{"id":209136,"date":"2025-09-30T05:37:31","date_gmt":"2025-09-29T21:37:31","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209136\/"},"modified":"2025-09-30T05:37:31","modified_gmt":"2025-09-29T21:37:31","slug":"%e9%a6%99%e6%b8%afvps%e6%95%b0%e6%8d%ae%e5%ba%93%e9%9b%86%e7%be%a4%e5%90%8c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209136\/","title":{"rendered":"\u9999\u6e2fVPS\u6570\u636e\u5e93\u96c6\u7fa4\u540c\u6b65\u9519\u8bef\uff1a\u5feb\u901f\u8bca\u65ad\u4e0e\u4fee\u590d\u5b9e\u6218\u6307\u5357"},"content":{"rendered":"<p>\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e0e\u9ad8\u53ef\u7528\u67b6\u6784\u65e5\u76ca\u666e\u53ca\u7684\u4eca\u5929\uff0c\u6570\u636e\u5e93\u96c6\u7fa4\u540c\u6b65\u9519\u8bef\u662f\u8bb8\u591a\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\u7ecf\u5e38\u9762\u4e34\u7684\u68d8\u624b\u95ee\u9898\u3002\u65e0\u8bba\u662f\u5728\u9999\u6e2fVPS\u4e0a\u90e8\u7f72\u7684\u751f\u4ea7\u73af\u5883\uff0c\u8fd8\u662f\u8de8\u533a\u57df\u4f7f\u7528\u7f8e\u56fdVPS \/ \u7f8e\u56fd\u670d\u52a1\u5668\u505a\u707e\u5907\u6216\u8bfb\u53d6\u5206\u62c5\uff0c\u7406\u89e3\u540c\u6b65\u5931\u8d25\u7684\u6839\u672c\u539f\u56e0\u5e76\u80fd\u5feb\u901f\u5b9a\u4f4d\u4fee\u590d\uff0c\u5bf9\u4e8e\u4fdd\u969c\u4e1a\u52a1\u8fde\u7eed\u6027\u81f3\u5173\u91cd\u8981\u3002\u672c\u6587\u5c06\u4ece\u539f\u7406\u3001\u8bca\u65ad\u6d41\u7a0b\u3001\u5177\u4f53\u6545\u969c\u573a\u666f\u4e0e\u4fee\u590d\u5b9e\u8df5\uff0c\u4ee5\u53ca\u9009\u8d2d\u4e0e\u90e8\u7f72\u5efa\u8bae\u7b49\u65b9\u9762\uff0c\u63d0\u4f9b\u4e00\u5957\u5b9e\u6218\u53ef\u7528\u7684\u6280\u672f\u6307\u5357\u3002<\/p>\n<h2>\u6570\u636e\u5e93\u590d\u5236\u4e0e\u540c\u6b65\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>\u5728\u8fdb\u5165\u8bca\u65ad\u524d\uff0c\u5148\u660e\u786e\u5e38\u89c1\u7684\u6570\u636e\u5e93\u590d\u5236\u6a21\u578b\u4e0e\u6838\u5fc3\u6982\u5ff5\uff1a<\/p>\n<ul>\n<li><strong>\u4e3b\u4ece\u590d\u5236\uff08Master-Slave\uff09<\/strong>\uff1a\u4e3b\u5e93\u8bb0\u5f55\u4e8c\u8fdb\u5236\u65e5\u5fd7\uff08binlog\uff09\uff0c\u4ece\u5e93\u8bfb\u53d6\u5e76\u6267\u884c\u65e5\u5fd7\u3002\u5e38\u89c1\u4e8e MySQL \u7684\u57fa\u4e8e binlog \u7684\u590d\u5236\u3002<\/li>\n<li><strong>\u4e3b\u4e3b\u590d\u5236\uff08Master-Master\uff09<\/strong>\uff1a\u4e24\u4e2a\u6216\u591a\u4e2a\u8282\u70b9\u4e92\u4e3a\u4e3b\uff0c\u4ece\u800c\u53ef\u8bfb\u5199\u5728\u4efb\u4e00\u8282\u70b9\uff0c\u4f46\u9700\u5904\u7406\u51b2\u7a81\u4e0e\u81ea\u589e ID \u51b2\u7a81\u3002<\/li>\n<li><strong>\u7ec4\u590d\u5236 \/ Galera \/ Group Replication<\/strong>\uff1a\u540c\u6b65\u590d\u5236\uff08\u6216\u51c6\u540c\u6b65\uff09\u673a\u5236\uff0c\u4fdd\u8bc1\u591a\u4e2a\u8282\u70b9\u4e4b\u95f4\u7684\u5f3a\u4e00\u81f4\u6027\u6216\u6700\u7ec8\u4e00\u81f4\u6027\u3002<\/li>\n<li><strong>GTID\uff08\u5168\u5c40\u4e8b\u52a1\u6807\u8bc6\uff09<\/strong>\uff1a\u7528\u6765\u8ffd\u8e2a\u4e8b\u52a1\u4f4d\u7f6e\uff0c\u7b80\u5316\u4e3b\u4ece\u5207\u6362\u4e0e\u6062\u590d\u3002<\/li>\n<\/ul>\n<p>\u4e86\u89e3\u8fd9\u4e9b\u673a\u5236\u540e\uff0c\u624d\u80fd\u51c6\u786e\u5224\u65ad\u662f\u7f51\u7edc\u95ee\u9898\u3001\u914d\u7f6e\u4e0d\u4e00\u81f4\u3001\u6570\u636e\u51b2\u7a81\u8fd8\u662f\u5f15\u64ce\u635f\u574f\u5bfc\u81f4\u7684\u540c\u6b65\u9519\u8bef\u3002<\/p>\n<h2>\u5e38\u89c1\u540c\u6b65\u9519\u8bef\u7c7b\u578b\u4e0e\u5feb\u901f\u5224\u5b9a\u8981\u70b9<\/h2>\n<p>\u4ee5\u4e0b\u662f\u51fa\u73b0\u9891\u7387\u8f83\u9ad8\u7684\u51e0\u7c7b\u9519\u8bef\u4ee5\u53ca\u5feb\u901f\u6392\u67e5\u8981\u70b9\uff1a<\/p>\n<h3>\u7f51\u7edc\u4e0e\u5ef6\u8fdf\u5bfc\u81f4\u7684\u590d\u5236\u6ede\u540e\u6216\u4e2d\u65ad<\/h3>\n<ul>\n<li>\u8868\u73b0\uff1a\u4ece\u5e93\u7684 Seconds_Behind_Master \u589e\u5927\u6216\u590d\u5236\u901a\u9053\u4e2d\u65ad\u3002<\/li>\n<li>\u6392\u67e5\u8981\u70b9\uff1a\u4f7f\u7528 <strong>ping\u3001mtr\u3001iperf3\u3001tcpdump<\/strong> \u68c0\u6d4b\u4e22\u5305\/\u5ef6\u8fdf\uff1b\u68c0\u67e5 VPS \u7f51\u7edc\u7b56\u7565\u3001\u8def\u7531\u4e0e MTU\uff08\u8de8\u533a\u57df\u5982\u9999\u6e2f\u670d\u52a1\u5668\u4e0e\u7f8e\u56fd\u670d\u52a1\u5668\u6216\u7f8e\u56fdVPS\u4e4b\u95f4\u5e38\u89c1 MTU \u4e0d\u5339\u914d\u5bfc\u81f4\u5206\u7247\u95ee\u9898\uff09\u3002<\/li>\n<li>\u4fee\u590d\u5efa\u8bae\uff1a\u8c03\u6574\u7f51\u7edc\u8def\u5f84\u3001\u4fee\u590d\u4e22\u5305\u94fe\u8def\u3001\u8bbe\u7f6e\u5408\u7406\u7684 net_read_timeout \u4e0e net_write_timeout\uff1b\u5fc5\u8981\u65f6\u542f\u7528\u538b\u7f29\u6216\u5207\u6362\u5230\u4f4e\u5ef6\u8fdf\u7ebf\u8def\/\u540c\u57ce\u8282\u70b9\uff08\u5982\u4f18\u5148\u8003\u8651\u9999\u6e2fVPS \u90e8\u7f72\u4f4e\u5ef6\u8fdf\u8bfb\u5199\uff09\u3002<\/li>\n<\/ul>\n<h3>\u4e8c\u8fdb\u5236\u65e5\u5fd7\uff08binlog\uff09\u6216 relay log \u635f\u574f<\/h3>\n<ul>\n<li>\u8868\u73b0\uff1a\u4ece\u5e93\u62a5\u9519\u201cCould not find first log file name in binary log index\u201d\u6216\u201cGot fatal error &#8230; from master when reading data from binary log\u201d\u3002<\/li>\n<li>\u6392\u67e5\u8981\u70b9\uff1a\u67e5\u770b\u4e3b\u5e93 binlog \u662f\u5426\u5b58\u5728\u3001\u5927\u5c0f\u662f\u5426\u5f02\u5e38\uff1b\u68c0\u67e5\u4ece\u5e93 relay_log \u6587\u4ef6\u4e0e relay_log_info\uff1b\u67e5\u770b MySQL \u9519\u8bef\u65e5\u5fd7\u3002<\/li>\n<li>\u4fee\u590d\u5efa\u8bae\uff1a\u5982\u679c\u662f\u5355\u6761\u4e8b\u52a1\u635f\u574f\uff0c\u53ef\u5c1d\u8bd5\u8df3\u8fc7\uff08\u614e\u7528\uff09<code>SET GLOBAL SQL_SLAVE_SKIP_COUNTER=1;<\/code> \u5e76\u91cd\u542f\u590d\u5236\uff1b<strong>\u66f4\u5b89\u5168<\/strong>\u7684\u65b9\u5f0f\u662f\u4ece\u4e3b\u5e93\u91cd\u65b0\u505a\u4e00\u6b21\u5168\u5907\uff08mysqldump \u6216 xtrabackup\uff09\u7136\u540e\u91cd\u5efa\u4ece\u5e93\u3002<\/li>\n<\/ul>\n<h3>\u4e3b\u952e\u51b2\u7a81\u4e0e\u6570\u636e\u4e0d\u4e00\u81f4\uff08\u5c24\u5176\u5728\u4e3b\u4e3b\u590d\u5236\u6216\u591a\u6d3b\u573a\u666f\uff09<\/h3>\n<ul>\n<li>\u8868\u73b0\uff1aINSERT \/ UPDATE \u5931\u8d25\u3001\u51b2\u7a81\u9519\u8bef\u6216\u6570\u636e divergence\u3002<\/li>\n<li>\u6392\u67e5\u8981\u70b9\uff1a\u4f7f\u7528 <strong>pt-table-checksum<\/strong>\uff08Percona Toolkit\uff09\u5bf9\u6bd4\u8868\u95f4\u5dee\u5f02\uff1b\u67e5\u770b\u4e8b\u52a1\u987a\u5e8f\u4e0e GTID \u4fe1\u606f\u3002<\/li>\n<li>\u4fee\u590d\u5efa\u8bae\uff1a\u4f7f\u7528 <strong>pt-table-sync<\/strong> \u5bf9\u8868\u505a\u6709\u63a7\u5236\u7684\u540c\u6b65\uff1b\u4fee\u590d\u81ea\u589e\u7b56\u7565\uff08\u4f7f\u7528 auto_increment_increment \/ offset\uff09\uff0c\u6216\u5f15\u5165\u5168\u5c40\u552f\u4e00 ID \u751f\u6210\u65b9\u6848\uff08\u5982 UUID\u3001\u96ea\u82b1\u7b97\u6cd5\uff09\u3002<\/li>\n<\/ul>\n<h3>\u65f6\u95f4\u4e0d\u540c\u6b65\u5f15\u53d1\u590d\u5236\u5f02\u5e38<\/h3>\n<p>\u6570\u636e\u5e93\u96c6\u7fa4\u5bf9\u65f6\u95f4\u654f\u611f\uff0c\u5c24\u5176\u5728\u4f7f\u7528 GTID\u3001binlog \u6216\u65f6\u95f4\u6233\u4f5c\u4e3a\u5224\u5b9a\u4f9d\u636e\u65f6\u3002<\/p>\n<ul>\n<li>\u8868\u73b0\uff1a\u65e5\u5fd7\u65f6\u95f4\u4e0e\u5b9e\u9645\u4e0d\u7b26\uff0c\u5bfc\u81f4\u5907\u4efd\u7b56\u7565\u6216\u590d\u5236\u903b\u8f91\u5224\u65ad\u9519\u8bef\u3002<\/li>\n<li>\u6392\u67e5\u4e0e\u4fee\u590d\uff1a\u786e\u4fdd\u6240\u6709\u8282\u70b9\u8fd0\u884c NTP \u6216 chrony\uff0c\u6d88\u9664\u65f6\u949f\u6f02\u79fb\uff1b\u5728\u4e91\u73af\u5883\uff08\u5982\u9999\u6e2fVPS\uff09\u4e0a\u786e\u8ba4\u5bbf\u4e3b\u673a\u65f6\u95f4\u540c\u6b65\u65e0\u8bef\u3002<\/li>\n<\/ul>\n<h2>\u6df1\u5165\u8bca\u65ad\u6d41\u7a0b\uff1a\u4ece\u5feb\u5230\u6162\u7684\u6392\u67e5\u6b65\u9aa4<\/h2>\n<p>\u9762\u5bf9\u7a81\u53d1\u540c\u6b65\u9519\u8bef\uff0c\u5efa\u8bae\u6309\u4ee5\u4e0b\u6709\u5e8f\u6d41\u7a0b\u5feb\u901f\u5b9a\u4f4d\u95ee\u9898\uff1a<\/p>\n<ul>\n<li><strong>1. \u67e5\u770b\u590d\u5236\u72b6\u6001\uff1a<\/strong>\u5728\u4ece\u5e93\u6267\u884c <code>SHOW SLAVE STATUSG<\/code>\uff08\u6216 <code>SHOW REPLICA STATUSG<\/code>\uff09\u67e5\u770b Slave_IO_State\u3001Seconds_Behind_Master\u3001Last_IO_Error\u3001Last_SQL_Error\u3001Relay_Log_File \u7b49\u5b57\u6bb5\u3002<\/li>\n<li><strong>2. \u68c0\u67e5\u9519\u8bef\u65e5\u5fd7\uff1a<\/strong>\u4e3b\u5907\u53cc\u65b9\u7684 MySQL \u9519\u8bef\u65e5\u5fd7\u4e0e\u7cfb\u7edf\u65e5\u5fd7\uff08\/var\/log\/messages\u3001dmesg\uff09\u53ef\u80fd\u76f4\u63a5\u63ed\u793a\u78c1\u76d8\u3001\u5185\u5b58\u6216\u7f51\u7edc\u95ee\u9898\u3002<\/li>\n<li><strong>3. \u9a8c\u8bc1\u7f51\u7edc\u8fde\u901a\u6027\uff1a<\/strong>ping\u3001telnet \u4e3b\u5e93 3306 \u7aef\u53e3\uff0c\u4f7f\u7528 tcpdump \u6293\u5305\u786e\u8ba4\u63e1\u624b\u4e0e\u6570\u636e\u6d41\uff0ciperf3 \u6d4b\u8bd5\u5e26\u5bbd\u3002\u82e5\u4f7f\u7528\u8de8\u5883\u94fe\u8def\uff08\u9999\u6e2f\u670d\u52a1\u5668 \u4e0e \u7f8e\u56fd\u670d\u52a1\u5668\/\u7f8e\u56fdVPS\uff09\uff0c\u9700\u5173\u6ce8 ISP \u8def\u7531\u7a33\u5b9a\u6027\u3002<\/li>\n<li><strong>4. \u6570\u636e\u5b8c\u6574\u6027\u68c0\u67e5\uff1a<\/strong>\u4f7f\u7528 pt-table-checksum \u68c0\u6d4b\u6570\u636e\u5dee\u5f02\uff1b\u5bf9\u5927\u578b\u8868\u53ef\u5206\u6279\u6821\u9a8c\u907f\u514d\u6027\u80fd\u51b2\u51fb\u3002<\/li>\n<li><strong>5. \u56de\u6eda\u4e0e\u91cd\u5efa\u7b56\u7565\uff1a<\/strong>\u82e5\u65e5\u5fd7\u635f\u574f\u6216\u5dee\u5f02\u4e0d\u53ef\u4fee\u590d\uff0c\u4f18\u5148\u91c7\u7528\u70ed\u5907\u6062\u590d\uff08xtrabackup\uff09\u6216\u51b7\u5907\uff08mysqldump + restore\uff09\u91cd\u5efa\u4ece\u5e93\u3002<\/li>\n<\/ul>\n<h2>\u9488\u5bf9\u5e38\u89c1\u73af\u5883\u7684\u5177\u4f53\u4fee\u590d\u6848\u4f8b<\/h2>\n<h3>\u6848\u4f8bA\uff1a\u8de8\u533a\u57df\u590d\u5236\u51fa\u73b0\u6301\u7eed\u5ef6\u8fdf<\/h3>\n<p>\u73af\u5883\uff1a\u4e3b\u5e93\u5728\u9999\u6e2fVPS\uff0c\u4ece\u5e93\u5728\u7f8e\u56fdVPS\u3002\u95ee\u9898\uff1a\u79d2\u7ea7\u5ef6\u8fdf\u6025\u5267\u53d8\u4e3a\u6570\u79d2\u751a\u81f3\u6570\u5206\u949f\u3002<\/p>\n<p>\u8bca\u65ad\u4e0e\u5904\u7406\uff1a<\/p>\n<ul>\n<li>\u901a\u8fc7 mtr \u5b9a\u4f4d\u5230\u67d0\u4e00\u8df3\u4e22\u5305\u4e25\u91cd\uff0c\u8054\u7cfb\u5e26\u5bbd\u63d0\u4f9b\u65b9\u6216\u66f4\u6362\u8282\u70b9\u8def\u7531\u3002<\/li>\n<li>\u8c03\u6574 MySQL \u7684 replication 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\u5de5\u5177\u5b9a\u4f4d\u635f\u574f\u4f4d\u7f6e\uff1b\u82e5\u53ea\u5f71\u54cd\u5c11\u91cf\u4e8b\u52a1\uff0c\u53ef\u4ece\u9519\u8bef\u70b9\u8df3\u8fc7\u5e76\u8bb0\u5f55\u5f15\u53d1\u539f\u56e0\u3002<\/li>\n<li>\u82e5\u635f\u574f\u4e25\u91cd\uff0c\u4f7f\u7528\u4e3b\u5e93\u7684\u7269\u7406\u5907\u4efd\uff08xtrabackup\uff09\u91cd\u5efa\u53d7\u5f71\u54cd\u4ece\u5e93\uff1b\u5728\u91cd\u5efa\u524d\uff0c\u6682\u505c\u5bf9\u4e3b\u5e93\u505a\u53d8\u66f4\u6216\u8fdb\u5165\u7ef4\u62a4\u7a97\u53e3\u4ee5\u4fdd\u8bc1\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<h2>\u76d1\u63a7\u3001\u5907\u4efd\u4e0e\u9884\u9632\u63aa\u65bd\uff08\u907f\u514d\u518d\u6b21\u590d\u53d1\uff09<\/h2>\n<p>\u9884\u9632\u6c38\u8fdc\u6bd4\u4fee\u590d\u6765\u5f97\u5212\u7b97\u3002\u5efa\u8bae\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li><strong>\u5168\u9762\u76d1\u63a7\uff1a<\/strong>\u4f7f\u7528 Prometheus + Grafana \u76d1\u6d4b replication lag\u3001IO 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