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从库报这个错误:Got fatal error 1236 from master when reading data from binary log: 'Could not find first log file name in binary log index file' Got fatal error 1236 from master when reading data from binary log: 'could not find next log' 可以 stop slave; res…
年后回来查看mysql运行状况与备份情况,登录mysql从库查看主从同步状态 mysql> show slave status\G; *************************** . row *************************** Slave_IO_State: Master_Host: 101.200.*.* Master_User: backup Master_Port: Connect_Retry: Master_Log_File: master-bin. Rea…
setup slave from backup i got error Got fatal error 1236 from master when reading data from binary log: 'Could not find first log file name in binary log index file' MASTER MariaDB [(none)]> SHOW BINLOG EVENTS IN 'mysqld-bin.140180' FROM 101070557 LI…
When I use binary and out mode to open a exist file, and to modify the 4th and 8th byte data to 0x78, I found that the whole file will be rewrite, like below: #include <fstream> #include <iostream> using namespace std; int main(int argc, char…
1:停止slave服务器的主从同步 stop slave; 2:对Master数据库加锁 flush tables with read lock; 3:备份Master上的数据 mysqldump -uroot -p -B db1 db2 >bak.sql 4:重置Master服务 reset master; reset master 将删除所有的二进制日志,创建一个名为  ****.000001的空日志文件.reset master 并不会影响slave服务器的工作状态.盲目执行这个命令有可能…
首先遇到这个是因为binlog位置索引处的问题,不要reset slave: reset slave会将主从同步的文件以及位置恢复到初始状态,一开始没有数据还好,有数据的话,相当于重新开始同步,可能会出现一些问题: 一般做主从同步,都是要求以后的数据实现主从同步,而对于旧的数据完全可以使用数据库同步工具先将数据库同步,完了再进行主从同步: 好了遇到上面的问题,正确做法是: 1.打开主服务器,进入mysql 2.执行flush logs://这时主服务器会重新创建一个binlog文件: 3.在主服…
reset slave会清除从库的所有复制信息.一般应用场景:如切换为不同的Master, 主从重做等: 1. 命令在slave上执行,执行前一定要stop slave. 2. 执行reset slave后,会清除复制相关的所有信息,包括:master.info, relay-log.info, 及无条件删除所有的中继日志(relay logs). 注意是无条件的,也就是不管理你Slave SQL线程是否把所有的relay log重放完了. 3. 注意,stop slave后,先保存show s…
数据库主从出错: Slave_IO_Running: No 一方面原因是因为网络通信的问题也有可能是日志读取错误的问题.以下是日志出错问题的解决方案: Last_IO_Error: Got fatal error 1236 from master when reading data from binary log: 'Could not find first log file name in binary log index file' 解决办法:从机器停止slave mysql> slave…
Design an algorithm and write code to serialize and deserialize a binary tree. Writing the tree to a file is called 'serialization' and reading back from the file to reconstruct the exact same binary tree is 'deserialization'. There is no limit of ho…
Design an algorithm and write code to serialize and deserialize a binary tree. Writing the tree to a file is called 'serialization' and reading back from the file to reconstruct the exact same binary tree is 'deserialization'. There is no limit of ho…