{"id":163583,"date":"2024-11-05T00:43:25","date_gmt":"2024-11-04T16:43:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/163583\/"},"modified":"2024-11-05T00:43:26","modified_gmt":"2024-11-04T16:43:26","slug":"%e8%a7%a3%e6%b1%baredis%e7%86%b1%e9%bb%9e%e7%b7%a9%e5%ad%98%e5%95%8f%e9%a1%8c%e7%9a%84%e6%96%b9%e6%b3%95%ef%bc%88redis%e7%86%b1%e9%bb%9e%e7%b7%a9%e5%ad%98%e5%95%8f%e9%a1%8c%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/163583\/","title":{"rendered":"\u89e3\u6c7aRedis\u71b1\u9ede\u7de9\u5b58\u554f\u984c\u7684\u65b9\u6cd5\uff08redis\u71b1\u9ede\u7de9\u5b58\u554f\u984c\uff09"},"content":{"rendered":"

\u89e3\u6c7aRedis\u71b1\u9ede\u7de9\u5b58\u554f\u984c\u7684\u65b9\u6cd5<\/h1>\n

\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u7de9\u5b58\u89e3\u6c7a\u65b9\u6848\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u6578\u64da\u5b58\u5132\u548c\u5feb\u901f\u8a2a\u554f\u3002\u7136\u800c\uff0c\u96a8\u8457\u7528\u6236\u91cf\u7684\u589e\u52a0\u548c\u6578\u64da\u8acb\u6c42\u7684\u591a\u6a23\u5316\uff0cRedis\u7684\u71b1\u9ede\u7de9\u5b58\u554f\u984c\u9010\u6f38\u6d6e\u73fe\u3002\u71b1\u9ede\u7de9\u5b58\u554f\u984c\u6307\u7684\u662f\u67d0\u4e9b\u7279\u5b9a\u7684\u9375\uff08key\uff09\u56e0\u70ba\u9ad8\u983b\u7387\u7684\u8a2a\u554f\u800c\u5c0e\u81f4\u7684\u6027\u80fd\u74f6\u9838\uff0c\u9019\u4e0d\u50c5\u5f71\u97ff\u4e86\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\uff0c\u9084\u53ef\u80fd\u5c0e\u81f4\u670d\u52d9\u7684\u4e0d\u53ef\u7528\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u89e3\u6c7aRedis\u71b1\u9ede\u7de9\u5b58\u554f\u984c\u7684\u5e7e\u7a2e\u6709\u6548\u65b9\u6cd5\u3002<\/p>\n

\u4ec0\u9ebc\u662fRedis\u71b1\u9ede\u7de9\u5b58\u554f\u984c\uff1f<\/h2>\n

Redis\u71b1\u9ede\u7de9\u5b58\u554f\u984c\u901a\u5e38\u767c\u751f\u5728\u67d0\u4e9b\u7279\u5b9a\u7684\u9375\u88ab\u5927\u91cf\u8acb\u6c42\u6642\uff0c\u9019\u4e9b\u8acb\u6c42\u53ef\u80fd\u4f86\u81ea\u65bc\u5927\u91cf\u7684\u7528\u6236\u6216\u61c9\u7528\u7a0b\u5e8f\u3002\u7576\u9019\u4e9b\u9375\u7684\u8a2a\u554f\u91cf\u8d85\u904e\u4e86Redis\u7684\u8655\u7406\u80fd\u529b\u6642\uff0c\u5c31\u6703\u51fa\u73fe\u5ef6\u9072\uff0c\u751a\u81f3\u5c0e\u81f4\u670d\u52d9\u5d29\u6f70\u3002\u9019\u7a2e\u60c5\u6cc1\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\u5c24\u70ba\u660e\u986f\uff0c\u7279\u5225\u662f\u5728\u96fb\u5546\u4fc3\u92b7\u3001\u6d3b\u52d5\u5831\u540d\u7b49\u5834\u666f\u4e2d\u3002<\/p>\n

\u89e3\u6c7aRedis\u71b1\u9ede\u7de9\u5b58\u554f\u984c\u7684\u65b9\u6cd5<\/h2>\n

1. \u4f7f\u7528\u5206\u7247\u6280\u8853<\/h3>\n

\u5206\u7247\u6280\u8853\u662f\u89e3\u6c7a\u71b1\u9ede\u554f\u984c\u7684\u4e00\u7a2e\u6709\u6548\u65b9\u6cd5\u3002\u901a\u904e\u5c07\u6578\u64da\u5206\u6563\u5230\u591a\u500bRedis\u5be6\u4f8b\u4e2d\uff0c\u53ef\u4ee5\u6e1b\u5c11\u55ae\u500b\u5be6\u4f8b\u7684\u8ca0\u8f09\u3002\u9019\u6a23\uff0c\u5373\u4f7f\u67d0\u4e9b\u9375\u7684\u8a2a\u554f\u91cf\u5f88\u9ad8\uff0c\u8acb\u6c42\u4e5f\u6703\u88ab\u5206\u6563\u5230\u4e0d\u540c\u7684\u5be6\u4f8b\u4e0a\uff0c\u5f9e\u800c\u964d\u4f4e\u4e86\u55ae\u500b\u5be6\u4f8b\u7684\u58d3\u529b\u3002<\/p>\n

\n# \u5047\u8a2d\u6709\u4e09\u500bRedis\u5be6\u4f8b\nredis1 = Redis(host='192.168.1.1', port=6379)\nredis2 = Redis(host='192.168.1.2', port=6379)\nredis3 = Redis(host='192.168.1.3', port=6379)\n\n# \u6839\u64da\u9375\u7684\u54c8\u5e0c\u503c\u9078\u64c7\u5be6\u4f8b\ndef get_redis_instance(key):\n    hash_value = hash(key) % 3\n    if hash_value == 0:\n        return redis1\n    elif hash_value == 1:\n        return redis2\n    else:\n        return redis3\n<\/code><\/pre>\n
2. \u4f7f\u7528\u7de9\u5b58\u7a7f\u900f\u548c\u7de9\u5b58\u96ea\u5d29\u7684\u9632\u8b77\u63aa\u65bd<\/h3>\n
\u7de9\u5b58\u7a7f\u900f\u662f\u6307\u8acb\u6c42\u7684\u9375\u5728\u7de9\u5b58\u4e2d\u4e0d\u5b58\u5728\uff0c\u5c0e\u81f4\u8acb\u6c42\u76f4\u63a5\u6253\u5230\u5f8c\u7aef\u6578\u64da\u5eab\u3002\u9019\u6703\u589e\u52a0\u6578\u64da\u5eab\u7684\u8ca0\u64d4\u3002\u70ba\u4e86\u9632\u6b62\u9019\u7a2e\u60c5\u6cc1\uff0c\u53ef\u4ee5\u4f7f\u7528\u5e03\u9686\u904e\u6ffe\u5668\u4f86\u904e\u6ffe\u8acb\u6c42\uff0c\u78ba\u4fdd\u53ea\u6709\u5b58\u5728\u7684\u9375\u624d\u6703\u88ab\u8acb\u6c42\u3002<\/p>\n
\u7de9\u5b58\u96ea\u5d29\u5247\u662f\u6307\u5728\u67d0\u4e00\u6642\u523b\u5927\u91cf\u7684\u7de9\u5b58\u540c\u6642\u904e\u671f\uff0c\u5c0e\u81f4\u5927\u91cf\u8acb\u6c42\u76f4\u63a5\u6253\u5230\u6578\u64da\u5eab\u3002\u70ba\u4e86\u907f\u514d\u9019\u7a2e\u60c5\u6cc1\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u4e0d\u540c\u7684\u904e\u671f\u6642\u9593\uff0c\u6216\u8005\u5728\u7de9\u5b58\u5373\u5c07\u904e\u671f\u6642\u63d0\u524d\u66f4\u65b0\u7de9\u5b58\u3002<\/p>\n
3. \u4f7f\u7528\u71b1\u9375\u8b58\u5225\u548c\u964d\u7d1a\u7b56\u7565<\/h3>\n
\u901a\u904e\u76e3\u63a7Redis\u7684\u8a2a\u554f\u65e5\u8a8c\uff0c\u53ef\u4ee5\u8b58\u5225\u51fa\u71b1\u9375\u3002\u5c0d\u65bc\u9019\u4e9b\u71b1\u9375\uff0c\u53ef\u4ee5\u8003\u616e\u5be6\u65bd\u964d\u7d1a\u7b56\u7565\uff0c\u4f8b\u5982\u5728\u9ad8\u5cf0\u671f\u8fd4\u56de\u9810\u8a2d\u503c\u6216\u7de9\u5b58\u7684\u820a\u6578\u64da\uff0c\u5f9e\u800c\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u8acb\u6c42\u3002<\/p>\n
\n# \u5047\u8a2d\u8b58\u5225\u5230\u71b1\u9375\nhot_key = \"user:12345\"\n\n# \u964d\u7d1a\u7b56\u7565\ndef get_user_data(key):\n    if is_hot_key(key):\n        return get_cached_data(key) or get_default_data()\n    return get_cached_data(key)\n<\/code><\/pre>\n
4. \u5be6\u65bd\u8b80\u5beb\u5206\u96e2<\/h3>\n
\u5728\u9ad8\u4e26\u767c\u7684\u5834\u666f\u4e2d\uff0c\u8b80\u5beb\u5206\u96e2\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u4e3b\u6578\u64da\u5eab\u7684\u58d3\u529b\u3002\u901a\u904e\u5c07\u8b80\u8acb\u6c42\u5206\u767c\u5230\u591a\u500b\u5f9e\u6578\u64da\u5eab\u4e0a\uff0c\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
Redis\u71b1\u9ede\u7de9\u5b58\u554f\u984c\u662f\u4e00\u500b\u5e38\u898b\u7684\u6311\u6230\uff0c\u4f46\u901a\u904e\u5206\u7247\u6280\u8853\u3001\u7de9\u5b58\u7a7f\u900f\u548c\u96ea\u5d29\u7684\u9632\u8b77\u63aa\u65bd\u3001\u71b1\u9375\u8b58\u5225\u548c\u964d\u7d1a\u7b56\u7565\u4ee5\u53ca\u8b80\u5beb\u5206\u96e2\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7de9\u89e3\u9019\u4e00\u554f\u984c\u3002\u9019\u4e9b\u6280\u8853\u4e0d\u50c5\u80fd\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\uff0c\u9084\u80fd\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u548c\u9ad8\u53ef\u7528\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u9999\u6e2fVPS<\/a>\u6216\u4e91\u4f3a\u670d\u5668<\/a>\u89e3\u6c7a\u65b9\u6848\u5c07\u662f\u660e\u667a\u4e4b\u8209\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u89e3\u6c7aRedis\u71b1\u9ede\u7de9\u5b58\u554f\u984c\u7684\u65b9\u6cd5\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\uff0c\u512a\u5316\u6578\u64da\u5b58\u53d6\uff0c\u78ba\u4fdd\u9ad8\u6548\u80fd\u7684\u7de9\u5b58\u7ba1\u7406\u7b56\u7565\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-163583","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163583","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=163583"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163583\/revisions"}],"predecessor-version":[{"id":163584,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163583\/revisions\/163584"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=163583"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=163583"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=163583"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}