logfmt — brandur.org
If you’ve ever run an app on Heroku, you may have come across log messages produced by the Heroku router and wondered about their unusual formatting. Each line consists of a single level of key/value pairs which are densely packed together compared to other well-known structured formats like JSON. For example: at=info method=GET path=/ host=mutelight.org fwd="124.133.52.161" dyno=web.2 connect=4ms
Fast and flexible observability with canonical log lines
Logging is one of the oldest and most ubiquitous patterns in computing. Key to gaining insight into problems ranging from basic failures in test environments to the most tangled problems in production, it’s common practice across all software stacks and all types of infrastructure, and has been for decades. Although logs are powerful and flexible, their sheer volume often makes it impractical to e
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