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https://www.datadoghq.com/blog/monitoring-mysql-performance-metrics/

https://www.datadoghq.com/blog/monitoring-rds-mysql-performance-metrics/https://www.datadoghq.com/blog/how-to-collect-rds-mysql-metrics/https://www.datadoghq.com/blog/mysql-monitoring-wi

mysql status

To ensure transaction serializability, the server must not permit one session to perform a data definition language (DDL) statement on a table that is used in an uncompleted explicitly or implicitly st

摘自阿里 rdsRDS MySQL InnoDB 锁等待和锁等待超时的处理 更新时间：2017-08-10 13:51:23 分享： 1. Innodb 引擎表行锁等待和等待超时发生的场景2.Innodb 引擎行锁等待情况的处理2.1 Innodb 行锁等待超时参数 innodb_lock_wait_timeout2.2 大量行锁等待和行锁等待超时的处理Innodb 引擎表行锁等待和等待超

MySQL databases are sharded for the best of reasons. At some point the MySQL workload needs to scale, and scaling RDBMSs is hard (Clustrix’s unofficial motto!). Adding read scale to RDBMSs is straightf