\u80cc\u666f<\/strong><\/div>\n
\u4e91\u6570\u636e\u5e93Redis\u7248\u4e0d\u7ba1\u4e3b\u4ece\u7248\u8fd8\u662f\u96c6\u7fa4\u89c4\u683c\uff0creplica\u4f5c\u4e3a\u5907\u5e93\u4e0d\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\uff0c\u53ea\u6709\u5728\u53d1\u751fHA\u7684\u65f6\u5019\uff0creplica\u63d0\u5347\u4e3amaster\u540e\u624d\u627f\u62c5\u8bfb\u5199\u6d41\u91cf\u3002\u8fd9\u79cd\u67b6\u6784\u8bfb\u5199\u8bf7\u6c42\u90fd\u5728master\u4e0a\u5b8c\u6210\uff0c\u4e00\u81f4\u6027\u8f83\u9ad8\uff0c\u4f46\u6027\u80fd\u53d7\u5230master\u6570\u91cf\u7684\u9650\u5236\u3002\u7ecf\u5e38\u6709\u7528\u6237\u6570\u636e\u8f83\u5c11\uff0c\u4f46\u56e0\u4e3a\u6d41\u91cf\u6216\u8005\u5e76\u53d1\u592a\u9ad8\u800c\u4e0d\u5f97\u4e0d\u5347\u7ea7\u5230\u66f4\u5927\u7684\u96c6\u7fa4\u89c4\u683c\u3002
\n\u4e3a\u6ee1\u8db3\u8bfb\u591a\u5199\u5c11\u7684\u4e1a\u52a1\u573a\u666f\uff0c\u6700\u5927\u5316\u8282\u7ea6\u7528\u6237\u6210\u672c\uff0c\u4e91\u6570\u636e\u5e93Redis\u7248\u63a8\u51fa\u4e86\u8bfb\u5199\u5206\u79bb\u89c4\u683c\uff0c\u4e3a\u7528\u6237\u63d0\u4f9b\u900f\u660e\u3001\u9ad8\u53ef\u7528\u3001\u9ad8\u6027\u80fd\u3001\u9ad8\u7075\u6d3b\u7684\u8bfb\u5199\u5206\u79bb\u670d\u52a1\u3002<\/p>\n
\u67b6\u6784<\/strong><\/div>\n
Redis\u96c6\u7fa4\u6a21\u5f0f\u6709redis-proxy\u3001master\u3001replica\u3001HA\u7b49\u51e0\u4e2a\u89d2\u8272\u3002\u5728\u8bfb\u5199\u5206\u79bb\u5b9e\u4f8b\u4e2d\uff0c\u65b0\u589eread-only replica\u89d2\u8272\u6765\u627f\u62c5\u8bfb\u6d41\u91cf\uff0creplica\u4f5c\u4e3a\u70ed\u5907\u4e0d\u63d0\u4f9b\u670d\u52a1\uff0c\u67b6\u6784\u4e0a\u4fdd\u6301\u5bf9\u73b0\u6709\u96c6\u7fa4\u89c4\u683c\u7684\u517c\u5bb9\u6027\u3002redis-proxy\u6309\u6743\u91cd\u5c06\u8bfb\u5199\u8bf7\u6c42\u8f6c\u53d1\u5230master\u6216\u8005\u67d0\u4e2aread-only replica\u4e0a\uff1bHA\u8d1f\u8d23\u76d1\u63a7DB\u8282\u70b9\u7684\u5065\u5eb7\u72b6\u6001\uff0c\u5f02\u5e38\u65f6\u53d1\u8d77\u4e3b\u4ece\u5207\u6362\u6216\u91cd\u642dread-only replica\uff0c\u5e76\u66f4\u65b0\u8def\u7531\u3002<\/p>\n
\u4e00\u822c\u6765\u8bf4\uff0c\u6839\u636emaster\u548cread-only replica\u7684\u6570\u636e\u540c\u6b65\u65b9\u5f0f\uff0c\u53ef\u4ee5\u5206\u4e3a\u4e24\u79cd\u67b6\u6784\uff1a\u661f\u578b\u590d\u5236\u548c\u94fe\u5f0f\u590d\u5236\u3002<\/p>\n
\u661f\u578b\u590d\u5236<\/strong><\/span><\/div>\n
\u661f\u578b\u590d\u5236\u5c31\u662f\u5c06\u6240\u6709\u7684read-only replica\u76f4\u63a5\u548cmaster\u4fdd\u6301\u540c\u6b65\uff0c\u6bcf\u4e2aread-only replica\u4e4b\u95f4\u76f8\u4e92\u72ec\u7acb\uff0c\u4efb\u4f55\u4e00\u4e2a\u8282\u70b9\u5f02\u5e38\u4e0d\u5f71\u54cd\u5230\u5176\u4ed6\u8282\u70b9\uff0c\u540c\u65f6\u56e0\u4e3a\u590d\u5236\u94fe\u6bd4\u8f83\u77ed\uff0cread-only replica\u4e0a\u7684\u590d\u5236\u5ef6\u8fdf\u6bd4\u8f83\u5c0f\u3002<\/p>\n
Redis\u662f\u5355\u8fdb\u7a0b\u5355\u7ebf\u7a0b\u6a21\u578b\uff0c\u4e3b\u4ece\u4e4b\u95f4\u7684\u6570\u636e\u590d\u5236\u4e5f\u5728\u4e3b\u7ebf\u7a0b\u4e2d\u5904\u7406\uff0cread-only replica\u6570\u91cf\u8d8a\u591a\uff0c\u6570\u636e\u540c\u6b65\u5bf9master\u7684CPU\u6d88\u8017\u5c31\u8d8a\u4e25\u91cd\uff0c\u96c6\u7fa4\u7684\u5199\u5165\u6027\u80fd\u4f1a\u968f\u7740read-only replica\u7684\u589e\u52a0\u800c\u964d\u4f4e\u3002\u6b64\u5916\uff0c\u661f\u578b\u67b6\u6784\u4f1a\u8ba9master\u7684\u51fa\u53e3\u5e26\u5bbd\u968f\u7740read-only replica\u7684\u589e\u52a0\u800c\u6210\u500d\u589e\u957f\u3002Master\u4e0a\u8f83\u9ad8\u7684CPU\u548c\u7f51\u7edc\u8d1f\u8f7d\u4f1a\u62b5\u6d88\u6389\u661f\u578b\u590d\u5236\u5ef6\u8fdf\u8f83\u4f4e\u7684\u4f18\u52bf\uff0c\u56e0\u6b64\uff0c\u661f\u578b\u590d\u5236\u67b6\u6784\u4f1a\u5e26\u6765\u6bd4\u8f83\u4e25\u91cd\u7684\u6269\u5c55\u95ee\u9898\uff0c\u6574\u4e2a\u96c6\u7fa4\u7684\u6027\u80fd\u4f1a\u53d7\u9650\u4e8emaster\u3002<\/p>\n
$\"\"$ <\/div>\n
\u94fe\u5f0f\u590d\u5236<\/strong><\/span><\/div>\n
\u94fe\u5f0f\u590d\u5236\u5c06\u6240\u6709\u7684read-only replica\u7ec4\u7ec7\u6210\u4e00\u4e2a\u590d\u5236\u94fe\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff0cmaster\u53ea\u9700\u8981\u5c06\u6570\u636e\u540c\u6b65\u7ed9replica\u548c\u590d\u5236\u94fe\u4e0a\u7684\u7b2c\u4e00\u4e2aread-only replica\u3002<\/p>\n
\u94fe\u5f0f\u590d\u5236\u89e3\u51b3\u4e86\u661f\u578b\u590d\u5236\u7684\u6269\u5c55\u95ee\u9898\uff0c\u7406\u8bba\u4e0a\u53ef\u4ee5\u65e0\u9650\u589e\u52a0read-only replica\u7684\u6570\u91cf\uff0c\u968f\u7740\u8282\u70b9\u7684\u589e\u52a0\u6574\u4e2a\u96c6\u7fa4\u7684\u6027\u80fd\u4e5f\u53ef\u4ee5\u57fa\u672c\u4e0a\u5448\u7ebf\u6027\u589e\u957f\u3002<\/p>\n
\u94fe\u5f0f\u590d\u5236\u7684\u67b6\u6784\u4e0b\uff0c\u590d\u5236\u94fe\u8d8a\u957f\uff0c\u590d\u5236\u94fe\u672b\u7aef\u7684read-only replica\u548cmaster\u4e4b\u95f4\u7684\u540c\u6b65\u5ef6\u8fdf\u5c31\u8d8a\u5927\uff0c\u8003\u8651\u5230\u8bfb\u5199\u5206\u79bb\u4e3b\u8981\u4f7f\u7528\u5728\u5bf9\u4e00\u81f4\u6027\u8981\u6c42\u4e0d\u9ad8\u7684\u573a\u666f\u4e0b\uff0c\u8fd9\u4e2a\u7f3a\u70b9\u4e00\u822c\u53ef\u4ee5\u63a5\u53d7\u3002\u4f46\u662f\u5982\u679c\u590d\u5236\u94fe\u4e2d\u7684\u67d0\u4e2a\u8282\u70b9\u5f02\u5e38\uff0c\u4f1a\u5bfc\u81f4\u4e0b\u6e38\u7684\u6240\u6709\u8282\u70b9\u6570\u636e\u90fd\u4f1a\u5927\u5e45\u6ede\u540e\u3002\u66f4\u52a0\u4e25\u91cd\u7684\u662f\u8fd9\u53ef\u80fd\u5e26\u6765\u5168\u91cf\u540c\u6b65\uff0c\u5e76\u4e14\u5168\u91cf\u540c\u6b65\u5c06\u4e00\u76f4\u4f20\u9012\u5230\u590d\u5236\u94fe\u7684\u672b\u7aef\uff0c\u8fd9\u4f1a\u5bf9\u670d\u52a1\u5e26\u6765\u4e00\u5b9a\u7684\u5f71\u54cd\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u8bfb\u5199\u5206\u79bb\u7684Redis\u90fd\u4f7f\u7528\u963f\u91cc\u4e91\u4f18\u5316\u540e\u7684binlog\u590d\u5236\u7248\u672c\uff0c\u6700\u5927\u7a0b\u5ea6\u7684\u964d\u4f4e\u5168\u91cf\u540c\u6b65\u7684\u6982\u7387\u3002<\/p>\n
$\"\"$ <\/div>\n
\u7ed3\u5408\u4e0a\u8ff0\u7684\u8ba8\u8bba\u548c\u6bd4\u8f83\uff0cRedis\u8bfb\u5199\u5206\u79bb\u9009\u62e9\u94fe\u5f0f\u590d\u5236\u7684\u67b6\u6784\u3002<\/p>\n
Redis\u8bfb\u5199\u5206\u79bb\u4f18\u52bf<\/strong><\/div>\n
\u900f\u660e\u517c\u5bb9<\/strong><\/span><\/div>\n
\u8bfb\u5199\u5206\u79bb\u548c\u666e\u901a\u96c6\u7fa4\u89c4\u683c\u4e00\u6837\uff0c\u90fd\u4f7f\u7528\u4e86redis-proxy\u505a\u8bf7\u6c42\u8f6c\u53d1\uff0c\u591a\u5206\u7247\u4ee4\u4f7f\u7528\u5b58\u5728\u4e00\u5b9a\u7684\u9650\u5236\uff0c\u4f46\u4ece\u4e3b\u4ece\u5347\u7ea7\u5355\u5206\u7247\u8bfb\u5199\u5206\u79bb\uff0c\u6216\u8005\u4ece\u96c6\u7fa4\u5347\u7ea7\u5230\u591a\u5206\u7247\u7684\u8bfb\u5199\u5206\u79bb\u96c6\u7fa4\u53ef\u4ee5\u505a\u5230\u5b8c\u5168\u517c\u5bb9\u3002<\/p>\n
\u7528\u6237\u548credis-proxy\u5efa\u7acb\u8fde\u63a5\uff0credis-proxy\u4f1a\u8bc6\u522b\u51fa\u5ba2\u6237\u7aef\u8fde\u63a5\u53d1\u9001\u8fc7\u6765\u7684\u8bf7\u6c42\u662f\u8bfb\u8fd8\u662f\u5199\uff0c\u7136\u540e\u6309\u7167\u6743\u91cd\u4f5c\u8d1f\u8f7d\u5747\u8861\uff0c\u5c06\u8bf7\u6c42\u8f6c\u53d1\u5230\u540e\u7aef\u4e0d\u540c\u7684DB\u8282\u70b9\u4e2d\uff0c\u5199\u8bf7\u6c42\u8f6c\u53d1\u7ed9master\uff0c\u8bfb\u64cd\u4f5c\u8f6c\u53d1\u7ed9read-only replica\uff08master\u9ed8\u8ba4\u4e5f\u63d0\u4f9b\u8bfb\uff0c\u53ef\u4ee5\u901a\u8fc7\u6743\u91cd\u63a7\u5236\uff09\u3002<\/p>\n
\u7528\u6237\u53ea\u9700\u8981\u8d2d\u4e70\u8bfb\u5199\u5206\u79bb\u89c4\u683c\u7684\u5b9e\u4f8b\uff0c\u76f4\u63a5\u4f7f\u7528\u4efb\u4f55\u5ba2\u6237\u7aef\u5373\u53ef\u76f4\u63a5\u4f7f\u7528\uff0c\u4e1a\u52a1\u4e0d\u7528\u505a\u4efb\u4f55\u4fee\u6539\u5c31\u53ef\u4ee5\u5f00\u59cb\u4eab\u53d7\u8bfb\u5199\u5206\u79bb\u670d\u52a1\u5e26\u6765\u7684\u5de8\u5927\u6027\u80fd\u63d0\u5347\uff0c\u63a5\u5165\u6210\u672c\u51e0\u4e4e\u4e3a0\u3002<\/p>\n
\u9ad8\u53ef\u7528<\/strong><\/span><\/div>\n
\u9ad8\u53ef\u7528\u6a21\u5757\uff08HA\uff09\u76d1\u63a7\u6240\u6709DB\u8282\u70b9\u7684\u5065\u5eb7\u72b6\u6001\uff0c\u4e3a\u6574\u4e2a\u5b9e\u4f8b\u7684\u53ef\u7528\u6027\u4fdd\u9a7e\u62a4\u822a\u3002master\u5b95\u673a\u65f6\u81ea\u52a8\u5207\u6362\u5230\u65b0\u4e3b\u3002\u5982\u679c\u67d0\u4e2aread-only replica\u5b95\u673a\uff0cHA\u4e5f\u80fd\u53ca\u65f6\u611f\u77e5\uff0c\u7136\u540e\u91cd\u642d\u4e00\u4e2a\u65b0\u7684read-only replica\uff0c\u4e0b\u7ebf\u5b95\u673a\u8282\u70b9\u3002<\/p>\n
\u9664HA\u4e4b\u5916\uff0credis-proxy\u4e5f\u80fd\u5b9e\u65f6\u611f\u77e5\u6bcf\u4e2aread-only replica\u7684\u72b6\u6001\u3002\u5728\u67d0\u4e2aread-only replica\u5f02\u5e38\u671f\u95f4\uff0credis-proxy\u4f1a\u81ea\u52a8\u964d\u4f4e\u8fd9\u4e2a\u8282\u70b9\u7684\u6743\u91cd\uff0c\u5982\u679c\u53d1\u73b0\u67d0\u4e2aread-only replica\u8fde\u7eed\u5931\u8d25\u8d85\u8fc7\u4e00\u5b9a\u6b21\u6570\u4ee5\u540e\uff0c\u4f1a\u6682\u65f6\u5c4f\u853d\u5f02\u5e38\u8282\u70b9\uff0c\u76f4\u5230\u5f02\u5e38\u6d88\u5931\u4ee5\u540e\u624d\u4f1a\u6062\u590d\u5176\u6b63\u5e38\u6743\u91cd\u3002<\/p>\n
redis-proxy\u548cHA\u4e00\u8d77\u505a\u5230\u5c3d\u91cf\u51cf\u5c11\u4e1a\u52a1\u5bf9\u540e\u7aef\u5f02\u5e38\u7684\u611f\u77e5\uff0c\u63d0\u9ad8\u670d\u52a1\u53ef\u7528\u6027\u3002<\/p>\n
\u9ad8\u6027\u80fd<\/strong><\/span><\/div>\n
\u5bf9\u4e8e\u8bfb\u591a\u5199\u5c11\u7684\u4e1a\u52a1\u573a\u666f\uff0c\u76f4\u63a5\u4f7f\u7528\u96c6\u7fa4\u7248\u672c\u5f80\u5f80\u4e0d\u662f\u6700\u5408\u9002\u7684\u65b9\u6848\uff0c\u73b0\u5728\u8bfb\u5199\u5206\u79bb\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u9009\u62e9\uff0c\u4e1a\u52a1\u53ef\u4ee5\u6839\u636e\u573a\u666f\u9009\u62e9\u6700\u9002\u5408\u7684\u89c4\u683c\uff0c\u5145\u5206\u5229\u7528\u6bcf\u4e00\u4e2aread-only replica\u7684\u8d44\u6e90\u3002<\/p>\n
\u76ee\u524d\u5355shard\u5bf9\u5916\u552e\u53561 master + 1\/3\/5 read-only replica\u591a\u79cd\u89c4\u683c\uff08\u5982\u679c\u6709\u66f4\u5927\u7684\u9700\u6c42\u53ef\u4ee5\u63d0\u5de5\u5355\u53cd\u9988\uff09\uff0c\u63d0\u4f9b60\u4e07QPS\u548c192 MB\/s\u7684\u670d\u52a1\u80fd\u529b\uff0c\u5728\u5b8c\u5168\u517c\u5bb9\u6240\u6709\u547d\u4ee4\u7684\u60c5\u51b5\u4e0b\u7a81\u7834\u5355\u673a\u7684\u8d44\u6e90\u9650\u5236\u3002\u540e\u7eed\u5c06\u53bb\u6389\u89c4\u683c\u9650\u5236\uff0c\u8ba9\u7528\u6237\u6839\u636e\u4e1a\u52a1\u6d41\u91cf\u968f\u65f6\u81ea\u7531\u7684\u589e\u52a0\u6216\u51cf\u5c11read-only replica\u6570\u91cf\u3002<\/p>\n
$\"\"$ <\/div>\n
\u540e\u7eed<\/strong><\/div>\n
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