{"id":154697,"date":"2024-11-02T17:58:21","date_gmt":"2024-11-02T09:58:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/154697\/"},"modified":"2024-11-02T17:58:22","modified_gmt":"2024-11-02T09:58:22","slug":"%e5%a4%9a%e5%ae%a2%e6%88%b6%e7%ab%af%e7%9a%84%e4%b8%a6%e7%99%bc%e5%95%8f%e9%a1%8c-redis-%e8%ae%80%e5%af%ab%e9%8e%96%e8%a7%a3%e6%b1%ba%e5%a4%9a%e5%ae%a2%e6%88%b6%e7%ab%af%e4%b8%a6%e7%99%bc%e5%95%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/154697\/","title":{"rendered":"\u591a\u5ba2\u6236\u7aef\u7684\u4e26\u767c\u554f\u984c Redis \u8b80\u5beb\u9396\u89e3\u6c7a\u591a\u5ba2\u6236\u7aef\u4e26\u767c\u554f\u984c\u7684\u512a\u52e2\uff08Redis \u8b80\u5beb\u9396\u5982\u4f55\u89e3\u6c7a\uff09"},"content":{"rendered":"<h1 id=\"%e5%a4%9a%e5%ae%a2%e6%88%b6%e7%ab%af%e7%9a%84%e4%b8%a6%e7%99%bc%e5%95%8f%e9%a1%8c%ef%bc%9aredis-%e8%ae%80%e5%af%ab%e9%8e%96%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88%e7%9a%84%e5%84%aa%e5%8b%a2-cpfqEuMGoh\">\u591a\u5ba2\u6236\u7aef\u7684\u4e26\u767c\u554f\u984c\uff1aRedis \u8b80\u5beb\u9396\u89e3\u6c7a\u65b9\u6848\u7684\u512a\u52e2<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u591a\u5ba2\u6236\u7aef\u7684\u4e26\u767c\u8a2a\u554f\u5df2\u6210\u70ba\u4e00\u500b\u666e\u904d\u7684\u6311\u6230\u3002\u96a8\u8457\u7528\u6236\u6578\u91cf\u7684\u589e\u52a0\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u7684\u8b80\u53d6\u548c\u5beb\u5165\u64cd\u4f5c\uff0c\u6210\u70ba\u4e86\u958b\u767c\u8005\u5fc5\u9808\u9762\u5c0d\u7684\u91cd\u8981\u8ab2\u984c\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u89e3\u6c7a\u65b9\u6848\u4f86\u61c9\u5c0d\u9019\u4e00\u6311\u6230\uff0c\u5176\u4e2d\u8b80\u5beb\u9396\u7684\u4f7f\u7528\u5c24\u70ba\u91cd\u8981\u3002<\/p>\n<h2 id=\"%e4%b8%a6%e7%99%bc%e5%95%8f%e9%a1%8c%e7%9a%84%e6%a0%b9%e6%ba%90-cpfqEuMGoh\">\u4e26\u767c\u554f\u984c\u7684\u6839\u6e90<\/h2>\n<p>\u4e26\u767c\u554f\u984c\u4e3b\u8981\u6e90\u65bc\u591a\u500b\u5ba2\u6236\u7aef\u540c\u6642\u5c0d\u540c\u4e00\u8cc7\u6e90\u9032\u884c\u64cd\u4f5c\uff0c\u9019\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u6216\u640d\u58de\u3002\u4f8b\u5982\uff0c\u7576\u5169\u500b\u5ba2\u6236\u7aef\u540c\u6642\u5617\u8a66\u66f4\u65b0\u540c\u4e00\u689d\u8a18\u9304\u6642\uff0c\u6700\u7d42\u7684\u6578\u64da\u72c0\u614b\u53ef\u80fd\u53d6\u6c7a\u65bc\u54ea\u4e00\u500b\u8acb\u6c42\u5148\u5b8c\u6210\uff0c\u9019\u6a23\u5c31\u6703\u51fa\u73fe\u7af6\u722d\u689d\u4ef6\uff08Race Condition\uff09\u3002<\/p>\n<h2 id=\"redis-%e8%ae%80%e5%af%ab%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-cpfqEuMGoh\">Redis \u8b80\u5beb\u9396\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u7c21\u55ae\u800c\u9ad8\u6548\u7684\u9396\u6a5f\u5236\uff0c\u5176\u4e2d\u8b80\u5beb\u9396\u662f\u4e00\u7a2e\u5e38\u7528\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u8b80\u5beb\u9396\u5141\u8a31\u591a\u500b\u5ba2\u6236\u7aef\u540c\u6642\u8b80\u53d6\u6578\u64da\uff0c\u4f46\u5728\u5beb\u5165\u6578\u64da\u6642\uff0c\u5247\u6703\u963b\u6b62\u5176\u4ed6\u5ba2\u6236\u7aef\u7684\u8b80\u53d6\u548c\u5beb\u5165\u64cd\u4f5c\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u7cfb\u7d71\u7684\u4e26\u767c\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u8b80\u53d6\u64cd\u4f5c\u9060\u591a\u65bc\u5beb\u5165\u64cd\u4f5c\u7684\u5834\u666f\u4e2d\u3002<\/p>\n<h3 id=\"%e8%ae%80%e5%af%ab%e9%8e%96%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-cpfqEuMGoh\">\u8b80\u5beb\u9396\u7684\u5de5\u4f5c\u539f\u7406<\/h3>\n<p>\u5728 Redis \u4e2d\uff0c\u8b80\u5beb\u9396\u7684\u5be6\u73fe\u901a\u5e38\u4f9d\u8cf4\u65bc\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li><strong>\u7372\u53d6\u9396\uff1a<\/strong>\u7576\u5ba2\u6236\u7aef\u9700\u8981\u8b80\u53d6\u6578\u64da\u6642\uff0c\u5b83\u6703\u5617\u8a66\u7372\u53d6\u8b80\u9396\uff1b\u7576\u9700\u8981\u5beb\u5165\u6578\u64da\u6642\uff0c\u5247\u6703\u5617\u8a66\u7372\u53d6\u5beb\u9396\u3002<\/li>\n<li><strong>\u9396\u7684\u72c0\u614b\uff1a<\/strong>\u5982\u679c\u7576\u524d\u6c92\u6709\u5176\u4ed6\u5ba2\u6236\u7aef\u6301\u6709\u5beb\u9396\uff0c\u5247\u53ef\u4ee5\u7372\u53d6\u8b80\u9396\uff1b\u5982\u679c\u6709\u5ba2\u6236\u7aef\u6301\u6709\u5beb\u9396\uff0c\u5247\u8b80\u53d6\u8acb\u6c42\u6703\u88ab\u963b\u585e\u3002<\/li>\n<li><strong>\u91cb\u653e\u9396\uff1a<\/strong>\u64cd\u4f5c\u5b8c\u6210\u5f8c\uff0c\u5ba2\u6236\u7aef\u9700\u8981\u91cb\u653e\u9396\uff0c\u4ee5\u4fbf\u5176\u4ed6\u8acb\u6c42\u53ef\u4ee5\u7e7c\u7e8c\u9032\u884c\u3002<\/li>\n<\/ol>\n<h3 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-cpfqEuMGoh\">\u793a\u4f8b\u4ee3\u78bc<\/h3>\n<pre><code>\n# \u7372\u53d6\u8b80\u9396\ndef acquire_read_lock(redis_client, lock_key):\n    return redis_client.get(lock_key) is None\n\n# \u7372\u53d6\u5beb\u9396\ndef acquire_write_lock(redis_client, lock_key):\n    return redis_client.set(lock_key, \"locked\", nx=True)\n\n# \u91cb\u653e\u9396\ndef release_lock(redis_client, lock_key):\n    redis_client.delete(lock_key)\n<\/code><\/pre>\n<h2 id=\"redis-%e8%ae%80%e5%af%ab%e9%8e%96%e7%9a%84%e5%84%aa%e5%8b%a2-cpfqEuMGoh\">Redis \u8b80\u5beb\u9396\u7684\u512a\u52e2<\/h2>\n<p>\u4f7f\u7528 Redis \u8b80\u5beb\u9396\u4f86\u89e3\u6c7a\u591a\u5ba2\u6236\u7aef\u4e26\u767c\u554f\u984c\u5177\u6709\u4ee5\u4e0b\u5e7e\u500b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6548\u6027\uff1a<\/strong>Redis \u7684\u5167\u5b58\u5b58\u5132\u7279\u6027\u4f7f\u5f97\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\u901f\u5ea6\u975e\u5e38\u5feb\uff0c\u80fd\u5920\u6709\u6548\u6e1b\u5c11\u5ef6\u9072\u3002<\/li>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>\u8b80\u5beb\u9396\u7684\u8a2d\u8a08\u5141\u8a31\u591a\u500b\u8b80\u64cd\u4f5c\u540c\u6642\u9032\u884c\uff0c\u9019\u5728\u8b80\u53d6\u983b\u7e41\u7684\u61c9\u7528\u4e2d\u80fd\u986f\u8457\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<li><strong>\u7c21\u55ae\u6613\u7528\uff1a<\/strong>Redis \u63d0\u4f9b\u7684 API \u7c21\u55ae\u660e\u77ad\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5be6\u73fe\u9396\u7684\u7ba1\u7406\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-cpfqEuMGoh\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u591a\u5ba2\u6236\u7aef\u7684\u74b0\u5883\u4e2d\uff0c\u4e26\u767c\u554f\u984c\u662f\u4e0d\u53ef\u907f\u514d\u7684\uff0c\u800c Redis \u7684\u8b80\u5beb\u9396\u6a5f\u5236\u70ba\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u63d0\u4f9b\u4e86\u4e00\u500b\u9ad8\u6548\u4e14\u9748\u6d3b\u7684\u65b9\u6848\u3002\u901a\u904e\u5408\u7406\u5730\u4f7f\u7528\u8b80\u5beb\u9396\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\uff0c\u5f9e\u800c\u63d0\u5347\u61c9\u7528\u7684\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u4e14\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u7684\u670d\u52d9\u5c07\u662f\u60a8\u7684\u7406\u60f3\u9078\u64c7\u3002\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u80fd\u5920\u652f\u6301\u5404\u7a2e\u61c9\u7528\u5834\u666f\uff0c\u52a9\u60a8\u8f15\u9b06\u61c9\u5c0d\u4e26\u767c\u6311\u6230\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u8b80\u5beb\u9396\u5982\u4f55\u6709\u6548\u89e3\u6c7a\u591a\u5ba2\u6236\u7aef\u7684\u4e26\u767c\u554f\u984c\uff0c\u63d0\u5347\u6578\u64da\u4e00\u81f4\u6027\u8207\u7cfb\u7d71\u6027\u80fd\u7684\u512a\u52e2\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-154697","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154697","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=154697"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154697\/revisions"}],"predecessor-version":[{"id":154698,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154697\/revisions\/154698"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=154697"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=154697"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=154697"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}