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：
首先停止从库同步:
mysql> stop slave;
主库中关闭当前的二进制日志文件并创建一个新文件，新的二进制日志文件的名字在当前的二进制文件的编号上加1.
mysql> flush logs;
查看主库状态，主要查......
Given two non-negative integers num1 and num2 represented as strings, return the product of num1 and num2, also represented as a string.
Note: You must not use any built-in BigInteger library or convert the inputs to integer directly.【The sadest things which I can found the fastest soultion in leetcode break this rule.】
https://leetcode.com/problems/multiply-strings/
Solut......
