Heroku's logging infrastructure – the Logplex system

The Logplex system forms the foundation of the Heroku logging infrastructure. It collates and distributes log messages from the application and other parts of the Heroku infrastructure. These entries are made available through a public API and the Heroku command-line tool. Due to the distributed nature of the Heroku platform, trying to manually access log messages across different application components and making sense out of those is practically infeasible. You cannot get a unified view of the entire system behavior if you collate these messages manually and try to troubleshoot problems. The Logplex integrated logging system provides an alternative in this case.

The Logplex system acts like ...

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