{"id":201695,"date":"2025-05-10T08:48:50","date_gmt":"2025-05-10T00:48:50","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201695\/"},"modified":"2025-05-10T08:48:50","modified_gmt":"2025-05-10T00:48:50","slug":"redis%e7%9a%84%e9%9d%a2%e8%af%95%e9%a2%98%e5%8f%8a%e7%ad%94%e6%a1%88%e6%9c%89%e5%93%aa%e4%ba%9b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201695\/","title":{"rendered":"Redis\u7684\u9762\u8bd5\u9898\u53ca\u7b54\u6848\u6709\u54ea\u4e9b"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>Redis\u7684\u9762\u8bd5\u9898\u53ca\u7b54\u6848\u6709\u54ea\u4e9b<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> 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\u901a\u8fc7encoding\u5c5e\u6027\u8bbe\u7f6e\u5bf9\u8c61\u7684\u7f16\u7801\u5f62\u5f0f\u6765\u63d0\u5347\u7075\u6d3b\u6027\u548c\u6548\u7387\uff0c\u57fa\u4e8e\u4e0d\u540c\u7684\u573a\u666fredis\u4f1a\u81ea\u52a8\u505a\u51fa\u4f18\u5316\u3002\u4e0d\u540c\u5bf9\u8c61\u7684\u7f16\u7801\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\n<p>\u5b57\u7b26\u4e32\u5bf9\u8c61string\uff1aint\u6574\u6570\u3001embstr\u7f16\u7801\u7684\u7b80\u5355\u52a8\u6001\u5b57\u7b26\u4e32\u3001raw\u7b80\u5355\u52a8\u6001\u5b57\u7b26\u4e32<\/p>\n<\/li>\n<\/ol>\n<ol>\n<li>\n<p>\u5217\u8868\u5bf9\u8c61list\uff1aziplist\u3001linkedlist<\/p>\n<\/li>\n<\/ol>\n<ol>\n<li>\n<p>\u54c8\u5e0c\u5bf9\u8c61hash\uff1aziplist\u3001hashtable<\/p>\n<\/li>\n<\/ol>\n<ol>\n<li>\n<p>\u96c6\u5408\u5bf9\u8c61set\uff1aintset\u3001hashtable<\/p>\n<\/li>\n<\/ol>\n<ol>\n<li>\n<p>\u6709\u5e8f\u96c6\u5408\u5bf9\u8c61zset\uff1aziplist\u3001skiplist<\/p>\n<\/li>\n<\/ol>\n<h3><strong>Redis\u4e3a\u4ec0\u4e48\u5feb\u5462\uff1f<\/strong><\/h3>\n<p>redis &nbsp;\u7684\u901f\u5ea6\u975e\u5e38\u7684\u5feb\uff0c\u5355\u673a\u7684 redis \u5c31\u53ef\u4ee5\u652f\u6491\u6bcf\u79d210\u51e0\u4e07\u7684\u5e76\u53d1\uff0c\u76f8\u5bf9\u4e8e mysql \u6765\u8bf4\uff0c\u6027\u80fd\u662f mysql 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&nbsp;\u8fd8\u662f\u4f7f\u7528\u5355\u7ebf\u7a0b\u6a21\u578b\u6765\u5904\u7406\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\uff0c\u53ea\u662f\u4f7f\u7528\u591a\u7ebf\u7a0b\u6765\u5904\u7406\u6570\u636e\u7684\u8bfb\u5199\u548c\u534f\u8bae\u89e3\u6790\uff0c\u6267\u884c\u547d\u4ee4\u8fd8\u662f\u4f7f\u7528\u5355\u7ebf\u7a0b\u3002<\/p>\n<p>\u8fd9\u6837\u505a\u7684\u76ee\u7684\u662f\u56e0\u4e3a redis &nbsp;\u7684\u6027\u80fd\u74f6\u9888\u5728\u4e8e\u7f51\u7edcIO\u800c\u975eCPU\uff0c\u4f7f\u7528\u591a\u7ebf\u7a0b\u80fd\u63d0\u5347IO\u8bfb\u5199\u7684\u6548\u7387\uff0c\u4ece\u800c\u6574\u4f53\u63d0\u9ad8 redis \u7684\u6027\u80fd\u3002<\/p>\n<h3><strong>\u77e5\u9053\u4ec0\u4e48\u662f\u70edkey\u5417\uff1f\u70edkey\u95ee\u9898\u600e\u4e48\u89e3\u51b3\uff1f<\/strong><\/h3>\n<p>\u6240\u8c13\u70edkey\u95ee\u9898\u5c31\u662f\uff0c\u7a81\u7136\u6709\u51e0\u5341\u4e07\u7684\u8bf7\u6c42\u53bb\u8bbf\u95ee redis &nbsp;\u4e0a\u7684\u67d0\u4e2a\u7279\u5b9akey\uff0c\u90a3\u4e48\u8fd9\u6837\u4f1a\u9020\u6210\u6d41\u91cf\u8fc7\u4e8e\u96c6\u4e2d\uff0c\u8fbe\u5230\u7269\u7406\u7f51\u5361\u4e0a\u9650\uff0c\u4ece\u800c\u5bfc\u81f4\u8fd9\u53f0redis\u7684\u670d\u52a1\u5668\u5b95\u673a\u5f15\u53d1\u96ea\u5d29\u3002<\/p>\n<p>\u9488\u5bf9\u70edkey\u7684\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n<ol>\n<li>\n<p>\u63d0\u524d\u628a\u70edkey\u6253\u6563\u5230\u4e0d\u540c\u7684\u670d\u52a1\u5668\uff0c\u964d\u4f4e\u538b\u529b<\/p>\n<\/li>\n<li>\n<p>\u52a0\u5165\u4e8c\u7ea7\u7f13\u5b58\uff0c\u63d0\u524d\u52a0\u8f7d\u70edkey\u6570\u636e\u5230\u5185\u5b58\u4e2d\uff0c\u5982\u679c redis \u5b95\u673a\uff0c\u8d70\u5185\u5b58\u67e5\u8be2<\/p>\n<\/li>\n<\/ol>\n<h3><strong>\u4ec0\u4e48\u662f\u7f13\u5b58\u51fb\u7a7f\u3001\u7f13\u5b58\u7a7f\u900f\u3001\u7f13\u5b58\u96ea\u5d29\uff1f<\/strong><\/h3>\n<h4>\u7f13\u5b58\u51fb\u7a7f<\/h4>\n<p>\u7f13\u5b58\u51fb\u7a7f\u7684\u6982\u5ff5\u5c31\u662f\u5355\u4e2akey\u5e76\u53d1\u8bbf\u95ee\u8fc7\u9ad8\uff0c\u8fc7\u671f\u65f6\u5bfc\u81f4\u6240\u6709\u8bf7\u6c42\u76f4\u63a5\u6253\u5230db\u4e0a\uff0c\u8fd9\u4e2a\u548c\u70edkey\u7684\u95ee\u9898\u6bd4\u8f83\u7c7b\u4f3c\uff0c\u53ea\u662f\u8bf4\u7684\u70b9\u5728\u4e8e\u8fc7\u671f\u5bfc\u81f4\u8bf7\u6c42\u5168\u90e8\u6253\u5230DB\u4e0a\u800c\u5df2\u3002<\/p>\n<p>\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n<ol>\n<li>\n<p>\u52a0\u9501\u66f4\u65b0\uff0c\u6bd4\u5982\u8bf7\u6c42\u67e5\u8be2A\uff0c\u53d1\u73b0\u7f13\u5b58\u4e2d\u6ca1\u6709\uff0c\u5bf9A\u8fd9\u4e2akey\u52a0\u9501\uff0c\u540c\u65f6\u53bb\u6570\u636e\u5e93\u67e5\u8be2\u6570\u636e\uff0c\u5199\u5165\u7f13\u5b58\uff0c\u518d\u8fd4\u56de\u7ed9\u7528\u6237\uff0c\u8fd9\u6837\u540e\u9762\u7684\u8bf7\u6c42\u5c31\u53ef\u4ee5\u4ece\u7f13\u5b58\u4e2d\u62ff\u5230\u6570\u636e\u4e86\u3002<\/p>\n<\/li>\n<li>\n<p>\u5c06\u8fc7\u671f\u65f6\u95f4\u7ec4\u5408\u5199\u5728value\u4e2d\uff0c\u901a\u8fc7\u5f02\u6b65\u7684\u65b9\u5f0f\u4e0d\u65ad\u7684\u5237\u65b0\u8fc7\u671f\u65f6\u95f4\uff0c\u9632\u6b62\u6b64\u7c7b\u73b0\u8c61\u3002<\/p>\n<\/li>\n<\/ol>\n<h4>\u7f13\u5b58\u7a7f\u900f<\/h4>\n<p>\u7f13\u5b58\u7a7f\u900f\u662f\u6307\u67e5\u8be2\u4e0d\u5b58\u5728\u7f13\u5b58\u4e2d\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u8bf7\u6c42\u90fd\u4f1a\u6253\u5230DB\uff0c\u5c31\u50cf\u7f13\u5b58\u4e0d\u5b58\u5728\u4e00\u6837\u3002<\/p>\n<p>\u9488\u5bf9\u8fd9\u4e2a\u95ee\u9898\uff0c\u52a0\u4e00\u5c42\u5e03\u9686\u8fc7\u6ee4\u5668\u3002\u5e03\u9686\u8fc7\u6ee4\u5668\u7684\u539f\u7406\u662f\u5728\u4f60\u5b58\u5165\u6570\u636e\u7684\u65f6\u5019\uff0c\u4f1a\u901a\u8fc7\u6563\u5217\u51fd\u6570\u5c06\u5b83\u6620\u5c04\u4e3a\u4e00\u4e2a\u4f4d\u6570\u7ec4\u4e2d\u7684K\u4e2a\u70b9\uff0c\u540c\u65f6\u628a\u4ed6\u4eec\u7f6e\u4e3a1\u3002<\/p>\n<p>\u8fd9\u6837\u5f53\u7528\u6237\u518d\u6b21\u6765\u67e5\u8be2A\uff0c\u800cA\u5728\u5e03\u9686\u8fc7\u6ee4\u5668\u503c\u4e3a0\uff0c\u76f4\u63a5\u8fd4\u56de\uff0c\u5c31\u4e0d\u4f1a\u4ea7\u751f\u51fb\u7a7f\u8bf7\u6c42\u6253\u5230DB\u4e86\u3002<\/p>\n<p>\u663e\u7136\uff0c\u4f7f\u7528\u5e03\u9686\u8fc7\u6ee4\u5668\u4e4b\u540e\u4f1a\u6709\u4e00\u4e2a\u95ee\u9898\u5c31\u662f\u8bef\u5224\uff0c\u56e0\u4e3a\u5b83\u672c\u8eab\u662f\u4e00\u4e2a\u6570\u7ec4\uff0c\u53ef\u80fd\u4f1a\u6709\u591a\u4e2a\u503c\u843d\u5230\u540c\u4e00\u4e2a\u4f4d\u7f6e\uff0c\u90a3\u4e48\u7406\u8bba\u4e0a\u6765\u8bf4\u53ea\u8981\u6211\u4eec\u7684\u6570\u7ec4\u957f\u5ea6\u591f\u957f\uff0c\u8bef\u5224\u7684\u6982\u7387\u5c31\u4f1a\u8d8a\u4f4e\uff0c\u8fd9\u79cd\u95ee\u9898\u5c31\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u6765\u5c31\u597d\u4e86\u3002<\/p>\n<h4>\u7f13\u5b58\u96ea\u5d29<\/h4>\n<p>\u5f53\u67d0\u4e00\u65f6\u523b\u53d1\u751f\u5927\u89c4\u6a21\u7684\u7f13\u5b58\u5931\u6548\u7684\u60c5\u51b5\uff0c\u6bd4\u5982\u4f60\u7684\u7f13\u5b58\u670d\u52a1\u5b95\u673a\u4e86\uff0c\u4f1a\u6709\u5927\u91cf\u7684\u8bf7\u6c42\u8fdb\u6765\u76f4\u63a5\u6253\u5230DB\u4e0a\uff0c\u8fd9\u6837\u53ef\u80fd\u5bfc\u81f4\u6574\u4e2a\u7cfb\u7edf\u7684\u5d29\u6e83\uff0c\u79f0\u4e3a\u96ea\u5d29\u3002\u96ea\u5d29\u548c\u51fb\u7a7f\u3001\u70edkey\u7684\u95ee\u9898\u4e0d\u592a\u4e00\u6837\u7684\u662f\uff0c\u4ed6\u662f\u6307\u5927\u89c4\u6a21\u7684\u7f13\u5b58\u90fd\u8fc7\u671f\u5931\u6548\u4e86\u3002<\/p>\n<p>\u9488\u5bf9\u96ea\u5d29\u51e0\u4e2a\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n<ol>\n<li>\n<p>\u9488\u5bf9\u4e0d\u540ckey\u8bbe\u7f6e\u4e0d\u540c\u7684\u8fc7\u671f\u65f6\u95f4\uff0c\u907f\u514d\u540c\u65f6\u8fc7\u671f<\/p>\n<\/li>\n<li>\n<p>\u9650\u6d41\uff0c\u5982\u679credis\u5b95\u673a\uff0c\u53ef\u4ee5\u9650\u6d41\uff0c\u907f\u514d\u540c\u65f6\u523b\u5927\u91cf\u8bf7\u6c42\u6253\u5d29DB<\/p>\n<\/li>\n<li>\n<p>\u4e8c\u7ea7\u7f13\u5b58\uff0c\u540c\u70edkey\u7684\u65b9\u6848\u3002<\/p>\n<\/li>\n<\/ol>\n<h3><strong>Redis\u7684\u8fc7\u671f\u7b56\u7565\u6709\u54ea\u4e9b\uff1f<\/strong><\/h3>\n<p>redis\u4e3b\u8981\u67092\u79cd\u8fc7\u671f\u5220\u9664\u7b56\u7565<\/p>\n<h4>\u60f0\u6027\u5220\u9664<\/h4>\n<p>\u60f0\u6027\u5220\u9664\u6307\u7684\u662f\u5f53\u6211\u4eec\u67e5\u8be2key\u7684\u65f6\u5019\u624d\u5bf9key\u8fdb\u884c\u68c0\u6d4b\uff0c\u5982\u679c\u5df2\u7ecf\u8fbe\u5230\u8fc7\u671f\u65f6\u95f4\uff0c\u5219\u5220\u9664\u3002\u663e\u7136\uff0c\u4ed6\u6709\u4e00\u4e2a\u7f3a\u70b9\u5c31\u662f\u5982\u679c\u8fd9\u4e9b\u8fc7\u671f\u7684key\u6ca1\u6709\u88ab\u8bbf\u95ee\uff0c\u90a3\u4e48\u4ed6\u5c31\u4e00\u76f4\u65e0\u6cd5\u88ab\u5220\u9664\uff0c\u800c\u4e14\u4e00\u76f4\u5360\u7528\u5185\u5b58\u3002<\/p>\n<h4>\u5b9a\u671f\u5220\u9664<\/h4>\n<p>\u5b9a\u671f\u5220\u9664\u6307\u7684\u662fredis\u6bcf\u9694\u4e00\u6bb5\u65f6\u95f4\u5bf9\u6570\u636e\u5e93\u505a\u4e00\u6b21\u68c0\u67e5\uff0c\u5220\u9664\u91cc\u9762\u7684\u8fc7\u671fkey\u3002\u7531\u4e8e\u4e0d\u53ef\u80fd\u5bf9\u6240\u6709key\u53bb\u505a\u8f6e\u8be2\u6765\u5220\u9664\uff0c\u6240\u4ee5redis\u4f1a\u6bcf\u6b21\u968f\u673a\u53d6\u4e00\u4e9bkey\u53bb\u505a\u68c0\u67e5\u548c\u5220\u9664\u3002<\/p>\n<h3><strong>\u90a3\u4e48\u5b9a\u671f+\u60f0\u6027\u90fd\u6ca1\u6709\u5220\u9664\u8fc7\u671f\u7684key\u600e\u4e48\u529e\uff1f<\/strong><\/h3>\n<p>\u5047\u8bberedis\u6bcf\u6b21\u5b9a\u671f\u968f\u673a\u67e5\u8be2key\u7684\u65f6\u5019\u6ca1\u6709\u5220\u6389\uff0c\u8fd9\u4e9bkey\u4e5f\u6ca1\u6709\u505a\u67e5\u8be2\u7684\u8bdd\uff0c\u5c31\u4f1a\u5bfc\u81f4\u8fd9\u4e9bkey\u4e00\u76f4\u4fdd\u5b58\u5728redis\u91cc\u9762\u65e0\u6cd5\u88ab\u5220\u9664\uff0c\u8fd9\u65f6\u5019\u5c31\u4f1a\u8d70\u5230redis\u7684\u5185\u5b58\u6dd8\u6c70\u673a\u5236\u3002<\/p>\n<ol>\n<li>\n<p>volatile-lru\uff1a\u4ece\u5df2\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u7684key\u4e2d\uff0c\u79fb\u51fa\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684key\u8fdb\u884c\u6dd8\u6c70<\/p>\n<\/li>\n<li>\n<p>volatile-ttl\uff1a\u4ece\u5df2\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u7684key\u4e2d\uff0c\u79fb\u51fa\u5c06\u8981\u8fc7\u671f\u7684key<\/p>\n<\/li>\n<li>\n<p>volatile-random\uff1a\u4ece\u5df2\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u7684key\u4e2d\u968f\u673a\u9009\u62e9key\u6dd8\u6c70<\/p>\n<\/li>\n<li>\n<p>allkeys-lru\uff1a\u4ecekey\u4e2d\u9009\u62e9\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684\u8fdb\u884c\u6dd8\u6c70<\/p>\n<\/li>\n<li>\n<p>allkeys-random\uff1a\u4ecekey\u4e2d\u968f\u673a\u9009\u62e9key\u8fdb\u884c\u6dd8\u6c70<\/p>\n<\/li>\n<li>\n<p>noeviction\uff1a\u5f53\u5185\u5b58\u8fbe\u5230\u9608\u503c\u7684\u65f6\u5019\uff0c\u65b0\u5199\u5165\u64cd\u4f5c\u62a5\u9519<\/p>\n<\/li>\n<\/ol>\n<h3><strong>\u6301\u4e45\u5316\u65b9\u5f0f\u6709\u54ea\u4e9b\uff1f\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/strong><\/h3>\n<p>redis\u6301\u4e45\u5316\u65b9\u6848\u5206\u4e3aRDB\u548cAOF\u4e24\u79cd\u3002<\/p>\n<h4>RDB<\/h4>\n<p>RDB\u6301\u4e45\u5316\u53ef\u4ee5\u624b\u52a8\u6267\u884c\u4e5f\u53ef\u4ee5\u6839\u636e\u914d\u7f6e\u5b9a\u671f\u6267\u884c\uff0c\u5b83\u7684\u4f5c\u7528\u662f\u5c06\u67d0\u4e2a\u65f6\u95f4\u70b9\u4e0a\u7684\u6570\u636e\u5e93\u72b6\u6001\u4fdd\u5b58\u5230RDB\u6587\u4ef6\u4e2d\uff0cRDB\u6587\u4ef6\u662f\u4e00\u4e2a\u538b\u7f29\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\uff0c\u901a\u8fc7\u5b83\u53ef\u4ee5\u8fd8\u539f\u67d0\u4e2a\u65f6\u523b\u6570\u636e\u5e93\u7684\u72b6\u6001\u3002\u7531\u4e8eRDB\u6587\u4ef6\u662f\u4fdd\u5b58\u5728\u786c\u76d8\u4e0a\u7684\uff0c\u6240\u4ee5\u5373\u4f7fredis\u5d29\u6e83\u6216\u8005\u9000\u51fa\uff0c\u53ea\u8981RDB\u6587\u4ef6\u5b58\u5728\uff0c\u5c31\u53ef\u4ee5\u7528\u5b83\u6765\u6062\u590d\u8fd8\u539f\u6570\u636e\u5e93\u7684\u72b6\u6001\u3002<\/p>\n<p>\u53ef\u4ee5\u901a\u8fc7SAVE\u6216\u8005BGSAVE\u6765\u751f\u6210RDB\u6587\u4ef6\u3002<\/p>\n<p>SAVE\u547d\u4ee4\u4f1a\u963b\u585eredis\u8fdb\u7a0b\uff0c\u76f4\u5230RDB\u6587\u4ef6\u751f\u6210\u5b8c\u6bd5\uff0c\u5728\u8fdb\u7a0b\u963b\u585e\u671f\u95f4\uff0credis\u4e0d\u80fd\u5904\u7406\u4efb\u4f55\u547d\u4ee4\u8bf7\u6c42\uff0c\u8fd9\u663e\u7136\u662f\u4e0d\u5408\u9002\u7684\u3002<\/p>\n<p>BGSAVE\u5219\u662f\u4f1afork\u51fa\u4e00\u4e2a\u5b50\u8fdb\u7a0b\uff0c\u7136\u540e\u7531\u5b50\u8fdb\u7a0b\u53bb\u8d1f\u8d23\u751f\u6210RDB\u6587\u4ef6\uff0c\u7236\u8fdb\u7a0b\u8fd8\u53ef\u4ee5\u7ee7\u7eed\u5904\u7406\u547d\u4ee4\u8bf7\u6c42\uff0c\u4e0d\u4f1a\u963b\u585e\u8fdb\u7a0b\u3002<\/p>\n<h4>AOF<\/h4>\n<p>AOF\u548cRDB\u4e0d\u540c\uff0cAOF\u662f\u901a\u8fc7\u4fdd\u5b58redis\u670d\u52a1\u5668\u6240\u6267\u884c\u7684\u5199\u547d\u4ee4\u6765\u8bb0\u5f55\u6570\u636e\u5e93\u72b6\u6001\u7684\u3002<\/p>\n<p>AOF\u901a\u8fc7\u8ffd\u52a0\u3001\u5199\u5165\u3001\u540c\u6b65\u4e09\u4e2a\u6b65\u9aa4\u6765\u5b9e\u73b0\u6301\u4e45\u5316\u673a\u5236\u3002<\/p>\n<ol>\n<li>\n<p>\u5f53AOF\u6301\u4e45\u5316\u5904\u4e8e\u6fc0\u6d3b\u72b6\u6001\uff0c\u670d\u52a1\u5668\u6267\u884c\u5b8c\u5199\u547d\u4ee4\u4e4b\u540e\uff0c\u5199\u547d\u4ee4\u5c06\u4f1a\u88ab\u8ffd\u52a0append\u5230aof_buf\u7f13\u51b2\u533a\u7684\u672b\u5c3e<\/p>\n<\/li>\n<li>\n<p>\u5728\u670d\u52a1\u5668\u6bcf\u7ed3\u675f\u4e00\u4e2a\u4e8b\u4ef6\u5faa\u73af\u4e4b\u524d\uff0c\u5c06\u4f1a\u8c03\u7528flushAppendOnlyFile\u51fd\u6570\u51b3\u5b9a\u662f\u5426\u8981\u5c06aof_buf\u7684\u5185\u5bb9\u4fdd\u5b58\u5230AOF\u6587\u4ef6\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6eappendfsync\u6765\u51b3\u5b9a\u3002<\/p>\n<\/li>\n<\/ol>\n<pre>always&nbsp;##aof_buf\u5185\u5bb9\u5199\u5165\u5e76\u540c\u6b65\u5230AOF\u6587\u4ef6\neverysec&nbsp;##\u5c06aof_buf\u4e2d\u5185\u5bb9\u5199\u5165\u5230AOF\u6587\u4ef6\uff0c\u5982\u679c\u4e0a\u6b21\u540c\u6b65AOF\u6587\u4ef6\u65f6\u95f4\u8ddd\u79bb\u73b0\u5728\u8d85\u8fc71\u79d2\uff0c\u5219\u518d\u6b21\u5bf9AOF\u6587\u4ef6\u8fdb\u884c\u540c\u6b65\nno&nbsp;##\u5c06aof_buf\u5185\u5bb9\u5199\u5165AOF\u6587\u4ef6\uff0c\u4f46\u662f\u5e76\u4e0d\u5bf9AOF\u6587\u4ef6\u8fdb\u884c\u540c\u6b65\uff0c\u540c\u6b65\u65f6\u95f4\u7531\u64cd\u4f5c\u7cfb\u7edf\u51b3\u5b9a<\/pre>\n<p>\u5982\u679c\u4e0d\u8bbe\u7f6e\uff0c\u9ed8\u8ba4\u9009\u9879\u5c06\u4f1a\u662feverysec\uff0c\u56e0\u4e3aalways\u6765\u8bf4\u867d\u7136\u6700\u5b89\u5168\uff08\u53ea\u4f1a\u4e22\u5931\u4e00\u6b21\u4e8b\u4ef6\u5faa\u73af\u7684\u5199\u547d\u4ee4\uff09\uff0c\u4f46\u662f\u6027\u80fd\u8f83\u5dee\uff0c\u800ceverysec\u6a21\u5f0f\u53ea\u4e0d\u8fc7\u4f1a\u53ef\u80fd\u4e22\u59311\u79d2\u949f\u7684\u6570\u636e\uff0c\u800cno\u6a21\u5f0f\u7684\u6548\u7387\u548ceverysec\u76f8\u4eff\uff0c\u4f46\u662f\u4f1a\u4e22\u5931\u4e0a\u6b21\u540c\u6b65AOF\u6587\u4ef6\u4e4b\u540e\u7684\u6240\u6709\u5199\u547d\u4ee4\u6570\u636e\u3002<\/p>\n<h3><strong>\u600e\u4e48\u5b9e\u73b0Redis\u7684\u9ad8\u53ef\u7528\uff1f<\/strong><\/h3>\n<p>\u8981\u60f3\u5b9e\u73b0\u9ad8\u53ef\u7528\uff0c\u4e00\u53f0\u673a\u5668\u80af\u5b9a\u662f\u4e0d\u591f\u7684\uff0c\u800credis\u8981\u4fdd\u8bc1\u9ad8\u53ef\u7528\uff0c\u67092\u4e2a\u53ef\u9009\u65b9\u6848\u3002<\/p>\n<h4>\u4e3b\u4ece\u67b6\u6784<\/h4>\n<p>\u4e3b\u4ece\u6a21\u5f0f\u662f\u6700\u7b80\u5355\u7684\u5b9e\u73b0\u9ad8\u53ef\u7528\u7684\u65b9\u6848\uff0c\u6838\u5fc3\u5c31\u662f\u4e3b\u4ece\u540c\u6b65\u3002\u4e3b\u4ece\u540c\u6b65\u7684\u539f\u7406\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\n<p>slave\u53d1\u9001sync\u547d\u4ee4\u5230master<\/p>\n<\/li>\n<li>\n<p>master\u6536\u5230sync\u4e4b\u540e\uff0c\u6267\u884cbgsave\uff0c\u751f\u6210RDB\u5168\u91cf\u6587\u4ef6<\/p>\n<\/li>\n<li>\n<p>master\u628aslave\u7684\u5199\u547d\u4ee4\u8bb0\u5f55\u5230\u7f13\u5b58<\/p>\n<\/li>\n<li>\n<p>bgsave\u6267\u884c\u5b8c\u6bd5\u4e4b\u540e\uff0c\u53d1\u9001RDB\u6587\u4ef6\u5230slave\uff0cslave\u6267\u884c<\/p>\n<\/li>\n<li>\n<p>master\u53d1\u9001\u7f13\u5b58\u4e2d\u7684\u5199\u547d\u4ee4\u5230slave\uff0cslave\u6267\u884c<\/p>\n<\/li>\n<\/ol>\n<p>\u8fd9\u91cc\u6211\u5199\u7684\u8fd9\u4e2a\u547d\u4ee4\u662fsync\uff0c\u4f46\u662f\u5728redis2.8\u7248\u672c\u4e4b\u540e\u5df2\u7ecf\u4f7f\u7528psync\u6765\u66ff\u4ee3sync\u4e86\uff0c\u539f\u56e0\u662fsync\u547d\u4ee4\u975e\u5e38\u6d88\u8017\u7cfb\u7edf\u8d44\u6e90\uff0c\u800cpsync\u7684\u6548\u7387\u66f4\u9ad8\u3002<\/p>\n<h4>\u54e8\u5175<\/h4>\n<p>\u57fa\u4e8e\u4e3b\u4ece\u65b9\u6848\u7684\u7f3a\u70b9\u8fd8\u662f\u5f88\u660e\u663e\u7684\uff0c\u5047\u8bbemaster\u5b95\u673a\uff0c\u90a3\u4e48\u5c31\u4e0d\u80fd\u5199\u5165\u6570\u636e\uff0c\u90a3\u4e48slave\u4e5f\u5c31\u5931\u53bb\u4e86\u4f5c\u7528\uff0c\u6574\u4e2a\u67b6\u6784\u5c31\u4e0d\u53ef\u7528\u4e86\uff0c\u9664\u975e\u4f60\u624b\u52a8\u5207\u6362\uff0c\u4e3b\u8981\u539f\u56e0\u5c31\u662f\u56e0\u4e3a\u6ca1\u6709\u81ea\u52a8\u6545\u969c\u8f6c\u79fb\u673a\u5236\u3002\u800c\u54e8\u5175(sentinel)\u7684\u529f\u80fd\u6bd4\u5355\u7eaf\u7684\u4e3b\u4ece\u67b6\u6784\u5168\u9762\u7684\u591a\u4e86\uff0c\u5b83\u5177\u5907\u81ea\u52a8\u6545\u969c\u8f6c\u79fb\u3001\u96c6\u7fa4\u76d1\u63a7\u3001\u6d88\u606f\u901a\u77e5\u7b49\u529f\u80fd\u3002<\/p>\n<p>\u54e8\u5175\u53ef\u4ee5\u540c\u65f6\u76d1\u89c6\u591a\u4e2a\u4e3b\u4ece\u670d\u52a1\u5668\uff0c\u5e76\u4e14\u5728\u88ab\u76d1\u89c6\u7684master\u4e0b\u7ebf\u65f6\uff0c\u81ea\u52a8\u5c06\u67d0\u4e2aslave\u63d0\u5347\u4e3amaster\uff0c\u7136\u540e\u7531\u65b0\u7684master\u7ee7\u7eed\u63a5\u6536\u547d\u4ee4\u3002\u6574\u4e2a\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\n<p>\u521d\u59cb\u5316sentinel\uff0c\u5c06\u666e\u901a\u7684redis\u4ee3\u7801\u66ff\u6362\u6210sentinel\u4e13\u7528\u4ee3\u7801<\/p>\n<\/li>\n<li>\n<p>\u521d\u59cb\u5316masters\u5b57\u5178\u548c\u670d\u52a1\u5668\u4fe1\u606f\uff0c\u670d\u52a1\u5668\u4fe1\u606f\u4e3b\u8981\u4fdd\u5b58ip:port\uff0c\u5e76\u8bb0\u5f55\u5b9e\u4f8b\u7684\u5730\u5740\u548cID<\/p>\n<\/li>\n<li>\n<p>\u521b\u5efa\u548cmaster\u7684\u4e24\u4e2a\u8fde\u63a5\uff0c\u547d\u4ee4\u8fde\u63a5\u548c\u8ba2\u9605\u8fde\u63a5\uff0c\u5e76\u4e14\u8ba2\u9605sentinel:hello\u9891\u9053<\/p>\n<\/li>\n<li>\n<p>\u6bcf\u969410\u79d2\u5411master\u53d1\u9001info\u547d\u4ee4\uff0c\u83b7\u53d6master\u548c\u5b83\u4e0b\u9762\u6240\u6709slave\u7684\u5f53\u524d\u4fe1\u606f<\/p>\n<\/li>\n<li>\n<p>\u5f53\u53d1\u73b0master\u6709\u65b0\u7684slave\u4e4b\u540e\uff0csentinel\u548c\u65b0\u7684slave\u540c\u6837\u5efa\u7acb\u4e24\u4e2a\u8fde\u63a5\uff0c\u540c\u65f6\u6bcf\u4e2a10\u79d2\u53d1\u9001info\u547d\u4ee4\uff0c\u66f4\u65b0master\u4fe1\u606f<\/p>\n<\/li>\n<li>\n<p>sentinel\u6bcf\u96941\u79d2\u5411\u6240\u6709\u670d\u52a1\u5668\u53d1\u9001ping\u547d\u4ee4\uff0c\u5982\u679c\u67d0\u53f0\u670d\u52a1\u5668\u5728\u914d\u7f6e\u7684\u54cd\u5e94\u65f6\u95f4\u5185\u8fde\u7eed\u8fd4\u56de\u65e0\u6548\u56de\u590d\uff0c\u5c06\u4f1a\u88ab\u6807\u8bb0\u4e3a\u4e0b\u7ebf\u72b6\u6001<\/p>\n<\/li>\n<li>\n<p>\u9009\u4e3e\u51fa\u9886\u5934sentinel\uff0c\u9886\u5934sentinel\u9700\u8981\u534a\u6570\u4ee5\u4e0a\u7684sentinel\u540c\u610f<\/p>\n<\/li>\n<li>\n<p>\u9886\u5934sentinel\u4ece\u5df2\u4e0b\u7ebf\u7684\u7684master\u6240\u6709slave\u4e2d\u6311\u9009\u4e00\u4e2a\uff0c\u5c06\u5176\u8f6c\u6362\u4e3amaster<\/p>\n<\/li>\n<li>\n<p>\u8ba9\u6240\u6709\u7684slave\u6539\u4e3a\u4ece\u65b0\u7684master\u590d\u5236\u6570\u636e<\/p>\n<\/li>\n<li>\n<p>\u5c06\u539f\u6765\u7684master\u8bbe\u7f6e\u4e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