KairosDB vs PipelineDB: What are the differences?
Developers describe KairosDB as "Fast Time Series Database on Cassandra". KairosDB is a fast distributed scalable time series database written on top of Cassandra. On the other hand, PipelineDB is detailed as "The Streaming SQL Database". PipelineDB is an open-source relational database that runs SQL queries continuously on streams, incrementally storing results in tables.
KairosDB and PipelineDB can be categorized as "Databases" tools.
KairosDB is an open source tool with 1.52K GitHub stars and 315 GitHub forks. Here's a link to KairosDB's open source repository on GitHub.