monkeytail

tail variant designed for web developers monitoring logfiles

MonkeyTail allows a user to tail multiple files on both local and remote hosts and clearly marks inactivity by putting 5 newlines in the output whenever a pause in output over 3 seconds is detected. MonkeyTail is implemented a fairly simple wrapper script around standard tail, ssh, and sudo.

mtail

Extract monitoring data from logs for collection in a timeseries database

Mtail is a tool for extracting metrics from application logs to be exported into a timeseries database or timeseries calculator for alerting and dashboarding. It aims to fill a niche between applications that do not export their own internal state, and existing monitoring systems, without patching those applications or rewriting the same framework for custom extraction glue code. Metrics are exported for scraping by a collector as JSON or Prometheus format over HTTP, or can be periodically sent to a collectd, StatsD, or Graphite collector socket.