{"id":201286,"date":"2025-05-10T08:49:30","date_gmt":"2025-05-10T00:49:30","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201286\/"},"modified":"2025-05-10T08:49:30","modified_gmt":"2025-05-10T00:49:30","slug":"redis%e4%b8%ba%e4%bb%80%e4%b9%88%e5%bf%ab%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e9%ab%98%e5%8f%af%e7%94%a8%e5%8f%8a%e6%8c%81%e4%b9%85%e5%8c%96","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201286\/","title":{"rendered":"Redis\u4e3a\u4ec0\u4e48\u5feb\u5982\u4f55\u5b9e\u73b0\u9ad8\u53ef\u7528\u53ca\u6301\u4e45\u5316"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>Redis\u4e3a\u4ec0\u4e48\u5feb\u5982\u4f55\u5b9e\u73b0\u9ad8\u53ef\u7528\u53ca\u6301\u4e45\u5316<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> 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style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167255824163b136a1bd019.jpg\" class=\"aligncenter\"><\/p>\n<p>\u6709\u4e86\u4e3b\u4ece\u540c\u6b65\u7684\u96c6\u7fa4\uff0c\u90a3\u4e48\u4e3b\u8282\u70b9\u5c31\u8d1f\u8d23\u63d0\u4f9b\u5199\u64cd\u4f5c\uff0c\u800c\u4ece\u8282\u70b9\u5c31\u8d1f\u8d23\u652f\u6301\u8bfb\u64cd\u4f5c\u3002<\/p>\n<p>\u90a3\u4e48\u4ed6\u4eec\u4e4b\u95f4\u662f\u5982\u4f55\u8fdb\u884c\u6570\u636e\u540c\u6b65\u7684\u5462\uff1f<\/p>\n<p>\u5982\u679cSlave\uff08\u4ece\u8282\u70b9\uff09\u662f\u7b2c\u4e00\u6b21\u8ddfMaster\u8fdb\u884c\u8fde\u63a5\uff0c<\/p>\n<ul>\n<li>\u90a3\u4e48\u4f1a\u9996\u5148\u4f1a\u5411Master\u53d1\u9001\u540c\u6b65\u8bf7\u6c42<code>psync<\/code>\uff1b<\/li>\n<li>\u4e3b\u8282\u70b9\u63a5\u6536\u5230\u540c\u6b65\u8bf7\u6c42\uff0c\u5f00\u59cbfork\u4e3b\u5b50\u8fdb\u7a0b\u5f00\u59cb\u8fdb\u884c\u5168\u91cf\u540c\u6b65\uff0c\u7136\u540e\u751f\u6210RDB\u6587\u4ef6\uff1b<\/li>\n<li>\u8fd9\u4e2a\u65f6\u5019\u4e3b\u8282\u70b9\u540c\u65f6\u4f1a\u5c06\u65b0\u7684\u5199\u8bf7\u6c42\uff0c\u4fdd\u5b58\u5230\u7f13\u5b58\u533a\uff08buffer\uff09\u4e2d\uff1b<\/li>\n<li>\u4ece\u8282\u70b9\u63a5\u6536\u5230RDB\u6587\u4ef6\u540e\uff0c\u5148\u6e05\u7a7a\u8001\u6570\u636e\uff0c\u7136\u540e\u5c06RDB\u4e2d\u6570\u636e\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\uff1b<\/li>\n<li>\u7b49\u5230\u4ece\u8282\u70b9\u5c06RDB\u6587\u4ef6\u540c\u6b65\u5b8c\u6210\u540e\u518d\u540c\u6b65\u7f13\u5b58\u533a\u4e2d\u7684\u5199\u8bf7\u6c42\u3002<\/li>\n<\/ul>\n<p>\u6570\u7ec4\u88ab\u5360\u6ee1\u4e4b\u540e\u5c31\u4f1a\u8986\u76d6\u6389\u6700\u65e9\u4e4b\u524d\u7684\u6570\u636e\u3002<\/p>\n<p>\u6240\u4ee5\u5982\u679c\u7531\u4e8e\u7f51\u7edc\u6216\u662f\u5176\u4ed6\u539f\u56e0\uff0c\u9020\u6210\u7f13\u5b58\u533a\u4e2d\u7684\u6570\u636e\u88ab\u8986\u76d6\u4e86\uff0c\u90a3\u4e48\u5f53\u4ece\u8282\u70b9\u5904\u7406\u5b8c\u4e3b\u8282\u70b9\u7684RDB\u6587\u4ef6\u540e\uff0c\u5c31\u4e0d\u5f97\u4e0d\u53c8\u8981\u8fdb\u884c\u4e00\u5168\u91cf\u7684RDB\u6587\u4ef6\u7684\u590d\u5236\uff0c\u624d\u80fd\u4fdd\u8bc1\u4e3b\u4ece\u8282\u70b9\u7684\u6570\u636e\u4e00\u81f4\u3002<\/p>\n<p>\u5982\u679c\u4e0d\u8bbe\u7f6e\u597d\u5408\u7406\u7684buffer\u533a\u7a7a\u95f4\uff0c\u662f\u4f1a\u9020\u6210\u4e00\u4e2aRDB\u590d\u5236\u7684\u6b7b\u5faa\u73af\u3002<\/p>\n<p>\u5f53\u4e3b\u4ece\u95f4\u7684\u6570\u636e\u540c\u6b65\u5b8c\u6210\u4e4b\u540e\uff0c\u540e\u9762\u4e3b\u8282\u70b9\u7684\u6bcf\u6b21\u5199\u64cd\u4f5c\u5c31\u90fd\u4f1a\u540c\u6b65\u5230\u4ece\u8282\u70b9\uff0c\u8fd9\u6837\u8fdb\u884c\u589e\u91cf\u540c\u6b65\u4e86\u3002<\/p>\n<p>\u7531\u4e8e\u8d1f\u8f7d\u7684\u4e0d\u65ad\u4e0a\u5347\u5c31\u5bfc\u81f4\u4e86\u4e3b\u4ece\u4e4b\u95f4\u7684\u5ef6\u65f6\u53d8\u5927\uff0c\u6240\u4ee5\u5c31\u6709\u4e86\u4e0a\u9762\u6211\u8bf4\u7684\u4ece\u4ece\u540c\u6b65\u4e86\uff0c\u4e3b\u8282\u70b9\u5148\u540c\u6b65\u5230\u4e00\u90e8\u5206\u4ece\u8282\u70b9\uff0c\u7136\u540e\u7531\u4ece\u8282\u70b9\u53bb\u540c\u6b65\u5176\u4ed6\u7684\u4ece\u8282\u70b9\u3002<\/p>\n<p>\u5728Redis\u4ece2.8.18\u5f00\u59cb\u652f\u6301\u65e0\u76d8\u590d\u5236\uff0c\u4e3b\u8282\u70b9\u901a\u8fc7\u5957\u63a5\u5b57\uff0c\u4e00\u8fb9\u904d\u5386\u5185\u5b58\u4e2d\u7684\u6570\u636e\uff0c\u4e00\u8fb9\u8ba9\u6570\u636e\u53d1\u9001\u7ed9\u4ece\u8282\u70b9\uff0c\u4ece\u8282\u70b9\u548c\u4e4b\u524d\u4e00\u6837\uff0c\u5148\u5c06\u6570\u636e\u5b58\u50a8\u5728\u78c1\u76d8\u6587\u4ef6\u4e2d\uff0c\u7136\u540e\u518d\u4e00\u6b21\u6027\u52a0\u8f7d\u3002<\/p>\n<p>\u53e6\u5916\u7531\u4e8e\u4e3b\u4ece\u540c\u6b65\u662f\u5f02\u6b65\u7684\uff0c\u6240\u4ee5\u4eceRedis3.0\u4e4b\u540e\u51fa\u73b0\u4e86\u540c\u6b65\u590d\u5236\uff0c\u5c31\u662f\u901a\u8fc7wait\u547d\u4ee4\u6765\u8fdb\u884c\u63a7\u5236\uff0cwait\u547d\u4ee4\u6709\u4e24\u4e2a\u53c2\u6570\uff0c\u7b2c\u4e00\u4e2a\u662f\u4ece\u5e93\u6570\u91cf\uff0c\u7b2c\u4e8c\u4e2a\u662f\u7b49\u5f85\u4ece\u5e93\u7684\u590d\u5236\u65f6\u95f4\uff0c\u5982\u679c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u8bbe\u7f6e\u4e3a0\uff0c\u90a3\u4e48\u5c31\u662f\u4ee3\u8868\u8981\u7b49\u5f85\u6240\u6709\u4ece\u5e93\u90fd\u590d\u5236\u5b8c\u624d\u53bb\u6267\u884c\u540e\u9762\u7684\u547d\u4ee4\u3002<br \/> \u4f46\u662f\u8fd9\u6837\u5c31\u4f1a\u5b58\u5728\u4e00\u4e2a\u9690\u60a3\uff0c\u5f53\u7f51\u7edc\u5f02\u5e38\u540e\uff0cwait\u547d\u4ee4\u4f1a\u4e00\u76f4\u963b\u585e\u4e0b\u53bb\uff0c\u5bfc\u81f4Redis\u4e0d\u53ef\u7528\u3002<\/p>\n<h3>\u54e8\u5175\uff08Sentinel\uff09<\/h3>\n<p>\u54e8\u5175\u53ef\u4ee5\u76d1\u63a7Redis\u96c6\u7fa4\u7684\u5065\u5eb7\u72b6\u6001\uff0c\u5f53\u4e3b\u8282\u70b9\u6302\u6389\u4e4b\u540e\uff0c\u9009\u4e3e\u51fa\u65b0\u7684\u4e3b\u8282\u70b9\u3002\u5ba2\u6237\u7aef\u5728\u4f7f\u7528Redis\u7684\u65f6\u5019\u4f1a\u5148\u901a\u8fc7Sentinel\u6765\u83b7\u53d6\u4e3b\u8282\u70b9\u5730\u5740\uff0c\u7136\u540e\u518d\u901a\u8fc7\u4e3b\u8282\u70b9\u6765\u8fdb\u884c\u6570\u636e\u4ea4\u4e92\u3002\u5f53\u4e3b\u8282\u70b9\u6302\u6389\u4e4b\u540e\uff0c\u5ba2\u6237\u7aef\u4f1a\u518d\u6b21\u5411Sentinel\u83b7\u53d6\u4e3b\u8282\u70b9\uff0c\u8fd9\u6837\u5ba2\u6237\u7aef\u5c31\u53ef\u4ee5\u65e0\u611f\u77e5\u7684\u7ee7\u7eed\u4f7f\u7528\u4e86\u3002<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167255824263b136a20d842.jpg\" class=\"aligncenter\"><\/p>\n<p>\u54e8\u5175\u96c6\u7fa4\u5de5\u4f5c\u8fc7\u7a0b\uff0c\u4e3b\u8282\u70b9\u6302\u6389\u4e4b\u540e\u4f1a\u9009\u4e3e\u51fa\u65b0\u7684\u4e3b\u8282\u70b9\uff0c\u7136\u540e\u76d1\u63a7\u6302\u6389\u7684\u8282\u70b9\uff0c\u5f53\u6302\u6389\u7684\u8282\u70b9\u6062\u590d\u540e\uff0c\u539f\u5148\u7684\u4e3b\u8282\u70b9\u5c31\u4f1a\u53d8\u6210\u4ece\u8282\u70b9\uff0c\u4ece\u65b0\u7684\u4e3b\u8282\u70b9\u90a3\u91cc\u5efa\u7acb\u4e3b\u4ece\u5173\u7cfb\u3002<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167255824263b136a25916b.jpg\" class=\"aligncenter\"><\/p>\n<h3>\u96c6\u7fa4\u5206\u7247\uff08Redis Cluster\uff09<\/h3>\n<p>Redis Cluster\u662fRedis\u5b98\u65b9\u63a8\u8350\u7684\u96c6\u7fa4\u6a21\u5f0f\uff0cRedis Cluster\u5c06\u6240\u6709\u6570\u636e\u5212\u5206\u523016384\u4e2a\u69fd\uff08<code>slots<\/code>\uff09\u4e2d\uff0c\u6bcf\u4e2a\u8282\u70b9\u8d1f\u8d23\u4e00\u90e8\u5206\u69fd\u4f4d\u7684\u8bfb\u5199\u64cd\u4f5c\u3002<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167255824263b136a297542.jpg\" class=\"aligncenter\"><\/p>\n<h4>\u5b58\u50a8<\/h4>\n<p>Redis Cluster\u9ed8\u8ba4\u662f\u901a\u8fc7CRC16\u7b97\u6cd5\u83b7\u53d6\u5230key\u7684hash\u503c\uff0c\u7136\u540e\u518d\u5bf916384\u8fdb\u884c\u53d6\u4f59\uff08<code>CRC16(key)%16384<\/code>\uff09\uff0c\u83b7\u53d6\u5230\u7684\u69fd\u4f4d\u5728\u54ea\u4e2a\u8282\u70b9\u8d1f\u8d23\u7684\u8303\u56f4\u5185\uff08\u8fd9\u91cc\u4e00\u822c\u662f\u4f1a\u6709\u4e00\u4e2a\u69fd\u4f4d\u548c\u8282\u70b9\u7684\u6620\u5c04\u8868\u6765\u8fdb\u884c\u5feb\u901f\u5b9a\u4f4d\u8282\u70b9\u7684\uff0c\u901a\u5e38\u4f7f\u7528bitmap\u6765\u5b9e\u73b0\uff09\uff0c\u5c31\u5b58\u50a8\u5728\u54ea\u4e2a\u8282\u70b9\u4e0a\u3002<\/p>\n<h4>\u91cd\u5b9a\u5411<\/h4>\n<p>\u5f53Redis Cluster\u7684\u5ba2\u6237\u7aef\u5728\u548c\u96c6\u7fa4\u5efa\u7acb\u8fde\u63a5\u7684\u65f6\u5019\uff0c\u4e5f\u4f1a\u83b7\u5f97\u4e00\u4efd\u69fd\u4f4d\u548c\u8282\u70b9\u7684\u914d\u7f6e\u5173\u7cfb\uff08\u69fd\u4f4d\u548c\u8282\u70b9\u7684\u6620\u5c04\u8868\uff09\uff0c\u8fd9\u6837\u5f53\u5ba2\u6237\u7aef\u8981\u67e5\u627e\u67d0\u4e2akey\u65f6\uff0c\u53ef\u4ee5\u76f4\u63a5\u5b9a\u4f4d\u5230\u76ee\u6807\u8282\u70b9\u3002<\/p>\n<p>\u4f46\u662f\u5f53\u5ba2\u6237\u7aef\u53d1\u9001\u8bf7\u6c42\u65f6\uff0c\u5982\u679c\u63a5\u6536\u8bf7\u6c42\u7684\u8282\u70b9\u53d1\u73b0\u8be5\u6570\u636e\u7684\u69fd\u4f4d\u5e76\u4e0d\u5728\u5f53\u524d\u8282\u70b9\u4e0a\uff0c\u90a3\u4e48\u4f1a\u8fd4\u56de<code>MOVED<\/code>\u6307\u4ee4\u5c06\u6b63\u786e\u7684\u69fd\u4f4d\u548c\u8282\u70b9\u4fe1\u606f\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff0c\u5ba2\u6237\u63a5\u7740\u8bf7\u6c42\u6b63\u786e\u7684\u8282\u70b9\u83b7\u53d6\u6570\u636e\u3002<\/p>\n<p>\u4e00\u822c\u5ba2\u6237\u7aef\u5728\u63a5\u6536\u5230<code>MOVED<\/code>\u6307\u4ee4\u540e\uff0c\u4e5f\u4f1a\u66f4\u65b0\u81ea\u5df1\u672c\u5730\u7684\u69fd\u4f4d\u548c\u8282\u70b9\u7684\u6620\u5c04\u8868\uff0c\u8fd9\u6837\u4e0b\u6b21\u83b7\u53d6\u6570\u636e\u65f6\u5c31\u53ef\u4ee5\u76f4\u63a5\u547d\u4e2d\u4e86\u3002\u8fd9\u6574\u4e2a\u91cd\u5b9a\u5411\u7684\u8fc7\u7a0b\u5bf9\u5ba2\u6237\u7aef\u662f\u900f\u660e\u7684\u3002<\/p>\n<h4>\u6570\u636e\u8fc1\u79fb<\/h4>\n<p>\u5f53\u96c6\u7fa4\u4e2d\u65b0\u589e\u8282\u70b9\u6216\u5220\u9664\u8282\u70b9\u540e\uff0c\u8282\u70b9\u95f4\u7684\u6570\u636e\u8fc1\u79fb\u662f\u6309\u69fd\u4f4d\u4e3a\u5355\u4f4d\u7684\uff0c\u4e00\u4e2a\u69fd\u4f4d\u4e00\u4e2a\u69fd\u4f4d\u7684\u8fc1\u79fb\uff0c\u5f53\u8fc1\u79fb\u65f6\u539f\u8282\u70b9\u72b6\u6001\u5904\u4e8e\uff1a<code>magrating<\/code>\uff0c\u76ee\u6807\u8282\u70b9\u5904\u4e8e\uff1a<code>importing<\/code>\u3002<\/p>\n<p>\u5728\u8fc1\u79fb\u8fc7\u7a0b\u4e2d\uff0c\u5ba2\u6237\u7aef\u9996\u5148\u8bbf\u95ee\u65e7\u8282\u70b9\uff0c\u5982\u679c\u6570\u636e\u8fd8\u5728\u65e7\u8282\u70b9\uff0c\u90a3\u4e48\u65e7\u8282\u70b9\u6b63\u5e38\u5904\u7406\uff0c\u5982\u679c\u4e0d\u5728\u65e7\u8282\u70b9\uff0c\u5c31\u4f1a\u8fd4\u56de\u4e00\u4e2a<code>-ASK + \u76ee\u6807\u8282\u70b9\u5730\u5740<\/code>\u7684\u6307\u4ee4\uff0c\u5ba2\u6237\u7aef\u6536\u5230\u8fd9\u4e2a<code>-ASK<\/code>\u6307\u4ee4\u540e\uff0c\u5411\u76ee\u6807\u8282\u70b9\u6267\u884c\u4e00\u4e2a<code>asking<\/code>\u6307\u4ee4\uff08\u544a\u8bc9\u65b0\u8282\u70b9\uff0c\u5fc5\u987b\u5904\u7406\u5ba2\u6237\u7aef\u8fd9\u4e2a\u6570\u636e\uff09\uff0c\u7136\u540e\u518d\u5411\u76ee\u6807\u8282\u70b9\u6267\u884c\u5ba2\u6237\u7aef\u7684\u8bbf\u95ee\u6570\u636e\u7684\u6307\u4ee4\u3002<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167255824263b136a2ecd63.jpg\" class=\"aligncenter\"><\/p>\n<h4>\u5bb9\u9519<\/h4>\n<p>Redis Cluster\u53ef\u4ee5\u4e3a\u6bcf\u4e2a\u4e3b\u8282\u70b9\u8bbe\u7f6e\u591a\u4e2a\u4ece\u8282\u70b9\uff0c\u5f53\u5355\u4e2a\u4e3b\u8282\u70b9\u6302\u6389\u540e\uff0c\u96c6\u7fa4\u4f1a\u81ea\u52a8\u5c06\u5176\u4e2d\u67d0\u4e2a\u4ece\u8282\u70b9\u63d0\u5347\u4e3a\u4e3b\u8282\u70b9\uff0c\u82e5\u6ca1\u6709\u4ece\u8282\u70b9\uff0c\u90a3\u4e48\u96c6\u7fa4\u5c06\u5904\u4e8e\u4e0d\u53ef\u7528\u72b6\u6001\u3002<br \/> Redis\u63d0\u4f9b\u4e86\u4e00\u4e2a\u53c2\u6570\uff1a<code>cluster-require-full-coverage<\/code>\uff0c\u7528\u6765\u914d\u7f6e\u53ef\u4ee5\u5141\u8bb8\u90e8\u5206\u8282\u70b9\u51fa\u95ee\u9898\u540e\uff0c\u8fd8\u6709\u5176\u4ed6\u8282\u70b9\u5728\u8fd0\u884c\u65f6\u53ef\u4ee5\u6b63\u5e38\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n<p>\u53e6\u5916\u4e00\u70b9\u6bd4\u8f83\u7279\u6b8a\u7684\u662f\uff0cCluster\u4e2d\u5f53\u4e00\u4e2a\u8282\u70b9\u53d1\u73b0\u67d0\u4e2a\u5176\u4ed6\u8282\u70b9\u51fa\u73b0\u5931\u8054\u4e86\uff0c\u8fd9\u4e2a\u65f6\u5019\u95ee\u9898\u8282\u70b9\u53ea\u662f<code>PFail<\/code>\uff08<code>Possibly<\/code>-\u53ef\u80fd\u4e0b\u7ebf\uff09\uff0c\u7136\u540e\u5b83\u4f1a\u628a\u8fd9\u4e2a\u5931\u8054\u4fe1\u606f\u5e7f\u64ad\u7ed9\u5176\u4ed6\u8282\u70b9\uff0c\u5f53\u4e00\u4e2a\u8282\u70b9\u63a5\u6536\u5230\u67d0\u4e2a\u8282\u70b9\u7684\u5931\u8054\u4fe1\u606f\u8fbe\u5230\u96c6\u7fa4\u7684\u5927\u591a\u6570\u65f6\uff0c\u5c31\u53ef\u4ee5\u5c06\u5931\u8054\u8282\u70b9\u6807\u8bb0\u4e3a\u4e0b\u7ebf\uff0c\u7136\u540e\u5c06\u4e0b\u7ebf\u4fe1\u606f\u5e7f\u64ad\u7ed9\u5176\u4ed6\u8282\u70b9\u3002\u82e5\u5931\u8054\u8282\u70b9\u4e3a\u4e3b\u8282\u70b9\uff0c\u90a3\u4e48\u5c06\u7acb\u5373\u5bf9\u8be5\u8282\u70b9\u8fdb\u884c\u4e3b\u4ece\u5207\u6362\u3002<\/p>\n<p>Redis\u9ad8\u53ef\u7528\u5c31\u5148\u8bf4\u5230\u8fd9\u91cc\u5427\uff0c\u540e\u9762\u5176\u5b9e\u8fd8\u6709Codis\uff0c\u4f46\u662f\u76ee\u524dCluster\u9010\u6e10\u6d41\u884c\u8d77\u6765\u4e86\uff0cCodis\u7684\u7ade\u4e89\u529b\u9010\u6e10\u88ab\u8695\u98df\uff0c\u800c\u4e14\u5bf9\u65b0\u7248\u672c\u7684\u652f\u6301\uff0c\u66f4\u65b0\u7684\u4e5f\u6bd4\u8f83\u6162\uff0c\u6240\u4ee5\u8fd9\u91cc\u5c31\u4e0d\u8bf4\u5b83\u4e86\uff0c\u611f\u5174\u8da3\u7684\u53ef\u4ee5\u81ea\u5df1\u53bb\u4e86\u89e3\u4e00\u4e0b\uff0c\u56fd\u4eba\u5f00\u6e90\u7684Redis\u96c6\u7fa4\u6a21\u5f0fCodis\u3002<\/p>\n<h3>\u6301\u4e45\u5316<\/h3>\n<p>Redis\u6301\u4e45\u5316\u7684\u610f\u4e49\u5728\u4e8e\uff0c\u5f53\u51fa\u73b0\u5b95\u673a\u95ee\u9898\u540e\uff0c\u80fd\u5c06\u6570\u636e\u6062\u590d\u5230\u7f13\u5b58\u4e2d\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e24\u79cd\u6301\u4e45\u5316\u673a\u5236\uff1a\u4e00\u79cd\u662f\u5feb\u7167\uff08RDB\uff09\uff0c\u4e00\u79cd\u662fAOF\u65e5\u5fd7\u3002<\/p>\n<p>\u5feb\u7167\u662f\u4e00\u6b21\u5168\u91cf\u5907\u4efd\uff0c\u800cAOF\u662f\u589e\u91cf\u5907\u4efd\u3002\u5feb\u7167\u662f\u5185\u5b58\u6570\u636e\u7684\u4e8c\u8fdb\u5236\u5e8f\u5217\u5316\u5f62\u5f0f\uff0c\u5b58\u50a8\u4e0a\u975e\u5e38\u7d27\u51d1\uff0c\u800cAOF\u65e5\u5fd7\u8bb0\u5f55\u7684\u662f\u5185\u5b58\u6570\u636e\u4fee\u6539\u7684\u6307\u4ee4\u8bb0\u5f55\u6587\u672c\u3002<\/p>\n<h3>\u5feb\u7167\u5907\u4efd\uff08RDB\uff09<\/h3>\n<p>\u56e0\u4e3aRedis\u662f\u5355\u7ebf\u7a0b\u7684\uff0c\u6240\u4ee5\u5728\u505a\u5feb\u7167\u6301\u4e45\u5316\u7684\u65f6\u5019\uff0c\u901a\u5e38\u6709\u4e24\u4e2a\u9009\u62e9\uff0csave\u547d\u4ee4\uff0c\u4f1a\u963b\u585e\u7ebf\u7a0b\uff0c\u76f4\u5230\u5907\u4efd\u5b8c\u6210\uff1bbgsave\u4f1a\u5f02\u6b65\u7684\u6267\u884c\u5907\u4efd\uff0c\u5176\u5b9e\u662ffork\u51fa\u4e86\u4e00\u4e2a\u5b50\u8fdb\u7a0b\uff0c\u7528\u5b50\u8fdb\u7a0b\u53bb\u6267\u884c\u5feb\u7167\u6301\u4e45\u5316\u64cd\u4f5c\uff0c\u5c06\u6570\u636e\u4fdd\u5b58\u5728\u4e00\u4e2a.rdb\u6587\u4ef6\u4e2d\u3002<\/p>\n<p>\u5b50\u8fdb\u7a0b\u521a\u521a\u4ea7\u751f\u7684\u65f6\u5019\uff0c\u662f\u548c\u7236\u8fdb\u7a0b\u5171\u4eab\u5185\u5b58\u4e2d\u7684\u6570\u636e\u7684\uff0c\u4f46\u662f\u5b50\u8fdb\u7a0b\u505a\u6301\u4e45\u5316\u65f6\uff0c\u662f\u4e0d\u4f1a\u4fee\u6539\u6570\u636e\u7684\uff0c\u800c\u7236\u8fdb\u7a0b\u662f\u8981\u6301\u7eed\u63d0\u4f9b\u670d\u52a1\u7684\uff0c\u6240\u4ee5\u7236\u8fdb\u7a0b\u5c31\u4f1a\u6301\u7eed\u7684\u4fee\u6539\u5185\u5b58\u4e2d\u7684\u6570\u636e\uff0c\u8fd9\u4e2a\u65f6\u5019\u7236\u8fdb\u7a0b\u5c31\u4f1a\u5c06\u5185\u5b58\u4e2d\u7684\u6570\u636e\uff0cCopy\u51fa\u4e00\u4efd\u6765\u8fdb\u884c\u4fee\u6539\u3002<\/p>\n<p>\u7236\u8fdb\u7a0bcopy\u7684\u6570\u636e\u662f\u4ee5\u6570\u636e\u9875\u4e3a\u5355\u4f4d\u7684\uff084k\u4e00\u9875\uff09\uff0c\u5bf9\u90a3\u4e00\u9875\u6570\u636e\u8fdb\u884c\u4fee\u6539\u5c31copy\u54ea\u4e00\u9875\u7684\u6570\u636e\u3002<\/p>\n<p>\u5b50\u8fdb\u7a0b\u7531\u4e8e\u6570\u636e\u6ca1\u6709\u53d8\u5316\u5c31\u4f1a\u4e00\u76f4\u7684\u53bb\u904d\u5386\u6570\u636e\uff0c\u8fdb\u7a0b\u6301\u4e45\u5316\u64cd\u4f5c\u4e86\uff0c\u8fd9\u5c31\u662f\u53ea\u4fdd\u7559\u4e86\u521b\u5efa\u5b50\u8fdb\u7a0b\u7684\u65f6\u5019\u7684\u5feb\u7167\u3002<\/p>\n<p>\u90a3\u4e48RDB\u662f\u5728\u4ec0\u4e48\u65f6\u5019\u89e6\u53d1\u7684\u5462\uff1f<\/p>\n<pre>\n# save \n   \n    \n      save 60 10000 save 300 10 \n    \n   <\/pre>\n<p>\u4e0a\u8fd9\u6bb5\u914d\u7f6e\u5c31\u662f\u5728redis.conf\u6587\u4ef6\u4e2d\u914d\u7f6e\u7684\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u65f6\u95f4\u5355\u4f4d\u662f\u79d2\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6267\u884c\u6570\u636e\u53d8\u5316\u7684\u6b21\u6570\u3002<br \/> \u610f\u601d\u5c31\u662f\u8bf4\uff1a300\u79d2\u4e4b\u5185\u81f3\u5c11\u53d1\u751f10\u6b21\u5199\u64cd\u4f5c\u3001<br \/> 60\u79d2\u4e4b\u5185\u53d1\u751f\u81f3\u5c1110000\u6b21\u5199\u64cd\u4f5c\uff0c\u53ea\u8981\u6ee1\u8db3\u4efb\u4e00\u6761\u4ef6\uff0c\u5747\u4f1a\u89e6\u53d1bgsave<\/p>\n<h3>\u589e\u91cf\u65e5\u5fd7\u5907\u4efd\uff08AOF\uff09<\/h3>\n<p>Redis\u5728\u63a5\u6536\u5230\u5ba2\u6237\u7aef\u8bf7\u6c42\u6307\u4ee4\u540e\uff0c\u4f1a\u5148\u8fdb\u884c\u6821\u9a8c\uff0c\u6821\u9a8c\u6210\u529f\u540e\uff0c\u7acb\u5373\u5c06\u6307\u4ee4\u5b58\u50a8\u5230AOF\u65e5\u5fd7\u6587\u4ef6\u4e2d\uff0c\u5c31\u662f\u8bf4\uff0cRedis\u662f\u5148\u8bb0\u5f55\u65e5\u5fd7\uff0c\u518d\u6267\u884c\u547d\u4ee4\u3002\u8fd9\u6837\u5373\u4f7f\u547d\u4ee4\u8fd8\u6ca1\u6267\u884c\u7a81\u7136\u5b95\u673a\u4e86\uff0c\u901a\u8fc7AOF\u65e5\u5fd7\u6587\u4ef6\u4e5f\u662f\u53ef\u4ee5\u6062\u590d\u7684\u3002<\/p>\n<h4>AOF\u91cd\u5199<\/h4>\n<p>AOF\u65e5\u5fd7\u6587\u4ef6\uff0c\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0c\u4f1a\u8d8a\u6765\u8d8a\u5927\uff0c\u6240\u4ee5\u5c31\u9700\u8981\u8fdb\u884c\u91cd\u5199\u7626\u8eab\u3002AOF\u91cd\u5199\u7684\u539f\u7406\u5c31\u662f\uff0cfork\u4e00\u4e2a\u5b50\u8fdb\u7a0b\uff0c\u5bf9\u5185\u5b58\u8fdb\u884c\u904d\u5386\uff0c\u7136\u540e\u751f\u6210\u4e00\u7cfb\u5217\u7684Redis\u6307\u4ee4\uff0c\u7136\u540e\u5e8f\u5217\u5316\u5230\u4e00\u4e2a\u65b0\u7684aof\u6587\u4ef6\u4e2d\u3002\u7136\u540e\u518d\u5c06\u904d\u5386\u5185\u5b58\u9636\u6bb5\u7684\u589e\u91cf\u65e5\u5fd7\uff0c\u8ffd\u52a0\u5230\u65b0\u7684aof\u6587\u4ef6\u4e2d\uff0c\u8ffd\u52a0\u5b8c\u6210\u540e\u7acb\u5373\u66ff\u6362\u65e7\u7684aof\u6587\u4ef6\uff0c\u8fd9\u6837\u5c31\u5b8c\u6210\u4e86AOF\u7684\u7626\u8eab\u91cd\u5199\u3002<\/p>\n<h4>fsync<\/h4>\n<p>\u56e0\u4e3aAOF\u662f\u4e00\u4e2a\u5199\u6587\u4ef6\u7684IO\u64cd\u4f5c\uff0c\u662f\u6bd4\u8f83\u8017\u65f6\u3002\u6240\u4ee5AOF\u65e5\u5fd7\u5e76\u4e0d\u662f\u76f4\u63a5\u5199\u5165\u5230\u65e5\u5fd7\u6587\u4ef6\u7684\uff0c\u800c\u662f\u5148\u5199\u5230\u4e00\u4e2a\u5185\u6838\u7684\u7f13\u5b58\u4e2d\uff0c\u7136\u540e\u901a\u8fc7\u5f02\u6b65\u5237\u810f\uff0c\u6765\u5c06\u6570\u636e\u4fdd\u5b58\u5230\u78c1\u76d8\u7684\u3002<\/p>\n<p>\u7531\u4e8e\u8fd9\u4e2a\u60c5\u51b5\uff0c\u5c31\u5bfc\u81f4\u4e86\u4f1a\u6709\u8fd8\u6ca1\u6765\u5f97\u6025\u5237\u810f\u7136\u540e\u5c31\u5b95\u673a\u4e86\uff0c\u5bfc\u81f4\u6570\u636e\u4e22\u5931\u7684\u98ce\u9669\u3002<\/p>\n<p>\u6240\u4ee5Redis\u63d0\u4f9b\u4e86\u4e00\u4e2a\u914d\u7f6e\uff0c\u53ef\u4ee5\u624b\u52a8\u7684\u6765\u9009\u62e9\u5237\u810f\u7684\u9891\u7387\u3002<\/p>\n<ul>\n<li>always\uff1a\u6bcf\u4e00\u6761AOF\u8bb0\u5f55\u90fd\u7acb\u5373\u540c\u6b65\u5230\u6587\u4ef6\uff0c\u6027\u80fd\u5f88\u4f4e\uff0c\u4f46\u8f83\u4e3a\u5b89\u5168\u3002<\/li>\n<li>everysec\uff1a\u6bcf\u79d2\u540c\u6b65\u4e00\u6b21\uff0c\u6027\u80fd\u548c\u5b89\u5168\u90fd\u6bd4\u8f83\u4e2d\u5eb8\u7684\u65b9\u5f0f\uff0c\u4e5f\u662fredis\u63a8\u8350\u7684\u65b9\u5f0f\u3002\u5982\u679c\u9047\u5230\u7269\u7406\u670d\u52a1\u5668\u6545\u969c\uff0c\u53ef\u80fd\u5bfc\u81f4\u6700\u591a1\u79d2\u7684AOF\u8bb0\u5f55\u4e22\u5931\u3002<\/li>\n<li>no\uff1aRedis\u6c38\u4e0d\u76f4\u63a5\u8c03\u7528\u6587\u4ef6\u540c\u6b65\uff0c\u800c\u662f\u8ba9\u64cd\u4f5c\u7cfb\u7edf\u6765\u51b3\u5b9a\u4f55\u65f6\u540c\u6b65\u78c1\u76d8\u3002\u6027\u80fd\u8f83\u597d\uff0c\u4f46\u5f88\u4e0d\u5b89\u5168\u3002<\/li>\n<\/ul>\n<p>AOF\u9ed8\u8ba4\u662f\u5173\u95ed\u7684\uff0c\u9700\u8981\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u624b\u52a8\u5f00\u542f\u3002<\/p>\n<pre>\n# \u53ea\u6709\u5728\u201cyes\u201d\u4e0b\uff0caof\u91cd\u5199\/\u6587\u4ef6\u540c\u6b65\u7b49\u7279\u6027\u624d\u4f1a\u751f\u6548 \nappendonly yes \n## \u6307\u5b9aaof\u6587\u4ef6\u540d\u79f0 \nappendfilename appendonly.aof \n## \u6307\u5b9aaof\u64cd\u4f5c\u4e2d\u6587\u4ef6\u540c\u6b65\u7b56\u7565\uff0c\u6709\u4e09\u4e2a\u5408\u6cd5\u503c\uff1aalways everysec no,\u9ed8\u8ba4\u4e3aeverysec \nappendfsync everysec \n## \u5728aof-rewrite\u671f\u95f4\uff0cappendfsync\u662f\u5426\u6682\u7f13\u6587\u4ef6\u540c\u6b65\uff0c\"no\"\u8868\u793a\u201c\u4e0d\u6682\u7f13\u201d\uff0c\u201cyes\u201d\u8868\u793a\u201c\u6682\u7f13\u201d\uff0c\u9ed8\u8ba4\u4e3a\u201cno\u201d \nno-appendfsync-on-rewrite no \n## aof\u6587\u4ef6rewrite\u89e6\u53d1\u7684\u6700\u5c0f\u6587\u4ef6\u5c3a\u5bf8(mb,gb),\u53ea\u6709\u5927\u4e8e\u6b64aof\u6587\u4ef6\u5927\u4e8e\u6b64\u5c3a\u5bf8\u662f\u624d\u4f1a\u89e6\u53d1rewrite\uff0c\u9ed8\u8ba4\u201c64mb\u201d\uff0c\u5efa\u8bae\u201c512mb\u201d \nauto-aof-rewrite-min-size 64mb <\/pre>\n<h3>Redis4.0\u6df7\u5408\u6301\u4e45\u5316<\/h3>\n<p>Redis4.0\u63d0\u4f9b\u4e86\u4e00\u79cd\u65b0\u7684\u6301\u4e45\u5316\u673a\u5236\uff0c\u5c31\u662fRDB\u548cAOF\u7ed3\u5408\u4f7f\u7528\uff0c\u5c06rdb\u6587\u4ef6\u5185\u5bb9\u548caof\u6587\u4ef6\u5b58\u5728\u4e00\u8d77\uff0cAOF\u4e2d\u4fdd\u5b58\u7684\u4e0d\u518d\u662f\u5168\u90e8\u6570\u636e\u4e86\uff0c\u800c\u662f\u4eceRDB\u5f00\u59cb\u7684\u5230\u7ed3\u675f\u7684\u589e\u91cf\u65e5\u5fd7\u3002<\/p>\n<p>\u8fd9\u6837\u5728Redis\u6062\u590d\u6570\u636e\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u5148\u5047\u88c5RDB\u6587\u4ef6\u4e2d\u7684\u5185\u5bb9\uff0c\u7136\u540e\u5728\u987a\u5e8f\u6267\u884cAOF\u65e5\u5fd7\u4e2d\u6307\u4ee4\uff0c\u8fd9\u6837\u5c31\u5c06Redis\u91cd\u542f\u65f6\u6062\u590d\u6570\u636e\u7684\u6548\u7387\u5f97\u5230\u4e86\u5927\u5e45\u5ea6\u63d0\u5347\u3002<\/p>\n<h3>\u7ed3\u5c3e<\/h3>\n<p>\u6069\uff0c\u8fd9\u6b21\u5c31\u5148\u603b\u7ed3\u5230\u8fd9\u91cc\u5427\uff0c\u540e\u9762\u4f1a\u7ee7\u7eed\u603b\u7ed3Redis\u76f8\u5173\u77e5\u8bc6\uff0cLRU\u3001LFU\u3001\u5185\u5b58\u6dd8\u6c70\u7b56\u7565\uff0c\u7ba1\u9053\u7b49\u7b49\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis\u4e3a\u4ec0\u4e48\u5feb\u5982\u4f55\u5b9e\u73b0\u9ad8\u53ef\u7528&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-201286","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201286","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=201286"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201286\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201286"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201286"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}