{"id":159899,"date":"2024-11-03T18:35:21","date_gmt":"2024-11-03T10:35:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/159899\/"},"modified":"2024-11-03T18:35:22","modified_gmt":"2024-11-03T10:35:22","slug":"redis-%e8%a8%98%e9%8c%84%e9%8c%af%e8%aa%a4%e6%ac%a1%e6%95%b8%ef%bc%9a%e7%b4%85%e8%89%b2%e4%b9%8b%e9%8e%96%e7%b5%b1%e8%a8%88%e8%a8%98%e9%8c%84%e7%a8%8b%e5%ba%8f%e9%81%8b%e8%a1%8c%e4%b8%ad%e7%9a%84","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/159899\/","title":{"rendered":"REDIS \u8a18\u9304\u932f\u8aa4\u6b21\u6578\uff1a\u7d05\u8272\u4e4b\u9396\u7d71\u8a08\u8a18\u9304\u7a0b\u5e8f\u904b\u884c\u4e2d\u7684\u932f\u8aa4\u6b21\u6578"},"content":{"rendered":"<h1 id=\"redis-%e8%a8%98%e9%8c%84%e9%8c%af%e8%aa%a4%e6%ac%a1%e6%95%b8%ef%bc%9a%e7%b4%85%e8%89%b2%e4%b9%8b%e9%8e%96%e7%b5%b1%e8%a8%88%e8%a8%98%e9%8c%84%e7%a8%8b%e5%ba%8f%e9%81%8b%e8%a1%8c%e4%b8%ad%e7%9a%84-IVIDJLqrqz\">REDIS \u8a18\u9304\u932f\u8aa4\u6b21\u6578\uff1a\u7d05\u8272\u4e4b\u9396\u7d71\u8a08\u8a18\u9304\u7a0b\u5e8f\u904b\u884c\u4e2d\u7684\u932f\u8aa4\u6b21\u6578<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6027\u80fd\u548c\u53ef\u9760\u6027\u662f\u4efb\u4f55\u61c9\u7528\u7a0b\u5e8f\u6210\u529f\u7684\u95dc\u9375\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5b58\u5132\u7b49\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528 Redis \u8a18\u9304\u932f\u8aa4\u6b21\u6578\uff0c\u7279\u5225\u662f\u5728\u7d05\u8272\u4e4b\u9396\uff08Redlock\uff09\u7b97\u6cd5\u7684\u4e0a\u4e0b\u6587\u4e2d\uff0c\u4f86\u7d71\u8a08\u7a0b\u5e8f\u904b\u884c\u4e2d\u7684\u932f\u8aa4\u6b21\u6578\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%b4%85%e8%89%b2%e4%b9%8b%e9%8e%96%ef%bc%88redlock%ef%bc%89%ef%bc%9f-IVIDJLqrqz\">\u4ec0\u9ebc\u662f\u7d05\u8272\u4e4b\u9396\uff08Redlock\uff09\uff1f<\/h2>\n<p>\u7d05\u8272\u4e4b\u9396\u662f\u4e00\u7a2e\u5206\u4f48\u5f0f\u9396\u7684\u5be6\u73fe\u65b9\u5f0f\uff0c\u65e8\u5728\u89e3\u6c7a\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u5c0d\u8cc7\u6e90\u7684\u7af6\u722d\u554f\u984c\u3002\u5b83\u7531 Redis \u7684\u5275\u59cb\u4eba Antirez \u63d0\u51fa\u7684\uff0c\u4e3b\u8981\u7528\u65bc\u78ba\u4fdd\u5728\u591a\u500b\u5be6\u4f8b\u4e4b\u9593\u7684\u8cc7\u6e90\u8a2a\u554f\u662f\u5b89\u5168\u7684\u3002\u7d05\u8272\u4e4b\u9396\u7684\u57fa\u672c\u539f\u7406\u662f\u901a\u904e\u5728\u591a\u500b Redis \u5be6\u4f8b\u4e0a\u8a2d\u7f6e\u9396\u4f86\u5be6\u73fe\uff0c\u9019\u6a23\u5373\u4f7f\u67d0\u500b\u5be6\u4f8b\u5931\u6548\uff0c\u5176\u4ed6\u5be6\u4f8b\u4ecd\u7136\u53ef\u4ee5\u4fdd\u6301\u9396\u7684\u6709\u6548\u6027\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e8%a8%98%e9%8c%84%e9%8c%af%e8%aa%a4%e6%ac%a1%e6%95%b8%ef%bc%9f-IVIDJLqrqz\">\u70ba\u4ec0\u9ebc\u9700\u8981\u8a18\u9304\u932f\u8aa4\u6b21\u6578\uff1f<\/h2>\n<p>\u5728\u4f7f\u7528\u7d05\u8272\u4e4b\u9396\u7684\u904e\u7a0b\u4e2d\uff0c\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u4f8b\u5982\u9396\u7372\u53d6\u5931\u6557\u3001\u8d85\u6642\u6216\u7db2\u7d61\u554f\u984c\u7b49\u3002\u9019\u4e9b\u932f\u8aa4\u7684\u7d71\u8a08\u5c0d\u65bc\u7cfb\u7d71\u7684\u5065\u5eb7\u76e3\u63a7\u548c\u6027\u80fd\u512a\u5316\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u8a18\u9304\u932f\u8aa4\u6b21\u6578\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u53ca\u6642\u767c\u73fe\u554f\u984c\u4e26\u9032\u884c\u8abf\u6574\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8-redis-%e4%b8%ad%e8%a8%98%e9%8c%84%e9%8c%af%e8%aa%a4%e6%ac%a1%e6%95%b8-IVIDJLqrqz\">\u5982\u4f55\u5728 Redis \u4e2d\u8a18\u9304\u932f\u8aa4\u6b21\u6578<\/h2>\n<p>\u5728 Redis \u4e2d\u8a18\u9304\u932f\u8aa4\u6b21\u6578\u53ef\u4ee5\u901a\u904e\u7c21\u55ae\u7684\u9375\u503c\u5c0d\u4f86\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u57fa\u672c\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 Redis \u7684\u547d\u4ee4\u4f86\u8a18\u9304\u932f\u8aa4\u6b21\u6578\uff1a<\/p>\n<pre><code>SET error_count 0  # \u521d\u59cb\u5316\u932f\u8aa4\u6b21\u6578\n<\/code><\/pre>\n<p>\u7576\u7a0b\u5e8f\u904b\u884c\u4e2d\u767c\u751f\u932f\u8aa4\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u589e\u52a0\u932f\u8aa4\u6b21\u6578\uff1a<\/p>\n<pre><code>INCR error_count  # \u589e\u52a0\u932f\u8aa4\u6b21\u6578\n<\/code><\/pre>\n<p>\u8981\u67e5\u770b\u7576\u524d\u7684\u932f\u8aa4\u6b21\u6578\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre><code>GET error_count  # \u7372\u53d6\u7576\u524d\u932f\u8aa4\u6b21\u6578\n<\/code><\/pre>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e8%99%95%e7%90%86%e7%a4%ba%e4%be%8b-IVIDJLqrqz\">\u932f\u8aa4\u8655\u7406\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Python \u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728\u4f7f\u7528\u7d05\u8272\u4e4b\u9396\u6642\u8a18\u9304\u932f\u8aa4\u6b21\u6578\uff1a<\/p>\n<pre><code>import redis\nimport time\n\n# \u9023\u63a5\u5230 Redis\nr = redis.StrictRedis(host='localhost', port=6379, db=0)\n\ndef acquire_lock(lock_name, timeout=10):\n    identifier = str(time.time())\n    lock_acquired = r.set(lock_name, identifier, ex=timeout, nx=True)\n    \n    if not lock_acquired:\n        r.incr('error_count')  # \u589e\u52a0\u932f\u8aa4\u6b21\u6578\n        return False\n    return identifier\n\n# \u4f7f\u7528\u7d05\u8272\u4e4b\u9396\nlock_name = \"my_lock\"\nlock = acquire_lock(lock_name)\n\nif lock:\n    try:\n        # \u57f7\u884c\u9700\u8981\u9396\u5b9a\u7684\u64cd\u4f5c\n        pass\n    finally:\n        r.delete(lock_name)  # \u91cb\u653e\u9396\nelse:\n    print(\"\u7121\u6cd5\u7372\u53d6\u9396\uff0c\u932f\u8aa4\u6b21\u6578:\", r.get('error_count'))\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-IVIDJLqrqz\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u4f7f\u7528 Redis \u8a18\u9304\u932f\u8aa4\u6b21\u6578\u662f\u4e00\u7a2e\u6709\u6548\u7684\u76e3\u63a7\u624b\u6bb5\uff0c\u7279\u5225\u662f\u5728\u5be6\u73fe\u7d05\u8272\u4e4b\u9396\u7684\u904e\u7a0b\u4e2d\u3002\u901a\u904e\u7c21\u55ae\u7684\u547d\u4ee4\u548c\u4ee3\u78bc\u793a\u4f8b\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u8ddf\u8e2a\u932f\u8aa4\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002\u5c0d\u65bc\u5e0c\u671b\u5728\u9999\u6e2f\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u5730\u4f7f\u7528 Redis \u4f86\u7ba1\u7406\u932f\u8aa4\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>REDIS \u8a18\u9304\u932f\u8aa4\u6b21\u6578\uff1a\u8ffd\u8e64\u7d05\u8272\u4e4b\u9396\u5728\u7a0b\u5e8f\u904b\u884c\u4e2d\u7684\u932f\u8aa4\u6b21\u6578\uff0c\u63d0\u5347\u7cfb\u7d71\u7a69\u5b9a\u6027\u8207\u6027\u80fd\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-159899","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159899","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=159899"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159899\/revisions"}],"predecessor-version":[{"id":159900,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159899\/revisions\/159900"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=159899"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=159899"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=159899"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}