{"id":167377,"date":"2024-11-06T00:40:18","date_gmt":"2024-11-05T16:40:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/167377\/"},"modified":"2024-11-06T00:40:19","modified_gmt":"2024-11-05T16:40:19","slug":"%e5%88%a9%e7%94%a8redis%e9%9b%86%e7%be%a4%e7%b3%bb%e7%b5%b1%e7%8d%b2%e5%8f%96%e6%95%b8%e6%93%9a%e7%9a%84%e6%b5%81%e7%a8%8b%ef%bc%88redis%e9%9b%86%e7%be%a4%e5%8f%96%e6%95%b8%e6%93%9a%e6%b5%81%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/167377\/","title":{"rendered":"\u5229\u7528Redis\u96c6\u7fa4\u7cfb\u7d71\u7372\u53d6\u6578\u64da\u7684\u6d41\u7a0b\uff08redis\u96c6\u7fa4\u53d6\u6578\u64da\u6d41\u7a0b\uff09"},"content":{"rendered":"

\u5229\u7528Redis\u96c6\u7fa4\u7cfb\u7d71\u7372\u53d6\u6578\u64da\u7684\u6d41\u7a0b<\/h1>\n

Redis\u662f\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u6578\u64da\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u7b49\u5834\u666f\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u55ae\u4e00\u7684Redis\u5be6\u4f8b\u53ef\u80fd\u7121\u6cd5\u6eff\u8db3\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u7684\u9700\u6c42\uff0c\u56e0\u6b64Redis\u96c6\u7fa4\u7cfb\u7d71\u61c9\u904b\u800c\u751f\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728Redis\u96c6\u7fa4\u4e2d\u7372\u53d6\u6578\u64da\u7684\u6d41\u7a0b\u3002<\/p>\n

\u4ec0\u9ebc\u662fRedis\u96c6\u7fa4\uff1f<\/h2>\n

Redis\u96c6\u7fa4\u662f\u4e00\u7a2e\u5206\u4f48\u5f0f\u67b6\u69cb\uff0c\u5141\u8a31\u5c07\u6578\u64da\u5206\u6563\u5b58\u5132\u5728\u591a\u500bRedis\u5be6\u4f8b\u4e2d\u3002\u9019\u6a23\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u7684\u53ef\u7528\u6027\uff0c\u9084\u80fd\u5920\u5be6\u73fe\u6c34\u5e73\u64f4\u5c55\u3002Redis\u96c6\u7fa4\u4f7f\u7528\u54c8\u5e0c\u69fd\uff08hash slots\uff09\u4f86\u5206\u914d\u6578\u64da\uff0c\u6bcf\u500b\u9375\u90fd\u6703\u88ab\u6620\u5c04\u5230\u4e00\u500b\u7279\u5b9a\u7684\u54c8\u5e0c\u69fd\uff0c\u7136\u5f8c\u9019\u4e9b\u54c8\u5e0c\u69fd\u6703\u88ab\u5206\u914d\u5230\u4e0d\u540c\u7684Redis\u7bc0\u9ede\u4e0a\u3002<\/p>\n

Redis\u96c6\u7fa4\u7684\u6578\u64da\u7372\u53d6\u6d41\u7a0b<\/h2>\n

\u5728Redis\u96c6\u7fa4\u4e2d\u7372\u53d6\u6578\u64da\u7684\u6d41\u7a0b\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n

1. \u5ba2\u6236\u7aef\u9023\u63a5\u96c6\u7fa4<\/h3>\n

\u9996\u5148\uff0c\u5ba2\u6236\u7aef\u9700\u8981\u9023\u63a5\u5230Redis\u96c6\u7fa4\u4e2d\u7684\u4e00\u500b\u7bc0\u9ede\u3002\u9019\u53ef\u4ee5\u901a\u904e\u6307\u5b9a\u7bc0\u9ede\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u4f86\u5be6\u73fe\u3002\u9023\u63a5\u5f8c\uff0c\u5ba2\u6236\u7aef\u6703\u7372\u53d6\u96c6\u7fa4\u7684\u62d3\u64b2\u7d50\u69cb\uff0c\u5305\u62ec\u6240\u6709\u7bc0\u9ede\u53ca\u5176\u54c8\u5e0c\u69fd\u7684\u5206\u914d\u60c5\u6cc1\u3002<\/p>\n

import redis\n\n# \u9023\u63a5\u5230Redis\u96c6\u7fa4\u4e2d\u7684\u4e00\u500b\u7bc0\u9ede\ncluster = redis.StrictRedisCluster(startup_nodes=[{\"host\": \"127.0.0.1\", \"port\": \"7000\"}])\n<\/code><\/pre>\n
2. \u78ba\u5b9a\u6578\u64da\u6240\u5728\u7684\u54c8\u5e0c\u69fd<\/h3>\n
\u7576\u5ba2\u6236\u7aef\u9700\u8981\u7372\u53d6\u67d0\u500b\u9375\u7684\u6578\u64da\u6642\uff0c\u9996\u5148\u9700\u8981\u8a08\u7b97\u8a72\u9375\u6240\u5c0d\u61c9\u7684\u54c8\u5e0c\u69fd\u3002Redis\u4f7f\u7528CRC16\u7b97\u6cd5\u4f86\u8a08\u7b97\u54c8\u5e0c\u69fd\uff0c\u7e3d\u5171\u670916384\u500b\u54c8\u5e0c\u69fd\u3002<\/p>\n
def get_slot(key):\n    return redis.cluster.hashslot(key)\n\n# \u7372\u53d6\u9375\u7684\u54c8\u5e0c\u69fd\nslot = get_slot(\"my_key\")\n<\/code><\/pre>\n
3. \u7372\u53d6\u6578\u64da<\/h3>\n
\u4e00\u65e6\u78ba\u5b9a\u4e86\u54c8\u5e0c\u69fd\uff0c\u5ba2\u6236\u7aef\u5c31\u53ef\u4ee5\u6839\u64da\u54c8\u5e0c\u69fd\u627e\u5230\u5c0d\u61c9\u7684Redis\u7bc0\u9ede\uff0c\u7136\u5f8c\u5411\u8a72\u7bc0\u9ede\u767c\u9001\u7372\u53d6\u6578\u64da\u7684\u8acb\u6c42\u3002\u5982\u679c\u8a72\u7bc0\u9ede\u4e0a\u5b58\u5728\u8a72\u9375\uff0c\u5247\u8fd4\u56de\u5c0d\u61c9\u7684\u503c\uff1b\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u5247\u8fd4\u56de\u7a7a\u503c\u3002<\/p>\n
try:\n    value = cluster.get(\"my_key\")\n    if value:\n        print(f\"\u7372\u53d6\u5230\u7684\u503c: {value}\")\n    else:\n        print(\"\u8a72\u9375\u4e0d\u5b58\u5728\")\nexcept redis.exceptions.RedisError as e:\n    print(f\"Redis\u932f\u8aa4: {e}\")\n<\/code><\/pre>\n
4. \u8655\u7406\u91cd\u5b9a\u5411<\/h3>\n
\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u5ba2\u6236\u7aef\u53ef\u80fd\u6703\u9047\u5230\u91cd\u5b9a\u5411\u7684\u60c5\u6cc1\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u8acb\u6c42\u7684\u9375\u4e0d\u5728\u7576\u524d\u7bc0\u9ede\u4e0a\u6642\u3002Redis\u6703\u8fd4\u56de\u4e00\u500bMOVING\u6216ASK\u7684\u932f\u8aa4\uff0c\u544a\u8a34\u5ba2\u6236\u7aef\u9700\u8981\u91cd\u5b9a\u5411\u5230\u6b63\u78ba\u7684\u7bc0\u9ede\u3002\u5ba2\u6236\u7aef\u9700\u8981\u6839\u64da\u8fd4\u56de\u7684\u5730\u5740\u91cd\u65b0\u767c\u9001\u8acb\u6c42\u3002<\/p>\n
except redis.exceptions.MovedError as e:\n    new_node = e.args[1]\n    # \u91cd\u65b0\u9023\u63a5\u5230\u65b0\u7684\u7bc0\u9ede\n    cluster = redis.StrictRedisCluster(startup_nodes=[{\"host\": new_node[0], \"port\": new_node[1]}])\n    value = cluster.get(\"my_key\")\n<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u5229\u7528Redis\u96c6\u7fa4\u7cfb\u7d71\u7372\u53d6\u6578\u64da\u7684\u6d41\u7a0b\u6d89\u53ca\u5ba2\u6236\u7aef\u9023\u63a5\u3001\u54c8\u5e0c\u69fd\u8a08\u7b97\u3001\u6578\u64da\u7372\u53d6\u53ca\u91cd\u5b9a\u5411\u8655\u7406\u7b49\u6b65\u9a5f\u3002\u9019\u7a2e\u67b6\u69cb\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u7684\u53ef\u7528\u6027\uff0c\u9084\u80fd\u5920\u6709\u6548\u5730\u8655\u7406\u5927\u898f\u6a21\u7684\u6578\u64da\u8acb\u6c42\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>\u4f86\u90e8\u7f72Redis\u96c6\u7fa4\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u4e86\u89e3Redis\u96c6\u7fa4\u7684\u904b\u4f5c\u539f\u7406\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u8a2d\u8a08\u548c\u512a\u5316\u7cfb\u7d71\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3Redis\u96c6\u7fa4\u7cfb\u7d71\u7372\u53d6\u6578\u64da\u7684\u6d41\u7a0b\uff0c\u638c\u63e1\u6578\u64da\u5206\u7247\u3001\u67e5\u8a62\u8def\u7531\u53ca\u9ad8\u6548\u5b58\u53d6\u7684\u95dc\u9375\u6b65\u9a5f\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-167377","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167377","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=167377"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167377\/revisions"}],"predecessor-version":[{"id":167378,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167377\/revisions\/167378"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=167377"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=167377"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=167377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}