What are some alternatives?
logstash - logstash is a tool for managing events and logs.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Raygun - Raygun gives developers meaningful insights into problems affecting their applications. Discover issues - Understand the problem - Fix things faster.
Kafka - Apache Kafka is publish-subscribe messaging rethought as a distributed commit log.
Graylog - Graylog is an open source log management platform for collecting, indexing, and analyzing both structured and unstructured data.
Flume - Flume is an elegant Instagram client for the desktop.