When running InnoDB you are able to dig into the engine internals, look at various gauges and counters, see past deadlocks and the list of all open transactions. This is in your reach with one simple command - SHOW ENGINE INNODB STATUS . On most occa…
首先,让我们来了解一下 SHOW INNODB STATUS 输出的基础,它打印了很多关于 InnoDB 内部性能相关的计数器.统计.事务处理信息等.在 MySQL 5 中,InnoDB 的性能统计结果也在 SHOW STATUS 结果中显示了.大部分和 SHOW INNODB STATUS 的其他信息相同,在旧版本中还没有这个功能. SHOW INNODB STATUS 中的很多统计值都是每秒更新一次的,如果你打算利用这些统计值的话,那么最好统计一段时间内的结果.InnoDB 首先输出以下信息…
InnoDB has a good source of information about its status which can be requested every time you need to know “what’s up” with that in your environment. The SHOW ENGINE INNODB STATUS will inform you the last x seconds of its operation, leveraging syste…
When InnoDB appears hung, I know the natural reaction is to check SHOW ENGINE INNODB STATUS. In fact, it’s the first thing I check when InnoDB tables are involved. However, I just want to iterate how valuable SHOW FULL PROCESSLIST and/or mysqladmin d…
