在高并发网站架构中,MySQL数据库主从同步是不可或缺的,不过经常会发生由于网络原因或者操作错误,MySQL主从经常会出现不同步的情况,那么如何监控MySQL主从同步,也变成检测网站正常运行的重要环节. MySQL同步功能由3个线程(master上1个,slave上2个)来实现,简单的说就是:master发送日志一个,slave接收日志一个,slave运行日志一个. 首先,我们解释一下 show slave status 中重要的几个参数: Slave_IO_Running: I/O线程是否被
16312:20170527:095215.225 database is down: reconnecting in 10 seconds 16312:20170527:095225.225 [Z3001] connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through so # netstat -lnutp Active Internet connections (only
1.禁用安装防护[root@mysql213 ~]# vi /etc/selinux/config #关闭安装 SELINUX=disabled 2.授权zabbix监控账号 mysql -uroot -p123456 mysql> grant usage on *.* to zabbix@127.0.0.1 identified by '123456'; mysql> grant usage on *.* to zabbix@'%' identified by '123456';#不安全但是
转载自:http://www.ttlsa.com/mysql/install-mysql5_6/ 启动MySQL并制定套接字 mysql -u user -ppassword -S 指定socket路径 MySQL密码丢失 service mysql stop mysqld_safe --skip-grant-tables mysql use mysql update user set password=password("12345") where user="root&q