是否有可用于在Rails 3.2的DB中存储用户日志的gem? [英]Is there any gem which can be used to store user log in DB for rails 3.2?
如何将请求和用户信息(如用户名)自动记录到日志文件中以跟踪liferay中的用户活动? [英]How to log requests and user info like username automatically into log file to track user activity in liferay?
应该在分布式系统中使用哪些Appender? 如何配置? [英]Which Appenders should be used in distributed system? How to configure them?
从相同jar文件的多个实例登录到一个数据库,但使用log4j2跟踪哪个实例记录了什么 [英]log to one database from multiple instaces of identical jar-file but keep track of which instance logged what using log4j2