OpenTSDB is a set of tools that allow you to store and retrieve time series data. It uses HBase for data storage and retrieval, but isolates you, the user, from HBase completely. Thus, you don't have to know or care about HBase (other than administer it). To the user, it is a very simple tool, which asks them to send the time series data and then allows all kinds of displays.
We will use OpenTSDB, as promised, for two purposes:
The following diagram shows the OpenTSDB architecture:
Let's first take a look ...