Without the continuous bitter cold, there can be no fragrant plum blossom
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说明 InnoDB log大小对于InnoDB性能影响很大，而太大、太小都会造成不小的影响。太大：会拉长实例恢复时间，还可能会造成更多数据的丢失。太小：造成日志切换太频率，造成写入I/O压力。 下面介绍一下如何根据自己的环境计算一个合适的日志大小。 步骤 是通过show engine innodb status命令中Log sequence number前后的差值来大概确认该段时间内...
2019-06-14 10:43 3546 0
1.TOMCAT日志报错信息 错误信息如下： ; uncategorized SQLException for SQL []; SQL state [HY000]; error code [1366]; Incorrect string value: '/xF0/x9F/x98/x82' for column 'CONTENT' at row 1; nested exception is java.sql.SQLException: Incorrect string value: '/xF0/x9F/x98/x82' for column 'CONTENT' at row 1} ### Er
2018-07-19 18:31 2903 0
1.tomcat日志错误信息 Thu Jul 19 18:01:03 CST 2018 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existin
2018-07-19 18:14 2984 0
1 NDB Cluster说明 MySQL NDB Cluster is a high-availability, high-redundancy version of MySQL adapted for the distributed computing environment. Recent NDB Cluster release series use version 7 of the NDB storage engine (also known as NDBCLUSTER) to enable running several computers with MySQL servers a
2017-12-15 21:55 3415 0
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