{"id":10007005,"date":"2022-12-22T18:38:28","date_gmt":"2022-12-22T10:38:28","guid":{"rendered":"https:\/\/ityet.com\/?p=10007005"},"modified":"2022-12-22T18:38:28","modified_gmt":"2022-12-22T10:38:28","slug":"redis%e9%ab%98%e5%8f%af%e7%94%a8%e4%b9%8b%e5%93%a8%e5%85%b5%e6%9c%ba%e5%88%b6%e5%ae%9e%e7%8e%b0%e7%bb%86%e8%8a%82","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10007005","title":{"rendered":"Redis\u9ad8\u53ef\u7528\u4e4b\u54e8\u5175\u673a\u5236\u5b9e\u73b0\u7ec6\u8282"},"content":{"rendered":"<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043117425\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h2>Redis\u9ad8\u53ef\u7528\u4e4b\u54e8\u5175\u673a\u5236\u5b9e\u73b0\u7ec6\u8282<\/h2>\n<p>\u672c\u6587\u6765\u81ea\u6211\u7684 technotes [1] Redis\u7bc7\uff0c\u6b22\u8fce\u4f60\u5e38\u6765\u901b\u901b\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043117426\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h3>\u6b63\u6587<\/h3>\n<p>\u5728\u4e0a\u4e00\u7bc7\u7684\u6587\u7ae0<a href=\"https:\/\/link.segmentfault.com\/?enc=BHXTN3By9QC%2FHgXjqPAlQQ%3D%3D.IdOX5bak1WOGPOfFc2H6W9yNutBJcMTWotNZqYP5DOxYfaV9la6a7%2BQhbAmmCUNTiw46ysHTWSQEavc1xpeME1mda74m75eXlvFS3U6WV%2F5qKteehNwf4whmpmuUIDMuPqKYsmroV2uiIEcl4kRifOfljREjgwJtgJyBM6F0aXaHvuOejofCZSiohDgrwK%2Bz8GEKzW7VCOf3dP48FmQUc0jTLR797HFTkeotuFqt8TGWpFSlcMViBhoTVKan72f8kSJCWugOm8JpAACmWkl4nTWw10r03dlo%2FZ4U3X%2FqoGE%3D\" rel=\"nofollow\">\u300aRedis\u9ad8\u53ef\u7528\u5168\u666f\u4e00\u89c8\u300b<\/a>\u4e2d\uff0c\u6211\u4eec\u5b66\u4e60\u4e86 Redis \u7684\u9ad8\u53ef\u7528\u6027\u3002\u9ad8\u53ef\u7528\u6027\u6709\u4e24\u65b9\u9762\u542b\u4e49\uff1a\u4e00\u662f\u670d\u52a1\u5c11\u4e2d\u65ad\uff0c\u4e8c\u662f\u6570\u636e\u5c11\u4e22\u5931\u3002\u4e3b\u4ece\u5e93\u6a21\u5f0f\u548c\u54e8\u5175\u4fdd\u8bc1\u4e86\u670d\u52a1\u5c11\u4e2d\u65ad\uff0cAOF \u65e5\u5fd7\u548c RDB \u5feb\u7167\u4fdd\u8bc1\u4e86\u6570\u636e\u5c11\u4e22\u5931\u3002<\/p>\n<p>\u5e76\u4e14\u6211\u4eec\u5b66\u4e60\u4e86\u54e8\u5175\u4e09\u4e2a\u804c\u8d23\uff0c\u5206\u522b\u662f\uff1a\u76d1\u63a7\u3001\u9009\u4e3b\uff08\u9009\u62e9\u4e3b\u5e93\uff09\u548c\u901a\u77e5\u3002\u4eca\u5929\u6211\u4eec\u5c31\u6765\u8be6\u7ec6\u5b66\u4e60\u4e00\u4e0b\u3002<\/p>\n<p>\u9996\u5148\u5450\uff0c\u5728\u54e8\u5175\u542f\u52a8\u524d\uff0c\u6211\u4eec\u8981\u5bf9\u54e8\u5175\u8fdb\u884c\u914d\u7f6e\u3002Redis \u6e90\u7801\u4e2d\u5305\u542b\u4e86\u4e00\u4e2a\u540d\u4e3a sentinel.conf [2] \u7684\u6587\u4ef6\uff0c\u8be5\u6587\u4ef6\u4e2d\u90e8\u5206\u914d\u7f6e\u5982\u4e0b\uff1a<\/p>\n<pre><code>sentinel monitor mymaster 127.0.0.1 6379 2\nsentinel down-after-milliseconds mymaster 60000<\/code><\/pre>\n<p>\u7b2c\u4e00\u884c\u914d\u7f6e\u6307\u793a Sentinel \u53bb\u76d1\u89c6\u4e00\u4e2a\u540d\u4e3a mymaster \u7684\u4e3b\u670d\u52a1\u5668\uff0c \u8fd9\u4e2a\u4e3b\u670d\u52a1\u5668\u7684 IP \u5730\u5740\u4e3a 127.0.0.1 \uff0c \u7aef\u53e3\u53f7\u4e3a 6379 \uff0c \u800c\u5c06\u8fd9\u4e2a\u4e3b\u670d\u52a1\u5668\u5224\u65ad\u4e3a\u5931\u6548\u81f3\u5c11\u9700\u8981 2 \u4e2a Sentinel \u540c\u610f \u3002<\/p>\n<p>\u53ef\u4ee5\u770b\u5230\uff0c\u6211\u4eec\u4ec5\u4ec5\u8bbe\u7f6e\u4e86\u4e3b\u5e93\u7684 IP \u548c\u7aef\u53e3\u3002\u5e76\u6ca1\u6709\u914d\u7f6e\u5176\u4ed6\u54e8\u5175\u7684\u8fde\u63a5\u4fe1\u606f\u554a\uff0c\u8fd9\u4e9b\u54e8\u5175\u5b9e\u4f8b\u65e2\u7136\u90fd\u4e0d\u77e5\u9053\u5f7c\u6b64\u7684\u5730\u5740\uff0c\u53c8\u662f\u600e\u4e48\u7ec4\u6210\u96c6\u7fa4\u7684\u5462\uff1f<\/p>\n<p>\u54e8\u5175\u5b9e\u4f8b\u4e4b\u95f4\u53ef\u4ee5\u76f8\u4e92\u53d1\u73b0\uff0c\u8981\u5f52\u529f\u4e8e Redis \u63d0\u4f9b\u7684 pub\/sub \u673a\u5236\uff0c\u4e5f\u5c31\u662f\u53d1\u5e03 \/ \u8ba2\u9605\u673a\u5236\u3002\u5728\u4e3b\u4ece\u96c6\u7fa4\u4e2d\uff0c\u4e3b\u5e93\u4e0a\u6709\u4e00\u4e2a\u540d\u4e3a<code>__sentinel__:hello<\/code>\u7684\u9891\u9053\uff0c\u4e0d\u540c\u54e8\u5175\u5c31\u662f\u901a\u8fc7\u5b83\u6765\u76f8\u4e92\u53d1\u73b0\uff0c\u5b9e\u73b0\u4e92\u76f8\u901a\u4fe1\u7684\u3002<\/p>\n<h3>\u4e00\u3001\u54e8\u5175\u96c6\u7fa4\u7684\u7ec4\u6210<\/h3>\n<p>\u6bcf\u96942\u79d2\uff0c \u6bcf\u4e2a Sentinel \u8282\u70b9\u5c31\u4f1a\u5411 Redis \u6570\u636e\u8282\u70b9\u7684<code>__sentinel__:hello<\/code>\u9891\u9053\u4e0a\u53d1\u9001\u8be5 Sentinel \u8282\u70b9\u5bf9\u4e8e\u4e3b\u8282\u70b9\u7684\u5224\u65ad\u4ee5\u53ca\u5f53\u524d Sentinel \u8282\u70b9\u7684\u4fe1\u606f\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043117427\" alt=\"\u54e8\u5175\u95f4\u7684\u901a\u4fe1\" title=\"\u54e8\u5175\u95f4\u7684\u901a\u4fe1\" loading=\"lazy\"><\/p>\n<p>\u4e3e\u4e2a\u4f8b\u5b50\u3002\u5728\u4e0a\u56fe\u4e2d\uff0c\u54e8\u5175 1 \u628a\u81ea\u5df1\u7684 IP\uff08172.16.19.3\uff09\u548c\u7aef\u53e3\uff0826579\uff09\u53d1\u5e03\u5230<code>__sentinel__:hello<\/code>\u9891\u9053\u4e0a\uff0c\u54e8\u5175 2 \u548c 3 \u8ba2\u9605\u4e86\u8be5\u9891\u9053\u3002\u90a3\u4e48\u6b64\u65f6\uff0c\u54e8\u5175 2 \u548c 3 \u5c31\u53ef\u4ee5\u4ece\u8fd9\u4e2a\u9891\u9053\u76f4\u63a5\u83b7\u53d6\u54e8\u5175 1 \u7684 IP \u5730\u5740\u548c\u7aef\u53e3\u53f7\u3002<\/p>\n<p>\u7136\u540e\uff0c\u54e8\u5175 2\u30013 \u53ef\u4ee5\u548c\u54e8\u5175 1 \u5efa\u7acb\u7f51\u7edc\u8fde\u63a5\u3002\u901a\u8fc7\u8fd9\u4e2a\u65b9\u5f0f\uff0c\u54e8\u5175 2 \u548c 3 \u4e5f\u53ef\u4ee5\u5efa\u7acb\u7f51\u7edc\u8fde\u63a5\uff0c\u8fd9\u6837\u4e00\u6765\uff0c\u54e8\u5175\u96c6\u7fa4\u5c31\u5f62\u6210\u4e86\u3002\u5b83\u4eec\u76f8\u4e92\u95f4\u53ef\u4ee5\u901a\u8fc7\u7f51\u7edc\u8fde\u63a5\u8fdb\u884c\u901a\u4fe1\uff0c\u6bd4\u5982\u8bf4\u5bf9\u4e3b\u5e93\u6709\u6ca1\u6709\u4e0b\u7ebf\u8fd9\u4ef6\u4e8b\u513f\u8fdb\u884c\u5224\u65ad\u548c\u534f\u5546\u3002<\/p>\n<p>\u54e8\u5175\u9664\u4e86\u5f7c\u6b64\u4e4b\u95f4\u5efa\u7acb\u8d77\u8fde\u63a5\u5f62\u6210\u96c6\u7fa4\u5916\uff0c\u8fd8\u9700\u8981\u548c\u4ece\u5e93\u5efa\u7acb\u8fde\u63a5\u3002\u8fd9\u662f\u56e0\u4e3a\uff0c\u5728\u54e8\u5175\u7684\u76d1\u63a7\u4efb\u52a1\u4e2d\uff0c\u5b83\u9700\u8981\u5bf9\u4e3b\u4ece\u5e93\u90fd\u8fdb\u884c\u5fc3\u8df3\u5224\u65ad\uff0c\u800c\u4e14\u5728\u4e3b\u4ece\u5e93\u5207\u6362\u5b8c\u6210\u540e\uff0c\u5b83\u8fd8\u9700\u8981\u901a\u77e5\u4ece\u5e93\uff0c\u8ba9\u5b83\u4eec\u548c\u65b0\u4e3b\u5e93\u8fdb\u884c\u540c\u6b65\u3002<\/p>\n<p>\u90a3\u4e48\uff0c\u54e8\u5175\u53c8\u662f\u5982\u4f55\u77e5\u9053\u4ece\u5e93\u7684 IP \u5730\u5740\u548c\u7aef\u53e3\u7684\u5462\uff1f<\/p>\n<h3>\u4e8c\u3001\u83b7\u53d6\u4ece\u8282\u70b9\u4fe1\u606f<\/h3>\n<p>\u8fd9\u662f\u7531\u54e8\u5175\u5411\u4e3b\u5e93\u53d1\u9001 INFO \u547d\u4ee4\u6765\u5b8c\u6210\u7684\u3002\u5c31\u50cf\u4e0b\u56fe\u6240\u793a\uff0c\u54e8\u5175 2 \u7ed9\u4e3b\u5e93\u53d1\u9001 INFO \u547d\u4ee4\uff0c\u4e3b\u5e93\u63a5\u53d7\u5230\u8fd9\u4e2a\u547d\u4ee4\u540e\uff0c\u5c31\u4f1a\u628a\u4ece\u5e93\u5217\u8868\u8fd4\u56de\u7ed9\u54e8\u5175\u3002\u63a5\u7740\uff0c\u54e8\u5175\u5c31\u53ef\u4ee5\u6839\u636e\u4ece\u5e93\u5217\u8868\u4e2d\u7684\u8fde\u63a5\u4fe1\u606f\uff0c\u548c\u6bcf\u4e2a\u4ece\u5e93\u5efa\u7acb\u8fde\u63a5\u3002\u54e8\u5175 1 \u548c 3 \u4e5f\u53ef\u4ee5\u901a\u8fc7\u76f8\u540c\u7684\u65b9\u6cd5\u548c\u4ece\u5e93\u5efa\u7acb\u8fde\u63a5\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043117428\" alt=\"\u83b7\u53d6\u4ece\u8282\u70b9\u4fe1\u606f\" title=\"\u83b7\u53d6\u4ece\u8282\u70b9\u4fe1\u606f\" loading=\"lazy\"><\/p>\n<p>\u4e0b\u9762\u662f\u5728\u4e00\u4e2a\u4e3b\u8282\u70b9\u4e0a\u6267\u884c info \u547d\u4ee4\u7684\u7ed3\u679c\u7247\u6bb5\uff1a<\/p>\n<pre><code># Replication\nrole:master\nconnected_slaves:2\nslave0:ip=127.0.0.1,port=6380,state=online,offset=4917,lag=1\nslave1:ip=127.0.0.1,port=6381,state=online,offset=4917,lag=1<\/code><\/pre>\n<p>\u4e4b\u540e\uff0c\u54e8\u5175\u4f1a\u5728\u8fd9\u4e2a\u8fde\u63a5\u4e0a\u6301\u7eed\u5730\u5bf9\u4ece\u5e93\u8fdb\u884c\u76d1\u63a7\u3002\u6bcf\u969410\u79d2\uff0c \u54e8\u5175\u8282\u70b9\u5c31\u4f1a\u5411\u4e3b\u8282\u70b9\u548c\u4ece\u8282\u70b9\u53d1\u9001 info \u547d\u4ee4\uff0c\u83b7\u53d6\u96c6\u7fa4\u6700\u65b0\u7684\u62d3\u6251\u7ed3\u6784\u3002\u8fd9\u6837\uff0c\u5f53\u6709\u65b0\u7684\u4ece\u8282\u70b9\u52a0\u5165\u65f6\u5c31\u53ef\u4ee5\u7acb\u523b\u611f\u77e5\u51fa\u6765\u3002\u8282\u70b9\u4e0d\u53ef\u8fbe\u6216\u8005\u9009\u5b9a\u65b0\u4e3b\u5e93\u540e\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7 info \u547d\u4ee4\u5b9e\u65f6\u66f4\u65b0\u8282\u70b9\u62d3\u6251\u4fe1\u606f\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043117429\" alt=\"\u6267\u884cinfo\u547d\u4ee4\" title=\"\u6267\u884cinfo\u547d\u4ee4\" loading=\"lazy\"><\/p>\n<p>\u6709\u4e86\u96c6\u7fa4\u7684\u4fe1\u606f\uff0c\u54e8\u5175\u7ec8\u4e8e\u53ef\u4ee5\u5f00\u59cb\u5b83\u7684\u5de5\u4f5c\u4e86\u3002\u7b2c\u4e00\u9879\u804c\u8d23\uff1a\u5224\u65ad\u4e3b\u4ece\u5e93\u662f\u5426\u4e0b\u7ebf\u3002<\/p>\n<h3>\u4e09\u3001\u5982\u4f55\u5224\u65ad\u4e3b\u4ece\u5e93\u4e0b\u7ebf\uff1f<\/h3>\n<h4>3.1 \u5b9a\u65f6\u6267\u884c ping \u547d\u4ee4<\/h4>\n<p>\u54e8\u5175\u8fdb\u7a0b\u5728\u8fd0\u884c\u65f6\uff0c\u6bcf\u96941\u79d2\uff0c\u4f1a\u5411\u4e3b\u8282\u70b9\u3001 \u4ece\u8282\u70b9\u3001 \u5176\u4f59 Sentinel \u8282\u70b9\u53d1\u9001\u4e00\u6761 ping \u547d\u4ee4\uff0c\u68c0\u6d4b\u5b83\u4eec\u662f\u5426\u4ecd\u7136\u5728\u7ebf\u8fd0\u884c\u3002\u5982\u679c\u4e3b\u3001\u4ece\u5e93\u6ca1\u6709\u5728\u89c4\u5b9a\u65f6\u95f4\u5185\u54cd\u5e94\u54e8\u5175\u7684 ping \u547d\u4ee4\uff0c\u54e8\u5175\u5c31\u4f1a\u628a\u5b83\u6807\u8bb0\u4e3a\u300c\u4e0b\u7ebf\u72b6\u6001\u300d\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043117430\" alt=\"\u6267\u884cping\u547d\u4ee4\" title=\"\u6267\u884cping\u547d\u4ee4\" loading=\"lazy\"><\/p>\n<p>\u5982\u679c\u68c0\u6d4b\u7684\u662f\u4e3b\u5e93\uff0c\u90a3\u4e48\uff0c\u54e8\u5175\u8fd8\u4e0d\u80fd\u7b80\u5355\u5730\u5f00\u542f\u4e3b\u4ece\u5207\u6362\u3002\u56e0\u4e3a\u5f88\u6709\u53ef\u80fd\u5b58\u5728\u8fd9\u4e48\u4e00\u4e2a\u60c5\u51b5\uff1a\u90a3\u5c31\u662f\u54e8\u5175\u8bef\u5224\u4e86\uff0c\u5176\u5b9e\u4e3b\u5e93\u5e76\u6ca1\u6709\u6545\u969c\u3002<\/p>\n<p>\u8bef\u5224\u4e00\u822c\u4f1a\u53d1\u751f\u5728\u96c6\u7fa4\u7f51\u7edc\u538b\u529b\u8f83\u5927\u3001\u7f51\u7edc\u62e5\u585e\uff0c\u6216\u8005\u662f\u4e3b\u5e93\u672c\u8eab\u538b\u529b\u8f83\u5927\u7684\u60c5\u51b5\u4e0b\u3002\u4e00\u65e6\u54e8\u5175\u8bef\u5224\uff0c\u542f\u52a8\u4e86\u4e3b\u4ece\u5207\u6362\uff0c\u540e\u7eed\u7684\u9009\u4e3b\u548c\u901a\u77e5\u64cd\u4f5c\u90fd\u4f1a\u5e26\u6765\u989d\u5916\u7684\u8ba1\u7b97\u548c\u901a\u4fe1\u5f00\u9500\u3002<\/p>\n<p>\u90a3\u600e\u4e48\u51cf\u5c11\u8bef\u5224\u5462\uff1f<\/p>\n<h4>3.2 \u4e3b\u89c2\u4e0b\u7ebf\u548c\u5ba2\u89c2\u4e0b\u7ebf<\/h4>\n<p>\u54e8\u5175\u673a\u5236\u901a\u5e38\u4f1a\u91c7\u7528\u591a\u5b9e\u4f8b\u7ec4\u6210\u7684\u96c6\u7fa4\u6a21\u5f0f\u8fdb\u884c\u90e8\u7f72\uff0c\u8fd9\u4e5f\u88ab\u79f0\u4e3a\u54e8\u5175\u96c6\u7fa4\u3002\u5f15\u5165\u591a\u4e2a\u54e8\u5175\u5b9e\u4f8b\u4e00\u8d77\u6765\u5224\u65ad\uff0c\u5c31\u53ef\u4ee5\u907f\u514d\u5355\u4e2a\u54e8\u5175\u56e0\u4e3a\u81ea\u8eab\u7f51\u7edc\u72b6\u51b5\u4e0d\u597d\uff0c\u800c\u8bef\u5224\u4e3b\u5e93\u4e0b\u7ebf\u7684\u60c5\u51b5\u3002\u540c\u65f6\uff0c\u591a\u4e2a\u54e8\u5175\u7684\u7f51\u7edc\u540c\u65f6\u4e0d\u7a33\u5b9a\u7684\u6982\u7387\u8f83\u5c0f\uff0c\u7531\u5b83\u4eec\u4e00\u8d77\u505a\u51b3\u7b56\uff0c\u8bef\u5224\u7387\u4e5f\u80fd\u964d\u4f4e\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043117431\" alt=\"\u4e3b\u89c2\u4e0b\u7ebf\u548c\u5ba2\u89c2\u4e0b\u7ebf\" title=\"\u4e3b\u89c2\u4e0b\u7ebf\u548c\u5ba2\u89c2\u4e0b\u7ebf\" loading=\"lazy\"><\/p>\n<p>\u8fd8\u8bb0\u5f97\u6211\u5728\u6587\u7ae0\u5f00\u5934\u7ed9\u51fa\u7684 sentinel.conf \u914d\u7f6e\u5417\uff1f<\/p>\n<pre><code>sentinel monitor mymaster 127.0.0.1 6379 2\nsentinel down-after-milliseconds mymaster 60000<\/code><\/pre>\n<p><code>down-after-milliseconds<\/code>\u9009\u9879\u5c31\u662f Sentinel \u8ba4\u4e3a\u670d\u52a1\u5668\u5df2\u7ecf\u65ad\u7ebf\u7684\u4e34\u754c\u9608\u503c\u3002<\/p>\n<p>\u5982\u679c\u670d\u52a1\u5668\u5728\u8be5\u6beb\u79d2\u6570\u4e4b\u5185\uff0c \u6ca1\u6709\u8fd4\u56de Sentinel \u53d1\u9001\u7684 ping \u547d\u4ee4\u7684\u56de\u590d\uff0c \u6216\u8005\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\uff0c \u90a3\u4e48 Sentinel \u5c06\u8fd9\u4e2a\u670d\u52a1\u5668\u6807\u8bb0\u4e3a\u4e3b\u89c2\u4e0b\u7ebf\uff08subjectively down\uff0c\u7b80\u79f0 SDOWN \uff09\u3002<\/p>\n<p>\u5982\u679c\u6ca1\u6709\u8db3\u591f\u6570\u91cf\u7684 Sentinel \u540c\u610f\u4e3b\u5e93\u5df2\u7ecf\u4e0b\u7ebf\uff0c \u5f53\u4e3b\u5e93\u91cd\u65b0\u5411 Sentinel \u7684 PING \u547d\u4ee4\u8fd4\u56de\u6709\u6548\u56de\u590d\u65f6\uff0c \u4e3b\u5e93\u7684\u4e3b\u89c2\u4e0b\u7ebf\u72b6\u6001\u5c31\u4f1a\u88ab\u79fb\u9664\u3002\u800c\u5982\u679c\u8d85\u51fa 2 \u4e2a Sentinel \u90fd\u5c06\u4e3b\u5e93\u6807\u8bb0\u4e3a\u4e3b\u89c2\u4e0b\u7ebf\u4e4b\u540e\uff0c \u4e3b\u5e93\u624d\u4f1a\u88ab\u6807\u8bb0\u4e3a\u5ba2\u89c2\u4e0b\u7ebf\uff08objectively down\uff0c \u7b80\u79f0 ODOWN \uff09\u3002\u54e8\u5175\u5c31\u8981\u5f00\u59cb\u4e0b\u4e00\u4e2a\u51b3\u7b56\u8fc7\u7a0b\u4e86\uff0c\u5373\u4ece\u8bb8\u591a\u4ece\u5e93\u4e2d\uff0c\u9009\u51fa\u4e00\u4e2a\u4ece\u5e93\u6765\u505a\u65b0\u4e3b\u5e93\u3002<\/p>\n<h3>\u56db\u3001\u5982\u4f55\u9009\u5b9a\u65b0\u4e3b\u5e93\uff1f<\/h3>\n<h4>4.1 \u521d\u6b65\u7b5b\u9009<\/h4>\n<p>\u8bbe\u60f3\u4e00\u4e0b\uff0c\u5982\u679c\u5728\u9009\u4e3b\u65f6\uff0c\u4e00\u4e2a\u4ece\u5e93\u6b63\u5e38\u8fd0\u884c\uff0c\u6211\u4eec\u628a\u5b83\u9009\u4e3a\u65b0\u4e3b\u5e93\u5f00\u59cb\u4f7f\u7528\u4e86\u3002\u53ef\u662f\uff0c\u5f88\u5feb\u5b83\u7684\u7f51\u7edc\u51fa\u4e86\u6545\u969c\uff0c\u6b64\u65f6\uff0c\u6211\u4eec\u5c31\u53c8\u5f97\u91cd\u65b0\u9009\u4e3b\u4e86\u3002\u8fd9\u663e\u7136\u4e0d\u662f\u6211\u4eec\u671f\u671b\u7684\u7ed3\u679c\u3002\u6240\u4ee5\uff0c\u5728\u9009\u4e3b\u65f6\uff0c\u9664\u4e86\u8981\u68c0\u67e5\u4ece\u5e93\u7684\u5f53\u524d\u5728\u7ebf\u72b6\u6001\uff0c\u8fd8\u8981\u5224\u65ad\u5b83\u4e4b\u524d\u7684\u7f51\u7edc\u8fde\u63a5\u72b6\u6001\u3002\u5982\u679c\u4ece\u5e93\u603b\u662f\u548c\u4e3b\u5e93\u65ad\u8fde\uff0c\u800c\u4e14\u65ad\u8fde\u6b21\u6570\u8d85\u51fa\u4e86\u4e00\u5b9a\u7684\u9608\u503c\uff0c\u6211\u4eec\u5c31\u6709\u7406\u7531\u76f8\u4fe1\uff0c\u8fd9\u4e2a\u4ece\u5e93\u7684\u7f51\u7edc\u72b6\u51b5\u5e76\u4e0d\u662f\u592a\u597d\uff0c\u5c31\u53ef\u4ee5\u628a\u8fd9\u4e2a\u4ece\u5e93\u7b5b\u6389\u4e86\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043117432\" alt=\"\u521d\u6b65\u7b5b\u9009\" title=\"\u521d\u6b65\u7b5b\u9009\" loading=\"lazy\"><\/p>\n<p>\u5177\u4f53\u600e\u4e48\u5224\u65ad\u5462\uff1f\u4f60\u4f7f\u7528\u914d\u7f6e\u9879 down-after-milliseconds * 10\u3002\u5176\u4e2d\uff0cdown-after-milliseconds \u662f\u6211\u4eec\u8ba4\u5b9a\u4e3b\u4ece\u5e93\u65ad\u8fde\u7684\u6700\u5927\u8fde\u63a5\u8d85\u65f6\u65f6\u95f4\u3002\u5982\u679c\u5728 down-after-milliseconds \u6beb\u79d2\u5185\uff0c\u4e3b\u4ece\u8282\u70b9\u90fd\u6ca1\u6709\u901a\u8fc7\u7f51\u7edc\u8054\u7cfb\u4e0a\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u8ba4\u4e3a\u4e3b\u4ece\u8282\u70b9\u65ad\u8fde\u4e86\u3002\u5982\u679c\u53d1\u751f\u65ad\u8fde\u7684\u6b21\u6570\u8d85\u8fc7\u4e86 10 \u6b21\uff0c\u5c31\u8bf4\u660e\u8fd9\u4e2a\u4ece\u5e93\u7684\u7f51\u7edc\u72b6\u51b5\u4e0d\u597d\uff0c\u4e0d\u9002\u5408\u4f5c\u4e3a\u65b0\u4e3b\u5e93\u3002<\/p>\n<p>\u8fd9\u6837\u6211\u4eec\u5c31\u8fc7\u6ee4\u6389\u4e86\u4e0d\u9002\u5408\u505a\u4e3b\u5e93\u7684\u4ece\u5e93\uff0c\u5b8c\u6210\u4e86\u7b5b\u9009\u5de5\u4f5c\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\u5c31\u8981\u7ed9\u5269\u4f59\u7684\u4ece\u5e93\u6253\u5206\u4e86\u3002\u6211\u4eec\u53ef\u4ee5\u5206\u522b\u6309\u7167\u4e09\u4e2a\u89c4\u5219\u4f9d\u6b21\u8fdb\u884c\u4e09\u8f6e\u6253\u5206\uff0c\u8fd9\u4e09\u4e2a\u89c4\u5219\u5206\u522b\u662f\u4ece\u5e93\u4f18\u5148\u7ea7\u3001\u4ece\u5e93\u590d\u5236\u8fdb\u5ea6\u4ee5\u53ca\u4ece\u5e93 ID \u53f7\u3002<\/p>\n<h4>4.2 \u4e09\u8f6e\u6253\u5206<\/h4>\n<p>\u7b2c\u4e00\u8f6e\uff1a\u4f18\u5148\u7ea7\u6700\u9ad8\u7684\u4ece\u5e93\u5f97\u5206\u9ad8\u3002<\/p>\n<p>\u7528\u6237\u53ef\u4ee5\u901a\u8fc7 slave-priority \u914d\u7f6e\u9879\uff0c\u7ed9\u4e0d\u540c\u7684\u4ece\u5e93\u8bbe\u7f6e\u4e0d\u540c\u4f18\u5148\u7ea7\u3002\u6bd4\u5982\uff0c\u4f60\u6709\u4e24\u4e2a\u4ece\u5e93\uff0c\u5b83\u4eec\u7684\u5185\u5b58\u5927\u5c0f\u4e0d\u4e00\u6837\uff0c\u4f60\u53ef\u4ee5\u624b\u52a8\u7ed9\u5185\u5b58\u5927\u7684\u5b9e\u4f8b\u8bbe\u7f6e\u4e00\u4e2a\u9ad8\u4f18\u5148\u7ea7\u3002<\/p>\n<p>\u7b2c\u4e8c\u8f6e\uff1a\u548c\u65e7\u4e3b\u5e93\u540c\u6b65\u7a0b\u5ea6\u6700\u63a5\u8fd1\u7684\u4ece\u5e93\u5f97\u5206\u9ad8\u3002<\/p>\n<p>\u8fd9\u4e2a\u89c4\u5219\u7684\u4f9d\u636e\u662f\uff0c\u5982\u679c\u9009\u62e9\u548c\u65e7\u4e3b\u5e93\u540c\u6b65\u6700\u63a5\u8fd1\u7684\u90a3\u4e2a\u4ece\u5e93\u4f5c\u4e3a\u4e3b\u5e93\uff0c\u90a3\u4e48\uff0c\u8fd9\u4e2a\u65b0\u4e3b\u5e93\u4e0a\u5c31\u6709\u6700\u65b0\u7684\u6570\u636e\u3002<\/p>\n<p>\u5982\u4f55\u5224\u65ad\u4ece\u5e93\u548c\u65e7\u4e3b\u5e93\u95f4\u7684\u540c\u6b65\u8fdb\u5ea6\u5462\uff1f<\/p>\n<p>\u4e3b\u4ece\u5e93\u540c\u6b65\u65f6\u6709\u4e2a\u547d\u4ee4\u4f20\u64ad\u7684\u8fc7\u7a0b\u3002\u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\uff0c\u4e3b\u5e93\u4f1a\u7528 master_repl_offset \u8bb0\u5f55\u5f53\u524d\u7684\u6700\u65b0\u5199\u64cd\u4f5c\u5728 repl_backlog_buffer \u4e2d\u7684\u4f4d\u7f6e\uff0c\u800c\u4ece\u5e93\u4f1a\u7528 slave_repl_offset \u8fd9\u4e2a\u503c\u8bb0\u5f55\u5f53\u524d\u7684\u590d\u5236\u8fdb\u5ea6\u3002<\/p>\n<p>\u4e3b\u4ece\u5e93\u540c\u6b65\u65f6\u6709\u4e2a\u547d\u4ee4\u4f20\u64ad\u7684\u8fc7\u7a0b\u3002\u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\uff0c\u4e3b\u5e93\u4f1a\u7528 master_repl_offset \u8bb0\u5f55\u5f53\u524d\u7684\u6700\u65b0\u5199\u64cd\u4f5c\u5728 repl_backlog_buffer \u4e2d\u7684\u4f4d\u7f6e\uff0c\u800c\u4ece\u5e93\u4f1a\u7528 slave_repl_offset \u8fd9\u4e2a\u503c\u8bb0\u5f55\u5f53\u524d\u7684\u590d\u5236\u8fdb\u5ea6\u3002<\/p>\n<p>\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u4ece\u5e93 2 \u5c31\u5e94\u8be5\u88ab\u9009\u4e3a\u65b0\u4e3b\u5e93\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043117433\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u7b2c\u4e09\u8f6e\uff1aID \u53f7\u5c0f\u7684\u4ece\u5e93\u5f97\u5206\u9ad8\u3002<\/p>\n<p>\u6bcf\u4e2a\u5b9e\u4f8b\u90fd\u4f1a\u6709\u4e00\u4e2a ID\uff0c\u8fd9\u4e2a ID \u5c31\u7c7b\u4f3c\u4e8e\u8fd9\u91cc\u7684\u4ece\u5e93\u7684\u7f16\u53f7\u3002\u76ee\u524d\uff0cRedis \u5728\u9009\u4e3b\u5e93\u65f6\uff0c\u6709\u4e00\u4e2a\u9ed8\u8ba4\u7684\u89c4\u5b9a\uff1a\u5728\u4f18\u5148\u7ea7\u548c\u590d\u5236\u8fdb\u5ea6\u90fd\u76f8\u540c\u7684\u60c5\u51b5\u4e0b\uff0cID \u53f7\u6700\u5c0f\u7684\u4ece\u5e93\u5f97\u5206\u6700\u9ad8\uff0c\u4f1a\u88ab\u9009\u4e3a\u65b0\u4e3b\u5e93\u3002<\/p>\n<p>\u5230\u8fd9\u91cc\uff0c\u65b0\u4e3b\u5e93\u5c31\u88ab\u9009\u51fa\u6765\u4e86\uff0c\u63a5\u4e0b\u6765\u5c31\u662f\u5c06\u4ece\u5e93\u5347\u7ea7\u4e3a\u4e3b\u5e93\u3002\u4f46\u662f\u95ee\u9898\u53c8\u6765\u4e86\uff0c\u8fd9\u4e48\u591a\u54e8\u5175\uff0c\u8be5\u7531\u8c01\u6765\u6267\u884c\u4e3b\u4ece\u5207\u6362\u64cd\u4f5c\u5462\uff1f<\/p>\n<h4>4.3 \u7531\u54ea\u4e2a\u54e8\u5175\u6267\u884c\u4e3b\u4ece\u5207\u6362\uff1f<\/h4>\n<p>\u4efb\u4f55\u4e00\u4e2a\u54e8\u5175\u5b9e\u4f8b\u53ea\u8981\u81ea\u8eab\u5224\u65ad\u4e3b\u5e93\u201c\u4e3b\u89c2\u4e0b\u7ebf\u201d\u540e\uff0c\u5c31\u4f1a\u5411\u5176\u4ed6 Sentinel \u53d1\u9001 SENTINEL is-master-down-by-addr \u547d\u4ee4\u6765\u8be2\u95ee\u5bf9\u65b9\u662f\u5426\u8ba4\u4e3a\u4e3b\u5e93\u5df2\u4e0b\u7ebf\u3002\u63a5\u7740\uff0c\u5176\u4ed6\u54e8\u5175\u5b9e\u4f8b\u4f1a\u6839\u636e\u81ea\u5df1\u548c\u4e3b\u5e93\u7684\u8fde\u63a5\u60c5\u51b5\uff0c\u505a\u51fa Y \u6216 N \u7684\u54cd\u5e94\uff0cY \u76f8\u5f53\u4e8e\u8d5e\u6210\u7968\uff0cN \u76f8\u5f53\u4e8e\u53cd\u5bf9\u7968\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043117434\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u6b64\u65f6\uff0c\u8fd9\u4e2a\u54e8\u5175\u5c31\u53ef\u4ee5\u518d\u7ed9\u5176\u4ed6\u54e8\u5175\u53d1\u9001\u547d\u4ee4\uff0c\u8868\u660e\u5e0c\u671b\u7531\u81ea\u5df1\u6765\u6267\u884c\u4e3b\u4ece\u5207\u6362\uff0c\u5e76\u8ba9\u6240\u6709\u5176\u4ed6\u54e8\u5175\u8fdb\u884c\u6295\u7968\u3002\u8fd9\u4e2a\u6295\u7968\u8fc7\u7a0b\u79f0\u4e3a\u201cLeader \u9009\u4e3e\u201d\u3002\u9009\u4e3e\u51fa\u6765\u7684 Leader \u5c31\u662f\u6700\u7ec8\u6267\u884c\u4e3b\u4ece\u5207\u6362\u7684\u54e8\u5175\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u73b0\u5728\u6709 3 \u4e2a\u54e8\u5175\uff0cquorum \u914d\u7f6e\u7684\u662f 2\uff0c\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u9009\u4e3e\u7684\u8fc7\u7a0b\u662f\u4ec0\u4e48\u6837\u7684\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043117435\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u5728 T1 \u65f6\u523b\uff0cS1 \u5224\u65ad\u4e3b\u5e93\u4e3a\u201c\u5ba2\u89c2\u4e0b\u7ebf\u201d\uff0c\u5b83\u60f3\u6210\u4e3a Leader\uff0c\u5c31\u5148\u7ed9\u81ea\u5df1\u6295\u4e00\u5f20\u8d5e\u6210\u7968\uff0c\u7136\u540e\u5206\u522b\u5411 S2 \u548c S3 \u53d1\u9001\u547d\u4ee4\uff0c\u8868\u793a\u8981\u6210\u4e3a Leader\u3002<\/p>\n<p>\u5728 T2 \u65f6\u523b\uff0cS3 \u5224\u65ad\u4e3b\u5e93\u4e3a\u201c\u5ba2\u89c2\u4e0b\u7ebf\u201d\uff0c\u5b83\u4e5f\u60f3\u6210\u4e3a Leader\uff0c\u6240\u4ee5\u4e5f\u5148\u7ed9\u81ea\u5df1\u6295\u4e00\u5f20\u8d5e\u6210\u7968\uff0c\u518d\u5206\u522b\u5411 S1 \u548c S2 \u53d1\u9001\u547d\u4ee4\uff0c\u8868\u793a\u8981\u6210\u4e3a Leader\u3002<\/p>\n<p>\u5728 T3 \u65f6\u523b\uff0cS1 \u6536\u5230\u4e86 S3 \u7684 Leader \u6295\u7968\u8bf7\u6c42\u3002\u56e0\u4e3a S1 \u5df2\u7ecf\u7ed9\u81ea\u5df1\u6295\u4e86\u4e00\u7968 Y\uff0c\u6240\u4ee5\u5b83\u4e0d\u80fd\u518d\u7ed9\u5176\u4ed6\u54e8\u5175\u6295\u8d5e\u6210\u7968\u4e86\uff0c\u6240\u4ee5 S1 \u56de\u590d N \u8868\u793a\u4e0d\u540c\u610f\u3002\u540c\u65f6\uff0cS2 \u6536\u5230\u4e86 T2 \u65f6 S3 \u53d1\u9001\u7684 Leader \u6295\u7968\u8bf7\u6c42\u3002\u56e0\u4e3a S2 \u4e4b\u524d\u6ca1\u6709\u6295\u8fc7\u7968\uff0c\u5b83\u4f1a\u7ed9\u7b2c\u4e00\u4e2a\u5411\u5b83\u53d1\u9001\u6295\u7968\u8bf7\u6c42\u7684\u54e8\u5175\u56de\u590d Y\uff0c\u7ed9\u540e\u7eed\u518d\u53d1\u9001\u6295\u7968\u8bf7\u6c42\u7684\u54e8\u5175\u56de\u590d N\uff0c\u6240\u4ee5\uff0c\u5728 T3 \u65f6\uff0cS2 \u56de\u590d S3\uff0c\u540c\u610f S3\u6210\u4e3a Leader\u3002<\/p>\n<p>\u5728 T4 \u65f6\u523b\uff0cS2 \u624d\u6536\u5230 T1 \u65f6 S1 \u53d1\u9001\u7684\u6295\u7968\u547d\u4ee4\u3002\u56e0\u4e3a S2 \u5df2\u7ecf\u5728 T3 \u65f6\u540c\u610f\u4e86 S3 \u7684\u6295\u7968\u8bf7\u6c42\uff0c\u6b64\u65f6\uff0cS2 \u7ed9 S1 \u56de\u590d N\uff0c\u8868\u793a\u4e0d\u540c\u610f S1 \u6210\u4e3a Leader\u3002\u53d1\u751f\u8fd9\u79cd\u60c5\u51b5\uff0c\u662f\u56e0\u4e3a S3 \u548c S2 \u4e4b\u95f4\u7684\u7f51\u7edc\u4f20\u8f93\u6b63\u5e38\uff0c\u800c S1 \u548c S2 \u4e4b\u95f4\u7684\u7f51\u7edc\u4f20\u8f93\u53ef\u80fd\u6b63\u597d\u62e5\u585e\u4e86\uff0c\u5bfc\u81f4\u6295\u7968\u8bf7\u6c42\u4f20\u8f93\u6162\u4e86\u3002<\/p>\n<p>\u5728 T5 \u65f6\u523b\uff0cS1 \u5f97\u5230\u7684\u7968\u6570\u662f\u6765\u81ea\u5b83\u81ea\u5df1\u7684\u4e00\u7968 Y \u548c\u6765\u81ea S2 \u7684\u4e00\u7968 N\u3002\u800c S3 \u9664\u4e86\u81ea\u5df1\u7684\u8d5e\u6210\u7968 Y \u4ee5\u5916\uff0c\u8fd8\u6536\u5230\u4e86\u6765\u81ea S2 \u7684\u4e00\u7968 Y\u3002\u6b64\u65f6\uff0cS3 \u4e0d\u4ec5\u83b7\u5f97\u4e86\u534a\u6570\u4ee5\u4e0a\u7684 Leader \u8d5e\u6210\u7968\uff0c\u4e5f\u8fbe\u5230\u9884\u8bbe\u7684 quorum \u503c\uff08quorum \u4e3a 2\uff09\uff0c\u6240\u4ee5\u5b83\u6700\u7ec8\u6210\u4e3a\u4e86 Leader\u3002<\/p>\n<p>\u63a5\u7740\uff0cS3 \u4f1a\u5f00\u59cb\u6267\u884c\u9009\u4e3b\u64cd\u4f5c\uff0c\u800c\u4e14\u5728\u9009\u5b9a\u65b0\u4e3b\u5e93\u540e\uff0c\u4f1a\u7ed9\u5176\u4ed6\u4ece\u5e93\u548c\u5ba2\u6237\u7aef\u901a\u77e5\u65b0\u4e3b\u5e93\u7684\u4fe1\u606f\u3002<\/p>\n<h3>\u4e94\u3001\u5c06\u65b0\u4e3b\u5e93\u901a\u77e5\u7ed9\u4ece\u5e93\u548c\u5ba2\u6237\u7aef<\/h3>\n<p>\u901a\u8fc7\u4e0a\u6587\u7684\u5b66\u4e60\uff0c\u6211\u4eec\u77e5\u9053\u54e8\u5175\u53ef\u4ee5\u5411\u4e3b\u5e93\u53d1\u9001 INFO \u547d\u4ee4\uff0c\u6765\u83b7\u53d6\u4ece\u5e93\u7684 IP \u5730\u5740\u548c\u7aef\u53e3\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u54e8\u5175\u4e0d\u80fd\u53ea\u548c\u4e3b\u3001\u4ece\u5e93\u8fde\u63a5\u3002\u56e0\u4e3a\uff0c\u4e3b\u4ece\u5e93\u5207\u6362\u540e\uff0c\u5ba2\u6237\u7aef\u4e5f\u9700\u8981\u77e5\u9053\u65b0\u4e3b\u5e93\u7684\u8fde\u63a5\u4fe1\u606f\uff0c\u624d\u80fd\u5411\u65b0\u4e3b\u5e93\u53d1\u9001\u8bf7\u6c42\u64cd\u4f5c\u3002\u6240\u4ee5\uff0c\u54e8\u5175\u8fd8\u9700\u8981\u628a\u65b0\u4e3b\u5e93\u7684\u4fe1\u606f\u544a\u8bc9\u5ba2\u6237\u7aef\u3002<\/p>\n<p>\u90a3\u600e\u4e48\u628a\u65b0\u4e3b\u5e93\u7684\u4fe1\u606f\u544a\u8bc9\u5ba2\u6237\u7aef\u5462\uff1f<\/p>\n<h4>5.1 \u57fa\u4e8e pub\/sub \u673a\u5236\u7684\u5ba2\u6237\u7aef\u4e8b\u4ef6\u901a\u77e5<\/h4>\n<p>\u4ece\u672c\u8d28\u4e0a\u8bf4\uff0c\u54e8\u5175\u5c31\u662f\u4e00\u4e2a\u8fd0\u884c\u5728\u7279\u5b9a\u6a21\u5f0f\u4e0b\u7684 Redis \u5b9e\u4f8b\uff0c\u53ea\u4e0d\u8fc7\u5b83\u5e76\u4e0d\u670d\u52a1\u8bf7\u6c42\u64cd\u4f5c\uff0c\u53ea\u662f\u5b8c\u6210\u76d1\u63a7\u3001\u9009\u4e3b\u548c\u901a\u77e5\u7684\u4efb\u52a1\u3002\u6240\u4ee5\uff0c\u6bcf\u4e2a\u54e8\u5175\u5b9e\u4f8b\u4e5f\u63d0\u4f9b pub\/sub \u673a\u5236\uff0c\u5ba2\u6237\u7aef\u53ef\u4ee5\u4ece\u54e8\u5175\u8ba2\u9605\u6d88\u606f\u3002<\/p>\n<p>\u4e0b\u56fe\u793a\u4e2d\u662f\u4e00\u4e9b\u91cd\u8981\u7684\u9891\u9053\uff0c\u4ee5\u53ca\u6d89\u53ca\u7684\u51e0\u4e2a\u5173\u952e\u4e8b\u4ef6\u3002\u66f4\u591a\u7684\u9891\u9053\u4f60\u53ef\u4ee5\u5728\u6587\u672b\u94fe\u63a5 [3] \u4e2d\u67e5\u770b\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000043117436\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u5ba2\u6237\u7aef\u4ece\u4e3b\u5e93\u8bfb\u53d6\u54e8\u5175\u7684\u914d\u7f6e\u6587\u4ef6\u540e\uff0c\u53ef\u4ee5\u83b7\u5f97\u54e8\u5175\u7684\u5730\u5740\u548c\u7aef\u53e3\uff0c\u548c\u54e8\u5175\u5efa\u7acb\u7f51\u7edc\u8fde\u63a5\u3002<\/p>\n<p>\u5f53\u54e8\u5175\u628a\u65b0\u4e3b\u5e93\u9009\u62e9\u51fa\u6765\u540e\uff0c\u5ba2\u6237\u7aef\u5c31\u4f1a\u770b\u5230\u4e0b\u9762\u7684 switch-master \u4e8b\u4ef6\u3002\u8fd9\u4e2a\u4e8b\u4ef6\u8868\u793a\u4e3b\u5e93\u5df2\u7ecf\u5207\u6362\u4e86\uff0c\u65b0\u4e3b\u5e93\u7684 IP \u5730\u5740\u548c\u7aef\u53e3\u4fe1\u606f\u5df2\u7ecf\u6709\u4e86\u3002\u8fd9\u4e2a\u65f6\u5019\uff0c\u5ba2\u6237\u7aef\u5c31\u53ef\u4ee5\u7528\u8fd9\u91cc\u9762\u7684\u65b0\u4e3b\u5e93\u5730\u5740\u548c\u7aef\u53e3\u8fdb\u884c\u901a\u4fe1\u4e86\u3002<\/p>\n<pre><code>switch-master &lt;master name&gt; &lt;oldip&gt; &lt;oldport&gt; &lt;newip&gt; &lt;newport&gt;<\/code><\/pre>\n<h3>\u5c0f\u7ed3<\/h3>\n<p>\u81f3\u6b64\uff0c\u54e8\u5175\u7684\u5de5\u4f5c\u804c\u8d23\u53ca\u7ec6\u8282\u6211\u4eec\u5c31\u5b66\u4e60\u5b8c\u4e86\u3002\u6211\u6574\u7406\u4e86\u672c\u6587\u77e5\u8bc6\u6d88\u5316\u94fe\u8def\uff0c\u5982\u4e0b\u3002<\/p>\n<pre><code>\u5728sentinel.conf\u4e2d\u914d\u7f6e\u54e8\u5175\n-&gt; \u6ca1\u6709\u914d\u7f6e\u5176\u4ed6\u54e8\u5175ip\uff0c\u600e\u4e48\u7ec4\u6210\u96c6\u7fa4\u7684\uff1f\n-&gt; \u54e8\u5175\u662f\u600e\u4e48\u77e5\u9053\u4ece\u5e93\u7684IP\u548c\u7aef\u53e3\u7684\uff1f\n-&gt; \u804c\u8d231\uff1a\u5982\u4f55\u5224\u65ad\u4e3b\u4ece\u5e93\u4e0b\u7ebf\u4e86\uff1f\n-&gt; \u804c\u8d232\uff1a\u5982\u4f55\u9009\u5b9a\u65b0\u4e3b\u5e93\uff1f\n-&gt; \u7531\u54ea\u4e2a\u54e8\u5175\u6267\u884c\u4e3b\u4ece\u5207\u6362\uff1f\n-&gt; \u804c\u8d233\uff1a\u5982\u4f55\u628a\u65b0\u4e3b\u5e93\u544a\u8bc9\u5ba2\u6237\u7aef\uff1f<\/code><\/pre>\n<p>\u66f4\u591a\u6280\u672f\u5e72\u8d27\uff0c\u6211\u4f1a\u5728\u540e\u9762\u7684\u5185\u5bb9\u91cc\u7ee7\u7eed\u5206\u4eab\uff0c\u656c\u8bf7\u5173\u6ce8\u3002\u516c\u4f17\u53f7\u300c\u6768\u540c\u5b66technotes\u300d\uff0c\u6b22\u8fce\u6280\u672f\u4ea4\u6d41\u3002<\/p>\n<blockquote>\n<p>\u6587\u4e2d\u6240\u63d0\u53ca\u7684\u94fe\u63a5<\/p>\n<ul>\n<li>[1] <a href=\"https:\/\/link.segmentfault.com\/?enc=2ZC5ERuvrFkL2vQHMBhrNQ%3D%3D.RUaSVXuACec89qo0ERQzHQyYGEXbcEYYVYggoNPlW6M%3D\" rel=\"nofollow\">https:\/\/www.dbses.cn\/technotes<\/a><\/li>\n<li>[2] <a href=\"https:\/\/link.segmentfault.com\/?enc=UX09awa1z2aMwvYtqYD1QQ%3D%3D.oMosZ6y5ZFjbM46u7iZqGdPZNY99mX8qMCylSrua02sxCceLabrUoGlvjpYvO%2BmtcpXBZIfIQOwsdIRnpawfqw%3D%3D\" rel=\"nofollow\">https:\/\/github.com\/redis\/redi&#8230;<\/a><\/li>\n<li>[3] <a href=\"https:\/\/link.segmentfault.com\/?enc=hp7lABZd3cdpwaON2AT5tw%3D%3D.hoqz2lz2KzPkF2kup4%2BiLbxWnH0aoYA%2BK%2FOGKoCMaCveRWh13gIizYC6Q%2BrIbszfVJ7KPHNEf7%2FO1FkY7iHKCw%3D%3D\" rel=\"nofollow\">https:\/\/redis.io\/docs\/managem&#8230;<\/a><\/li>\n<\/ul>\n<p>\u9644 Redis \u6587\u6863<\/p>\n<ul>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=TI%2B7peYUqc%2FpMJFMEMR%2F4g%3D%3D.TXG2AXU9uulCcwe2syLWwZCEJMkn0EJqaRok4M1DoMOovGcv%2F3ByEnLBaAYKUep8\" rel=\"nofollow\">http:\/\/www.redis.cn\/topics\/se&#8230;<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=%2BpaEMPy81t7GSVHOYLYjqA%3D%3D.X39By0bXw9GGCJMahLL%2BQlb%2B3i%2F%2FXs0pPIYKNArsX1VUHo5sr8tBrTc3aEEsr%2BMR\" rel=\"nofollow\">https:\/\/redis.io\/docs\/managem&#8230;<\/a><\/li>\n<\/ul>\n<\/blockquote>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000043117423\">https:\/\/segmentfault.com\/a\/1190000043117423<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis\u9ad8\u53ef\u7528\u4e4b\u54e8\u5175\u673a\u5236\u5b9e\u73b0\u7ec6\u8282 \u672c\u6587\u6765\u81ea\u6211\u7684 technotes [1] Redis\u7bc7\uff0c\u6b22\u8fce\u4f60\u5e38\u6765\u901b\u901b\u3002  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10007005","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10007005","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10007005"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10007005\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10007005"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10007005"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10007005"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}