Logstash is an open-source tool for collecting, parsing and storing logs for future use. Centralized logging can be very useful when attempting to identify problems with your servers or applications, as it allows you to search through all of your logs in a single place. It is also useful because it allows you to identify issues that span multiple servers by correlating their logs during a specific time frame.
What Logstash has to offer
The ingestion workhorse for Elasticsearch and more
Pluggable pipeline architecture
Mix, match, and orchestrate different inputs, filters, and outputs to play in pipeline harmony
Extensive plugin ready
Over 200 plugins available, plus the flexibility of creating and contributing your own