InfluxDB is a time series, metrics, and analytics database. It’s written in Go and has no external dependencies. That means once you install it there’s nothing else to manage (such as Redis, ZooKeeper, Cassandra, HBase, or anything else). InfluxDB is targeted at use cases for DevOps, metrics, sensor data, and real-time analytics. It arose from our need for a database like this on more than a few previous products we’ve built. You can read more about our journey from SaaS application to open source time series database.

UnQL means Unstructured Query Language. It's an open query language for JSON, semi-structured and document databases.