问题
mysql最新网络吞吐速度慢，到后台查看日志报错：
Version: '5.5.65-MariaDB' socket: '/var/lib/mysql/mysql.sock' port: 3306 MariaDB Server
201023 14:19:01 InnoDB: ERROR: the age of the last checkpoint is 9444086,
InnoDB: which exceeds the log group capacity 9433498.
InnoDB: If you are using big BLOB or TEXT rows, you must set the
InnoDB: combined size of log files at least 10 times bigger than the
InnoDB: largest such row.
201023 14:19:36 InnoDB: ERROR: the age of the last checkpoint is 9444401,
InnoDB: which exceeds the log group capacity 9433498.
InnoDB: If you are using big BLOB or TEXT rows, you must set the
InnoDB: combined size of log files at least 10 times bigger than the
InnoDB: largest such row.
201023 14:20:01 InnoDB: ERROR: the age of the last checkpoint is 9444693,
InnoDB: which exceeds the log group capacity 9433498.
InnoDB: If you are using big BLOB or TEXT rows, you must set the
InnoDB: combined size of log files at least 10 times bigger than the
InnoDB: largest such row.
201023 14:20:21 InnoDB: ERROR: the age of the last checkpoint is 9444414,
InnoDB: which exceeds the log group capacity 9433498.
InnoDB: If you are using big BLOB or TEXT rows, you must set the
InnoDB: combined size of log files at least 10
优化方法
1、在[mysqld]节点添加：
innodb_log_buffer_size = 32M
innodb_buffer_pool_size = 3G
innodb_log_file_size = 768M
2、停止服务
systemctl stop mariadb.service
2、删除日志
#切换到数据目录
cd /data/mysql
rm -rf rm
3、启动
systemctl start mariadb.service
参考：https://dba.stackexchange.com/questions/16510/mysql-innodb-innodb-error-the-age-of-the-last-checkpoint-is-innodb-which-exc
