{"id":201442,"date":"2025-05-10T10:14:16","date_gmt":"2025-05-10T02:14:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201442\/"},"modified":"2025-05-10T10:14:16","modified_gmt":"2025-05-10T02:14:16","slug":"%e5%85%a8%e9%9d%a2%e8%a7%a3%e6%9e%90redis%e4%b8%bb%e4%bb%8e%e5%a4%8d%e5%88%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201442\/","title":{"rendered":"\u5168\u9762\u89e3\u6790Redis\u4e3b\u4ece\u590d\u5236"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5168\u9762\u89e3\u6790Redis\u4e3b\u4ece\u590d\u5236<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u66f4\u5feb\uff0c\u4e00\u65e6\u505c\u6b62\u4e86\u5b66\u4e60\uff0c\u5f88\u5feb\u5c31\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u7cbe\u8fdb\u81ea\u5df1\u7684\u6280\u672f\uff0c\u5c24\u5176\u662f\u521d\u5b66\u8005\u3002\u4eca\u5929golang\u5b66\u4e60\u7f51\u7ed9\u5927\u5bb6\u6574\u7406\u4e86\u300a\u5168\u9762\u89e3\u6790Redis\u4e3b\u4ece\u590d\u5236\u300b\uff0c\u804a\u804aRedis\u3001\u9ad8\u53ef\u7528\u3001\u4e3b\u4ece\u590d\u5236\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n<p>\u5728\u524d\u9762\u7684\u4e24\u7bc7\u6587\u7ae0\u4e2d\uff0c\u5206\u522b\u4ecb\u7ecd\u4e86 Redis \u7684\u5185\u5b58\u6a21\u578b\u548c Redis \u7684\u6301\u4e45\u5316\uff0c\u4eca\u5929\u6211\u4eec\u6765\u6df1\u5165\u5b66\u4e60 Redis \u7684\u4e3b\u4ece\u590d\u5236\u3002<\/p>\n<\/p>\n<p>\u5728 Redis \u7684\u6301\u4e45\u5316\u4e2d\u66fe\u63d0\u5230\uff0cRedis \u9ad8\u53ef\u7528\u7684\u65b9\u6848\u5305\u62ec\u6301\u4e45\u5316\u3001\u4e3b\u4ece\u590d\u5236\uff08\u53ca\u8bfb\u5199\u5206\u79bb\uff09\u3001\u54e8\u5175\u548c\u96c6\u7fa4\u3002<\/p>\n<p>\u5176\u4e2d\u6301\u4e45\u5316\u4fa7\u91cd\u89e3\u51b3\u7684\u662f Redis \u6570\u636e\u7684\u5355\u673a\u5907\u4efd\u95ee\u9898\uff08\u4ece\u5185\u5b58\u5230\u786c\u76d8\u7684\u5907\u4efd\uff09\uff1b\u800c\u4e3b\u4ece\u590d\u5236\u5219\u4fa7\u91cd\u89e3\u51b3\u6570\u636e\u7684\u591a\u673a\u70ed\u5907\u3002\u6b64\u5916\uff0c\u4e3b\u4ece\u590d\u5236\u8fd8\u53ef\u4ee5\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u548c\u6545\u969c\u6062\u590d\u3002<\/p>\n<p>\u6211\u5c06\u4ece\u4ee5\u4e0b\u51e0\u4e2a\u90e8\u5206\u8be6\u7ec6\u4ecb\u7ecd Redis \u4e3b\u4ece\u590d\u5236\u7684\u65b9\u65b9\u9762\u9762\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u4e3b\u4ece\u590d\u5236\u6982\u8ff0<\/strong><\/p>\n<\/li>\n<li>\n<p><strong>\u5982\u4f55\u4f7f\u7528\u4e3b\u4ece\u590d\u5236<\/strong><\/p>\n<\/li>\n<li>\n<p><strong>\u4e3b\u4ece\u590d\u5236\u7684\u5b9e\u73b0\u539f\u7406<\/strong><\/p>\n<\/li>\n<li>\n<p><strong>\u5e94\u7528\u4e2d\u7684\u95ee\u9898<\/strong><\/p>\n<\/li>\n<li>\n<p><strong>\u603b\u7ed3<\/strong><\/p>\n<\/li>\n<\/ul>\n<p><strong><span style=\"font-size: x-large\">\u4e3b\u4ece\u590d\u5236\u6982\u8ff0<\/span><\/strong><\/p>\n<p>\u4e3b\u4ece\u590d\u5236\uff0c\u662f\u6307\u5c06\u4e00\u53f0 Redis \u670d\u52a1\u5668\u7684\u6570\u636e\uff0c\u590d\u5236\u5230\u5176\u4ed6\u7684 Redis \u670d\u52a1\u5668\u3002\u524d\u8005\u79f0\u4e3a\u4e3b\u8282\u70b9(master)\uff0c\u540e\u8005\u79f0\u4e3a\u4ece\u8282\u70b9(slave)\uff1b\u6570\u636e\u7684\u590d\u5236\u662f\u5355\u5411\u7684\uff0c\u53ea\u80fd\u7531\u4e3b\u8282\u70b9\u5230\u4ece\u8282\u70b9\u3002<\/p>\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6bcf\u53f0 Redis \u670d\u52a1\u5668\u90fd\u662f\u4e3b\u8282\u70b9\uff1b\u4e14\u4e00\u4e2a\u4e3b\u8282\u70b9\u53ef\u4ee5\u6709\u591a\u4e2a\u4ece\u8282\u70b9(\u6216\u6ca1\u6709\u4ece\u8282\u70b9)\uff0c\u4f46\u4e00\u4e2a\u4ece\u8282\u70b9\u53ea\u80fd\u6709\u4e00\u4e2a\u4e3b\u8282\u70b9\u3002<\/p>\n<p>\u4e3b\u4ece\u590d\u5236\u7684\u4f5c\u7528\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\n<p>\u6570\u636e\u5197\u4f59\uff1a\u4e3b\u4ece\u590d\u5236\u5b9e\u73b0\u4e86\u6570\u636e\u7684\u70ed\u5907\u4efd\uff0c\u662f\u6301\u4e45\u5316\u4e4b\u5916\u7684\u4e00\u79cd\u6570\u636e\u5197\u4f59\u65b9\u5f0f\u3002<\/p>\n<\/li>\n<li>\n<p>\u6545\u969c\u6062\u590d\uff1a\u5f53\u4e3b\u8282\u70b9\u51fa\u73b0\u95ee\u9898\u65f6\uff0c\u53ef\u4ee5\u7531\u4ece\u8282\u70b9\u63d0\u4f9b\u670d\u52a1\uff0c\u5b9e\u73b0\u5feb\u901f\u7684\u6545\u969c\u6062\u590d\uff1b\u5b9e\u9645\u4e0a\u662f\u4e00\u79cd\u670d\u52a1\u7684\u5197\u4f59\u3002<\/p>\n<\/li>\n<li>\n<p>\u8d1f\u8f7d\u5747\u8861\uff1a\u5728\u4e3b\u4ece\u590d\u5236\u7684\u57fa\u7840\u4e0a\uff0c\u914d\u5408\u8bfb\u5199\u5206\u79bb\uff0c\u53ef\u4ee5\u7531\u4e3b\u8282\u70b9\u63d0\u4f9b\u5199\u670d\u52a1\uff0c\u7531\u4ece\u8282\u70b9\u63d0\u4f9b\u8bfb\u670d\u52a1\uff08\u5373\u5199 Redis \u6570\u636e\u65f6\u5e94\u7528\u8fde\u63a5\u4e3b\u8282\u70b9\uff0c\u8bfb Redis \u6570\u636e\u65f6\u5e94\u7528\u8fde\u63a5\u4ece\u8282\u70b9\uff09\uff0c\u5206\u62c5\u670d\u52a1\u5668\u8d1f\u8f7d\uff1b\u5c24\u5176\u662f\u5728\u5199\u5c11\u8bfb\u591a\u7684\u573a\u666f\u4e0b\uff0c\u901a\u8fc7\u591a\u4e2a\u4ece\u8282\u70b9\u5206\u62c5\u8bfb\u8d1f\u8f7d\uff0c\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8 Redis \u670d\u52a1\u5668\u7684\u5e76\u53d1\u91cf\u3002<\/p>\n<\/li>\n<li>\n<p>\u9ad8\u53ef\u7528\u57fa\u77f3\uff1a\u9664\u4e86\u4e0a\u8ff0\u4f5c\u7528\u4ee5\u5916\uff0c\u4e3b\u4ece\u590d\u5236\u8fd8\u662f\u54e8\u5175\u548c\u96c6\u7fa4\u80fd\u591f\u5b9e\u65bd\u7684\u57fa\u7840\uff0c\u56e0\u6b64\u8bf4\u4e3b\u4ece\u590d\u5236\u662f Redis \u9ad8\u53ef\u7528\u7684\u57fa\u7840\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong><span style=\"font-size: x-large\">\u5982\u4f55\u4f7f\u7528\u4e3b\u4ece\u590d\u5236<\/span><\/strong><\/p>\n<p>\u4e3a\u4e86\u66f4\u76f4\u89c2\u7684\u7406\u89e3\u4e3b\u4ece\u590d\u5236\uff0c\u5728\u4ecb\u7ecd\u5176\u5185\u90e8\u539f\u7406\u4e4b\u524d\uff0c\u5148\u8bf4\u660e\u6211\u4eec\u9700\u8981\u5982\u4f55\u64cd\u4f5c\u624d\u80fd\u5f00\u542f\u4e3b\u4ece\u590d\u5236\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u5efa\u7acb\u590d\u5236<\/span><\/strong><\/p>\n<p>\u9700\u8981\u6ce8\u610f\uff0c\u4e3b\u4ece\u590d\u5236\u7684\u5f00\u542f\uff0c\u5b8c\u5168\u662f\u5728\u4ece\u8282\u70b9\u53d1\u8d77\u7684\uff1b\u4e0d\u9700\u8981\u6211\u4eec\u5728\u4e3b\u8282\u70b9\u505a\u4efb\u4f55\u4e8b\u60c5\u3002<\/p>\n<p>\u4ece\u8282\u70b9\u5f00\u542f\u4e3b\u4ece\u590d\u5236\uff0c\u6709 3 \u79cd\u65b9\u5f0f\uff1a<\/p>\n<ul>\n<li>\n<p>\u5728\u4ece\u670d\u52a1\u5668\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u52a0\u5165\uff1aslaveof \u3002 <\/p>\n<\/li>\n<li>\n<p>redis-server \u542f\u52a8\u547d\u4ee4\u540e\u52a0\u5165 &#8211;slaveof \u3002 <\/p>\n<\/li>\n<li>\n<p>Redis \u670d\u52a1\u5668\u542f\u52a8\u540e\uff0c\u76f4\u63a5\u901a\u8fc7\u5ba2\u6237\u7aef\u6267\u884c\u547d\u4ee4\uff1aslaveof \uff0c\u5219\u8be5 Redis \u5b9e\u4f8b\u6210\u4e3a\u4ece\u8282\u70b9\u3002 <\/p>\n<\/li>\n<\/ul>\n<p>\u4e0a\u8ff0 3 \u79cd\u65b9\u5f0f\u662f\u7b49\u6548\u7684\uff0c\u4e0b\u9762\u4ee5\u5ba2\u6237\u7aef\u547d\u4ee4\u7684\u65b9\u5f0f\u4e3a\u4f8b\uff0c\u770b\u4e00\u4e0b\u5f53\u6267\u884c\u4e86 slaveof \u540e\uff0cRedis \u4e3b\u8282\u70b9\u548c\u4ece\u8282\u70b9\u7684\u53d8\u5316\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u5b9e\u4f8b<\/span><\/strong><\/p>\n<p>\u51c6\u5907\u5de5\u4f5c\uff1a\u542f\u52a8\u4e24\u4e2a\u8282\u70b9\u3002\u4e3a\u4e86\u65b9\u4fbf\u8d77\u89c1\uff0c\u5b9e\u9a8c\u6240\u4f7f\u7528\u7684\u4e3b\u4ece\u8282\u70b9\u662f\u5728\u4e00\u53f0\u673a\u5668\u4e0a\u7684\u4e0d\u540c Redis \u5b9e\u4f8b\u3002<\/p>\n<p>\u5176\u4e2d\u4e3b\u8282\u70b9\u76d1\u542c 6379 \u7aef\u53e3\uff0c\u4ece\u8282\u70b9\u76d1\u542c 6380 \u7aef\u53e3\uff1b\u4ece\u8282\u70b9\u76d1\u542c\u7684\u7aef\u53e3\u53f7\u53ef\u4ee5\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u4fee\u6539\uff1a<\/p>\n<\/p>\n<p>\u542f\u52a8\u540e\u53ef\u4ee5\u770b\u5230\uff1a<\/p>\n<\/p>\n<p>\u4e24\u4e2a Redis \u8282\u70b9\u542f\u52a8\u540e\uff08\u5206\u522b\u79f0\u4e3a6379\u8282\u70b9\u548c6380\u8282\u70b9\uff09\uff0c\u9ed8\u8ba4\u90fd\u662f\u4e3b\u8282\u70b9\u3002<\/p>\n<p>\u5efa\u7acb\u590d\u5236\uff1a\u6b64\u65f6\u5728 6380 \u8282\u70b9\u6267\u884c slaveof \u547d\u4ee4\uff0c\u4f7f\u4e4b\u53d8\u4e3a\u4ece\u8282\u70b9\u3002<\/p>\n<\/p>\n<p>\u89c2\u5bdf\u6548\u679c\uff1a\u4e0b\u9762\u9a8c\u8bc1\u4e00\u4e0b\uff0c\u5728\u4e3b\u4ece\u590d\u5236\u5efa\u7acb\u540e\uff0c\u4e3b\u8282\u70b9\u7684\u6570\u636e\u4f1a\u590d\u5236\u5230\u4ece\u8282\u70b9\u4e2d\u3002<\/p>\n<p>\u9996\u5148\u5728\u4ece\u8282\u70b9\u67e5\u8be2\u4e00\u4e2a\u4e0d\u5b58\u5728\u7684 key\uff1a<\/p>\n<\/p>\n<p>\u7136\u540e\u5728\u4e3b\u8282\u70b9\u4e2d\u589e\u52a0\u8fd9\u4e2a key\uff1a<\/p>\n<\/p>\n<p>\u6b64\u65f6\u5728\u4ece\u8282\u70b9\u4e2d\u518d\u6b21\u67e5\u8be2\u8fd9\u4e2a key\uff0c\u4f1a\u53d1\u73b0\u4e3b\u8282\u70b9\u7684\u64cd\u4f5c\u5df2\u7ecf\u540c\u6b65\u81f3\u4ece\u8282\u70b9\uff1a<\/p>\n<\/p>\n<p>\u7136\u540e\u5728\u4e3b\u8282\u70b9\u5220\u9664\u8fd9\u4e2a key\uff1a<\/p>\n<\/p>\n<p>\u6b64\u65f6\u5728\u4ece\u8282\u70b9\u4e2d\u518d\u6b21\u67e5\u8be2\u8fd9\u4e2a key\uff0c\u4f1a\u53d1\u73b0\u4e3b\u8282\u70b9\u7684\u64cd\u4f5c\u5df2\u7ecf\u540c\u6b65\u81f3\u4ece\u8282\u70b9\uff1a<\/p>\n<\/p>\n<p><strong><span style=\"font-size: large\">\u65ad\u5f00\u590d\u5236<\/span><\/strong><\/p>\n<p>\u901a\u8fc7 slaveof \u547d\u4ee4\u5efa\u7acb\u4e3b\u4ece\u590d\u5236\u5173\u7cfb\u4ee5\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7 slaveof no one \u65ad\u5f00\u3002 <\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4ece\u8282\u70b9\u65ad\u5f00\u590d\u5236\u540e\uff0c\u4e0d\u4f1a\u5220\u9664\u5df2\u6709\u7684\u6570\u636e\uff0c\u53ea\u662f\u4e0d\u518d\u63a5\u53d7\u4e3b\u8282\u70b9\u65b0\u7684\u6570\u636e\u53d8\u5316\u3002<\/p>\n<p>\u4ece\u8282\u70b9\u6267\u884c slaveof no one \u540e\uff0c\u6253\u5370\u65e5\u5fd7\u5982\u4e0b\u56fe\u6240\u793a\uff1b\u53ef\u4ee5\u770b\u51fa\u65ad\u5f00\u590d\u5236\u540e\uff0c\u4ece\u8282\u70b9\u53c8\u53d8\u56de\u4e3a\u4e3b\u8282\u70b9\u3002<\/p>\n<\/p>\n<p>\u4e3b\u8282\u70b9\u6253\u5370\u65e5\u5fd7\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><strong><span style=\"font-size: x-large\">\u4e3b\u4ece\u590d\u5236\u7684\u5b9e\u73b0\u539f\u7406<\/span><\/strong><\/p>\n<p>\u4e0a\u9762\u4e00\u8282\u4e2d\uff0c\u6211\u4eec\u4ecb\u7ecd\u4e86\u5982\u4f55\u64cd\u4f5c\u53ef\u4ee5\u5efa\u7acb\u4e3b\u4ece\u5173\u7cfb\uff1b\u672c\u5c0f\u8282\u5c06\u4ecb\u7ecd\u4e3b\u4ece\u590d\u5236\u7684\u5b9e\u73b0\u539f\u7406\u3002<\/p>\n<p>\u4e3b\u4ece\u590d\u5236\u8fc7\u7a0b\u5927\u4f53\u53ef\u4ee5\u5206\u4e3a 3 \u4e2a\u9636\u6bb5\uff1a<\/p>\n<ul>\n<li>\n<p>\u8fde\u63a5\u5efa\u7acb\u9636\u6bb5\uff08\u5373\u51c6\u5907\u9636\u6bb5\uff09<\/p>\n<\/li>\n<li>\n<p><strong>\u6570\u636e\u540c\u6b65\u9636\u6bb5<\/strong><\/p>\n<\/li>\n<li>\n<p><strong>\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5<\/strong><\/p>\n<\/li>\n<\/ul>\n<p><span style=\"font-size: large\"><strong>\u8fde\u63a5\u5efa\u7acb\u9636\u6bb5<\/strong><\/span><\/p>\n<p>\u8be5\u9636\u6bb5\u7684\u4e3b\u8981\u4f5c\u7528\u662f\u5728\u4e3b\u4ece\u8282\u70b9\u4e4b\u95f4\u5efa\u7acb\u8fde\u63a5\uff0c\u4e3a\u6570\u636e\u540c\u6b65\u505a\u597d\u51c6\u5907\u3002<\/p>\n<p><strong>\u6b65\u9aa4 1\uff1a\u4fdd\u5b58\u4e3b\u8282\u70b9\u4fe1\u606f<\/strong><\/p>\n<p>\u4ece\u8282\u70b9\u670d\u52a1\u5668\u5185\u90e8\u7ef4\u62a4\u4e86\u4e24\u4e2a\u5b57\u6bb5\uff0c\u5373 masterhost \u548c masterport \u5b57\u6bb5\uff0c\u7528\u4e8e\u5b58\u50a8\u4e3b\u8282\u70b9\u7684 ip \u548c port \u4fe1\u606f\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cslaveof \u662f\u5f02\u6b65\u547d\u4ee4\uff0c\u4ece\u8282\u70b9\u5b8c\u6210\u4e3b\u8282\u70b9 ip \u548c port \u7684\u4fdd\u5b58\u540e\uff0c\u5411\u53d1\u9001 slaveof \u547d\u4ee4\u7684\u5ba2\u6237\u7aef\u76f4\u63a5\u8fd4\u56de OK\uff0c\u5b9e\u9645\u7684\u590d\u5236\u64cd\u4f5c\u5728\u8fd9\u4e4b\u540e\u624d\u5f00\u59cb\u8fdb\u884c\u3002<\/p>\n<p>\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u770b\u5230\u4ece\u8282\u70b9\u6253\u5370\u65e5\u5fd7\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><strong>\u6b65\u9aa4 2\uff1a\u5efa\u7acb Socket \u8fde\u63a5<\/strong><\/p>\n<p>\u4ece\u8282\u70b9\u6bcf\u79d2 1 \u6b21\u8c03\u7528\u590d\u5236\u5b9a\u65f6\u51fd\u6570 replicationCron()\uff0c\u5982\u679c\u53d1\u73b0\u4e86\u6709\u4e3b\u8282\u70b9\u53ef\u4ee5\u8fde\u63a5\uff0c\u4fbf\u4f1a\u6839\u636e\u4e3b\u8282\u70b9\u7684 ip \u548c port\uff0c\u521b\u5efa socket \u8fde\u63a5\u3002<\/p>\n<p>\u5982\u679c\u8fde\u63a5\u6210\u529f\uff0c\u5219\uff1a<\/p>\n<ul>\n<li>\n<p>\u4ece\u8282\u70b9\uff1a\u4e3a\u8be5 socket \u5efa\u7acb\u4e00\u4e2a\u4e13\u95e8\u5904\u7406\u590d\u5236\u5de5\u4f5c\u7684\u6587\u4ef6\u4e8b\u4ef6\u5904\u7406\u5668\uff0c\u8d1f\u8d23\u540e\u7eed\u7684\u590d\u5236\u5de5\u4f5c\uff0c\u5982\u63a5\u6536 RDB \u6587\u4ef6\u3001\u63a5\u6536\u547d\u4ee4\u4f20\u64ad\u7b49\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e3b\u8282\u70b9\uff1a\u63a5\u6536\u5230\u4ece\u8282\u70b9\u7684 socket \u8fde\u63a5\u540e\uff08\u5373 accept \u4e4b\u540e\uff09\uff0c\u4e3a\u8be5 socket \u521b\u5efa\u76f8\u5e94\u7684\u5ba2\u6237\u7aef\u72b6\u6001\uff0c\u5e76\u5c06\u4ece\u8282\u70b9\u770b\u505a\u662f\u8fde\u63a5\u5230\u4e3b\u8282\u70b9\u7684\u4e00\u4e2a\u5ba2\u6237\u7aef\uff0c\u540e\u9762\u7684\u6b65\u9aa4\u4f1a\u4ee5\u4ece\u8282\u70b9\u5411\u4e3b\u8282\u70b9\u53d1\u9001\u547d\u4ee4\u8bf7\u6c42\u7684\u5f62\u5f0f\u6765\u8fdb\u884c\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\uff0c\u4ece\u8282\u70b9\u6253\u5370\u65e5\u5fd7\u5982\u4e0b\uff1a<\/p>\n<p><strong>\u6b65\u9aa4 3\uff1a\u53d1\u9001 Ping \u547d\u4ee4<\/strong><\/p>\n<p>\u4ece\u8282\u70b9\u6210\u4e3a\u4e3b\u8282\u70b9\u7684\u5ba2\u6237\u7aef\u4e4b\u540e\uff0c\u53d1\u9001 ping \u547d\u4ee4\u8fdb\u884c***\u8bf7\u6c42\uff0c\u76ee\u7684\u662f\uff1a\u68c0\u67e5 socket \u8fde\u63a5\u662f\u5426\u53ef\u7528\uff0c\u4ee5\u53ca\u4e3b\u8282\u70b9\u5f53\u524d\u662f\u5426\u80fd\u591f\u5904\u7406\u8bf7\u6c42\u3002<\/p>\n<p>\u4ece\u8282\u70b9\u53d1\u9001 ping \u547d\u4ee4\u540e\uff0c\u53ef\u80fd\u51fa\u73b0 3 \u79cd\u60c5\u51b5\uff1a<\/p>\n<ul>\n<li>\n<p>\u8fd4\u56depong\uff1a\u8bf4\u660e socket \u8fde\u63a5\u6b63\u5e38\uff0c\u4e14\u4e3b\u8282\u70b9\u5f53\u524d\u53ef\u4ee5\u5904\u7406\u8bf7\u6c42\uff0c\u590d\u5236\u8fc7\u7a0b\u7ee7\u7eed\u3002<\/p>\n<\/li>\n<li>\n<p>\u8d85\u65f6\uff1a\u4e00\u5b9a\u65f6\u95f4\u540e\u4ece\u8282\u70b9\u4ecd\u672a\u6536\u5230\u4e3b\u8282\u70b9\u7684\u56de\u590d\uff0c\u8bf4\u660e socket \u8fde\u63a5\u4e0d\u53ef\u7528\uff0c\u5219\u4ece\u8282\u70b9\u65ad\u5f00 socket \u8fde\u63a5\uff0c\u5e76\u91cd\u8fde\u3002<\/p>\n<\/li>\n<li>\n<p>\u8fd4\u56de pong \u4ee5\u5916\u7684\u7ed3\u679c\uff1a\u5982\u679c\u4e3b\u8282\u70b9\u8fd4\u56de\u5176\u4ed6\u7ed3\u679c\uff0c\u5982\u6b63\u5728\u5904\u7406\u8d85\u65f6\u8fd0\u884c\u7684\u811a\u672c\uff0c\u8bf4\u660e\u4e3b\u8282\u70b9\u5f53\u524d\u65e0\u6cd5\u5904\u7406\u547d\u4ee4\uff0c\u5219\u4ece\u8282\u70b9\u65ad\u5f00 socket \u8fde\u63a5\uff0c\u5e76\u91cd\u8fde\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5728\u4e3b\u8282\u70b9\u8fd4\u56de pong \u60c5\u51b5\u4e0b\uff0c\u4ece\u8282\u70b9\u6253\u5370\u65e5\u5fd7\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><strong>\u6b65\u9aa4 4\uff1a\u8eab\u4efd\u9a8c\u8bc1<\/strong><\/p>\n<p>\u5982\u679c\u4ece\u8282\u70b9\u4e2d\u8bbe\u7f6e\u4e86 masterauth \u9009\u9879\uff0c\u5219\u4ece\u8282\u70b9\u9700\u8981\u5411\u4e3b\u8282\u70b9\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\uff1b\u6ca1\u6709\u8bbe\u7f6e\u8be5\u9009\u9879\uff0c\u5219\u4e0d\u9700\u8981\u9a8c\u8bc1\u3002<\/p>\n<p>\u4ece\u8282\u70b9\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\u662f\u901a\u8fc7\u5411\u4e3b\u8282\u70b9\u53d1\u9001 auth \u547d\u4ee4\u8fdb\u884c\u7684\uff0cauth \u547d\u4ee4\u7684\u53c2\u6570\u5373\u4e3a\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684 masterauth \u7684\u503c\u3002<\/p>\n<p>\u5982\u679c\u4e3b\u8282\u70b9\u8bbe\u7f6e\u5bc6\u7801\u7684\u72b6\u6001\uff0c\u4e0e\u4ece\u8282\u70b9 masterauth \u7684\u72b6\u6001\u4e00\u81f4\uff08\u4e00\u81f4\u662f\u6307\u90fd\u5b58\u5728\uff0c\u4e14\u5bc6\u7801\u76f8\u540c\uff0c\u6216\u8005\u90fd\u4e0d\u5b58\u5728\uff09\uff0c\u5219\u8eab\u4efd\u9a8c\u8bc1\u901a\u8fc7\uff0c\u590d\u5236\u8fc7\u7a0b\u7ee7\u7eed\uff1b\u5982\u679c\u4e0d\u4e00\u81f4\uff0c\u5219\u4ece\u8282\u70b9\u65ad\u5f00 socket \u8fde\u63a5\uff0c\u5e76\u91cd\u8fde\u3002<\/p>\n<p><strong>\u6b65\u9aa4 5\uff1a\u53d1\u9001\u4ece\u8282\u70b9\u7aef\u53e3\u4fe1\u606f<\/strong><\/p>\n<p>\u8eab\u4efd\u9a8c\u8bc1\u4e4b\u540e\uff0c\u4ece\u8282\u70b9\u4f1a\u5411\u4e3b\u8282\u70b9\u53d1\u9001\u5176\u76d1\u542c\u7684\u7aef\u53e3\u53f7\uff08\u524d\u8ff0\u4f8b\u5b50\u4e2d\u4e3a 6380\uff09\uff0c\u4e3b\u8282\u70b9\u5c06\u8be5\u4fe1\u606f\u4fdd\u5b58\u5230\u8be5\u4ece\u8282\u70b9\u5bf9\u5e94\u7684\u5ba2\u6237\u7aef\u7684 slave_listening_port \u5b57\u6bb5\u4e2d\u3002<\/p>\n<p>\u8be5\u7aef\u53e3\u4fe1\u606f\u9664\u4e86\u5728\u4e3b\u8282\u70b9\u4e2d\u6267\u884c info Replication \u65f6\u663e\u793a\u4ee5\u5916\uff0c\u6ca1\u6709\u5176\u4ed6\u4f5c\u7528\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u6570\u636e\u540c\u6b65\u9636\u6bb5<\/span><\/strong><\/p>\n<p>\u4e3b\u4ece\u8282\u70b9\u4e4b\u95f4\u7684\u8fde\u63a5\u5efa\u7acb\u4ee5\u540e\uff0c\u4fbf\u53ef\u4ee5\u5f00\u59cb\u8fdb\u884c\u6570\u636e\u540c\u6b65\uff0c\u8be5\u9636\u6bb5\u53ef\u4ee5\u7406\u89e3\u4e3a\u4ece\u8282\u70b9\u6570\u636e\u7684\u521d\u59cb\u5316\u3002<\/p>\n<p>\u5177\u4f53\u6267\u884c\u7684\u65b9\u5f0f\u662f\uff1a\u4ece\u8282\u70b9\u5411\u4e3b\u8282\u70b9\u53d1\u9001 psync \u547d\u4ee4\uff08Redis 2.8 \u4ee5\u524d\u662f sync \u547d\u4ee4\uff09\uff0c\u5f00\u59cb\u540c\u6b65\u3002<\/p>\n<p>\u6570\u636e\u540c\u6b65\u9636\u6bb5\u662f\u4e3b\u4ece\u590d\u5236\u6700\u6838\u5fc3\u7684\u9636\u6bb5\uff0c\u6839\u636e\u4e3b\u4ece\u8282\u70b9\u5f53\u524d\u72b6\u6001\u7684\u4e0d\u540c\uff0c\u53ef\u4ee5\u5206\u4e3a\u5168\u91cf\u590d\u5236\u548c\u90e8\u5206\u590d\u5236\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728\u6570\u636e\u540c\u6b65\u9636\u6bb5\u4e4b\u524d\uff0c\u4ece\u8282\u70b9\u662f\u4e3b\u8282\u70b9\u7684\u5ba2\u6237\u7aef\uff0c\u4e3b\u8282\u70b9\u4e0d\u662f\u4ece\u8282\u70b9\u7684\u5ba2\u6237\u7aef\uff1b\u800c\u5230\u4e86\u8fd9\u4e00\u9636\u6bb5\u53ca\u4ee5\u540e\uff0c\u4e3b\u4ece\u8282\u70b9\u4e92\u4e3a\u5ba2\u6237\u7aef\u3002<\/p>\n<p>\u539f\u56e0\u5728\u4e8e\uff1a\u5728\u6b64\u4e4b\u524d\uff0c\u4e3b\u8282\u70b9\u53ea\u9700\u8981\u54cd\u5e94\u4ece\u8282\u70b9\u7684\u8bf7\u6c42\u5373\u53ef\uff0c\u4e0d\u9700\u8981\u4e3b\u52a8\u53d1\u8bf7\u6c42\uff0c\u800c\u5728\u6570\u636e\u540c\u6b65\u9636\u6bb5\u548c\u540e\u9762\u7684\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5\uff0c\u4e3b\u8282\u70b9\u9700\u8981\u4e3b\u52a8\u5411\u4ece\u8282\u70b9\u53d1\u9001\u8bf7\u6c42\uff08\u5982\u63a8\u9001\u7f13\u51b2\u533a\u4e2d\u7684\u5199\u547d\u4ee4\uff09\uff0c\u624d\u80fd\u5b8c\u6210\u590d\u5236\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5<\/span><\/strong><\/p>\n<p>\u6570\u636e\u540c\u6b65\u9636\u6bb5\u5b8c\u6210\u540e\uff0c\u4e3b\u4ece\u8282\u70b9\u8fdb\u5165\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5\uff1b\u5728\u8fd9\u4e2a\u9636\u6bb5\u4e3b\u8282\u70b9\u5c06\u81ea\u5df1\u6267\u884c\u7684\u5199\u547d\u4ee4\u53d1\u9001\u7ed9\u4ece\u8282\u70b9\uff0c\u4ece\u8282\u70b9\u63a5\u6536\u547d\u4ee4\u5e76\u6267\u884c\uff0c\u4ece\u800c\u4fdd\u8bc1\u4e3b\u4ece\u8282\u70b9\u6570\u636e\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<p>\u5728\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5\uff0c\u9664\u4e86\u53d1\u9001\u5199\u547d\u4ee4\uff0c\u4e3b\u4ece\u8282\u70b9\u8fd8\u7ef4\u6301\u7740\u5fc3\u8df3\u673a\u5236\uff1aPING \u548c REPLCONF ACK\u3002<\/p>\n<p>\u7531\u4e8e\u5fc3\u8df3\u673a\u5236\u7684\u539f\u7406\u6d89\u53ca\u90e8\u5206\u590d\u5236\uff0c\u56e0\u6b64\u5c06\u5728\u4ecb\u7ecd\u4e86\u90e8\u5206\u590d\u5236\u7684\u76f8\u5173\u5185\u5bb9\u540e\u5355\u72ec\u4ecb\u7ecd\u8be5\u5fc3\u8df3\u673a\u5236\u3002<\/p>\n<p>\u5ef6\u8fdf\u4e0e\u4e0d\u4e00\u81f4\uff1a\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u547d\u4ee4\u4f20\u64ad\u662f\u5f02\u6b65\u7684\u8fc7\u7a0b\uff0c\u5373\u4e3b\u8282\u70b9\u53d1\u9001\u5199\u547d\u4ee4\u540e\u5e76\u4e0d\u4f1a\u7b49\u5f85\u4ece\u8282\u70b9\u7684\u56de\u590d\uff1b\u56e0\u6b64\u5b9e\u9645\u4e0a\u4e3b\u4ece\u8282\u70b9\u4e4b\u95f4\u5f88\u96be\u4fdd\u6301\u5b9e\u65f6\u7684\u4e00\u81f4\u6027\uff0c\u5ef6\u8fdf\u5728\u6240\u96be\u514d\u3002<\/p>\n<p>\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u7a0b\u5ea6\uff0c\u4e0e\u4e3b\u4ece\u8282\u70b9\u4e4b\u95f4\u7684\u7f51\u7edc\u72b6\u51b5\u3001\u4e3b\u8282\u70b9\u5199\u547d\u4ee4\u7684\u6267\u884c\u9891\u7387\u3001\u4ee5\u53ca\u4e3b\u8282\u70b9\u4e2d\u7684 repl-disable-tcp-nodelay \u914d\u7f6e\u7b49\u6709\u5173\u3002<\/p>\n<p>repl-disable-tcp-nodelay no\uff1a\u8be5\u914d\u7f6e\u4f5c\u7528\u4e8e\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5\uff0c\u63a7\u5236\u4e3b\u8282\u70b9\u662f\u5426\u7981\u6b62\u4e0e\u4ece\u8282\u70b9\u7684 TCP_NODELAY\uff1b\u9ed8\u8ba4 no\uff0c\u5373\u4e0d\u7981\u6b62 TCP_NODELAY\u3002<\/p>\n<p>\u5f53\u8bbe\u7f6e\u4e3a yes \u65f6\uff0cTCP \u4f1a\u5bf9\u5305\u8fdb\u884c\u5408\u5e76\u4ece\u800c\u51cf\u5c11\u5e26\u5bbd\uff0c\u4f46\u662f\u53d1\u9001\u7684\u9891\u7387\u4f1a\u964d\u4f4e\uff0c\u4ece\u8282\u70b9\u6570\u636e\u5ef6\u8fdf\u589e\u52a0\uff0c\u4e00\u81f4\u6027\u53d8\u5dee\uff1b\u5177\u4f53\u53d1\u9001\u9891\u7387\u4e0e Linux \u5185\u6838\u7684\u914d\u7f6e\u6709\u5173\uff0c\u9ed8\u8ba4\u914d\u7f6e\u4e3a 40ms\u3002<\/p>\n<p>\u5f53\u8bbe\u7f6e\u4e3a no \u65f6\uff0cTCP \u4f1a\u7acb\u9a6c\u5c06\u4e3b\u8282\u70b9\u7684\u6570\u636e\u53d1\u9001\u7ed9\u4ece\u8282\u70b9\uff0c\u5e26\u5bbd\u589e\u52a0\u4f46\u5ef6\u8fdf\u53d8\u5c0f\u3002<\/p>\n<p>\u4e00\u822c\u6765\u8bf4\uff0c\u53ea\u6709\u5f53\u5e94\u7528\u5bf9 Redis \u6570\u636e\u4e0d\u4e00\u81f4\u7684\u5bb9\u5fcd\u5ea6\u8f83\u9ad8\uff0c\u4e14\u4e3b\u4ece\u8282\u70b9\u4e4b\u95f4\u7f51\u7edc\u72b6\u51b5\u4e0d\u597d\u65f6\uff0c\u624d\u4f1a\u8bbe\u7f6e\u4e3a yes\uff1b\u591a\u6570\u60c5\u51b5\u4f7f\u7528\u9ed8\u8ba4\u503c no\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u6570\u636e\u540c\u6b65\u9636\u6bb5\uff1a\u5168\u91cf\u590d\u5236\u548c\u90e8\u5206\u590d\u5236<\/span><\/strong><\/p>\n<p>\u5728 Redis 2.8 \u4ee5\u524d\uff0c\u4ece\u8282\u70b9\u5411\u4e3b\u8282\u70b9\u53d1\u9001 sync \u547d\u4ee4\u8bf7\u6c42\u540c\u6b65\u6570\u636e\uff0c\u6b64\u65f6\u7684\u540c\u6b65\u65b9\u5f0f\u662f\u5168\u91cf\u590d\u5236\u3002<\/p>\n<p>\u5728 Redis 2.8 \u53ca\u4ee5\u540e\uff0c\u4ece\u8282\u70b9\u53ef\u4ee5\u53d1\u9001 psync \u547d\u4ee4\u8bf7\u6c42\u540c\u6b65\u6570\u636e\uff0c\u6b64\u65f6\u6839\u636e\u4e3b\u4ece\u8282\u70b9\u5f53\u524d\u72b6\u6001\u7684\u4e0d\u540c\uff0c\u540c\u6b65\u65b9\u5f0f\u53ef\u80fd\u662f\u5168\u91cf\u590d\u5236\u6216\u90e8\u5206\u590d\u5236\u3002\u540e\u6587\u4ecb\u7ecd\u4ee5 Redis 2.8 \u53ca\u4ee5\u540e\u7248\u672c\u4e3a\u4f8b\u3002<\/p>\n<p>\u5168\u91cf\u590d\u5236\uff1a\u7528\u4e8e\u521d\u6b21\u590d\u5236\u6216\u5176\u4ed6\u65e0\u6cd5\u8fdb\u884c\u90e8\u5206\u590d\u5236\u7684\u60c5\u51b5\uff0c\u5c06\u4e3b\u8282\u70b9\u4e2d\u7684\u6240\u6709\u6570\u636e\u90fd\u53d1\u9001\u7ed9\u4ece\u8282\u70b9\uff0c\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u578b\u7684\u64cd\u4f5c\u3002<\/p>\n<p>\u90e8\u5206\u590d\u5236\uff1a\u7528\u4e8e\u7f51\u7edc\u4e2d\u65ad\u7b49\u60c5\u51b5\u540e\u7684\u590d\u5236\uff0c\u53ea\u5c06\u4e2d\u65ad\u671f\u95f4\u4e3b\u8282\u70b9\u6267\u884c\u7684\u5199\u547d\u4ee4\u53d1\u9001\u7ed9\u4ece\u8282\u70b9\uff0c\u4e0e\u5168\u91cf\u590d\u5236\u76f8\u6bd4\u66f4\u52a0\u9ad8\u6548\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5982\u679c\u7f51\u7edc\u4e2d\u65ad\u65f6\u95f4\u8fc7\u957f\uff0c\u5bfc\u81f4\u4e3b\u8282\u70b9\u6ca1\u6709\u80fd\u591f\u5b8c\u6574\u5730\u4fdd\u5b58\u4e2d\u65ad\u671f\u95f4\u6267\u884c\u7684\u5199\u547d\u4ee4\uff0c\u5219\u65e0\u6cd5\u8fdb\u884c\u90e8\u5206\u590d\u5236\uff0c\u4ecd\u4f7f\u7528\u5168\u91cf\u590d\u5236\u3002<\/p>\n<p><strong>\u5168\u91cf\u590d\u5236<\/strong><\/p>\n<p>Redis \u901a\u8fc7 psync \u547d\u4ee4\u8fdb\u884c\u5168\u91cf\u590d\u5236\u7684\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\n<p>\u4ece\u8282\u70b9\u5224\u65ad\u65e0\u6cd5\u8fdb\u884c\u90e8\u5206\u590d\u5236\uff0c\u5411\u4e3b\u8282\u70b9\u53d1\u9001\u5168\u91cf\u590d\u5236\u7684\u8bf7\u6c42\uff1b\u6216\u4ece\u8282\u70b9\u53d1\u9001\u90e8\u5206\u590d\u5236\u7684\u8bf7\u6c42\uff0c\u4f46\u4e3b\u8282\u70b9\u5224\u65ad\u65e0\u6cd5\u8fdb\u884c\u5168\u91cf\u590d\u5236\uff1b\u5177\u4f53\u5224\u65ad\u8fc7\u7a0b\u9700\u8981\u5728\u8bb2\u8ff0\u4e86\u90e8\u5206\u590d\u5236\u539f\u7406\u540e\u518d\u4ecb\u7ecd\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e3b\u8282\u70b9\u6536\u5230\u5168\u91cf\u590d\u5236\u7684\u547d\u4ee4\u540e\uff0c\u6267\u884c bgsave\uff0c\u5728\u540e\u53f0\u751f\u6210 RDB \u6587\u4ef6\uff0c\u5e76\u4f7f\u7528\u4e00\u4e2a\u7f13\u51b2\u533a\uff08\u79f0\u4e3a\u590d\u5236\u7f13\u51b2\u533a\uff09\u8bb0\u5f55\u4ece\u73b0\u5728\u5f00\u59cb\u6267\u884c\u7684\u6240\u6709\u5199\u547d\u4ee4<\/p>\n<\/li>\n<li>\n<p>\u4e3b\u8282\u70b9\u7684 bgsave \u6267\u884c\u5b8c\u6210\u540e\uff0c\u5c06 RDB \u6587\u4ef6\u53d1\u9001\u7ed9\u4ece\u8282\u70b9\uff1b\u4ece\u8282\u70b9\u9996\u5148\u6e05\u9664\u81ea\u5df1\u7684\u65e7\u6570\u636e\uff0c\u7136\u540e\u8f7d\u5165\u63a5\u6536\u7684 RDB \u6587\u4ef6\uff0c\u5c06\u6570\u636e\u5e93\u72b6\u6001\u66f4\u65b0\u81f3\u4e3b\u8282\u70b9\u6267\u884c bgsave \u65f6\u7684\u6570\u636e\u5e93\u72b6\u6001\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e3b\u8282\u70b9\u5c06\u524d\u8ff0\u590d\u5236\u7f13\u51b2\u533a\u4e2d\u7684\u6240\u6709\u5199\u547d\u4ee4\u53d1\u9001\u7ed9\u4ece\u8282\u70b9\uff0c\u4ece\u8282\u70b9\u6267\u884c\u8fd9\u4e9b\u5199\u547d\u4ee4\uff0c\u5c06\u6570\u636e\u5e93\u72b6\u6001\u66f4\u65b0\u81f3\u4e3b\u8282\u70b9\u7684***\u72b6\u6001<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u4ece\u8282\u70b9\u5f00\u542f\u4e86 AOF\uff0c\u5219\u4f1a\u89e6\u53d1 bgrewriteaof \u7684\u6267\u884c\uff0c\u4ece\u800c\u4fdd\u8bc1 AOF \u6587\u4ef6\u66f4\u65b0\u81f3\u4e3b\u8282\u70b9\u7684***\u72b6\u6001\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4e0b\u9762\u662f\u6267\u884c\u5168\u91cf\u590d\u5236\u65f6\uff0c\u4e3b\u4ece\u8282\u70b9\u6253\u5370\u7684\u65e5\u5fd7\uff1b\u53ef\u4ee5\u770b\u51fa\u65e5\u5fd7\u5185\u5bb9\u4e0e\u4e0a\u8ff0\u6b65\u9aa4\u662f\u5b8c\u5168\u5bf9\u5e94\u7684\u3002<\/p>\n<p>\u4e3b\u8282\u70b9\u7684\u6253\u5370\u65e5\u5fd7\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p>\u4ece\u8282\u70b9\u6253\u5370\u65e5\u5fd7\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<\/p>\n<p>\u5176\u4e2d\uff0c\u6709\u51e0\u70b9\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\n<p>\u4ece\u8282\u70b9\u63a5\u6536\u4e86\u6765\u81ea\u4e3b\u8282\u70b9\u7684 89260 \u4e2a\u5b57\u8282\u7684\u6570\u636e\u3002<\/p>\n<\/li>\n<li>\n<p>\u4ece\u8282\u70b9\u5728\u8f7d\u5165\u4e3b\u8282\u70b9\u7684\u6570\u636e\u4e4b\u524d\u8981\u5148\u5c06\u8001\u6570\u636e\u6e05\u9664\u3002<\/p>\n<\/li>\n<li>\n<p>\u4ece\u8282\u70b9\u5728\u540c\u6b65\u5b8c\u6570\u636e\u540e\uff0c\u8c03\u7528\u4e86 bgrewriteaof\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u5168\u91cf\u590d\u5236\u7684\u8fc7\u7a0b\u53ef\u4ee5\u770b\u51fa\uff0c\u5168\u91cf\u590d\u5236\u662f\u975e\u5e38\u91cd\u578b\u7684\u64cd\u4f5c\uff1a<\/p>\n<ul>\n<li>\n<p>\u4e3b\u8282\u70b9\u901a\u8fc7 bgsave \u547d\u4ee4 fork \u5b50\u8fdb\u7a0b\u8fdb\u884c RDB \u6301\u4e45\u5316\uff0c\u8be5\u8fc7\u7a0b\u662f\u975e\u5e38\u6d88\u8017 CPU\u3001\u5185\u5b58(\u9875\u8868\u590d\u5236)\u3001\u786c\u76d8 IO \u7684\uff1b\u5173\u4e8e bgsave \u7684\u6027\u80fd\u95ee\u9898\uff0c\u53ef\u4ee5\u53c2\u8003\u6df1\u5165\u5b66\u4e60Redis\uff082\uff09\uff1a\u6301\u4e45\u5316\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e3b\u8282\u70b9\u901a\u8fc7\u7f51\u7edc\u5c06 RDB \u6587\u4ef6\u53d1\u9001\u7ed9\u4ece\u8282\u70b9\uff0c\u5bf9\u4e3b\u4ece\u8282\u70b9\u7684\u5e26\u5bbd\u90fd\u4f1a\u5e26\u6765\u5f88\u5927\u7684\u6d88\u8017\u3002<\/p>\n<\/li>\n<li>\n<p>\u4ece\u8282\u70b9\u6e05\u7a7a\u8001\u6570\u636e\u3001\u8f7d\u5165\u65b0 RDB \u6587\u4ef6\u7684\u8fc7\u7a0b\u662f\u963b\u585e\u7684\uff0c\u65e0\u6cd5\u54cd\u5e94\u5ba2\u6237\u7aef\u7684\u547d\u4ee4\uff1b\u5982\u679c\u4ece\u8282\u70b9\u6267\u884c bgrewriteaof\uff0c\u4e5f\u4f1a\u5e26\u6765\u989d\u5916\u7684\u6d88\u8017\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong>\u90e8\u5206\u590d\u5236<\/strong><\/p>\n<p>\u7531\u4e8e\u5168\u91cf\u590d\u5236\u5728\u4e3b\u8282\u70b9\u6570\u636e\u91cf\u8f83\u5927\u65f6\u6548\u7387\u592a\u4f4e\uff0c\u56e0\u6b64 Redis 2.8 \u5f00\u59cb\u63d0\u4f9b\u90e8\u5206\u590d\u5236\uff0c\u7528\u4e8e\u5904\u7406\u7f51\u7edc\u4e2d\u65ad\u65f6\u7684\u6570\u636e\u540c\u6b65\u3002<\/p>\n<p>\u90e8\u5206\u590d\u5236\u7684\u5b9e\u73b0\uff0c\u4f9d\u8d56\u4e8e\u4e09\u4e2a\u91cd\u8981\u7684\u6982\u5ff5\uff1a<\/p>\n<p>\u590d\u5236\u504f\u79fb\u91cf\uff1a\u4e3b\u8282\u70b9\u548c\u4ece\u8282\u70b9\u5206\u522b\u7ef4\u62a4\u4e00\u4e2a\u590d\u5236\u504f\u79fb\u91cf\uff08offset\uff09\uff0c\u4ee3\u8868\u7684\u662f\u4e3b\u8282\u70b9\u5411\u4ece\u8282\u70b9\u4f20\u9012\u7684\u5b57\u8282\u6570\u3002<\/p>\n<p>\u4e3b\u8282\u70b9\u6bcf\u6b21\u5411\u4ece\u8282\u70b9\u4f20\u64ad N \u4e2a\u5b57\u8282\u6570\u636e\u65f6\uff0c\u4e3b\u8282\u70b9\u7684 offset \u589e\u52a0 N\uff1b\u4ece\u8282\u70b9\u6bcf\u6b21\u6536\u5230\u4e3b\u8282\u70b9\u4f20\u6765\u7684 N \u4e2a\u5b57\u8282\u6570\u636e\u65f6\uff0c\u4ece\u8282\u70b9\u7684 offset \u589e\u52a0 N\u3002<\/p>\n<p>offset \u7528\u4e8e\u5224\u65ad\u4e3b\u4ece\u8282\u70b9\u7684\u6570\u636e\u5e93\u72b6\u6001\u662f\u5426\u4e00\u81f4\uff1a\u5982\u679c\u4e8c\u8005 offset \u76f8\u540c\uff0c\u5219\u4e00\u81f4\uff1b\u5982\u679c offset \u4e0d\u540c\uff0c\u5219\u4e0d\u4e00\u81f4\uff0c\u6b64\u65f6\u53ef\u4ee5\u6839\u636e\u4e24\u4e2a offset \u627e\u51fa\u4ece\u8282\u70b9\u7f3a\u5c11\u7684\u90a3\u90e8\u5206\u6570\u636e\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u4e3b\u8282\u70b9\u7684 offset \u662f 1000\uff0c\u800c\u4ece\u8282\u70b9\u7684 offset \u662f 500\uff0c\u90a3\u4e48\u90e8\u5206\u590d\u5236\u5c31\u9700\u8981\u5c06 offset \u4e3a 501-1000 \u7684\u6570\u636e\u4f20\u9012\u7ed9\u4ece\u8282\u70b9\u3002<\/p>\n<p>\u800c offset \u4e3a 501-1000 \u7684\u6570\u636e\u5b58\u50a8\u7684\u4f4d\u7f6e\uff0c\u5c31\u662f\u4e0b\u9762\u8981\u4ecb\u7ecd\u7684\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u3002<\/p>\n<p>\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\uff1a\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u662f\u7531\u4e3b\u8282\u70b9\u7ef4\u62a4\u7684\u3001\u56fa\u5b9a\u957f\u5ea6\u7684\u3001\u5148\u8fdb\u5148\u51fa(FIFO)\u961f\u5217\uff0c\u9ed8\u8ba4\u5927\u5c0f 1MB\u3002<\/p>\n<p>\u5f53\u4e3b\u8282\u70b9\u5f00\u59cb\u6709\u4ece\u8282\u70b9\u65f6\u521b\u5efa\uff0c\u5176\u4f5c\u7528\u662f\u5907\u4efd\u4e3b\u8282\u70b9\u6700\u8fd1\u53d1\u9001\u7ed9\u4ece\u8282\u70b9\u7684\u6570\u636e\u3002\u6ce8\u610f\uff0c\u65e0\u8bba\u4e3b\u8282\u70b9\u6709\u4e00\u4e2a\u8fd8\u662f\u591a\u4e2a\u4ece\u8282\u70b9\uff0c\u90fd\u53ea\u9700\u8981\u4e00\u4e2a\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u3002<\/p>\n<p>\u5728\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5\uff0c\u4e3b\u8282\u70b9\u9664\u4e86\u5c06\u5199\u547d\u4ee4\u53d1\u9001\u7ed9\u4ece\u8282\u70b9\uff0c\u8fd8\u4f1a\u53d1\u9001\u4e00\u4efd\u7ed9\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\uff0c\u4f5c\u4e3a\u5199\u547d\u4ee4\u7684\u5907\u4efd\uff1b\u9664\u4e86\u5b58\u50a8\u5199\u547d\u4ee4\uff0c\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u4e2d\u8fd8\u5b58\u50a8\u4e86\u5176\u4e2d\u7684\u6bcf\u4e2a\u5b57\u8282\u5bf9\u5e94\u7684\u590d\u5236\u504f\u79fb\u91cf\uff08offset\uff09\u3002<\/p>\n<p>\u7531\u4e8e\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u5b9a\u957f\u4e14\u662f\u5148\u8fdb\u5148\u51fa\uff0c\u6240\u4ee5\u5b83\u4fdd\u5b58\u7684\u662f\u4e3b\u8282\u70b9\u6700\u8fd1\u6267\u884c\u7684\u5199\u547d\u4ee4\uff1b\u65f6\u95f4\u8f83\u65e9\u7684\u5199\u547d\u4ee4\u4f1a\u88ab\u6324\u51fa\u7f13\u51b2\u533a\u3002<\/p>\n<p>\u7531\u4e8e\u8be5\u7f13\u51b2\u533a\u957f\u5ea6\u56fa\u5b9a\u4e14\u6709\u9650\uff0c\u56e0\u6b64\u53ef\u4ee5\u5907\u4efd\u7684\u5199\u547d\u4ee4\u4e5f\u6709\u9650\uff0c\u5f53\u4e3b\u4ece\u8282\u70b9 offset \u7684\u5dee\u8ddd\u8fc7\u5927\u8d85\u8fc7\u7f13\u51b2\u533a\u957f\u5ea6\u65f6\uff0c\u5c06\u65e0\u6cd5\u6267\u884c\u90e8\u5206\u590d\u5236\uff0c\u53ea\u80fd\u6267\u884c\u5168\u91cf\u590d\u5236\u3002<\/p>\n<p>\u53cd\u8fc7\u6765\u8bf4\uff0c\u4e3a\u4e86\u63d0\u9ad8\u7f51\u7edc\u4e2d\u65ad\u65f6\u90e8\u5206\u590d\u5236\u6267\u884c\u7684\u6982\u7387\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u589e\u5927\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u7684\u5927\u5c0f(\u901a\u8fc7\u914d\u7f6erepl-backlog-size)\u3002<\/p>\n<p>\u4f8b\u5982\u5982\u679c\u7f51\u7edc\u4e2d\u65ad\u7684\u5e73\u5747\u65f6\u95f4\u662f 60s\uff0c\u800c\u4e3b\u8282\u70b9\u5e73\u5747\u6bcf\u79d2\u4ea7\u751f\u7684\u5199\u547d\u4ee4(\u7279\u5b9a\u534f\u8bae\u683c\u5f0f)\u6240\u5360\u7684\u5b57\u8282\u6570\u4e3a 100KB\uff0c\u5219\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u7684\u5e73\u5747\u9700\u6c42\u4e3a 6MB\u3002<\/p>\n<p>\u4fdd\u9669\u8d77\u89c1\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u4e3a 12MB\uff0c\u6765\u4fdd\u8bc1\u7edd\u5927\u591a\u6570\u65ad\u7ebf\u60c5\u51b5\u90fd\u53ef\u4ee5\u4f7f\u7528\u90e8\u5206\u590d\u5236\u3002<\/p>\n<p>\u4ece\u8282\u70b9\u5c06 offset \u53d1\u9001\u7ed9\u4e3b\u8282\u70b9\u540e\uff0c\u4e3b\u8282\u70b9\u6839\u636e offset \u548c\u7f13\u51b2\u533a\u5927\u5c0f\u51b3\u5b9a\u80fd\u5426\u6267\u884c\u90e8\u5206\u590d\u5236\uff1a<\/p>\n<ul>\n<li>\n<p>\u5982\u679c offset \u504f\u79fb\u91cf\u4e4b\u540e\u7684\u6570\u636e\uff0c\u4ecd\u7136\u90fd\u5728\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u91cc\uff0c\u5219\u6267\u884c\u90e8\u5206\u590d\u5236\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c offset \u504f\u79fb\u91cf\u4e4b\u540e\u7684\u6570\u636e\u5df2\u4e0d\u5728\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u4e2d\uff08\u6570\u636e\u5df2\u88ab\u6324\u51fa\uff09\uff0c\u5219\u6267\u884c\u5168\u91cf\u590d\u5236\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u670d\u52a1\u5668\u8fd0\u884c ID(runid)\uff1a\u6bcf\u4e2a Redis \u8282\u70b9(\u65e0\u8bba\u4e3b\u4ece)\uff0c\u5728\u542f\u52a8\u65f6\u90fd\u4f1a\u81ea\u52a8\u751f\u6210\u4e00\u4e2a\u968f\u673a ID(\u6bcf\u6b21\u542f\u52a8\u90fd\u4e0d\u4e00\u6837)\uff0c\u7531 40 \u4e2a\u968f\u673a\u7684\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u7ec4\u6210\uff1brunid \u7528\u6765\u552f\u4e00\u8bc6\u522b\u4e00\u4e2a Redis \u8282\u70b9\u3002<\/p>\n<p>\u901a\u8fc7 info Server \u547d\u4ee4\uff0c\u53ef\u4ee5\u67e5\u770b\u8282\u70b9\u7684 runid\uff1a<\/p>\n<\/p>\n<p>\u4e3b\u4ece\u8282\u70b9\u521d\u6b21\u590d\u5236\u65f6\uff0c\u4e3b\u8282\u70b9\u5c06\u81ea\u5df1\u7684 runid \u53d1\u9001\u7ed9\u4ece\u8282\u70b9\uff0c\u4ece\u8282\u70b9\u5c06\u8fd9\u4e2a runid \u4fdd\u5b58\u8d77\u6765\uff1b\u5f53\u65ad\u7ebf\u91cd\u8fde\u65f6\uff0c\u4ece\u8282\u70b9\u4f1a\u5c06\u8fd9\u4e2a runid \u53d1\u9001\u7ed9\u4e3b\u8282\u70b9\u3002<\/p>\n<p>\u4e3b\u8282\u70b9\u6839\u636e runid \u5224\u65ad\u80fd\u5426\u8fdb\u884c\u90e8\u5206\u590d\u5236\uff1a<\/p>\n<ul>\n<li>\n<p>\u5982\u679c\u4ece\u8282\u70b9\u4fdd\u5b58\u7684 runid \u4e0e\u4e3b\u8282\u70b9\u73b0\u5728\u7684 runid \u76f8\u540c\uff0c\u8bf4\u660e\u4e3b\u4ece\u8282\u70b9\u4e4b\u524d\u540c\u6b65\u8fc7\uff0c\u4e3b\u8282\u70b9\u4f1a\u7ee7\u7eed\u5c1d\u8bd5\u4f7f\u7528\u90e8\u5206\u590d\u5236(\u5230\u5e95\u80fd\u4e0d\u80fd\u90e8\u5206\u590d\u5236\u8fd8\u8981\u770b offset \u548c\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u7684\u60c5\u51b5)\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u4ece\u8282\u70b9\u4fdd\u5b58\u7684 runid \u4e0e\u4e3b\u8282\u70b9\u73b0\u5728\u7684 runid \u4e0d\u540c\uff0c\u8bf4\u660e\u4ece\u8282\u70b9\u5728\u65ad\u7ebf\u524d\u540c\u6b65\u7684 Redis \u8282\u70b9\u5e76\u4e0d\u662f\u5f53\u524d\u7684\u4e3b\u8282\u70b9\uff0c\u53ea\u80fd\u8fdb\u884c\u5168\u91cf\u590d\u5236\u3002<\/p>\n<\/li>\n<\/ul>\n<p>psync \u547d\u4ee4\u7684\u6267\u884c\uff1a\u5728\u4e86\u89e3\u4e86\u590d\u5236\u504f\u79fb\u91cf\u3001\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u3001\u8282\u70b9\u8fd0\u884c id \u4e4b\u540e\uff0c\u672c\u8282\u5c06\u4ecb\u7ecd psync \u547d\u4ee4\u7684\u53c2\u6570\u548c\u8fd4\u56de\u503c\uff0c\u4ece\u800c\u8bf4\u660e psync \u547d\u4ee4\u6267\u884c\u8fc7\u7a0b\u4e2d\uff0c\u4e3b\u4ece\u8282\u70b9\u662f\u5982\u4f55\u786e\u5b9a\u4f7f\u7528\u5168\u91cf\u590d\u5236\u8fd8\u662f\u90e8\u5206\u590d\u5236\u7684\u3002<\/p>\n<p>psync \u547d\u4ee4\u7684\u6267\u884c\u8fc7\u7a0b\u53ef\u4ee5\u53c2\u89c1\u4e0b\u56fe\uff1a<\/p>\n<\/p>\n<p>\u9996\u5148\uff0c\u4ece\u8282\u70b9\u6839\u636e\u5f53\u524d\u72b6\u6001\uff0c\u51b3\u5b9a\u5982\u4f55\u8c03\u7528 psync \u547d\u4ee4\uff1a<\/p>\n<ul>\n<li>\n<p>\u5982\u679c\u4ece\u8282\u70b9\u4e4b\u524d\u672a\u6267\u884c\u8fc7 slaveof \u6216\u6700\u8fd1\u6267\u884c\u4e86 slaveof no one\uff0c\u5219\u4ece\u8282\u70b9\u53d1\u9001\u547d\u4ee4\u4e3a psync ? -1\uff0c\u5411\u4e3b\u8282\u70b9\u8bf7\u6c42\u5168\u91cf\u590d\u5236\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u4ece\u8282\u70b9\u4e4b\u524d\u6267\u884c\u4e86 slaveof\uff0c\u5219\u53d1\u9001\u547d\u4ee4\u4e3a psync \uff0c\u5176\u4e2d runid \u4e3a\u4e0a\u6b21\u590d\u5236\u7684\u4e3b\u8282\u70b9\u7684 runid\uff0coffset \u4e3a\u4e0a\u6b21\u590d\u5236\u622a\u6b62\u65f6\u4ece\u8282\u70b9\u4fdd\u5b58\u7684\u590d\u5236\u504f\u79fb\u91cf\u3002 <\/p>\n<\/li>\n<\/ul>\n<p>\u4e3b\u8282\u70b9\u6839\u636e\u6536\u5230\u7684psync\u547d\u4ee4\uff0c\u53ca\u5f53\u524d\u670d\u52a1\u5668\u72b6\u6001\uff0c\u51b3\u5b9a\u6267\u884c\u5168\u91cf\u590d\u5236\u8fd8\u662f\u90e8\u5206\u590d\u5236\uff1a<\/p>\n<ul>\n<li>\n<p>\u5982\u679c\u4e3b\u8282\u70b9\u7248\u672c\u4f4e\u4e8e Redis 2.8\uff0c\u5219\u8fd4\u56de -ERR \u56de\u590d\uff0c\u6b64\u65f6\u4ece\u8282\u70b9\u91cd\u65b0\u53d1\u9001 sync \u547d\u4ee4\u6267\u884c\u5168\u91cf\u590d\u5236\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u4e3b\u8282\u70b9\u7248\u672c\u591f\u65b0\uff0c\u4e14 runid \u4e0e\u4ece\u8282\u70b9\u53d1\u9001\u7684 runid \u76f8\u540c\uff0c\u4e14\u4ece\u8282\u70b9\u53d1\u9001\u7684 offset \u4e4b\u540e\u7684\u6570\u636e\u5728\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u4e2d\u90fd\u5b58\u5728\uff0c\u5219\u56de\u590d +CONTINUE\uff0c\u8868\u793a\u5c06\u8fdb\u884c\u90e8\u5206\u590d\u5236\uff0c\u4ece\u8282\u70b9\u7b49\u5f85\u4e3b\u8282\u70b9\u53d1\u9001\u5176\u7f3a\u5c11\u7684\u6570\u636e\u5373\u53ef\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u4e3b\u8282\u70b9\u7248\u672c\u591f\u65b0\uff0c\u4f46\u662f runid \u4e0e\u4ece\u8282\u70b9\u53d1\u9001\u7684 runid \u4e0d\u540c\uff0c\u6216\u4ece\u8282\u70b9\u53d1\u9001\u7684 offset \u4e4b\u540e\u7684\u6570\u636e\u5df2\u4e0d\u5728\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u4e2d(\u5728\u961f\u5217\u4e2d\u88ab\u6324\u51fa\u4e86)\uff0c\u5219\u56de\u590d +FULLRESYNC \uff0c\u8868\u793a\u8981\u8fdb\u884c\u5168\u91cf\u590d\u5236\u3002 <\/p>\n<\/li>\n<\/ul>\n<p>\u5176\u4e2d runid \u8868\u793a\u4e3b\u8282\u70b9\u5f53\u524d\u7684 runid\uff0coffset \u8868\u793a\u4e3b\u8282\u70b9\u5f53\u524d\u7684 offset\uff0c\u4ece\u8282\u70b9\u4fdd\u5b58\u8fd9\u4e24\u4e2a\u503c\uff0c\u4ee5\u5907\u4f7f\u7528\u3002<\/p>\n<p>\u90e8\u5206\u590d\u5236\u6f14\u793a\uff1a\u5728\u4e0b\u9762\u7684\u6f14\u793a\u4e2d\uff0c\u7f51\u7edc\u4e2d\u65ad\u51e0\u5206\u949f\u540e\u6062\u590d\uff0c\u65ad\u5f00\u8fde\u63a5\u7684\u4e3b\u4ece\u8282\u70b9\u8fdb\u884c\u4e86\u90e8\u5206\u590d\u5236\uff1b\u4e3a\u4e86\u4fbf\u4e8e\u6a21\u62df\u7f51\u7edc\u4e2d\u65ad\uff0c\u672c\u4f8b\u4e2d\u7684\u4e3b\u4ece\u8282\u70b9\u5728\u5c40\u57df\u7f51\u4e2d\u7684\u4e24\u53f0\u673a\u5668\u4e0a\u3002<\/p>\n<p>\u7f51\u7edc\u4e2d\u65ad\u4e00\u6bb5\u65f6\u95f4\u540e\uff0c\u4e3b\u8282\u70b9\u548c\u4ece\u8282\u70b9\u90fd\u4f1a\u53d1\u73b0\u5931\u53bb\u4e86\u4e0e\u5bf9\u65b9\u7684\u8fde\u63a5\uff08\u5173\u4e8e\u4e3b\u4ece\u8282\u70b9\u5bf9\u8d85\u65f6\u7684\u5224\u65ad\u673a\u5236\uff0c\u540e\u9762\u4f1a\u6709\u8bf4\u660e\uff09\u3002<\/p>\n<p>\u6b64\u540e\uff0c\u4ece\u8282\u70b9\u4fbf\u5f00\u59cb\u6267\u884c\u5bf9\u4e3b\u8282\u70b9\u7684\u91cd\u8fde\uff0c\u7531\u4e8e\u6b64\u65f6\u7f51\u7edc\u8fd8\u6ca1\u6709\u6062\u590d\uff0c\u91cd\u8fde\u5931\u8d25\uff0c\u4ece\u8282\u70b9\u4f1a\u4e00\u76f4\u5c1d\u8bd5\u91cd\u8fde\u3002<\/p>\n<p>\u4e3b\u8282\u70b9\u65e5\u5fd7\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p>\u4ece\u8282\u70b9\u65e5\u5fd7\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p>\u7f51\u7edc\u6062\u590d\u540e\uff0c\u4ece\u8282\u70b9\u8fde\u63a5\u4e3b\u8282\u70b9\u6210\u529f\uff0c\u5e76\u8bf7\u6c42\u8fdb\u884c\u90e8\u5206\u590d\u5236\uff0c\u4e3b\u8282\u70b9\u63a5\u6536\u8bf7\u6c42\u540e\uff0c\u4e8c\u8005\u8fdb\u884c\u90e8\u5206\u590d\u5236\u4ee5\u540c\u6b65\u6570\u636e\u3002<\/p>\n<p>\u4e3b\u8282\u70b9\u65e5\u5fd7\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p>\u4ece\u8282\u70b9\u65e5\u5fd7\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><strong><span style=\"font-size: large\">\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5\uff1a\u5fc3\u8df3\u673a\u5236<\/span><\/strong><\/p>\n<p>\u5728\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5\uff0c\u9664\u4e86\u53d1\u9001\u5199\u547d\u4ee4\uff0c\u4e3b\u4ece\u8282\u70b9\u8fd8\u7ef4\u6301\u7740\u5fc3\u8df3\u673a\u5236\uff1aPING \u548c REPLCONF ACK\u3002\u5fc3\u8df3\u673a\u5236\u5bf9\u4e8e\u4e3b\u4ece\u590d\u5236\u7684\u8d85\u65f6\u5224\u65ad\u3001\u6570\u636e\u5b89\u5168\u7b49\u6709\u4f5c\u7528\u3002<\/p>\n<p><strong>\u4e3b-&gt;\u4ece\uff1aPING<\/strong><\/p>\n<p>\u6bcf\u9694\u6307\u5b9a\u7684\u65f6\u95f4\uff0c\u4e3b\u8282\u70b9\u4f1a\u5411\u4ece\u8282\u70b9\u53d1\u9001 PING \u547d\u4ee4\uff0c\u8fd9\u4e2a PING \u547d\u4ee4\u7684\u4f5c\u7528\uff0c\u4e3b\u8981\u662f\u4e3a\u4e86\u8ba9\u4ece\u8282\u70b9\u8fdb\u884c\u8d85\u65f6\u5224\u65ad\u3002<\/p>\n<p>PING \u53d1\u9001\u7684\u9891\u7387\u7531 repl-ping-slave-period \u53c2\u6570\u63a7\u5236\uff0c\u5355\u4f4d\u662f\u79d2\uff0c\u9ed8\u8ba4\u503c\u662f 10s\u3002<\/p>\n<p>\u5173\u4e8e\u8be5 PING \u547d\u4ee4\u7a76\u7adf\u662f\u7531\u4e3b\u8282\u70b9\u53d1\u7ed9\u4ece\u8282\u70b9\uff0c\u8fd8\u662f\u76f8\u53cd\uff0c\u6709\u4e00\u4e9b\u4e89\u8bae\uff1b\u56e0\u4e3a\u5728 Redis \u7684\u5b98\u65b9\u6587\u6863\u4e2d\uff0c\u5bf9\u8be5\u53c2\u6570\u7684\u6ce8\u91ca\u4e2d\u8bf4\u660e\u662f\u4ece\u8282\u70b9\u5411\u4e3b\u8282\u70b9\u53d1\u9001 PING \u547d\u4ee4\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<\/p>\n<p>\u4f46\u662f\u6839\u636e\u8be5\u53c2\u6570\u7684\u540d\u79f0(\u542b\u6709 ping-slave)\uff0c\u4ee5\u53ca\u4ee3\u7801\u5b9e\u73b0\uff0c\u6211\u8ba4\u4e3a\u8be5 PING \u547d\u4ee4\u662f\u4e3b\u8282\u70b9\u53d1\u7ed9\u4ece\u8282\u70b9\u7684\u3002<\/p>\n<p>\u76f8\u5173\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><strong>\u4ece-&gt;\u4e3b\uff1aREPLCONF ACK<\/strong><\/p>\n<p>\u5728\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5\uff0c\u4ece\u8282\u70b9\u4f1a\u5411\u4e3b\u8282\u70b9\u53d1\u9001 REPLCONF ACK \u547d\u4ee4\uff0c\u9891\u7387\u662f\u6bcf\u79d2 1 \u6b21\uff1b\u547d\u4ee4\u683c\u5f0f\u4e3a\uff1aREPLCONF ACK {offset}\uff0c\u5176\u4e2d offset \u6307\u4ece\u8282\u70b9\u4fdd\u5b58\u7684\u590d\u5236\u504f\u79fb\u91cf\u3002<\/p>\n<p>REPLCONF ACK \u547d\u4ee4\u7684\u4f5c\u7528\u5305\u62ec\uff1a<\/p>\n<p>\u5b9e\u65f6\u76d1\u6d4b\u4e3b\u4ece\u8282\u70b9\u7f51\u7edc\u72b6\u6001\uff1a\u8be5\u547d\u4ee4\u4f1a\u88ab\u4e3b\u8282\u70b9\u7528\u4e8e\u590d\u5236\u8d85\u65f6\u7684\u5224\u65ad\u3002\u6b64\u5916\uff0c\u5728\u4e3b\u8282\u70b9\u4e2d\u4f7f\u7528 info Replication\uff0c\u53ef\u4ee5\u770b\u5230\u5176\u4ece\u8282\u70b9\u7684\u72b6\u6001\u4e2d\u7684 lag \u503c\uff0c\u4ee3\u8868\u7684\u662f\u4e3b\u8282\u70b9\u4e0a\u6b21\u6536\u5230\u8be5 REPLCONF ACK \u547d\u4ee4\u7684\u65f6\u95f4\u95f4\u9694\u3002<\/p>\n<p>\u5728\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u8be5\u503c\u5e94\u8be5\u662f 0 \u6216 1\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<\/p>\n<p>\u68c0\u6d4b\u547d\u4ee4\u4e22\u5931\uff1a\u4ece\u8282\u70b9\u53d1\u9001\u4e86\u81ea\u8eab\u7684 offset\uff0c\u4e3b\u8282\u70b9\u4f1a\u4e0e\u81ea\u5df1\u7684 offset \u5bf9\u6bd4\uff0c\u5982\u679c\u4ece\u8282\u70b9\u6570\u636e\u7f3a\u5931\uff08\u5982\u7f51\u7edc\u4e22\u5305\uff09\uff0c\u4e3b\u8282\u70b9\u4f1a\u63a8\u9001\u7f3a\u5931\u7684\u6570\u636e\uff08\u8fd9\u91cc\u4e5f\u4f1a\u5229\u7528\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\uff09\u3002<\/p>\n<p>\u6ce8\u610f\uff0coffset \u548c\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\uff0c\u4e0d\u4ec5\u53ef\u4ee5\u7528\u4e8e\u90e8\u5206\u590d\u5236\uff0c\u4e5f\u53ef\u4ee5\u7528\u4e8e\u5904\u7406\u547d\u4ee4\u4e22\u5931\u7b49\u60c5\u5f62\uff1b\u533a\u522b\u5728\u4e8e\u524d\u8005\u662f\u5728\u65ad\u7ebf\u91cd\u8fde\u540e\u8fdb\u884c\u7684\uff0c\u800c\u540e\u8005\u662f\u5728\u4e3b\u4ece\u8282\u70b9\u6ca1\u6709\u65ad\u7ebf\u7684\u60c5\u51b5\u4e0b\u8fdb\u884c\u7684\u3002<\/p>\n<p>\u8f85\u52a9\u4fdd\u8bc1\u4ece\u8282\u70b9\u7684\u6570\u91cf\u548c\u5ef6\u8fdf\uff1aRedis \u4e3b\u8282\u70b9\u4e2d\u4f7f\u7528 min-slaves-to-write \u548c min-slaves-max-lag \u53c2\u6570\uff0c\u6765\u4fdd\u8bc1\u4e3b\u8282\u70b9\u5728\u4e0d\u5b89\u5168\u7684\u60c5\u51b5\u4e0b\u4e0d\u4f1a\u6267\u884c\u5199\u547d\u4ee4\uff1b\u6240\u8c13\u4e0d\u5b89\u5168\uff0c\u662f\u6307\u4ece\u8282\u70b9\u6570\u91cf\u592a\u5c11\uff0c\u6216\u5ef6\u8fdf\u8fc7\u9ad8\u3002<\/p>\n<p>\u4f8b\u5982 min-slaves-to-write \u548c min-slaves-max-lag \u5206\u522b\u662f 3 \u548c 10\uff0c\u542b\u4e49\u662f\u5982\u679c\u4ece\u8282\u70b9\u6570\u91cf\u5c0f\u4e8e 3 \u4e2a\uff0c\u6216\u6240\u6709\u4ece\u8282\u70b9\u7684\u5ef6\u8fdf\u503c\u90fd\u5927\u4e8e 10s\uff0c\u5219\u4e3b\u8282\u70b9\u62d2\u7edd\u6267\u884c\u5199\u547d\u4ee4\u3002<\/p>\n<p>\u800c\u8fd9\u91cc\u4ece\u8282\u70b9\u5ef6\u8fdf\u503c\u7684\u83b7\u53d6\uff0c\u5c31\u662f\u901a\u8fc7\u4e3b\u8282\u70b9\u63a5\u6536\u5230 REPLCONF ACK \u547d\u4ee4\u7684\u65f6\u95f4\u6765\u5224\u65ad\u7684\uff0c\u5373\u524d\u9762\u6240\u8bf4\u7684 info Replication \u4e2d\u7684 lag \u503c\u3002<\/p>\n<p><strong><span style=\"font-size: x-large\">\u5e94\u7528\u4e2d\u7684\u95ee\u9898<\/span><\/strong><\/p>\n<p><strong><span style=\"font-size: large\">\u8bfb\u5199\u5206\u79bb\u53ca\u5176\u4e2d\u7684\u95ee\u9898<\/span><\/strong><\/p>\n<p>\u5728\u4e3b\u4ece\u590d\u5236\u57fa\u7840\u4e0a\u5b9e\u73b0\u7684\u8bfb\u5199\u5206\u79bb\uff0c\u53ef\u4ee5\u5b9e\u73b0 Redis \u7684\u8bfb\u8d1f\u8f7d\u5747\u8861\u3002<\/p>\n<p>\u7531\u4e3b\u8282\u70b9\u63d0\u4f9b\u5199\u670d\u52a1\uff0c\u7531\u4e00\u4e2a\u6216\u591a\u4e2a\u4ece\u8282\u70b9\u63d0\u4f9b\u8bfb\u670d\u52a1\uff08\u591a\u4e2a\u4ece\u8282\u70b9\u65e2\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u5197\u4f59\u7a0b\u5ea6\uff0c\u4e5f\u53ef\u4ee5***\u5316\u8bfb\u8d1f\u8f7d\u80fd\u529b\uff09\uff1b\u5728\u8bfb\u8d1f\u8f7d\u8f83\u5927\u7684\u5e94\u7528\u573a\u666f\u4e0b\uff0c\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8 Redis \u670d\u52a1\u5668\u7684\u5e76\u53d1\u91cf\u3002<\/p>\n<p>\u4e0b\u9762\u4ecb\u7ecd\u5728\u4f7f\u7528 Redis \u8bfb\u5199\u5206\u79bb\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u7684\u95ee\u9898\u3002<\/p>\n<p><strong>\u5ef6\u8fdf\u4e0e\u4e0d\u4e00\u81f4\u95ee\u9898<\/strong><\/p>\n<p>\u524d\u9762\u5df2\u7ecf\u8bb2\u5230\uff0c\u7531\u4e8e\u4e3b\u4ece\u590d\u5236\u7684\u547d\u4ee4\u4f20\u64ad\u662f\u5f02\u6b65\u7684\uff0c\u5ef6\u8fdf\u4e0e\u6570\u636e\u7684\u4e0d\u4e00\u81f4\u4e0d\u53ef\u907f\u514d\u3002<\/p>\n<p>\u5982\u679c\u5e94\u7528\u5bf9\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u63a5\u53d7\u7a0b\u5ea6\u7a0b\u5ea6\u8f83\u4f4e\uff0c\u53ef\u80fd\u7684\u4f18\u5316\u63aa\u65bd\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\n<p>\u4f18\u5316\u4e3b\u4ece\u8282\u70b9\u4e4b\u95f4\u7684\u7f51\u7edc\u73af\u5883\uff08\u5982\u5728\u540c\u673a\u623f\u90e8\u7f72\uff09\u3002<\/p>\n<\/li>\n<li>\n<p>\u76d1\u63a7\u4e3b\u4ece\u8282\u70b9\u5ef6\u8fdf\uff08\u901a\u8fc7 offset\uff09\u5224\u65ad\uff0c\u5982\u679c\u4ece\u8282\u70b9\u5ef6\u8fdf\u8fc7\u5927\uff0c\u901a\u77e5\u5e94\u7528\u4e0d\u518d\u901a\u8fc7\u8be5\u4ece\u8282\u70b9\u8bfb\u53d6\u6570\u636e\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528\u96c6\u7fa4\u540c\u65f6\u6269\u5c55\u5199\u8d1f\u8f7d\u548c\u8bfb\u8d1f\u8f7d\u7b49\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5728\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5\u4ee5\u5916\u7684\u5176\u4ed6\u60c5\u51b5\u4e0b\uff0c\u4ece\u8282\u70b9\u7684\u6570\u636e\u4e0d\u4e00\u81f4\u53ef\u80fd\u66f4\u52a0\u4e25\u91cd\uff0c\u4f8b\u5982\u8fde\u63a5\u5728\u6570\u636e\u540c\u6b65\u9636\u6bb5\uff0c\u6216\u4ece\u8282\u70b9\u5931\u53bb\u4e0e\u4e3b\u8282\u70b9\u7684\u8fde\u63a5\u65f6\u7b49\u3002<\/p>\n<p>\u4ece\u8282\u70b9\u7684 slave-serve-stale-data \u53c2\u6570\u4fbf\u4e0e\u6b64\u6709\u5173\uff1a\u5b83\u63a7\u5236\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4ece\u8282\u70b9\u7684\u8868\u73b0\uff1b\u5982\u679c\u4e3a yes\uff08\u9ed8\u8ba4\u503c\uff09\uff0c\u5219\u4ece\u8282\u70b9\u4ecd\u80fd\u591f\u54cd\u5e94\u5ba2\u6237\u7aef\u7684\u547d\u4ee4\uff0c\u5982\u679c\u4e3a no\uff0c\u5219\u4ece\u8282\u70b9\u53ea\u80fd\u54cd\u5e94 info\u3001slaveof \u7b49\u5c11\u6570\u547d\u4ee4\u3002<\/p>\n<p>\u8be5\u53c2\u6570\u7684\u8bbe\u7f6e\u4e0e\u5e94\u7528\u5bf9\u6570\u636e\u4e00\u81f4\u6027\u7684\u8981\u6c42\u6709\u5173\uff1b\u5982\u679c\u5bf9\u6570\u636e\u4e00\u81f4\u6027\u8981\u6c42\u5f88\u9ad8\uff0c\u5219\u5e94\u8bbe\u7f6e\u4e3a no\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u6570\u636e\u8fc7\u671f\u95ee\u9898<\/span><\/strong><\/p>\n<p>\u5728\u5355\u673a\u7248 Redis \u4e2d\uff0c\u5b58\u5728\u4e24\u79cd\u5220\u9664\u7b56\u7565\uff1a<\/p>\n<ul>\n<li>\n<p>\u60f0\u6027\u5220\u9664\uff1a\u670d\u52a1\u5668\u4e0d\u4f1a\u4e3b\u52a8\u5220\u9664\u6570\u636e\uff0c\u53ea\u6709\u5f53\u5ba2\u6237\u7aef\u67e5\u8be2\u67d0\u4e2a\u6570\u636e\u65f6\uff0c\u670d\u52a1\u5668\u5224\u65ad\u8be5\u6570\u636e\u662f\u5426\u8fc7\u671f\uff0c\u5982\u679c\u8fc7\u671f\u5219\u5220\u9664\u3002<\/p>\n<\/li>\n<li>\n<p>\u5b9a\u671f\u5220\u9664\uff1a\u670d\u52a1\u5668\u6267\u884c\u5b9a\u65f6\u4efb\u52a1\u5220\u9664\u8fc7\u671f\u6570\u636e\uff0c\u4f46\u662f\u8003\u8651\u5230\u5185\u5b58\u548c CPU \u7684\u6298\u4e2d\uff08\u5220\u9664\u4f1a\u91ca\u653e\u5185\u5b58\uff0c\u4f46\u662f\u9891\u7e41\u7684\u5220\u9664\u64cd\u4f5c\u5bf9 CPU \u4e0d\u53cb\u597d\uff09\uff0c\u8be5\u5220\u9664\u7684\u9891\u7387\u548c\u6267\u884c\u65f6\u95f4\u90fd\u53d7\u5230\u4e86\u9650\u5236\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5728\u4e3b\u4ece\u590d\u5236\u573a\u666f\u4e0b\uff0c\u4e3a\u4e86\u4e3b\u4ece\u8282\u70b9\u7684\u6570\u636e\u4e00\u81f4\u6027\uff0c\u4ece\u8282\u70b9\u4e0d\u4f1a\u4e3b\u52a8\u5220\u9664\u6570\u636e\uff0c\u800c\u662f\u7531\u4e3b\u8282\u70b9\u63a7\u5236\u4ece\u8282\u70b9\u4e2d\u8fc7\u671f\u6570\u636e\u7684\u5220\u9664\u3002<\/p>\n<p>\u7531\u4e8e\u4e3b\u8282\u70b9\u7684\u60f0\u6027\u5220\u9664\u548c\u5b9a\u671f\u5220\u9664\u7b56\u7565\uff0c\u90fd\u4e0d\u80fd\u4fdd\u8bc1\u4e3b\u8282\u70b9\u53ca\u65f6\u5bf9\u8fc7\u671f\u6570\u636e\u6267\u884c\u5220\u9664\u64cd\u4f5c\uff0c\u56e0\u6b64\uff0c\u5f53\u5ba2\u6237\u7aef\u901a\u8fc7 Redis \u4ece\u8282\u70b9\u8bfb\u53d6\u6570\u636e\u65f6\uff0c\u5f88\u5bb9\u6613\u8bfb\u53d6\u5230\u5df2\u7ecf\u8fc7\u671f\u7684\u6570\u636e\u3002<\/p>\n<p>\u5728 Redis 3.2 \u4e2d\uff0c\u4ece\u8282\u70b9\u5728\u8bfb\u53d6\u6570\u636e\u65f6\uff0c\u589e\u52a0\u4e86\u5bf9\u6570\u636e\u662f\u5426\u8fc7\u671f\u7684\u5224\u65ad\uff1a\u5982\u679c\u8be5\u6570\u636e\u5df2\u8fc7\u671f\uff0c\u5219\u4e0d\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff1b\u5c06 Redis \u5347\u7ea7\u5230 3.2 \u53ef\u4ee5\u89e3\u51b3\u6570\u636e\u8fc7\u671f\u95ee\u9898\u3002<\/p>\n<p><strong>\u6545\u969c\u5207\u6362\u95ee\u9898<\/strong><\/p>\n<p>\u5728\u6ca1\u6709\u4f7f\u7528\u54e8\u5175\u7684\u8bfb\u5199\u5206\u79bb\u573a\u666f\u4e0b\uff0c\u5e94\u7528\u9488\u5bf9\u8bfb\u548c\u5199\u5206\u522b\u8fde\u63a5\u4e0d\u540c\u7684 Redis \u8282\u70b9\u3002<\/p>\n<p>\u5f53\u4e3b\u8282\u70b9\u6216\u4ece\u8282\u70b9\u51fa\u73b0\u95ee\u9898\u800c\u53d1\u751f\u66f4\u6539\u65f6\uff0c\u9700\u8981\u53ca\u65f6\u4fee\u6539\u5e94\u7528\u7a0b\u5e8f\u8bfb\u5199 Redis \u6570\u636e\u7684\u8fde\u63a5\uff1b\u8fde\u63a5\u7684\u5207\u6362\u53ef\u4ee5\u624b\u52a8\u8fdb\u884c\uff0c\u6216\u8005\u81ea\u5df1\u5199\u76d1\u63a7\u7a0b\u5e8f\u8fdb\u884c\u5207\u6362\uff0c\u4f46\u524d\u8005\u54cd\u5e94\u6162\u3001\u5bb9\u6613\u51fa\u9519\uff0c\u540e\u8005\u5b9e\u73b0\u590d\u6742\uff0c\u6210\u672c\u90fd\u4e0d\u7b97\u4f4e\u3002<\/p>\n<p>\u603b\u7ed3\uff1a\u5728\u4f7f\u7528\u8bfb\u5199\u5206\u79bb\u4e4b\u524d\uff0c\u53ef\u4ee5\u8003\u8651\u5176\u4ed6\u65b9\u6cd5\u589e\u52a0 Redis \u7684\u8bfb\u8d1f\u8f7d\u80fd\u529b\uff1a\u5982\u5c3d\u91cf\u4f18\u5316\u4e3b\u8282\u70b9\uff08\u51cf\u5c11\u6162\u67e5\u8be2\u3001\u51cf\u5c11\u6301\u4e45\u5316\u7b49\u5176\u4ed6\u60c5\u51b5\u5e26\u6765\u7684\u963b\u585e\u7b49\uff09\u63d0\u9ad8\u8d1f\u8f7d\u80fd\u529b\uff1b\u4f7f\u7528 Redis \u96c6\u7fa4\u540c\u65f6\u63d0\u9ad8\u8bfb\u8d1f\u8f7d\u80fd\u529b\u548c\u5199\u8d1f\u8f7d\u80fd\u529b\u7b49\u3002<\/p>\n<p>\u5982\u679c\u4f7f\u7528\u8bfb\u5199\u5206\u79bb\uff0c\u53ef\u4ee5\u4f7f\u7528\u54e8\u5175\uff0c\u4f7f\u4e3b\u4ece\u8282\u70b9\u7684\u6545\u969c\u5207\u6362\u5c3d\u53ef\u80fd\u81ea\u52a8\u5316\uff0c\u5e76\u51cf\u5c11\u5bf9\u5e94\u7528\u7a0b\u5e8f\u7684\u4fb5\u5165\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u590d\u5236\u8d85\u65f6\u95ee\u9898<\/span><\/strong><\/p>\n<p>\u4e3b\u4ece\u8282\u70b9\u590d\u5236\u8d85\u65f6\u662f\u5bfc\u81f4\u590d\u5236\u4e2d\u65ad\u7684\u6700\u91cd\u8981\u7684\u539f\u56e0\u4e4b\u4e00\uff0c\u672c\u5c0f\u8282\u5355\u72ec\u8bf4\u660e\u8d85\u65f6\u95ee\u9898\uff0c\u4e0b\u4e00\u5c0f\u8282\u8bf4\u660e\u5176\u4ed6\u4f1a\u5bfc\u81f4\u590d\u5236\u4e2d\u65ad\u7684\u95ee\u9898\u3002<\/p>\n<p><strong>\u8d85\u65f6\u5224\u65ad\u610f\u4e49<\/strong><\/p>\n<p>\u5728\u590d\u5236\u8fde\u63a5\u5efa\u7acb\u8fc7\u7a0b\u4e2d\u53ca\u4e4b\u540e\uff0c\u4e3b\u4ece\u8282\u70b9\u90fd\u6709\u673a\u5236\u5224\u65ad\u8fde\u63a5\u662f\u5426\u8d85\u65f6\uff0c\u5176\u610f\u4e49\u5728\u4e8e\uff1a<\/p>\n<ul>\n<li>\n<p>\u5982\u679c\u4e3b\u8282\u70b9\u5224\u65ad\u8fde\u63a5\u8d85\u65f6\uff0c\u5176\u4f1a\u91ca\u653e\u76f8\u5e94\u4ece\u8282\u70b9\u7684\u8fde\u63a5\uff0c\u4ece\u800c\u91ca\u653e\u5404\u79cd\u8d44\u6e90\uff0c\u5426\u5219\u65e0\u6548\u7684\u4ece\u8282\u70b9\u4ecd\u4f1a\u5360\u7528\u4e3b\u8282\u70b9\u7684\u5404\u79cd\u8d44\u6e90\uff08\u8f93\u51fa\u7f13\u51b2\u533a\u3001\u5e26\u5bbd\u3001\u8fde\u63a5\u7b49\uff09\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u6b64\u5916\u8fde\u63a5\u8d85\u65f6\u7684\u5224\u65ad\u53ef\u4ee5\u8ba9\u4e3b\u8282\u70b9\u66f4\u51c6\u786e\u7684\u77e5\u9053\u5f53\u524d\u6709\u6548\u4ece\u8282\u70b9\u7684\u4e2a\u6570\uff0c\u6709\u52a9\u4e8e\u4fdd\u8bc1\u6570\u636e\u5b89\u5168\uff08\u914d\u5408\u524d\u9762\u8bb2\u5230\u7684 min-slaves-to-write \u7b49\u53c2\u6570\uff09\u3002<\/p>\n<ul>\n<li>\n<p>\u5982\u679c\u4ece\u8282\u70b9\u5224\u65ad\u8fde\u63a5\u8d85\u65f6\uff0c\u5219\u53ef\u4ee5\u53ca\u65f6\u91cd\u65b0\u5efa\u7acb\u8fde\u63a5\uff0c\u907f\u514d\u4e0e\u4e3b\u8282\u70b9\u6570\u636e\u957f\u671f\u7684\u4e0d\u4e00\u81f4\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong>\u5224\u65ad\u673a\u5236<\/strong><\/p>\n<p>\u4e3b\u4ece\u590d\u5236\u8d85\u65f6\u5224\u65ad\u7684\u6838\u5fc3\uff0c\u5728\u4e8e repl-timeout \u53c2\u6570\uff0c\u8be5\u53c2\u6570\u89c4\u5b9a\u4e86\u8d85\u65f6\u65f6\u95f4\u7684\u9608\u503c\uff08\u9ed8\u8ba4 60s\uff09\uff0c\u5bf9\u4e8e\u4e3b\u8282\u70b9\u548c\u4ece\u8282\u70b9\u540c\u65f6\u6709\u6548\u3002<\/p>\n<ul>\n<li>\n<p>\u4e3b\u4ece\u8282\u70b9\u89e6\u53d1\u8d85\u65f6\u7684\u6761\u4ef6\u5206\u522b\u5982\u4e0b\uff1a<\/p>\n<\/li>\n<li>\n<p>\u4e3b\u8282\u70b9\uff1a\u6bcf\u79d21\u6b21\u8c03\u7528\u590d\u5236\u5b9a\u65f6\u51fd\u6570 replicationCron()\uff0c\u5728\u5176\u4e2d\u5224\u65ad\u5f53\u524d\u65f6\u95f4\u8ddd\u79bb\u4e0a\u6b21\u6536\u5230\u5404\u4e2a\u4ece\u8282\u70b9 REPLCONF ACK \u7684\u65f6\u95f4\uff0c\u662f\u5426\u8d85\u8fc7\u4e86 repl-timeout \u503c\uff0c\u5982\u679c\u8d85\u8fc7\u4e86\u5219\u91ca\u653e\u76f8\u5e94\u4ece\u8282\u70b9\u7684\u8fde\u63a5\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4ece\u8282\u70b9\uff1a\u4ece\u8282\u70b9\u5bf9\u8d85\u65f6\u7684\u5224\u65ad\u540c\u6837\u662f\u5728\u590d\u5236\u5b9a\u65f6\u51fd\u6570\u4e2d\u5224\u65ad\u3002<\/p>\n<p>\u4ece\u8282\u70b9\u7684\u57fa\u672c\u903b\u8f91\u662f\uff1a<\/p>\n<ul>\n<li>\n<p>\u5982\u679c\u5f53\u524d\u5904\u4e8e\u8fde\u63a5\u5efa\u7acb\u9636\u6bb5\uff0c\u4e14\u8ddd\u79bb\u4e0a\u6b21\u6536\u5230\u4e3b\u8282\u70b9\u7684\u4fe1\u606f\u7684\u65f6\u95f4\u5df2\u8d85\u8fc7 repl-timeout\uff0c\u5219\u91ca\u653e\u4e0e\u4e3b\u8282\u70b9\u7684\u8fde\u63a5\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u5f53\u524d\u5904\u4e8e\u6570\u636e\u540c\u6b65\u9636\u6bb5\uff0c\u4e14\u6536\u5230\u4e3b\u8282\u70b9\u7684 RDB \u6587\u4ef6\u7684\u65f6\u95f4\u8d85\u65f6\uff0c\u5219\u505c\u6b62\u6570\u636e\u540c\u6b65\uff0c\u91ca\u653e\u8fde\u63a5\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u5f53\u524d\u5904\u4e8e\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5\uff0c\u4e14\u8ddd\u79bb\u4e0a\u6b21\u6536\u5230\u4e3b\u8282\u70b9\u7684 PING \u547d\u4ee4\u6216\u6570\u636e\u7684\u65f6\u95f4\u5df2\u8d85\u8fc7 repl-timeout \u503c\uff0c\u5219\u91ca\u653e\u4e0e\u4e3b\u8282\u70b9\u7684\u8fde\u63a5\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4e3b\u4ece\u8282\u70b9\u5224\u65ad\u8fde\u63a5\u8d85\u65f6\u7684\u76f8\u5173\u6e90\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<pre>\/*&nbsp;Replication&nbsp;cron&nbsp;function,&nbsp;called&nbsp;1&nbsp;time&nbsp;per&nbsp;second.&nbsp;*\/&nbsp;\r\nvoid&nbsp;replicationCron(void)&nbsp;{&nbsp;\r\n&nbsp;&nbsp;&nbsp;static&nbsp;long&nbsp;long&nbsp;replication_cron_loops&nbsp;=&nbsp;0;&nbsp;\r\n&nbsp;&nbsp;&nbsp;\/*&nbsp;Non&nbsp;blocking&nbsp;connection&nbsp;timeout?&nbsp;*\/&nbsp;\r\n&nbsp;&nbsp;&nbsp;if&nbsp;(server.masterhost&nbsp;&amp;&amp;&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(server.repl_state&nbsp;==&nbsp;REDIS_REPL_CONNECTING&nbsp;||&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;slaveIsInHandshakeState())&nbsp;&amp;&amp;&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(time(NULL)-server.repl_transfer_lastio)&nbsp;&gt;&nbsp;server.repl_timeout)&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;redisLog(REDIS_WARNING,\"Timeout&nbsp;connecting&nbsp;to&nbsp;the&nbsp;MASTER...\");&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;undoConnectWithMaster();&nbsp;\r\n&nbsp;&nbsp;&nbsp;\/*&nbsp;Bulk&nbsp;transfer&nbsp;I\/O&nbsp;timeout?&nbsp;*\/&nbsp;\r\n&nbsp;&nbsp;&nbsp;if&nbsp;(server.masterhost&nbsp;&amp;&amp;&nbsp;server.repl_state&nbsp;==&nbsp;REDIS_REPL_TRANSFER&nbsp;&amp;&amp;&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(time(NULL)-server.repl_transfer_lastio)&nbsp;&gt;&nbsp;server.repl_timeout)&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;redisLog(REDIS_WARNING,\"Timeout&nbsp;receiving&nbsp;bulk&nbsp;data&nbsp;from&nbsp;MASTER...&nbsp;If&nbsp;the&nbsp;problem&nbsp;persists&nbsp;try&nbsp;to&nbsp;set&nbsp;the&nbsp;'repl-timeout'&nbsp;parameter&nbsp;in&nbsp;redis.conf&nbsp;to&nbsp;a&nbsp;larger&nbsp;value.\");&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;replicationAbortSyncTransfer();&nbsp;\r\n&nbsp;&nbsp;&nbsp;\/*&nbsp;Timed&nbsp;out&nbsp;master&nbsp;when&nbsp;we&nbsp;are&nbsp;an&nbsp;already&nbsp;connected&nbsp;slave?&nbsp;*\/&nbsp;\r\n&nbsp;&nbsp;&nbsp;if&nbsp;(server.masterhost&nbsp;&amp;&amp;&nbsp;server.repl_state&nbsp;==&nbsp;REDIS_REPL_CONNECTED&nbsp;&amp;&amp;&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(time(NULL)-server.master-&gt;lastinteraction)&nbsp;&gt;&nbsp;server.repl_timeout)&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;redisLog(REDIS_WARNING,\"MASTER&nbsp;timeout:&nbsp;no&nbsp;data&nbsp;nor&nbsp;PING&nbsp;received...\");&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;freeClient(server.master);&nbsp;\r\n&nbsp;&nbsp;&nbsp;\/\/\u6b64\u5904\u7701\u7565\u65e0\u5173\u4ee3\u7801\u2026\u2026&nbsp;\r\n&nbsp;&nbsp;&nbsp;\/*&nbsp;Disconnect&nbsp;timedout&nbsp;slaves.&nbsp;*\/&nbsp;\r\n&nbsp;&nbsp;&nbsp;if&nbsp;(listLength(server.slaves))&nbsp;{&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;listIter&nbsp;li;&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;listNode&nbsp;*ln;&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;listRewind(server.slaves,&amp;li);&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;while((ln&nbsp;=&nbsp;listNext(&amp;li)))&nbsp;{&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;redisClient&nbsp;*slave&nbsp;=&nbsp;ln-&gt;value;&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(slave-&gt;replstate&nbsp;!=&nbsp;REDIS_REPL_ONLINE)&nbsp;continue;&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(slave-&gt;flags&nbsp;&amp;&nbsp;REDIS_PRE_PSYNC)&nbsp;continue;&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;((server.unixtime&nbsp;-&nbsp;slave-&gt;repl_ack_time)&nbsp;&gt;&nbsp;server.repl_timeout)&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;redisLog(REDIS_WARNING,&nbsp;\"Disconnecting&nbsp;timedout&nbsp;slave:&nbsp;%s\",&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;replicationGetSlaveName(slave));&nbsp;\r\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;freeClient(slave);&nbsp;\r\n&nbsp;&nbsp;&nbsp;\/\/\u6b64\u5904\u7701\u7565\u65e0\u5173\u4ee3\u7801\u2026\u2026<\/pre>\n<\/p>\n<p><strong>\u9700\u8981\u6ce8\u610f\u7684\u5751<\/strong><\/p>\n<p>\u4e0b\u9762\u4ecb\u7ecd\u4e0e\u590d\u5236\u9636\u6bb5\u8fde\u63a5\u8d85\u65f6\u6709\u5173\u7684\u4e00\u4e9b\u5b9e\u9645\u95ee\u9898\uff1a<\/p>\n<p>\u6570\u636e\u540c\u6b65\u9636\u6bb5\uff1a\u5728\u4e3b\u4ece\u8282\u70b9\u8fdb\u884c\u5168\u91cf\u590d\u5236 bgsave \u65f6\uff0c\u4e3b\u8282\u70b9\u9700\u8981\u9996\u5148 fork \u5b50\u8fdb\u7a0b\u5c06\u5f53\u524d\u6570\u636e\u4fdd\u5b58\u5230 RDB \u6587\u4ef6\u4e2d\uff0c\u7136\u540e\u518d\u5c06 RDB \u6587\u4ef6\u901a\u8fc7\u7f51\u7edc\u4f20\u8f93\u5230\u4ece\u8282\u70b9\u3002<\/p>\n<p>\u5982\u679c RDB \u6587\u4ef6\u8fc7\u5927\uff0c\u4e3b\u8282\u70b9\u5728 fork \u5b50\u8fdb\u7a0b+\u4fdd\u5b58 RDB \u6587\u4ef6\u65f6\u8017\u65f6\u8fc7\u591a\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4ece\u8282\u70b9\u957f\u65f6\u95f4\u6536\u4e0d\u5230\u6570\u636e\u800c\u89e6\u53d1\u8d85\u65f6\u3002<\/p>\n<p>\u6b64\u65f6\u4ece\u8282\u70b9\u4f1a\u91cd\u8fde\u4e3b\u8282\u70b9\uff0c\u7136\u540e\u518d\u6b21\u5168\u91cf\u590d\u5236\uff0c\u518d\u6b21\u8d85\u65f6\uff0c\u518d\u6b21\u91cd\u8fde\u2026\u2026\u8fd9\u662f\u4e2a\u60b2\u4f24\u7684\u5faa\u73af\u3002<\/p>\n<p>\u4e3a\u4e86\u907f\u514d\u8fd9\u79cd\u60c5\u51b5\u7684\u53d1\u751f\uff0c\u9664\u4e86\u6ce8\u610f Redis \u5355\u673a\u6570\u636e\u91cf\u4e0d\u8981\u8fc7\u5927\uff0c\u53e6\u4e00\u65b9\u9762\u5c31\u662f\u9002\u5f53\u589e\u5927 repl-timeout \u503c\uff0c\u5177\u4f53\u7684\u5927\u5c0f\u53ef\u4ee5\u6839\u636e bgsave \u8017\u65f6\u6765\u8c03\u6574\u3002<\/p>\n<p>\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5\uff1a\u5982\u524d\u6240\u8ff0\uff0c\u5728\u8be5\u9636\u6bb5\u4e3b\u8282\u70b9\u4f1a\u5411\u4ece\u8282\u70b9\u53d1\u9001 PING \u547d\u4ee4\uff0c\u9891\u7387\u7531 repl-ping-slave-period \u63a7\u5236\uff1b\u8be5\u53c2\u6570\u5e94\u660e\u663e\u5c0f\u4e8e repl-timeout \u503c(\u540e\u8005\u81f3\u5c11\u662f\u524d\u8005\u7684\u51e0\u500d)\u3002<\/p>\n<p>\u5426\u5219\uff0c\u5982\u679c\u4e24\u4e2a\u53c2\u6570\u76f8\u7b49\u6216\u63a5\u8fd1\uff0c\u7f51\u7edc\u6296\u52a8\u5bfc\u81f4\u4e2a\u522b PING \u547d\u4ee4\u4e22\u5931\uff0c\u6b64\u65f6\u6070\u5de7\u4e3b\u8282\u70b9\u4e5f\u6ca1\u6709\u5411\u4ece\u8282\u70b9\u53d1\u9001\u6570\u636e\uff0c\u5219\u4ece\u8282\u70b9\u5f88\u5bb9\u6613\u5224\u65ad\u8d85\u65f6\u3002<\/p>\n<p>\u6162\u67e5\u8be2\u5bfc\u81f4\u7684\u963b\u585e\uff1a\u5982\u679c\u4e3b\u8282\u70b9\u6216\u4ece\u8282\u70b9\u6267\u884c\u4e86\u4e00\u4e9b\u6162\u67e5\u8be2\uff08\u5982 keys * \u6216\u8005\u5bf9\u5927\u6570\u636e\u7684 hgetall \u7b49\uff09\uff0c\u5bfc\u81f4\u670d\u52a1\u5668\u963b\u585e\uff1b\u963b\u585e\u671f\u95f4\u65e0\u6cd5\u54cd\u5e94\u590d\u5236\u8fde\u63a5\u4e2d\u5bf9\u65b9\u8282\u70b9\u7684\u8bf7\u6c42\uff0c\u53ef\u80fd\u5bfc\u81f4\u590d\u5236\u8d85\u65f6\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u590d\u5236\u4e2d\u65ad\u95ee\u9898<\/span><\/strong><\/p>\n<p>\u4e3b\u4ece\u8282\u70b9\u8d85\u65f6\u662f\u590d\u5236\u4e2d\u65ad\u7684\u539f\u56e0\u4e4b\u4e00\uff0c\u9664\u6b64\u4e4b\u5916\uff0c\u8fd8\u6709\u5176\u4ed6\u60c5\u51b5\u53ef\u80fd\u5bfc\u81f4\u590d\u5236\u4e2d\u65ad\uff0c\u5176\u4e2d\u6700\u4e3b\u8981\u7684\u662f\u590d\u5236\u7f13\u51b2\u533a\u6ea2\u51fa\u95ee\u9898\u3002<\/p>\n<p><strong>\u590d\u5236\u7f13\u51b2\u533a\u6ea2\u51fa<\/strong><\/p>\n<p>\u524d\u9762\u66fe\u63d0\u5230\u8fc7\uff0c\u5728\u5168\u91cf\u590d\u5236\u9636\u6bb5\uff0c\u4e3b\u8282\u70b9\u4f1a\u5c06\u6267\u884c\u7684\u5199\u547d\u4ee4\u653e\u5230\u590d\u5236\u7f13\u51b2\u533a\u4e2d\u3002<\/p>\n<p>\u8be5\u7f13\u51b2\u533a\u5b58\u653e\u7684\u6570\u636e\u5305\u62ec\u4e86\u4ee5\u4e0b\u51e0\u4e2a\u65f6\u95f4\u6bb5\u5185\u4e3b\u8282\u70b9\u6267\u884c\u7684\u5199\u547d\u4ee4\uff1a<\/p>\n<ul>\n<li>\n<p>bgsave \u751f\u6210 RDB \u6587\u4ef6\u3002<\/p>\n<\/li>\n<li>\n<p>RDB \u6587\u4ef6\u7531\u4e3b\u8282\u70b9\u53d1\u5f80\u4ece\u8282\u70b9\u3002<\/p>\n<\/li>\n<li>\n<p>\u4ece\u8282\u70b9\u6e05\u7a7a\u8001\u6570\u636e\u5e76\u8f7d\u5165 RDB \u6587\u4ef6\u4e2d\u7684\u6570\u636e\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5f53\u4e3b\u8282\u70b9\u6570\u636e\u91cf\u8f83\u5927\uff0c\u6216\u8005\u4e3b\u4ece\u8282\u70b9\u4e4b\u95f4\u7f51\u7edc\u5ef6\u8fdf\u8f83\u5927\u65f6\uff0c\u53ef\u80fd\u5bfc\u81f4\u8be5\u7f13\u51b2\u533a\u7684\u5927\u5c0f\u8d85\u8fc7\u4e86\u9650\u5236\uff0c\u6b64\u65f6\u4e3b\u8282\u70b9\u4f1a\u65ad\u5f00\u4e0e\u4ece\u8282\u70b9\u4e4b\u95f4\u7684\u8fde\u63a5\u3002<\/p>\n<p>\u8fd9\u79cd\u60c5\u51b5\u53ef\u80fd\u5f15\u8d77\u5168\u91cf\u590d\u5236\u2192\u590d\u5236\u7f13\u51b2\u533a\u6ea2\u51fa\u5bfc\u81f4\u8fde\u63a5\u4e2d\u65ad\u2192\u91cd\u8fde\u2192\u5168\u91cf\u590d\u5236\u2192\u590d\u5236\u7f13\u51b2\u533a\u6ea2\u51fa\u5bfc\u81f4\u8fde\u63a5\u4e2d\u65ad\u2026\u2026\u7684\u5faa\u73af\u3002<\/p>\n<p>\u590d\u5236\u7f13\u51b2\u533a\u7684\u5927\u5c0f\u7531 client-output-buffer-limit slave {hard limit} {soft limit} {soft seconds} \u914d\u7f6e\uff0c\u9ed8\u8ba4\u503c\u4e3a client-output-buffer-limit slave 256MB 64MB 60\u3002<\/p>\n<p>\u5176\u542b\u4e49\u662f\uff1a\u5982\u679c buffer \u5927\u4e8e 256MB\uff0c\u6216\u8005\u8fde\u7eed 60s \u5927\u4e8e 64MB\uff0c\u5219\u4e3b\u8282\u70b9\u4f1a\u65ad\u5f00\u4e0e\u8be5\u4ece\u8282\u70b9\u7684\u8fde\u63a5\u3002\u8be5\u53c2\u6570\u662f\u53ef\u4ee5\u901a\u8fc7 config set \u547d\u4ee4\u52a8\u6001\u914d\u7f6e\u7684\uff08\u5373\u4e0d\u91cd\u542f Redis \u4e5f\u53ef\u4ee5\u751f\u6548\uff09\u3002<\/p>\n<p>\u5f53\u590d\u5236\u7f13\u51b2\u533a\u6ea2\u51fa\u65f6\uff0c\u4e3b\u8282\u70b9\u6253\u5370\u65e5\u5fd7\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u590d\u5236\u7f13\u51b2\u533a\u662f\u5ba2\u6237\u7aef\u8f93\u51fa\u7f13\u51b2\u533a\u7684\u4e00\u79cd\uff0c\u4e3b\u8282\u70b9\u4f1a\u4e3a\u6bcf\u4e00\u4e2a\u4ece\u8282\u70b9\u5206\u522b\u5206\u914d\u590d\u5236\u7f13\u51b2\u533a\uff1b\u800c\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u5219\u662f\u4e00\u4e2a\u4e3b\u8282\u70b9\u53ea\u6709\u4e00\u4e2a\uff0c\u65e0\u8bba\u5b83\u6709\u591a\u5c11\u4e2a\u4ece\u8282\u70b9\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u5404\u573a\u666f\u4e0b\u590d\u5236\u7684\u9009\u62e9\u53ca\u4f18\u5316\u6280\u5de7<\/span><\/strong><\/p>\n<p>\u5728\u4ecb\u7ecd\u4e86 Redis \u590d\u5236\u7684\u79cd\u79cd\u7ec6\u8282\u4e4b\u540e\uff0c\u73b0\u5728\u6211\u4eec\u53ef\u4ee5\u6765\u603b\u7ed3\u4e00\u4e0b\uff0c\u5728\u4e0b\u9762\u5e38\u89c1\u7684\u573a\u666f\u4e2d\uff0c\u4f55\u65f6\u4f7f\u7528\u90e8\u5206\u590d\u5236\uff0c\u4ee5\u53ca\u9700\u8981\u6ce8\u610f\u54ea\u4e9b\u95ee\u9898\u3002<\/p>\n<p><strong>***\u6b21\u5efa\u7acb\u590d\u5236<\/strong><\/p>\n<p>\u6b64\u65f6\u5168\u91cf\u590d\u5236\u4e0d\u53ef\u907f\u514d\uff0c\u4f46\u4ecd\u6709\u51e0\u70b9\u9700\u8981\u6ce8\u610f\uff1a\u5982\u679c\u4e3b\u8282\u70b9\u7684\u6570\u636e\u91cf\u8f83\u5927\uff0c\u5e94\u8be5\u5c3d\u91cf\u907f\u5f00\u6d41\u91cf\u7684\u9ad8\u5cf0\u671f\uff0c\u907f\u514d\u9020\u6210\u963b\u585e\u3002<\/p>\n<p>\u5982\u679c\u6709\u591a\u4e2a\u4ece\u8282\u70b9\u9700\u8981\u5efa\u7acb\u5bf9\u4e3b\u8282\u70b9\u7684\u590d\u5236\uff0c\u53ef\u4ee5\u8003\u8651\u5c06\u51e0\u4e2a\u4ece\u8282\u70b9\u9519\u5f00\uff0c\u907f\u514d\u4e3b\u8282\u70b9\u5e26\u5bbd\u5360\u7528\u8fc7\u5927\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u5982\u679c\u4ece\u8282\u70b9\u8fc7\u591a\uff0c\u4e5f\u53ef\u4ee5\u8c03\u6574\u4e3b\u4ece\u590d\u5236\u7684\u62d3\u6251\u7ed3\u6784\uff0c\u7531\u4e00\u4e3b\u591a\u4ece\u7ed3\u6784\u53d8\u4e3a\u6811\u72b6\u7ed3\u6784\uff08\u4e2d\u95f4\u7684\u8282\u70b9\u65e2\u662f\u5176\u4e3b\u8282\u70b9\u7684\u4ece\u8282\u70b9\uff0c\u4e5f\u662f\u5176\u4ece\u8282\u70b9\u7684\u4e3b\u8282\u70b9\uff09\u3002<\/p>\n<p>\u4f46\u4f7f\u7528\u6811\u72b6\u7ed3\u6784\u5e94\u8be5\u8c28\u614e\uff1a\u867d\u7136\u4e3b\u8282\u70b9\u7684\u76f4\u63a5\u4ece\u8282\u70b9\u51cf\u5c11\uff0c\u964d\u4f4e\u4e86\u4e3b\u8282\u70b9\u7684\u8d1f\u62c5\uff0c\u4f46\u662f\u591a\u5c42\u4ece\u8282\u70b9\u7684\u5ef6\u8fdf\u589e\u5927\uff0c\u6570\u636e\u4e00\u81f4\u6027\u53d8\u5dee\uff1b\u4e14\u7ed3\u6784\u590d\u6742\uff0c\u7ef4\u62a4\u76f8\u5f53\u56f0\u96be\u3002<\/p>\n<p><strong>\u4e3b\u8282\u70b9\u91cd\u542f<\/strong><\/p>\n<p>\u4e3b\u8282\u70b9\u91cd\u542f\u53ef\u4ee5\u5206\u4e3a\u4e24\u79cd\u60c5\u51b5\u6765\u8ba8\u8bba\uff0c\u4e00\u79cd\u662f\u6545\u969c\u5bfc\u81f4\u5b95\u673a\uff0c\u53e6\u4e00\u79cd\u5219\u662f\u6709\u8ba1\u5212\u7684\u91cd\u542f\u3002<\/p>\n<p>\u4e3b\u8282\u70b9\u5b95\u673a\uff1a\u4e3b\u8282\u70b9\u5b95\u673a\u91cd\u542f\u540e\uff0crunid \u4f1a\u53d1\u751f\u53d8\u5316\uff0c\u56e0\u6b64\u4e0d\u80fd\u8fdb\u884c\u90e8\u5206\u590d\u5236\uff0c\u53ea\u80fd\u5168\u91cf\u590d\u5236\u3002<\/p>\n<p>\u5b9e\u9645\u4e0a\u5728\u4e3b\u8282\u70b9\u5b95\u673a\u7684\u60c5\u51b5\u4e0b\uff0c\u5e94\u8fdb\u884c\u6545\u969c\u8f6c\u79fb\u5904\u7406\uff0c\u5c06\u5176\u4e2d\u7684\u4e00\u4e2a\u4ece\u8282\u70b9\u5347\u7ea7\u4e3a\u4e3b\u8282\u70b9\uff0c\u5176\u4ed6\u4ece\u8282\u70b9\u4ece\u65b0\u7684\u4e3b\u8282\u70b9\u8fdb\u884c\u590d\u5236\uff1b\u4e14\u6545\u969c\u8f6c\u79fb\u5e94\u5c3d\u91cf\u7684\u81ea\u52a8\u5316\uff0c\u540e\u9762\u6587\u7ae0\u5c06\u8981\u4ecb\u7ecd\u7684\u54e8\u5175\u4fbf\u53ef\u4ee5\u8fdb\u884c\u81ea\u52a8\u7684\u6545\u969c\u8f6c\u79fb\u3002<\/p>\n<p>\u5b89\u5168\u91cd\u542f debug reload\uff1a\u5728\u4e00\u4e9b\u573a\u666f\u4e0b\uff0c\u53ef\u80fd\u5e0c\u671b\u5bf9\u4e3b\u8282\u70b9\u8fdb\u884c\u91cd\u542f\uff0c\u4f8b\u5982\u4e3b\u8282\u70b9\u5185\u5b58\u788e\u7247\u7387\u8fc7\u9ad8\uff0c\u6216\u8005\u5e0c\u671b\u8c03\u6574\u4e00\u4e9b\u53ea\u80fd\u5728\u542f\u52a8\u65f6\u8c03\u6574\u7684\u53c2\u6570\u3002<\/p>\n<p>\u5982\u679c\u4f7f\u7528\u666e\u901a\u7684\u624b\u6bb5\u91cd\u542f\u4e3b\u8282\u70b9\uff0c\u4f1a\u4f7f\u5f97 runid \u53d1\u751f\u53d8\u5316\uff0c\u53ef\u80fd\u5bfc\u81f4\u4e0d\u5fc5\u8981\u7684\u5168\u91cf\u590d\u5236\u3002<\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0cRedis \u63d0\u4f9b\u4e86 debug reload \u7684\u91cd\u542f\u65b9\u5f0f\uff1a\u91cd\u542f\u540e\uff0c\u4e3b\u8282\u70b9\u7684 runid \u548c offset \u90fd\u4e0d\u53d7\u5f71\u54cd\uff0c\u907f\u514d\u4e86\u5168\u91cf\u590d\u5236\u3002<\/p>\n<p>\u5982\u4e0b\u56fe\u6240\u793a\uff0cdebug reload \u91cd\u542f\u540e runid \u548c offset \u90fd\u672a\u53d7\u5f71\u54cd\uff1a<\/p>\n<\/p>\n<p>\u4f46 debug reload \u662f\u4e00\u67c4\u53cc\u5203\u5251\uff1a\u5b83\u4f1a\u6e05\u7a7a\u5f53\u524d\u5185\u5b58\u4e2d\u7684\u6570\u636e\uff0c\u91cd\u65b0\u4ece RDB \u6587\u4ef6\u4e2d\u52a0\u8f7d\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u4f1a\u5bfc\u81f4\u4e3b\u8282\u70b9\u7684\u963b\u585e\uff0c\u56e0\u6b64\u4e5f\u9700\u8981\u8c28\u614e\u3002<\/p>\n<p><strong>\u4ece\u8282\u70b9\u91cd\u542f<\/strong><\/p>\n<p>\u4ece\u8282\u70b9\u5b95\u673a\u91cd\u542f\u540e\uff0c\u5176\u4fdd\u5b58\u7684\u4e3b\u8282\u70b9\u7684 runid \u4f1a\u4e22\u5931\uff0c\u56e0\u6b64\u5373\u4f7f\u518d\u6b21\u6267\u884c slaveof\uff0c\u4e5f\u65e0\u6cd5\u8fdb\u884c\u90e8\u5206\u590d\u5236\u3002<\/p>\n<p>\u7f51\u7edc\u4e2d\u65ad<\/p>\n<p>\u5982\u679c\u4e3b\u4ece\u8282\u70b9\u4e4b\u95f4\u51fa\u73b0\u7f51\u7edc\u95ee\u9898\uff0c\u9020\u6210\u77ed\u65f6\u95f4\u5185\u7f51\u7edc\u4e2d\u65ad\uff0c\u53ef\u4ee5\u5206\u4e3a\u591a\u79cd\u60c5\u51b5\u8ba8\u8bba\u3002<\/p>\n<p>***\u79cd\u60c5\u51b5\uff1a\u7f51\u7edc\u95ee\u9898\u65f6\u95f4\u6781\u4e3a\u77ed\u6682\uff0c\u53ea\u9020\u6210\u4e86\u77ed\u6682\u7684\u4e22\u5305\uff0c\u4e3b\u4ece\u8282\u70b9\u90fd\u6ca1\u6709\u5224\u5b9a\u8d85\u65f6\uff08\u672a\u89e6\u53d1 repl-timeout\uff09\uff1b\u6b64\u65f6\u53ea\u9700\u8981\u901a\u8fc7 REPLCONF ACK \u6765\u8865\u5145\u4e22\u5931\u7684\u6570\u636e\u5373\u53ef\u3002<\/p>\n<p>\u7b2c\u4e8c\u79cd\u60c5\u51b5\uff1a\u7f51\u7edc\u95ee\u9898\u65f6\u95f4\u5f88\u957f\uff0c\u4e3b\u4ece\u8282\u70b9\u5224\u65ad\u8d85\u65f6\uff08\u89e6\u53d1\u4e86 repl-timeout\uff09\uff0c\u4e14\u4e22\u5931\u7684\u6570\u636e\u8fc7\u591a\uff0c\u8d85\u8fc7\u4e86\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u6240\u80fd\u5b58\u50a8\u7684\u8303\u56f4\uff1b\u6b64\u65f6\u4e3b\u4ece\u8282\u70b9\u65e0\u6cd5\u8fdb\u884c\u90e8\u5206\u590d\u5236\uff0c\u53ea\u80fd\u8fdb\u884c\u5168\u91cf\u590d\u5236\u3002<\/p>\n<p>\u4e3a\u4e86\u5c3d\u53ef\u80fd\u907f\u514d\u8fd9\u79cd\u60c5\u51b5\u7684\u53d1\u751f\uff0c\u5e94\u8be5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u9002\u5f53\u8c03\u6574\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u7684\u5927\u5c0f\uff1b\u6b64\u5916\u53ca\u65f6\u53d1\u73b0\u5e76\u4fee\u590d\u7f51\u7edc\u4e2d\u65ad\uff0c\u4e5f\u53ef\u4ee5\u51cf\u5c11\u5168\u91cf\u590d\u5236\u3002<\/p>\n<p>\u7b2c\u4e09\u79cd\u60c5\u51b5\uff1a\u4ecb\u4e8e\u524d\u8ff0\u4e24\u79cd\u60c5\u51b5\u4e4b\u95f4\uff0c\u4e3b\u4ece\u8282\u70b9\u5224\u65ad\u8d85\u65f6\uff0c\u4e14\u4e22\u5931\u7684\u6570\u636e\u4ecd\u7136\u90fd\u5728\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u4e2d\uff1b\u6b64\u65f6\u4e3b\u4ece\u8282\u70b9\u53ef\u4ee5\u8fdb\u884c\u90e8\u5206\u590d\u5236\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u590d\u5236\u76f8\u5173\u7684\u914d\u7f6e<\/span><\/strong><\/p>\n<p>\u8fd9\u4e00\u8282\u603b\u7ed3\u4e00\u4e0b\u4e0e\u590d\u5236\u6709\u5173\u7684\u914d\u7f6e\uff0c\u8bf4\u660e\u8fd9\u4e9b\u914d\u7f6e\u7684\u4f5c\u7528\u3001\u8d77\u4f5c\u7528\u7684\u9636\u6bb5\uff0c\u4ee5\u53ca\u914d\u7f6e\u65b9\u6cd5\u7b49\u3002<\/p>\n<p>\u901a\u8fc7\u4e86\u89e3\u8fd9\u4e9b\u914d\u7f6e\uff0c\u4e00\u65b9\u9762\u52a0\u6df1\u5bf9 Redis \u590d\u5236\u7684\u4e86\u89e3\uff0c\u53e6\u4e00\u65b9\u9762\u638c\u63e1\u8fd9\u4e9b\u914d\u7f6e\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u4f18\u5316 Redis \u7684\u4f7f\u7528\uff0c\u5c11\u8d70\u5751\u3002<\/p>\n<p>\u914d\u7f6e\u5927\u81f4\u53ef\u4ee5\u5206\u4e3a\u4e3b\u8282\u70b9\u76f8\u5173\u914d\u7f6e\u3001\u4ece\u8282\u70b9\u76f8\u5173\u914d\u7f6e\u4ee5\u53ca\u4e0e\u4e3b\u4ece\u8282\u70b9\u90fd\u6709\u5173\u7684\u914d\u7f6e\uff0c\u4e0b\u9762\u5206\u522b\u8bf4\u660e\u3002<\/p>\n<p><strong>\u4e0e\u4e3b\u4ece\u8282\u70b9\u90fd\u6709\u5173\u7684\u914d\u7f6e<\/strong><\/p>\n<p>\u9996\u5148\u4ecb\u7ecd\u6700\u7279\u6b8a\u7684\u914d\u7f6e\uff0c\u5b83\u51b3\u5b9a\u4e86\u8be5\u8282\u70b9\u662f\u4e3b\u8282\u70b9\u8fd8\u662f\u4ece\u8282\u70b9\uff1a<\/p>\n<ul>\n<li>\n<p>slaveof \uff1aRedis \u542f\u52a8\u65f6\u8d77\u4f5c\u7528\uff1b\u4f5c\u7528\u662f\u5efa\u7acb\u590d\u5236\u5173\u7cfb\uff0c\u5f00\u542f\u4e86\u8be5\u914d\u7f6e\u7684 Redis \u670d\u52a1\u5668\u5728\u542f\u52a8\u540e\u6210\u4e3a\u4ece\u8282\u70b9\u3002\u8be5\u6ce8\u91ca\u9ed8\u8ba4\u6ce8\u91ca\u6389\uff0c\u5373 Redis \u670d\u52a1\u5668\u9ed8\u8ba4\u90fd\u662f\u4e3b\u8282\u70b9\u3002 <\/p>\n<\/li>\n<li>\n<p>repl-timeout 60\uff1a\u4e0e\u5404\u4e2a\u9636\u6bb5\u4e3b\u4ece\u8282\u70b9\u8fde\u63a5\u8d85\u65f6\u5224\u65ad\u6709\u5173\uff0c\u89c1\u524d\u9762\u7684\u4ecb\u7ecd\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong>\u4e3b\u8282\u70b9\u76f8\u5173\u914d\u7f6e<\/strong><\/p>\n<p>repl-diskless-sync no\uff1a\u4f5c\u7528\u4e8e\u5168\u91cf\u590d\u5236\u9636\u6bb5\uff0c\u63a7\u5236\u4e3b\u8282\u70b9\u662f\u5426\u4f7f\u7528 diskless \u590d\u5236\uff08\u65e0\u76d8\u590d\u5236\uff09\u3002<\/p>\n<p>\u6240\u8c13 diskless \u590d\u5236\uff0c\u662f\u6307\u5728\u5168\u91cf\u590d\u5236\u65f6\uff0c\u4e3b\u8282\u70b9\u4e0d\u518d\u5148\u628a\u6570\u636e\u5199\u5165 RDB \u6587\u4ef6\uff0c\u800c\u662f\u76f4\u63a5\u5199\u5165 slave \u7684 socket \u4e2d\uff0c\u6574\u4e2a\u8fc7\u7a0b\u4e2d\u4e0d\u6d89\u53ca\u786c\u76d8\u3002<\/p>\n<p>diskless \u590d\u5236\u5728\u78c1\u76d8 IO \u5f88\u6162\u800c\u7f51\u901f\u5f88\u5feb\u65f6\u66f4\u6709\u4f18\u52bf\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u622a\u81f3 Redis 3.0\uff0cdiskless \u590d\u5236\u5904\u4e8e\u5b9e\u9a8c\u9636\u6bb5\uff0c\u9ed8\u8ba4\u662f\u5173\u95ed\u7684\u3002<\/p>\n<p>repl-diskless-sync-delay 5\uff1a\u8be5\u914d\u7f6e\u4f5c\u7528\u4e8e\u5168\u91cf\u590d\u5236\u9636\u6bb5\uff0c\u5f53\u4e3b\u8282\u70b9\u4f7f\u7528 diskless \u590d\u5236\u65f6\uff0c\u8be5\u914d\u7f6e\u51b3\u5b9a\u4e3b\u8282\u70b9\u5411\u4ece\u8282\u70b9\u53d1\u9001\u4e4b\u524d\u505c\u987f\u7684\u65f6\u95f4\uff0c\u5355\u4f4d\u662f\u79d2\uff1b\u53ea\u6709\u5f53 diskless \u590d\u5236\u6253\u5f00\u65f6\u6709\u6548\uff0c\u9ed8\u8ba4 5s\u3002<\/p>\n<p>\u4e4b\u6240\u4ee5\u8bbe\u7f6e\u505c\u987f\u65f6\u95f4\uff0c\u662f\u57fa\u4e8e\u4ee5\u4e0b\u4e24\u4e2a\u8003\u8651\uff1a<\/p>\n<ul>\n<li>\n<p>\u5411 slave \u7684 socket \u7684\u4f20\u8f93\u4e00\u65e6\u5f00\u59cb\uff0c\u65b0\u8fde\u63a5\u7684 slave \u53ea\u80fd\u7b49\u5f85\u5f53\u524d\u6570\u636e\u4f20\u8f93\u7ed3\u675f\uff0c\u624d\u80fd\u5f00\u59cb\u65b0\u7684\u6570\u636e\u4f20\u8f93\u3002<\/p>\n<\/li>\n<li>\n<p>\u591a\u4e2a\u4ece\u8282\u70b9\u6709\u8f83\u5927\u7684\u6982\u7387\u5728\u77ed\u65f6\u95f4\u5185\u5efa\u7acb\u4e3b\u4ece\u590d\u5236\u3002<\/p>\n<\/li>\n<\/ul>\n<p>client-output-buffer-limit slave 256MB 64MB 60\uff1a\u4e0e\u5168\u91cf\u590d\u5236\u9636\u6bb5\u4e3b\u8282\u70b9\u7684\u7f13\u51b2\u533a\u5927\u5c0f\u6709\u5173\uff0c\u89c1\u524d\u9762\u7684\u4ecb\u7ecd\u3002<\/p>\n<p>repl-disable-tcp-nodelay no\uff1a\u4e0e\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5\u7684\u5ef6\u8fdf\u6709\u5173\uff0c\u89c1\u524d\u9762\u7684\u4ecb\u7ecd\u3002<\/p>\n<p>masterauth \uff1a\u4e0e\u8fde\u63a5\u5efa\u7acb\u9636\u6bb5\u7684\u8eab\u4efd\u9a8c\u8bc1\u6709\u5173\uff0c\u89c1\u524d\u9762\u7684\u4ecb\u7ecd\u3002 <\/p>\n<p>repl-ping-slave-period 10\uff1a\u4e0e\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5\u4e3b\u4ece\u8282\u70b9\u7684\u8d85\u65f6\u5224\u65ad\u6709\u5173\uff0c\u89c1\u524d\u9762\u7684\u4ecb\u7ecd\u3002<\/p>\n<p>repl-backlog-size 1mb\uff1a\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u7684\u5927\u5c0f\uff0c\u89c1\u524d\u9762\u7684\u4ecb\u7ecd\u3002<\/p>\n<p>repl-backlog-ttl 3600\uff1a\u5f53\u4e3b\u8282\u70b9\u6ca1\u6709\u4ece\u8282\u70b9\u65f6\uff0c\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u4fdd\u7559\u7684\u65f6\u95f4\uff0c\u8fd9\u6837\u5f53\u65ad\u5f00\u7684\u4ece\u8282\u70b9\u91cd\u65b0\u8fde\u8fdb\u6765\u65f6\uff0c\u53ef\u4ee5\u8fdb\u884c\u5168\u91cf\u590d\u5236\uff1b\u9ed8\u8ba4 3600s\u3002\u5982\u679c\u8bbe\u7f6e\u4e3a 0\uff0c\u5219\u6c38\u8fdc\u4e0d\u4f1a\u91ca\u653e\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u3002<\/p>\n<p>min-slaves-to-write 3 \u4e0e min-slaves-max-lag 10\uff1a\u89c4\u5b9a\u4e86\u4e3b\u8282\u70b9\u7684\u6700\u5c0f\u4ece\u8282\u70b9\u6570\u76ee\uff0c\u53ca\u5bf9\u5e94\u7684***\u5ef6\u8fdf\uff0c\u89c1\u524d\u9762\u7684\u4ecb\u7ecd\u3002<\/p>\n<p><strong>\u4ece\u8282\u70b9\u76f8\u5173\u914d\u7f6e<\/strong><\/p>\n<p>slave-serve-stale-data yes\uff1a\u4e0e\u4ece\u8282\u70b9\u6570\u636e\u9648\u65e7\u65f6\u662f\u5426\u54cd\u5e94\u5ba2\u6237\u7aef\u547d\u4ee4\u6709\u5173\uff0c\u89c1\u524d\u9762\u7684\u4ecb\u7ecd\u3002<\/p>\n<p>slave-read-only yes\uff1a\u4ece\u8282\u70b9\u662f\u5426\u53ea\u8bfb\uff1b\u9ed8\u8ba4\u662f\u53ea\u8bfb\u7684\u3002\u7531\u4e8e\u4ece\u8282\u70b9\u5f00\u542f\u5199\u64cd\u4f5c\u5bb9\u6613\u5bfc\u81f4\u4e3b\u4ece\u8282\u70b9\u7684\u6570\u636e\u4e0d\u4e00\u81f4\uff0c\u56e0\u6b64\u8be5\u914d\u7f6e\u5c3d\u91cf\u4e0d\u8981\u4fee\u6539\u3002<\/p>\n<p><strong>\u5355\u673a\u5185\u5b58\u5927\u5c0f\u9650\u5236<\/strong><\/p>\n<p>\u5728\u6df1\u5165\u5b66\u4e60 Redis \u6301\u4e45\u5316\u4e00\u6587\u4e2d\uff0c\u8bb2\u5230\u4e86 fork \u64cd\u4f5c\u5bf9 Redis \u5355\u673a\u5185\u5b58\u5927\u5c0f\u7684\u9650\u5236\u3002\u5b9e\u9645\u4e0a\u5728 Redis \u7684\u4f7f\u7528\u4e2d\uff0c\u9650\u5236\u5355\u673a\u5185\u5b58\u5927\u5c0f\u7684\u56e0\u7d20\u975e\u5e38\u4e4b\u591a\u3002<\/p>\n<p>\u4e0b\u9762\u603b\u7ed3\u4e00\u4e0b\u5728\u4e3b\u4ece\u590d\u5236\u4e2d\uff0c\u5355\u673a\u5185\u5b58\u8fc7\u5927\u53ef\u80fd\u9020\u6210\u7684\u5f71\u54cd\uff1a<\/p>\n<ul>\n<li>\n<p>\u5207\u4e3b\uff1a\u5f53\u4e3b\u8282\u70b9\u5b95\u673a\u65f6\uff0c\u4e00\u79cd\u5e38\u89c1\u7684\u5bb9\u707e\u7b56\u7565\u662f\u5c06\u5176\u4e2d\u4e00\u4e2a\u4ece\u8282\u70b9\u63d0\u5347\u4e3a\u4e3b\u8282\u70b9\uff0c\u5e76\u5c06\u5176\u4ed6\u4ece\u8282\u70b9\u6302\u8f7d\u5230\u65b0\u7684\u4e3b\u8282\u70b9\u4e0a\uff0c\u6b64\u65f6\u8fd9\u4e9b\u4ece\u8282\u70b9\u53ea\u80fd\u8fdb\u884c\u5168\u91cf\u590d\u5236\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5982\u679c Redis \u5355\u673a\u5185\u5b58\u8fbe\u5230 10GB\uff0c\u4e00\u4e2a\u4ece\u8282\u70b9\u7684\u540c\u6b65\u65f6\u95f4\u5728\u51e0\u5206\u949f\u7684\u7ea7\u522b\uff1b\u5982\u679c\u4ece\u8282\u70b9\u8f83\u591a\uff0c\u6062\u590d\u7684\u901f\u5ea6\u4f1a\u66f4\u6162\u3002<\/p>\n<p>\u5982\u679c\u7cfb\u7edf\u7684\u8bfb\u8d1f\u8f7d\u5f88\u9ad8\uff0c\u800c\u8fd9\u6bb5\u65f6\u95f4\u4ece\u8282\u70b9\u65e0\u6cd5\u63d0\u4f9b\u670d\u52a1\uff0c\u4f1a\u5bf9\u7cfb\u7edf\u9020\u6210\u5f88\u5927\u7684\u538b\u529b\u3002<\/p>\n<ul>\n<li>\n<p>\u4ece\u5e93\u6269\u5bb9\uff1a\u5982\u679c\u8bbf\u95ee\u91cf\u7a81\u7136\u589e\u5927\uff0c\u6b64\u65f6\u5e0c\u671b\u589e\u52a0\u4ece\u8282\u70b9\u5206\u62c5\u8bfb\u8d1f\u8f7d\uff0c\u5982\u679c\u6570\u636e\u91cf\u8fc7\u5927\uff0c\u4ece\u8282\u70b9\u540c\u6b65\u592a\u6162\uff0c\u96be\u4ee5\u53ca\u65f6\u5e94\u5bf9\u8bbf\u95ee\u91cf\u7684\u66b4\u589e\u3002<\/p>\n<\/li>\n<li>\n<p>\u7f13\u51b2\u533a\u6ea2\u51fa\uff1a\uff081\uff09\u548c\uff082\uff09\u90fd\u662f\u4ece\u8282\u70b9\u53ef\u4ee5\u6b63\u5e38\u540c\u6b65\u7684\u60c5\u5f62\uff08\u867d\u7136\u6162\uff09\uff0c\u4f46\u662f\u5982\u679c\u6570\u636e\u91cf\u8fc7\u5927\uff0c\u5bfc\u81f4\u5168\u91cf\u590d\u5236\u9636\u6bb5\u4e3b\u8282\u70b9\u7684\u590d\u5236\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u4ece\u800c\u5bfc\u81f4\u590d\u5236\u4e2d\u65ad\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5219\u4e3b\u4ece\u8282\u70b9\u7684\u6570\u636e\u540c\u6b65\u4f1a\u5168\u91cf\u590d\u5236\u2192\u590d\u5236\u7f13\u51b2\u533a\u6ea2\u51fa\u5bfc\u81f4\u590d\u5236\u4e2d\u65ad\u2192\u91cd\u8fde\u2192\u5168\u91cf\u590d\u5236\u2192\u590d\u5236\u7f13\u51b2\u533a\u6ea2\u51fa\u5bfc\u81f4\u590d\u5236\u4e2d\u65ad\u2026\u2026\u7684\u5faa\u73af\u3002<\/p>\n<ul>\n<li>\n<p>\u8d85\u65f6\uff1a\u5982\u679c\u6570\u636e\u91cf\u8fc7\u5927\uff0c\u5168\u91cf\u590d\u5236\u9636\u6bb5\u4e3b\u8282\u70b9 fork+ \u4fdd\u5b58 RDB \u6587\u4ef6\u8017\u65f6\u8fc7\u5927\uff0c\u4ece\u8282\u70b9\u957f\u65f6\u95f4\u63a5\u6536\u4e0d\u5230\u6570\u636e\u89e6\u53d1\u8d85\u65f6\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4e3b\u4ece\u8282\u70b9\u7684\u6570\u636e\u540c\u6b65\u540c\u6837\u53ef\u80fd\u9677\u5165\u5168\u91cf\u590d\u5236\u2192\u8d85\u65f6\u5bfc\u81f4\u590d\u5236\u4e2d\u65ad\u2192\u91cd\u8fde\u2192\u5168\u91cf\u590d\u5236\u2192\u8d85\u65f6\u5bfc\u81f4\u590d\u5236\u4e2d\u65ad\u2026\u2026\u7684\u5faa\u73af\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u4e3b\u8282\u70b9\u5355\u673a\u5185\u5b58\u9664\u4e86\u7edd\u5bf9\u91cf\u4e0d\u80fd\u592a\u5927\uff0c\u5176\u5360\u7528\u4e3b\u673a\u5185\u5b58\u7684\u6bd4\u4f8b\u4e5f\u4e0d\u5e94\u8fc7\u5927\uff1a***\u53ea\u4f7f\u7528 50%-65% \u7684\u5185\u5b58\uff0c\u7559\u4e0b 30%-45% \u7684\u5185\u5b58\u7528\u4e8e\u6267\u884c bgsave \u547d\u4ee4\u548c\u521b\u5efa\u590d\u5236\u7f13\u51b2\u533a\u7b49\u3002<\/p>\n<p><span style=\"font-size: large\"><strong>info Replication<\/strong><\/span><\/p>\n<p>\u5728 Redis \u5ba2\u6237\u7aef\u901a\u8fc7 info Replication \u53ef\u4ee5\u67e5\u770b\u4e0e\u590d\u5236\u76f8\u5173\u7684\u72b6\u6001\uff0c\u5bf9\u4e8e\u4e86\u89e3\u4e3b\u4ece\u8282\u70b9\u7684\u5f53\u524d\u72b6\u6001\uff0c\u4ee5\u53ca\u89e3\u51b3\u51fa\u73b0\u7684\u95ee\u9898\u90fd\u4f1a\u6709\u5e2e\u52a9\u3002<\/p>\n<p>\u4e3b\u8282\u70b9\uff1a<\/p>\n<\/p>\n<p>\u4ece\u8282\u70b9\uff1a<\/p>\n<\/p>\n<p>\u5bf9\u4e8e\u4ece\u8282\u70b9\uff0c\u4e0a\u534a\u90e8\u5206\u5c55\u793a\u7684\u662f\u5176\u4f5c\u4e3a\u4ece\u8282\u70b9\u7684\u72b6\u6001\uff0c\u4ece connectd_slaves \u5f00\u59cb\uff0c\u5c55\u793a\u7684\u662f\u5176\u4f5c\u4e3a\u6f5c\u5728\u7684\u4e3b\u8282\u70b9\u7684\u72b6\u6001\u3002<\/p>\n<p>info Replication \u4e2d\u5c55\u793a\u7684\u5927\u90e8\u5206\u5185\u5bb9\u5728\u6587\u7ae0\u4e2d\u90fd\u5df2\u7ecf\u8bb2\u8ff0\uff0c\u8fd9\u91cc\u4e0d\u518d\u8be6\u8ff0\u3002<\/p>\n<p><strong><span style=\"font-size: x-large\">\u603b\u7ed3<\/span><\/strong><\/p>\n<p>\u4e0b\u9762\u56de\u987e\u4e00\u4e0b\u672c\u6587\u7684\u4e3b\u8981\u5185\u5bb9\uff1a<\/p>\n<ul>\n<li>\n<p>\u4e3b\u4ece\u590d\u5236\u7684\u4f5c\u7528\uff1a\u5b8f\u89c2\u7684\u4e86\u89e3\u4e3b\u4ece\u590d\u5236\u662f\u4e3a\u4e86\u89e3\u51b3\u4ec0\u4e48\u6837\u7684\u95ee\u9898\uff0c\u5373\u6570\u636e\u5197\u4f59\u3001\u6545\u969c\u6062\u590d\u3001\u8bfb\u8d1f\u8f7d\u5747\u8861\u7b49\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e3b\u4ece\u590d\u5236\u7684\u64cd\u4f5c\uff1a\u5373 slaveof \u547d\u4ee4\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e3b\u4ece\u590d\u5236\u7684\u539f\u7406\uff1a\u4e3b\u4ece\u590d\u5236\u5305\u62ec\u4e86\u8fde\u63a5\u5efa\u7acb\u9636\u6bb5\u3001\u6570\u636e\u540c\u6b65\u9636\u6bb5\u3001\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5176\u4e2d\u6570\u636e\u540c\u6b65\u9636\u6bb5\uff0c\u6709\u5168\u91cf\u590d\u5236\u548c\u90e8\u5206\u590d\u5236\u4e24\u79cd\u6570\u636e\u540c\u6b65\u65b9\u5f0f\uff1b\u547d\u4ee4\u4f20\u64ad\u9636\u6bb5\uff0c\u4e3b\u4ece\u8282\u70b9\u4e4b\u95f4\u6709 PING \u548c REPLCONF ACK 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