Top 4 complex-event-processing Open-Source Projects

Siddhi

1 1,493 6.7 Java

Stream Processing and Complex Event Processing Engine
kaskada

3 339 9.6 Rust

Modern, open-source event-processing

Project mention: Need feedback from the folks here on efficiency for streaming a parquet file | /r/dataengineering | 2023-06-03

You might try using a query engine for this - duckdb is really great for SQL analysis and I’m part of the team behind a tool called Kaskada that’s focused on time-based analysis.

InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
RTEC

1 78 7.4 Prolog

RTEC is an Event Calculus implementation optimised for stream reasoning
Phenesthe

1 19 4.2 Prolog

'Phenesthe' (orig. φαίνεσθαι) is a system for the representation and processing of instantaneous and durative temporal phenomena.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).