Logging Utility & Daemon

Read log data from Inputs [Tail Files, Stdin, Monit], perform transforms [Combine lines(multi-line-errors)] and output to [ElasticSearch, Stdout] Recognize lines with metrics and send to Monitoring [Graphite, InfluxDB, ..]

Why?

We had 2 needs: 1) to send data to Elasticsearch for viewing in http://kibana.org/ and 2) if possible, unify the Logging/Metrics systems data-collection-forwarding.

There are probably better tools out there for this but putting together the specific combination of: (LogStash format in Elasticsearch, Tail files, Read Kafka, Metrics read from log files) didn't happen, see alternates below.

Features

• Inputs
  • Stdin
  • Tail Logs (multiple files)
  • Monit (metrics via http)
  • Http (custom)
• Transforms:
  • Logstash http://logstash.net/
  • Colorizer for console
  • Concat into single line when needed (e.g. error stack trace)
  • Separate Metrics Log Lines from regular log lines
  • Custom plugins
• Log Line Outputs
  • Stdout (optional colorized)
  • Elasticsearch
• Metric Outputs
  • Graphite

Alternatives

• Go https://awesomeopensource.com/project/gliderlabs/logspout
• Go https://awesomeopensource.com/project/onemorecloud/dendrite
• Go https://awesomeopensource.com/project/ryandotsmith/l2met
• Go http://blog.mozilla.org/services/2013/04/30/introducing-heka/
• Ruby, http://fluentd.org/
• JVM, http://logstash.org
• Go https://awesomeopensource.com/project/cloudfoundry/loggregator

Usage

loges --source=monit,tail --filter=stdfiles --out=elasticsearch --metrics=graphite \
   /path/to/my/file \
   /path/to/another/file