然后使用CHANGE MASTER TO命令建立主从关联,再使用start slave启动从库。...但是,这样会发现出现 Fatal error: The slave I/O thread stops because master and slave have equal MySQL server UUIDs...导致同步I/O出错。原因在于,拷贝整个data目录,把auto.cnf文件也拷贝过来了,里面记录了数据库的uuid,每个库的uuid应该是不一样的。...解决办法,重新更改一下从库的server-id,然后重启服务,问题就解决了。...---- Previous 使用淘宝提供的Rubygems镜像 Next 自动清理MySQL
场景一:因为数据量非常,大概有1.4T,需要在原先master1-slave1的情况下再创建一个库slave2,并且挂在slave1下,即master1-slave1-slave2的结构。...为了方便,当时停掉从库salve1,show master status记录状态,开启log_slave_updates,并且关闭salve1,然后将这个从库的data文件夹直接copy到新的从库,结果在创建...slave2和slave1的主从关系时报错 Fatal error: The slave I/O thread stops because master and slave have equal MySQL...原因分析: mysql 5.6的复制引入了uuid的概念,各个复制结构中的server_uuid得保证不一样,但是查看到直接copy data文件夹后server_uuid是相同的,show variables...my.cnf文件,报错 Fatal error: The slave I/O thread stops because master and slave have equal MySQL server
今天在学习MyCat环境搭建的时候,在配置MySql的主从模式,发现slave在配置完毕后,配置的内容全部正确的情况下,报错了? ?...Last_IO_Error: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server...忽然一想,原来是虚拟机的环境都是从一个母机上克隆下来的, 所以虚拟机上面的mysql环境配置内容肯定都相同,所以导致了他们的UUID相同, 然而我们要配置数据库的主从模式必须不能UUID相同, 解决办法...: 在slave虚拟机上,我们把UUID的配置文件删除,然后在重新启动mysql服务就OK了 [root@rebirth ~]# rm -rf /var/lib/mysql/auto.cnf [root
最近在部署MySQL主从复制架构的时候,碰到了"Last_IO_Error: Fatal error: The slave I/O thread stops because master and...slave have equal MySQL server UUIDs; these UUIDs must be different for replication to work."...1、错误消息 mysql> show slave staus; Last_IO_Error: Fatal error: The slave I/O thread stops because master...and slave have equal MySQL server UUIDs; these UUIDs must be different for replication to work. 2...all relay log; waiting for the slave I/O thread to update it ###主库端查看自身的uuid master_mysql> show variables
进行mysql5.7版本 主从同步的时候 ,克隆虚拟机出现的沙雕问题 报错如下 error: The slave I/O thread stops because master and slave have...equal MySQL server UUIDs; these UUIDs must be different for replication to work 解决如下 mv auto.cnf auto.cnf.bak
报错信息: 在搭建Mysql主从架构过程中,由于从服务器是克隆的主服务器系统,导致主从Mysql uuid相同, Slave_IO无法启动,报错如下: Last_IO_Error: Fatal error...: The slave I/O thread stops because master and slave have equal MySQL server UUIDs; these UUIDs must...000c291a8b6b [root@localhost ~]# mysql -uroot -p123qqq...A ... mysql> show variables like '%server_uuid...localhost ~]# systemctl restart mysqld 3.从库重启slave进程,查看slave状态 [root@test2 ~]# mysql -uroot -p123qqq......A ... mysql> stop slave; mysql> start slave; mysql> show slave status\G; ***********************
,同步位置 mysql>change master to master_host='10.2.2.2',master_user='slave2',master_password='FjAfj6#xajot...#K%V',master_log_file='mysql-bin.000001',master_log_pos=154; 开启同步功能 mysql>start slave; 5、检查从数据库状态: mysql...可用这两项判断从服务器是否挂掉 mysql > SET GLOBAL server_id=2; 6、Fatal error: The slave I/O thread stops because master...and slave have equal MySQL server UUIDs; these UUIDs must be different for replication to work....my.cnf文件,报错 Fatal error: The slave I/O thread stops because master and slave have equal MySQL server
error: The slave I/O thread stops because master and slave have equal MySQL server UUIDs; these UUIDs...找到data文件夹下的auto.cnf文件,修改里面的uuid值,保证各个db的uuid不一样,重启db即可 2.3 Fatal error: The slave I/O thread stops because...master and slave have equal MySQL server ids; 找到my.cnf配置文件中的server_id,修改从库的server_id保证和复制结构中的其他db不一样...,重启db即可 三、扩展和原理 3.1 mysql 主从复制基本原理 mysql主从同步涉及三条线程:主节点:binary log dump thread,从节点:I/O thread ,SQL...slave在宕机重启后读取master.info文件,根据维护的master信息自动创建I/O thread 与master重新建立连接,并且创建SQL thread。 3.4.
在一个繁忙的master db server上,MySQL binlog日志文件增长速度很快,如果不定时清除,硬盘空间很快就会被充满。...设置自动清理MySQL binlog日志,配置my.cnf: expire_logs_days = 10 在运行时修改: show binary logs; show variables like...slave status\G查看从最新同步的binlog日志 使用purge binary logs to ‘mysql-bin.000**'删除目前正在同步的日志以外的所有日志。...---- Previous Fatal error: The slave I/O thread stops because master and slave...have equal MySQL server UUIDs; these UUIDs must be different for replication to work.
随着业务量的扩展、如果是单机部署的MySQL,会导致I/O频率过高。采用主从复制、读写分离可以提高数据库的可用性。...log; waiting for the slave I/O thread to update it Master_Retry_Count: 86400...故障案例:主从同步报错Fatal error: The slave I/O thread stops because master and slave have equal MySQL server UUIDS...slave2和slave1的主从关系时报错 Fatal error: The slave I/O thread stops because master and slave have equal MySQL...场景二:创建主从关系时copy了同样的my.cnf文件,报错 Fatal error: The slave I/O thread stops because master and slave have
image.png MySQL的复制架构允许获取事件的I/O线程和重放事件的SQL线程异步进行。但是在主库上并发执行的查询在从库中只能串行化执行,因为只有一个SQL线程来重放中继日志事件。...在从库运行的I/O线程会建立一个到主库的TCP/IP连接,因此需要创建一个具有响应权限的用户。从库I/O线程以该用户连接主库并获取二进制日志。...告诉从服务器如何连接到主服务器 image.png `show slave status \G` image.png `Slave_IO_State`当前复制I/O线程状态 `Slave_IO_Running...: No` I/O线程未启动 `Slave_SQL_Running: No` SQL重放线程未启动 启动复制start slave \G image.png 测试同步结果 在主库创建一个数据库之后...---- Fatal error: The slave I/O thread stops because master and slave have equal MySQL server UUIDs;
: No Last_IO_Errno: 1593 Last_IO_Error: Fatal error: The slave I/O thread...stops because master and slave have equal MySQL server UUIDs; these UUIDs must be different for replication...: 1 row in set (0.00 sec) 看到这里报出一个错误:Fatal error: The slave I/O thread stops because master and slave...have equal MySQL server UUIDs; these UUIDs must be different for replication to work....Slave_IO_State 显示正在等待从主库传递过来的事件,这意味着I/O线程已经读取了主库所有的事件。 到此,一个全新的复制就搞定了。
='mysql-bin.000001',master_log_pos=120; 8.开始同步 start slave 9.检查从服务器复制功能状态 SHOW SLAVE STATUS **如果二个从服务器是克隆主服务器的...Fatal error: The slave I/O thread stops because master and slave have equal MySQL server UUIDs; these...如果出现这种情况,需要将 /var/lib/mysql 文件下的生成uuid 的文件删除,然后再重新启动 mysql 服务,就会重新在生成一个 server-uuid,在下图2中 也 显示了这个重新生成的...show variables like '%server_id%'; show master status; STOP SLAVE; set GLOBAL sql_slave_skip_counter=...1; start slave; SHOW SLAVE STATUS; 下一篇: Centos7.4 安装MySQL 教程→
[root@DCGH-DB2 ~]# curl -C - -O https://repo.mysql.com//mysql57-community-release-el7-11.noarch.rpm [...: No Last_IO_Errno: 1593 Last_IO_Error: Fatal error: The slave I/O thread...stops because master and slave have equal MySQL server UUIDs; these UUIDs must be different for replication...Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id...: 致命报错来袭:Fatal error: The slave I/O thread stops because master and slave have equal MySQL server UUIDs
在實驗過程中,MASTER_LOG_FILE一直為空,後來才知道需要在my.cnf中加入一行:log-bin=mysql-bin e) 在從機(192.168.101.200)設置 Slave...’,MASTER_PORT=3306,MASTER_LOG_FILE='mysql-bin.000003',MASTER_LOG_POS=245; # 啟動 Start slave ‘Master201...’; # 顯示 Slave 狀態: Show slave ‘Master201’ status \G; # 查看 Slave_IO_Running: Slave_SQL_Running:...兩項須都為 Yes. f) 期間出現了錯誤: Last_IO_Error: Fatal error: The slave I/O thread stops because master...and slave have equal MySQL server ids; these ids must be different for replication to work (or the -
= 0 skip_name_resolve = 1 #max_connect_errors = 1000 max_connections = 2000 thread_cache_size=256 #thread_stack...=/data/mysql/plugin/ #plugin_load = "rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so..." #rpl_semi_sync_master_enabled = 1 #rpl_semi_sync_master_timeout = 5000 #rpl_semi_sync_slave_enabled...例如错误信息 : 2018-10-09T16:13:53.205115+08:00 11 [ERROR] [MY-013117] [Repl] Slave I/O for channel '': Fatal...error: The slave I/O thread stops because master and slave have equal MySQL server ids; these ids must
3.2 主库配置修改(Master) 路径:/etc/my.cnf 3.2.1 server_id配置 本环境中 server_id 是 1 MySQL 服务唯一标识 配置要求: server_id...任意配置,只要是数字即可 server_id Master 唯一标识数字必须小于 Slave 唯一标识数字. ?...注意:关闭防火墙或在防火墙中开放 3306 端口 3.3 从库配置修改(slave) 3.3.1 修改my.cnf的server_id 从库的 server_id要比主库中的server_id的值要大...注意:如果输出中有如下提示: Last_IO_Error: Fatal error: The slave I/O thread stops because master and slave have equal...MySQL server ids; these ids must be different for replication to work (or the –replicate-same-server-id
再一个,像我们的业务,业务量上来了,需要「做架构的扩展」,做多库的存储,「降低磁盘I/O访问的频率」,提高单个机器的I/O性能。...当master上的数据发生改变时,则将其改变写入二进制日志中; 「slave服务器会在一定时间间隔内对master二进制日志进行探测其是否发生改变」,如果发生改变,则开始一个I/O Thread请求master...,最后I/O Thread和SQL Thread将进入睡眠状态,等待下一次被唤醒。...; mysql> show slave status\G 查看slave状态时,可以看到有报错信息: Fatal error: The slave I/O thread stops because master...and slave have equal MySQL server UUIDs; these UUIDs must be different for replication to work.
mysql-master-bin 修改文件时还需要注意一点,mysql5.7之后,开启binlog时还需要同时指定server-id,否则会报错 2 配置从服务器 修改从服务器的配置文件/opt/mysql...', master_log_file='mysql-master-bin.000001', master_log_pos=154; 正确执行后启动Slave同步进程 mysql> start slave...: The slave I/O thread stops because master and slave have equal MySQL server UUIDs; these UUIDs must...be different for replication to work. 2、查看主从的server_id变量 master_mysql> show variables like 'server_id...waiting for the slave I/O thread to update it ###主库端查看自身的uuid master_mysql> show variables like 'server_uuid
~]# mysql -u root -p 并作如下修改: #关闭Slave mysql> stop slave; #设置连接主库信息 mysql> change master to master_host...master_log_pos=120; #开启Slave mysql> start slave; 注:上面的master_log_file是在配置Master的时候的File字段, master_log_pos...slave I/O thread to update it Master_Retry_Count: 86400 Master_Bind:...: No并且出现下面的错误 Last_IO_Error: Fatal error: The slave I/O thread stops because master and slave have equal...> reset slave;或 rest master; #删除MySQL-bin.004 mysql> PURGE MASTER LOGS TO 'MySQL-bin.004'; 此外,如果你在修改最大连接数时
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