mysql用户上次登录/访问日期时间

Question

在审计任务中，我将删除几个 mysql 用户。在删除之前我想检查一下，这些用户上次访问数据库服务器是什么时候。我想知道我们是否将这些信息存储在information_schema或mysql数据库中。如果不是，我们怎么能做到这一点？

Answer 1

You can look in the general log for any unsuccessful connection attempts to MySQL however out-of-the-box, MySQL typically does not log successful DB connections. This could become a very, very large log and that activity may quickly overwhelm the I/O subsystem and cause problems for the DB.

You can setup this sort of logging however it will result in quite a LOT of data! have a look at this post over in the DBA Exchange: https://dba.stackexchange.com/questions/668/audit-logins-on-mysql-database

如果您使用的是您自己的数据库服务器，您应该能够做到这一点。如果你有一个 DBaaS 类型的东西，多租户数据库系统会在记录每个连接时死亡。这可能不可能？

您还可以从 Percona 博客中找到在 MySQL 中启用用户跟踪的一些步骤：https ://www.percona.com/blog/2012/12/28/auditing-login-attempts-in-mysql/