1a\u4e00\u4e2a\u540e\u7aef\u670d\u52a1\u5668\u6839\u636e\u6743\u91cd\u4e3a1\u751f\u62101000\u4e2a\u865a\u62dfIP\uff0c\u518dhash\u3002\u800c\u540e\u7aef\u670d\u52a1\u5668\u6743\u91cd\u4e3a2\u5219\u751f\u62102000\u7684\u865a\u62dfIP\uff0c\u518dbash,\u6700\u7ec8\u5728hash\u73af\u4e0a\u751f\u62103000\u4e2a\u8282\u70b9\uff0c\u4ece\u800c\u89e3\u51b3hash\u73af\u504f\u659c\u95ee\u9898\u3002<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"779\" height=\"343\" src=\"https:\/\/frogvps.com\/wp-content\/uploads\/2022\/11\/20221117a1.jpg\" alt=\"\" class=\"wp-image-810\" srcset=\"https:\/\/frogvps.com\/wp-content\/uploads\/2022\/11\/20221117a1.jpg 779w, https:\/\/frogvps.com\/wp-content\/uploads\/2022\/11\/20221117a1-300x132.jpg 300w, https:\/\/frogvps.com\/wp-content\/uploads\/2022\/11\/20221117a1-768x338.jpg 768w\" sizes=\"auto, (max-width: 779px) 100vw, 779px\" \/><figcaption class=\"wp-element-caption\">Hash\u5bf9\u8c61\u5230\u540e\u7aef\u670d\u52a1\u5668\u7684\u6620\u5c04\u5173\u7cfb<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"866\" height=\"342\" src=\"https:\/\/frogvps.com\/wp-content\/uploads\/2022\/11\/20221117.a2.jpg\" alt=\"\" class=\"wp-image-812\" srcset=\"https:\/\/frogvps.com\/wp-content\/uploads\/2022\/11\/20221117.a2.jpg 866w, https:\/\/frogvps.com\/wp-content\/uploads\/2022\/11\/20221117.a2-300x118.jpg 300w, https:\/\/frogvps.com\/wp-content\/uploads\/2022\/11\/20221117.a2-768x303.jpg 768w\" sizes=\"auto, (max-width: 866px) 100vw, 866px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"915\" height=\"381\" src=\"https:\/\/frogvps.com\/wp-content\/uploads\/2022\/11\/20221117a3.jpg\" alt=\"\" class=\"wp-image-813\" srcset=\"https:\/\/frogvps.com\/wp-content\/uploads\/2022\/11\/20221117a3.jpg 915w, https:\/\/frogvps.com\/wp-content\/uploads\/2022\/11\/20221117a3-300x125.jpg 300w, https:\/\/frogvps.com\/wp-content\/uploads\/2022\/11\/20221117a3-768x320.jpg 768w\" sizes=\"auto, (max-width: 915px) 100vw, 915px\" \/><figcaption class=\"wp-element-caption\">\u4e00\u81f4\u6027hash\u793a\u610f\u56fe<\/figcaption><\/figure>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li><strong>uri<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>mode http\nbalance uri<\/code><\/pre>\n\n\n\n<p>\u57fa\u4e8e\u5bf9\u7528\u6237\u8bf7\u6c42\u7684URI\u7684\u5de6\u534a\u90e8\u5206\u6216\u6574\u4e2auri\u505ahash\uff0c\u518d\u5c06hash\u7ed3\u679c\u5bf9\u603b\u6743\u91cd\u8fdb\u884c\u53d6\u6a21\u540e\uff0c\u6839\u636e\u6700\u7ec8\u7ed3\u679c\u5c06\u8bf7\u6c42\u8f6c\u53d1\u5230\u540e\u7aef\u6307\u5b9a\u670d\u52a1\u5668\uff0c\u9002\u7528\u4e8e\u540e\u7aef\u662f\u7f13\u5b58\u670d\u52a1\u5668\u573a\u666f\uff0c\u9ed8\u8ba4\u662f\u9759\u6001\u7b97\u6cd5\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7hash-type\u6307\u5b9amap-based\u548cconsistent\uff0c\u6765\u5b9a\u4e49\u4f7f\u7528\u53d6\u6a21\u6cd5\u8fd8\u662f\u4e00\u81f4\u6027hash\u3002<\/p>\n\n\n\n<p><strong>\u6ce8\u610f\uff1a\u6b64\u7b97\u6cd5\u57fa\u4e8e\u5e94\u7528\u5c42\uff0c\u6240\u4ee5\u53ea\u652f\u6301 mode http \uff0c\u4e0d\u652f\u6301 mode tcp<\/strong><\/p>\n\n\n\n<p>\u6bd4\u5982\u4e00\u4e2a\u94fe\u63a5<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;scheme&gt;:\/\/&lt;user&gt;:&lt;password&gt;@&lt;host&gt;:&lt;port&gt;\/&lt;path&gt;;&lt;params&gt;?&lt;query&gt;#&lt;frag&gt;<\/code><\/pre>\n\n\n\n<p>URI\u662f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/&lt;path&gt;;&lt;params&gt;?&lt;query&gt;#&lt;frag&gt;<\/code><\/pre>\n\n\n\n<p>\u5de6\u534a\u90e8\u5206\u662f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/&lt;path&gt;;&lt;params&gt;<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li><strong>url_param<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>mode http\nbalance url_param userid<\/code><\/pre>\n\n\n\n<p>\u5bf9\u7528\u6237\u8bf7\u6c42\u7684url\u4e2d\u7684 params \u90e8\u5206\u4e2d\u7684\u4e00\u4e2a\u53c2\u6570key\u5bf9\u5e94\u7684value\u503c\u4f5chash\u8ba1\u7b97\uff0c\u5e76\u7531\u670d\u52a1\u5668\u603b\u6743\u91cd\u76f8\u9664\u4ee5\u540e\u6d3e\u53d1\u81f3\u67d0\u6311\u51fa\u7684\u670d\u52a1\u5668\uff1b\u901a\u5e38\u7528\u4e8e\u8ffd\u8e2a\u7528\u6237\uff0c\u4ee5\u786e\u4fdd\u6765\u81ea\u540c\u4e00\u4e2a\u7528\u6237\u7684\u8bf7\u6c42\u59cb\u7ec8\u53d1\u5f80\u540c\u4e00\u4e2areal server\uff0c\u5982\u679c\u6ca1\u6709key\uff0c\u5c06\u6309roundrobin\u7b97\u6cd5\u3002<\/p>\n\n\n\n<p>\u5047\u8bbe<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>url = https:\/\/www.xxx.com\/index.php?key=value<\/code><\/pre>\n\n\n\n<p>\u90a3\u4e48<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>host = \"www.xxx.com\"\nurl_param = \"key=value\"<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li><strong>hdr<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>balance hdr(User-Agent)<\/code><\/pre>\n\n\n\n<p>\u9488\u5bf9\u7528\u6237\u6bcf\u4e2ahttp\u5934\u90e8(header)\u8bf7\u6c42\u4e2d\u7684\u6307\u5b9a\u4fe1\u606f\u505ahash\uff0c\u6b64\u5904\u7531 name \u6307\u5b9a\u7684http\u9996\u90e8\u5c06\u4f1a\u88ab\u53d6\u51fa\u5e76\u505ahash\u8ba1\u7b97\uff0c\u7136\u540e\u7531\u670d\u52a1\u5668\u603b\u6743\u91cd\u53d6\u6a21\u4ee5\u540e\u6d3e\u53d1\u81f3\u67d0\u6311\u51fa\u7684\u670d\u52a1\u5668\uff0c\u5982\u679c\u65e0\u6709\u6548\u503c\uff0c\u5219\u4f1a\u4f7f\u7528\u9ed8\u8ba4\u7684\u8f6e\u8be2\u8c03\u5ea6\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li><strong>rdp-cookie<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>balance rdp-cookie\nmode tcp<\/code><\/pre>\n\n\n\n<p>rdp-cookie\u5bf9windows\u8fdc\u7a0b\u684c\u9762\u7684\u8d1f\u8f7d\uff0c\u4f7f\u7528cookie\u4fdd\u6301\u4f1a\u8bdd\uff0c\u9ed8\u8ba4\u662f\u9759\u6001\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">SOCAT\u5de5\u5177<\/h2>\n\n\n\n<p>\u5bf9\u670d\u52a1\u5668\u52a8\u6001\u6743\u91cd\u548c\u5176\u5b83\u72b6\u6001\u53ef\u4ee5\u5229\u7528 socat\u5de5\u5177\u8fdb\u884c\u8c03\u6574\uff0cSocat \u662f Linux \u4e0b\u7684\u4e00\u4e2a\u591a\u529f\u80fd\u7684\u7f51\u7edc\u5de5\u5177\uff0c\u540d\u5b57\u6765\u7531\u662fSocket CAT\uff0c\u76f8\u5f53\u4e8enetCAT\u7684\u589e\u5f3a\u7248\u3002Socat \u7684\u4e3b\u8981\u7279\u70b9\u5c31\u662f\u5728\u4e24\u4e2a\u6570\u636e\u6d41\u4e4b\u95f4\u5efa\u7acb\u53cc\u5411\u901a\u9053\uff0c\u4e14\u652f\u6301\u4f17\u591a\u534f\u8bae\u548c\u94fe\u63a5\u65b9\u5f0f\u3002\u5982 IP\u3001TCP\u3001 UDP\u3001IPv6\u3001Socket\u6587\u4ef6\u7b49\u3002<\/p>\n\n\n\n<p>\u5de5\u5177\u5b89\u88c5<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>yum -y install socat<\/code><\/pre>\n\n\n\n<p>\u67e5\u770b\u5e2e\u52a9<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>socat -h\necho \"help\" | socat stdio \/var\/lib\/haproxy\/haproxy.sock<\/code><\/pre>\n\n\n\n<p>\u67e5\u770bhaproxy\u7248\u672c\u4fe1\u606f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>echo \"show info\" | socat stdio \/var\/lib\/haproxy\/haproxy.sock<\/code><\/pre>\n\n\n\n<p>\u67e5\u770b\u540e\u7aef\u670d\u52a1\u5668\u5217\u8868<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>echo \"show backend\" | socat stdio \/var\/lib\/haproxy\/haproxy.sock<\/code><\/pre>\n\n\n\n<p>\u67e5\u770b\u540e\u7aef\u670d\u52a1\u5668\u7684\u6743\u91cd<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>echo \"get weight web_port\/web1\" | socat stdio \/var\/lib\/haproxy\/haproxy.sock\necho \"get weight web_port\/web2\" | socat stdio \/var\/lib\/haproxy\/haproxy.sock<\/code><\/pre>\n\n\n\n<p>\u4fee\u6539\u540e\u7aef\u670d\u52a1\u5668\u7684\u6743\u91cd<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>echo \"set weight web_port\/web2 2\" | socat stdio \/var\/lib\/haproxy\/haproxy.sock<\/code><\/pre>\n\n\n\n<p>\u4e0a\u7ebf\u548c\u4e0b\u7ebf\u540e\u7aef\u670d\u52a1\u5668\u811a\u672c<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#!\/bin\/bash\n. \/etc\/init.d\/functions\ncase $1 in\nup)\n  echo \"set weight web_port\/$2 1\" | socat stdio \/var\/lib\/haproxy\/haproxy.sock\n  &#91; $? -eq 0 ] &amp;&amp; action \"$2 is up\"\n  ;;\ndown)\n  echo \"set weight web_port\/$2 0\" | socat stdio \/var\/lib\/haproxy\/haproxy.sock\n  &#91; $? -eq 0 ] &amp;&amp; action \"$2 is down\"\n  ;;\n*)\n  echo \"Usage: `basename $0` up|down IP\"\n  ;;\nesac<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"782\" height=\"177\" src=\"https:\/\/frogvps.com\/wp-content\/uploads\/2022\/11\/20221117a4.jpg\" alt=\"\" class=\"wp-image-814\" srcset=\"https:\/\/frogvps.com\/wp-content\/uploads\/2022\/11\/20221117a4.jpg 782w, https:\/\/frogvps.com\/wp-content\/uploads\/2022\/11\/20221117a4-300x68.jpg 300w, https:\/\/frogvps.com\/wp-content\/uploads\/2022\/11\/20221117a4-768x174.jpg 768w\" sizes=\"auto, (max-width: 782px) 100vw, 782px\" \/><figcaption class=\"wp-element-caption\">\u811a\u672c<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u7b97\u6cd5\u603b\u7ed3<\/h2>\n\n\n\n<p>\u9759\u6001<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>static-rr---------&gt;tcp\/http\nfirst-------------&gt;tcp\/http<\/code><\/pre>\n\n\n\n<p>\u52a8\u6001<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>roundrobin--------&gt;tcp\/http\nleastconn---------&gt;tcp\/http\nrandom------------&gt;tcp\/http<\/code><\/pre>\n\n\n\n<p>\u4ee5\u4e0b\u9759\u6001\u548c\u52a8\u6001\u53d6\u51b3\u4e8ehash_type\u662f\u5426consistent<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>source------------&gt;tcp\/http\nUri---------------&gt;http\nurl_param---------&gt;http\nhdr---------------&gt;http\nrdp-cookie--------&gt;tcp<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>HAProxy\u901a\u8fc7\u56fa\u5b9a\u53c2\u6570 balance \u6307\u660e\u5bf9\u540e\u7aef\u670d\u52a1\u5668\u7684\u8c03\u5ea6\u7b97\u6cd5\uff0c\u8be5\u53c2\u6570\u53ef\u4ee5\u914d\u7f6e\u5728defaults\u3001listen\u3001backend\u9009\u9879\u4e2d\u3002HAProxy\u7684\u8c03\u5ea6\u7b97\u6cd5\u5206\u4e3a\u9759\u6001\u548c\u52a8\u6001\u8c03\u5ea6\u7b97\u6cd5\uff0c\u4f46\u662f\u6709\u4e9b\u7b97\u6cd5\u53ef\u4ee5\u6839\u636e\u53c2\u6570\u5728\u9759\u6001\u548c\u52a8\u6001\u7b97\u6cd5\u4e2d\u76f8\u4e92\u8f6c\u6362&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[58],"topic":[],"class_list":["post-809","post","type-post","status-publish","format-standard","hentry","category-linux","tag-haproxy"],"_links":{"self":[{"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/posts\/809","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=809"}],"version-history":[{"count":3,"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/posts\/809\/revisions"}],"predecessor-version":[{"id":816,"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/posts\/809\/revisions\/816"}],"wp:attachment":[{"href":"https:\/\/frogvps.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=809"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=809"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=809"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftopic&post=809"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}