{"id":209106,"date":"2025-09-30T05:16:42","date_gmt":"2025-09-29T21:16:42","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209106\/"},"modified":"2025-09-30T05:16:43","modified_gmt":"2025-09-29T21:16:43","slug":"vps-191","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209106\/","title":{"rendered":"\u9999\u6e2fVPS\u6570\u636e\u5e93\u5d29\u6e83\u5e94\u6025\uff1a5\u6b65\u5feb\u901f\u6062\u590d\u5b9e\u6218\u6307\u5357"},"content":{"rendered":"<p>\u6570\u636e\u5e93\u5d29\u6e83\u5bf9\u7f51\u7ad9\u548c\u5e94\u7528\u7684\u53ef\u7528\u6027\u5f71\u54cd\u6781\u5927\uff0c\u5c24\u5176\u662f\u8fd0\u884c\u5728\u9999\u6e2fVPS\u6216\u7f8e\u56fdVPS\u7b49\u4e91\u4e3b\u673a\u4e0a\u7684\u4e1a\u52a1\u3002\u672c\u6587\u9762\u5411\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\uff0c\u63d0\u4f9b\u4e00\u5957\u53ef\u64cd\u4f5c\u7684\u201c5\u6b65\u5feb\u901f\u6062\u590d\u5b9e\u6218\u6307\u5357\u201d\uff0c\u5e76\u5bf9\u539f\u7406\u3001\u5e94\u7528\u573a\u666f\u3001\u4f18\u52bf\u5bf9\u6bd4\u4e0e\u9009\u8d2d\u5efa\u8bae\u505a\u6df1\u5165\u89e3\u6790\uff0c\u5e2e\u52a9\u4f60\u5728\u7b2c\u4e00\u65f6\u95f4\u5185\u5c06\u670d\u52a1\u62c9\u56de\u53ef\u7528\u72b6\u6001\u5e76\u964d\u4f4e\u6570\u636e\u635f\u5931\u98ce\u9669\u3002<\/p>\n<h2>\u5e94\u6025\u6062\u590d\u7684\u57fa\u672c\u539f\u7406\u4e0e\u51c6\u5907\u5de5\u4f5c<\/h2>\n<p>\u6570\u636e\u5e93\u5d29\u6e83\u901a\u5e38\u8868\u73b0\u4e3a\u670d\u52a1\u4e0d\u53ef\u8fde\u3001\u67e5\u8be2\u54cd\u5e94\u5f02\u5e38\u6216\u6570\u636e\u6587\u4ef6\u635f\u574f\u3002\u5e94\u6025\u6062\u590d\u7684\u6838\u5fc3\u5728\u4e8e\u4e09\u70b9\uff1a\u5feb\u901f\u9694\u79bb\u6545\u969c\u3001\u5c3d\u5feb\u6062\u590d\u670d\u52a1\u53ef\u7528\u6027\u3001\u6700\u5927\u9650\u5ea6\u4fdd\u5168\u548c\u91cd\u5efa\u6570\u636e\u4e00\u81f4\u6027\u3002\u8981\u5b9e\u73b0\u8fd9\u4e09\u70b9\uff0c\u4e8b\u524d\u51c6\u5907\u5c24\u4e3a\u5173\u952e\uff0c\u5305\u62ec\u5907\u4efd\u7b56\u7565\u3001\u76d1\u63a7\u544a\u8b66\u3001\u5199\u4fdd\u62a4\u5feb\u7167\u4ee5\u53ca\u9884\u5148\u6f14\u7ec3\u6062\u590d\u6d41\u7a0b\u3002<\/p>\n<h3>\u5173\u952e\u6982\u5ff5<\/h3>\n<ul>\n<li><strong>RTO\uff08\u6062\u590d\u65f6\u95f4\u76ee\u6807\uff09<\/strong>\uff1a\u4ece\u6545\u969c\u53d1\u751f\u5230\u6062\u590d\u670d\u52a1\u53ef\u7528\u7684\u6700\u957f\u5bb9\u5fcd\u65f6\u95f4\u3002<\/li>\n<li><strong>RPO\uff08\u6062\u590d\u70b9\u76ee\u6807\uff09<\/strong>\uff1a\u5141\u8bb8\u7684\u6570\u636e\u4e22\u5931\u7a97\u53e3\uff08\u901a\u5e38\u4ee5\u65f6\u95f4\u8ba1\uff09\u3002<\/li>\n<li><strong>\u5b8c\u5168\u5907\u4efd\u3001\u589e\u91cf\u5907\u4efd\u4e0e\u4e8c\u8fdb\u5236\u65e5\u5fd7\uff08binlog\uff09<\/strong>\uff1a\u4e09\u8005\u7ed3\u5408\u53ef\u63d0\u4f9b\u65e2\u5feb\u901f\u53c8\u7cbe\u786e\u7684\u6062\u590d\u80fd\u529b\u3002<\/li>\n<li><strong>\u8bfb\u5199\u9694\u79bb<\/strong>\uff1a\u901a\u8fc7\u4e3b\u4ece\u6216\u4e3b\u4e3b\u67b6\u6784\uff0c\u5c06\u5199\u5165\u548c\u8bfb\u53d6\u5206\u79bb\u4ee5\u964d\u4f4e\u5355\u70b9\u6545\u969c\u98ce\u9669\u3002<\/li>\n<\/ul>\n<h2>5\u6b65\u5feb\u901f\u6062\u590d\u5b9e\u6218\u6307\u5357<\/h2>\n<h3>\u6b65\u9aa4\u4e00\uff1a\u7acb\u5373\u9694\u79bb\u5e76\u8bc4\u4f30\u6545\u969c\u8303\u56f4<\/h3>\n<ul>\n<li>\u7acb\u523b\u5c06\u53d7\u5f71\u54cd\u8282\u70b9\u4ece\u8d1f\u8f7d\u5747\u8861\u6216\u96c6\u7fa4\u4e2d\u4e0b\u7ebf\uff0c\u9632\u6b62\u574f\u6570\u636e\u6269\u6563\u3002<\/li>\n<li>\u68c0\u67e5\u6570\u636e\u5e93\u9519\u8bef\u65e5\u5fd7\uff08\u4f8b\u5982 MySQL \u7684 error.log\u3001PostgreSQL \u7684 pg_log\uff09\uff0c\u786e\u8ba4\u662f\u6587\u4ef6\u7cfb\u7edf\u9519\u8bef\u3001\u8868\u635f\u574f\u3001\u6b7b\u9501\u3001\u8fd8\u662f\u78c1\u76d8\u6545\u969c\u3002<\/li>\n<li>\u4f7f\u7528\u76d1\u63a7\u544a\u8b66\u4e0e\u7cfb\u7edf\u65e5\u5fd7\uff08\/var\/log\/messages\u3001dmesg\uff09\u5224\u65ad\u662f\u5426\u4e3a\u4e3b\u673a\u5c42\u9762\u95ee\u9898\uff08\u5982 I\/O \u9519\u8bef\u3001\u5185\u5b58 OOM\uff09\u3002<\/li>\n<\/ul>\n<h3>\u6b65\u9aa4\u4e8c\uff1a\u5feb\u901f\u6062\u590d\u53ef\u7528\u6027\uff08\u4e34\u65f6\u65b9\u6848\uff09<\/h3>\n<ul>\n<li>\u82e5\u4e3b\u5e93\u4e0d\u53ef\u7528\u4e14\u6709\u4ece\u5e93\uff0c\u53ef\u5feb\u901f\u63d0\u5347\u6700\u8fd1\u7684\u5e72\u51c0\u4ece\u5e93\u4e3a\u4e3b\u5e93\uff08promote\uff09\uff0c\u6062\u590d\u5199\u5165\u80fd\u529b\uff0c\u7f29\u77ed RTO\u3002<\/li>\n<li>\u65e0\u4ece\u5e93\u65f6\uff0c\u8003\u8651\u57fa\u4e8e\u6700\u8fd1\u6709\u6548\u5907\u4efd\u6062\u590d\u5230\u4e34\u65f6\u5b9e\u4f8b\uff0c\u518d\u5c06\u6d41\u91cf\u5207\u56de\u4e34\u65f6\u5b9e\u4f8b\u4ee5\u4fdd\u6301\u4e1a\u52a1\u53ef\u7528\u3002<\/li>\n<li>\u5bf9\u8bfb\u5bc6\u96c6\u578b\u4e1a\u52a1\uff0c\u53ef\u5148\u5f00\u542f\u53ea\u8bfb\u6a21\u5f0f\uff0c\u964d\u4f4e\u5199\u5165\u538b\u529b\uff0c\u7b49\u5f85\u5b8c\u6574\u4fee\u590d\u3002<\/li>\n<\/ul>\n<h3>\u6b65\u9aa4\u4e09\uff1a\u6570\u636e\u4fee\u590d\u4e0e\u4e00\u81f4\u6027\u6821\u9a8c<\/h3>\n<ul>\n<li>\u82e5\u662f\u8868\u6216\u7d22\u5f15\u635f\u574f\uff0c\u4f7f\u7528\u6570\u636e\u5e93\u63d0\u4f9b\u7684\u4fee\u590d\u5de5\u5177\uff08MySQL \u7684 myisamchk\u3001innodb_force_recovery\u3001Percona \u5de5\u5177\u96c6\uff1bPostgreSQL \u7684 pg_resetwal\u3001pg_rewind \u7b49\uff09\u5728\u5907\u4efd\u526f\u672c\u4e0a\u6267\u884c\u4fee\u590d\uff0c\u907f\u514d\u5728\u751f\u4ea7\u5b9e\u4f8b\u4e0a\u76f4\u63a5\u64cd\u4f5c\u3002<\/li>\n<li>\u4f7f\u7528 binlog \u6216 WAL\uff08Write-Ahead Logging\uff09\u56de\u653e\u4e22\u5931\u7684\u4e8b\u52a1\uff0c\u76f4\u5230\u6062\u590d\u5230\u6307\u5b9a\u7684\u65f6\u95f4\u70b9\uff08point-in-time recovery\uff0cPITR\uff09\u3002<\/li>\n<li>\u5b8c\u6210\u6062\u590d\u540e\uff0c\u6267\u884c\u4e00\u81f4\u6027\u6821\u9a8c\uff08\u884c\u6570\u3001\u6821\u9a8c\u548c\uff09\u5e76\u5bf9\u6bd4\u5e94\u7528\u5c42\u65e5\u5fd7\uff0c\u786e\u8ba4\u65e0\u4e1a\u52a1\u8bed\u4e49\u9519\u4e71\u3002<\/li>\n<\/ul>\n<h3>\u6b65\u9aa4\u56db\uff1a\u6062\u590d\u4e3b\u4ece\u540c\u6b65\u4e0e\u9a8c\u8bc1\u56de\u653e\u5b89\u5168<\/h3>\n<ul>\n<li>\u6e05\u7406\u5e76\u91cd\u5efa\u4ece\u5e93\uff0c\u4f7f\u7528\u7269\u7406\u6216\u903b\u8f91\u5907\u4efd\uff08xtrabackup\u3001pg_basebackup\uff09\u540c\u6b65\u4e3b\u5e93\u6570\u636e\u3002<\/li>\n<li>\u5728\u4e3b\u4ece\u540c\u6b65\u6062\u590d\u540e\uff0c\u9010\u6b65\u5c06\u4ece\u5e93\u52a0\u5165\u8bfb\u6d41\u91cf\uff0c\u76d1\u63a7\u5ef6\u8fdf\uff08Seconds_Behind_Master\uff09\u4e0e\u590d\u5236\u9519\u8bef\u3002<\/li>\n<li>\u82e5\u66fe\u63d0\u5347\u4ece\u5e93\u4e3a\u4e3b\uff0c\u9700\u4f7f\u7528\u5de5\u5177\uff08\u5982 pt-table-sync\uff09\u6216\u624b\u52a8\u811a\u672c\u89e3\u51b3\u53cc\u5199\u51b2\u7a81\uff0c\u5e76\u786e\u4fdd\u5e94\u7528\u5c42\u56de\u9000\u903b\u8f91\u5230\u4f4d\u3002<\/li>\n<\/ul>\n<h3>\u6b65\u9aa4\u4e94\uff1a\u603b\u7ed3\u6545\u969c\u539f\u56e0\u5e76\u56fa\u5316\u9632\u62a4\u63aa\u65bd<\/h3>\n<ul>\n<li>\u51fa\u5177\u5b8c\u6574\u7684\u6545\u969c\u62a5\u544a\uff0c\u5305\u62ec\u65f6\u95f4\u7ebf\u3001\u6839\u56e0\u5206\u6790\u3001\u6062\u590d\u6b65\u9aa4\u4e0e\u6570\u636e\u635f\u5931\u8303\u56f4\u3002<\/li>\n<li>\u4f18\u5316\u5907\u4efd\u9891\u7387\u4e0e\u4fdd\u7559\u7b56\u7565\uff0c\u63a8\u8350\u5173\u952e\u4e1a\u52a1\u91c7\u7528\u591a\u8282\u70b9\u591a AZ\uff08\u6216\u8de8\u5730\u533a\uff0c\u5982\u9999\u6e2f\u670d\u52a1\u5668\u4e0e\u7f8e\u56fd\u670d\u52a1\u5668\u7ec4\u5408\uff09\u7684\u5f02\u5730\u5bb9\u707e\u3002<\/li>\n<li>\u63a8\u8fdb\u6f14\u7ec3\u8ba1\u5212\uff0c\u5b9a\u671f\u5728\u975e\u751f\u4ea7\u73af\u5883\u590d\u73b0\u573a\u666f\u5e76\u6d4b\u91cf RTO\/RPO\uff0c\u786e\u4fdd\u56e2\u961f\u719f\u7ec3\u5ea6\u3002<\/li>\n<\/ul>\n<h2>\u5e94\u7528\u573a\u666f\u5206\u6790\u4e0e\u539f\u7406\u5ef6\u4f38<\/h2>\n<p>\u4e0d\u540c\u573a\u666f\u4e0b\u7684\u6062\u590d\u7b56\u7565\u6709\u6240\u4fa7\u91cd\uff1a<\/p>\n<ul>\n<li>\u4e2d\u5c0f\u578b\u7f51\u7ad9\uff08\u5355\u4e00\u9999\u6e2fVPS\u6216\u7f8e\u56fdVPS\uff09\uff1a\u4f18\u5148\u4fdd\u8bc1\u6bcf\u65e5\u589e\u91cf\u5907\u4efd\u4e0e\u5468\u5168\u91cf\u5907\u4efd\uff0c\u540c\u65f6\u4fdd\u7559\u4e8c\u8fdb\u5236\u65e5\u5fd7\u4ee5\u652f\u6301 PITR\u3002\u5e73\u65f6\u53ef\u5f00\u542f\u5b9a\u671f\u5feb\u7167\uff08\u5feb\u7167\u4e0d\u80fd\u66ff\u4ee3\u5b8c\u6574\u5907\u4efd\uff09\u3002<\/li>\n<li>\u4f01\u4e1a\u7ea7\u5e94\u7528\uff08\u591a\u8282\u70b9\u96c6\u7fa4\uff0c\u8de8\u5730\u57df\u5bb9\u707e\uff09\uff1a\u91c7\u7528\u4e3b\u4ece\u6216\u591a\u4e3b\u590d\u5236\u3001\u5206\u7247\uff08sharding\uff09\u4e0e\u5f02\u5730\u5907\u4efd\uff08\u4f8b\u5982\u9999\u6e2f\u670d\u52a1\u5668\u4e0e\u7f8e\u56fd\u670d\u52a1\u5668\u4e92\u4e3a\u5f02\u5730\u5907\u4efd\uff09\uff0c\u4ee5\u5b9e\u73b0\u66f4\u77ed\u7684 RTO\/RPO\u3002<\/li>\n<li>\u8bfb\u5bc6\u96c6\u6216\u5ef6\u8fdf\u654f\u611f\u4e1a\u52a1\uff1a\u901a\u8fc7\u8bfb\u5199\u5206\u79bb\u3001\u7f13\u5b58\u5c42\uff08Redis\/Memcached\uff09\u4ee5\u53ca\u52a0\u901f CDN \u51cf\u5c11\u6570\u636e\u5e93\u538b\u529b\uff0c\u964d\u4f4e\u6545\u969c\u7a97\u53e3\u3002<\/li>\n<\/ul>\n<h2>\u4f18\u52bf\u5bf9\u6bd4\uff1a\u672c\u5730\u5355\u673a vs 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