{"id":172407,"date":"2024-11-07T12:52:18","date_gmt":"2024-11-07T04:52:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/172407\/"},"modified":"2024-11-07T12:52:19","modified_gmt":"2024-11-07T04:52:19","slug":"%e7%86%94%e6%96%b7%e4%bf%9d%e8%ad%b7redis%e7%9a%84%e5%8f%af%e7%94%a8%e6%80%a7%ef%bc%88redis%e7%9a%84%e7%86%94%e6%96%b7%e6%a9%9f%e5%88%b6%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/172407\/","title":{"rendered":"\u7194\u65b7\u4fdd\u8b77Redis\u7684\u53ef\u7528\u6027\uff08redis\u7684\u7194\u65b7\u6a5f\u5236\uff09"},"content":{"rendered":"<h1 id=\"%e7%86%94%e6%96%b7%e4%bf%9d%e8%ad%b7redis%e7%9a%84%e5%8f%af%e7%94%a8%e6%80%a7%ef%bc%88redis%e7%9a%84%e7%86%94%e6%96%b7%e6%a9%9f%e5%88%b6%ef%bc%89-PjerCBFluk\">\u7194\u65b7\u4fdd\u8b77Redis\u7684\u53ef\u7528\u6027\uff08Redis\u7684\u7194\u65b7\u6a5f\u5236\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5eab\u7b49\u5834\u666f\u3002\u7136\u800c\uff0c\u96a8\u8457\u7cfb\u7d71\u7684\u8907\u96dc\u6027\u589e\u52a0\uff0c\u5982\u4f55\u4fdd\u8b49Redis\u7684\u53ef\u7528\u6027\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002\u7194\u65b7\u6a5f\u5236\u4f5c\u70ba\u4e00\u7a2e\u6709\u6548\u7684\u4fdd\u8b77\u63aa\u65bd\uff0c\u80fd\u5920\u5728\u7cfb\u7d71\u51fa\u73fe\u6545\u969c\u6642\uff0c\u53ca\u6642\u5207\u65b7\u5c0dRedis\u7684\u8acb\u6c42\uff0c\u5f9e\u800c\u4fdd\u8b77\u6574\u9ad4\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%86%94%e6%96%b7%e6%a9%9f%e5%88%b6%ef%bc%9f-PjerCBFluk\">\u4ec0\u9ebc\u662f\u7194\u65b7\u6a5f\u5236\uff1f<\/h2>\n<p>\u7194\u65b7\u6a5f\u5236\u6e90\u65bc\u96fb\u6c23\u5de5\u7a0b\u4e2d\u7684\u7194\u65b7\u5668\u6982\u5ff5\uff0c\u4e3b\u8981\u7528\u65bc\u9632\u6b62\u904e\u8f09\u6216\u77ed\u8def\u60c5\u6cc1\u4e0b\u7684\u8a2d\u5099\u640d\u58de\u3002\u5728\u8edf\u9ad4\u67b6\u69cb\u4e2d\uff0c\u7194\u65b7\u6a5f\u5236\u7528\u65bc\u76e3\u63a7\u670d\u52d9\u7684\u5065\u5eb7\u72c0\u614b\uff0c\u7576\u6aa2\u6e2c\u5230\u67d0\u500b\u670d\u52d9\u7684\u8acb\u6c42\u5931\u6557\u7387\u8d85\u904e\u9810\u8a2d\u95be\u503c\u6642\uff0c\u7cfb\u7d71\u6703\u81ea\u52d5\u66ab\u6642\u4e2d\u65b7\u5c0d\u8a72\u670d\u52d9\u7684\u8acb\u6c42\uff0c\u907f\u514d\u9032\u4e00\u6b65\u7684\u8cc7\u6e90\u6d6a\u8cbb\u548c\u7cfb\u7d71\u5d29\u6f70\u3002<\/p>\n<h2 id=\"redis%e4%b8%ad%e7%9a%84%e7%86%94%e6%96%b7%e6%a9%9f%e5%88%b6-PjerCBFluk\">Redis\u4e2d\u7684\u7194\u65b7\u6a5f\u5236<\/h2>\n<p>\u5728Redis\u7684\u4f7f\u7528\u4e2d\uff0c\u7194\u65b7\u6a5f\u5236\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u65b9\u5f0f\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u5be6\u73fe\u65b9\u6cd5\uff1a<\/p>\n<ul>\n<li><strong>\u8d85\u6642\u8a2d\u7f6e\uff1a<\/strong>\u901a\u904e\u8a2d\u7f6e\u8acb\u6c42\u7684\u8d85\u6642\u6642\u9593\uff0c\u7576\u8acb\u6c42\u8d85\u904e\u9019\u500b\u6642\u9593\u4ecd\u672a\u8fd4\u56de\u7d50\u679c\u6642\uff0c\u7cfb\u7d71\u53ef\u4ee5\u8a8d\u70ba\u8a72\u8acb\u6c42\u5931\u6557\uff0c\u9032\u800c\u89f8\u767c\u7194\u65b7\u3002<\/li>\n<li><strong>\u5931\u6557\u7387\u76e3\u63a7\uff1a<\/strong>\u6301\u7e8c\u76e3\u63a7\u8acb\u6c42\u7684\u6210\u529f\u8207\u5931\u6557\u7387\uff0c\u7576\u5931\u6557\u7387\u8d85\u904e\u4e00\u5b9a\u6bd4\u4f8b\u6642\uff0c\u7cfb\u7d71\u81ea\u52d5\u9032\u5165\u7194\u65b7\u72c0\u614b\u3002<\/li>\n<li><strong>\u56de\u9000\u7b56\u7565\uff1a<\/strong>\u5728\u7194\u65b7\u72c0\u614b\u4e0b\uff0c\u7cfb\u7d71\u53ef\u4ee5\u8fd4\u56de\u9810\u8a2d\u7684\u6578\u64da\u6216\u932f\u8aa4\u4fe1\u606f\uff0c\u800c\u4e0d\u662f\u7e7c\u7e8c\u5617\u8a66\u8a2a\u554fRedis\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u7cfb\u7d71\u7684\u8ca0\u64d4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%86%94%e6%96%b7%e6%a9%9f%e5%88%b6%e7%9a%84%e5%af%a6%e7%8f%be%e7%a4%ba%e4%be%8b-PjerCBFluk\">\u7194\u65b7\u6a5f\u5236\u7684\u5be6\u73fe\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7194\u65b7\u6a5f\u5236\u5be6\u73fe\u793a\u4f8b\uff0c\u4f7f\u7528Python\u548cRedis\u9032\u884c\u6f14\u793a\uff1a<\/p>\n<pre><code>import redis\nimport time\n\nclass CircuitBreaker:\n    def __init__(self, failure_threshold, recovery_timeout):\n        self.failure_threshold = failure_threshold\n        self.recovery_timeout = recovery_timeout\n        self.failure_count = 0\n        self.last_failure_time = 0\n        self.state = 'CLOSED'\n\n    def call(self, func, *args, **kwargs):\n        if self.state == 'OPEN':\n            if time.time() - self.last_failure_time &gt; self.recovery_timeout:\n                self.state = 'HALF_OPEN'\n            else:\n                raise Exception(\"Circuit is open\")\n\n        try:\n            result = func(*args, **kwargs)\n            self.failure_count = 0\n            if self.state == 'HALF_OPEN':\n                self.state = 'CLOSED'\n            return result\n        except Exception as e:\n            self.failure_count += 1\n            self.last_failure_time = time.time()\n            if self.failure_count &gt;= self.failure_threshold:\n                self.state = 'OPEN'\n            raise e\n\ndef redis_operation():\n    r = redis.Redis(host='localhost', port=6379, db=0)\n    return r.get('key')\n\ncircuit_breaker = CircuitBreaker(failure_threshold=3, recovery_timeout=10)\n\ntry:\n    result = circuit_breaker.call(redis_operation)\nexcept Exception as e:\n    print(e)\n<\/code><\/pre>\n<h2 id=\"%e7%86%94%e6%96%b7%e6%a9%9f%e5%88%b6%e7%9a%84%e5%84%aa%e5%8b%a2-PjerCBFluk\">\u7194\u65b7\u6a5f\u5236\u7684\u512a\u52e2<\/h2>\n<p>\u7194\u65b7\u6a5f\u5236\u5728Redis\u7684\u61c9\u7528\u4e2d\u5177\u6709\u591a\u65b9\u9762\u7684\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u63d0\u9ad8\u7cfb\u7d71\u7a69\u5b9a\u6027\uff1a<\/strong>\u901a\u904e\u53ca\u6642\u5207\u65b7\u6545\u969c\u8acb\u6c42\uff0c\u907f\u514d\u7cfb\u7d71\u8cc7\u6e90\u7684\u6d6a\u8cbb\uff0c\u5f9e\u800c\u63d0\u9ad8\u6574\u9ad4\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002<\/li>\n<li><strong>\u6539\u5584\u7528\u6236\u9ad4\u9a57\uff1a<\/strong>\u5728\u7cfb\u7d71\u51fa\u73fe\u554f\u984c\u6642\uff0c\u80fd\u5920\u5feb\u901f\u8fd4\u56de\u932f\u8aa4\u4fe1\u606f\uff0c\u8b93\u7528\u6236\u4e0d\u6703\u9577\u6642\u9593\u7b49\u5f85\u3002<\/li>\n<li><strong>\u4fbf\u65bc\u6545\u969c\u6392\u67e5\uff1a<\/strong>\u7194\u65b7\u6a5f\u5236\u80fd\u5920\u63d0\u4f9b\u6e05\u6670\u7684\u6545\u969c\u4fe1\u606f\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u5feb\u901f\u5b9a\u4f4d\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-PjerCBFluk\">\u7e3d\u7d50<\/h2>\n<p>\u7194\u65b7\u4fdd\u8b77\u662f\u63d0\u5347Redis\u53ef\u7528\u6027\u7684\u91cd\u8981\u624b\u6bb5\uff0c\u901a\u904e\u5408\u7406\u7684\u7194\u65b7\u6a5f\u5236\u8a2d\u8a08\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u9632\u6b62\u7cfb\u7d71\u56e0\u70ba\u55ae\u4e00\u670d\u52d9\u7684\u6545\u969c\u800c\u5c0e\u81f4\u6574\u9ad4\u5d29\u6f70\u3002\u96a8\u8457\u5206\u4f48\u5f0f\u7cfb\u7d71\u7684\u767c\u5c55\uff0c\u7194\u65b7\u6a5f\u5236\u5c07\u6210\u70ba\u4fdd\u969c\u7cfb\u7d71\u7a69\u5b9a\u6027\u548c\u53ef\u7528\u6027\u7684\u91cd\u8981\u5de5\u5177\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u4e26\u7d50\u5408\u7194\u65b7\u6a5f\u5236\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6574\u9ad4\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3Redis\u7684\u7194\u65b7\u6a5f\u5236\u5982\u4f55\u63d0\u5347\u7cfb\u7d71\u53ef\u7528\u6027\uff0c\u9632\u6b62\u6545\u969c\u64f4\u6563\uff0c\u78ba\u4fdd\u6578\u64da\u5b58\u53d6\u7684\u7a69\u5b9a\u6027\u8207\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-172407","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172407","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=172407"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172407\/revisions"}],"predecessor-version":[{"id":172408,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172407\/revisions\/172408"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=172407"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=172407"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=172407"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}