#!/bin/sh#/home/mysql_bakup.sh#chmod +x /home/mysql_bakup.sh#vi /etc/crontab#0 0 * * * root /home/mysql_bakup.sh#service crond restart#请根据实际情况修改#-----
用top,ps等查出占用高的mysql进程号用pidstat查询出哪个线程占的高pidstat -t -p 9834 1使用sql查询,看对应的线程对应的sqlselect * from performance_schema.threads where THREAD_OS_ID=15904\G;
centos7安装mysql5.7