Apache Heron is the successor to Apache Storm with backward compatibility. Apache Heron
provides more power in terms of throughput, latency, and processing capability over Apache Storm as use cases in Twitter started increasing, they felt of having new stream processing engine because of the following Storm bottleneck:
- Debugging: Twitter faced challenges in debugging due to code errors, hardware failures, and so on. The root cause was very difficult to detect because of no clear mapping of logical unit of computation to physical processing.
- Scale on Demand: Storm requires dedicated cluster resources, which needs separate hardware resources to run Storm topology. This restricts Storm from using cluster resources efficiently and limits it to scale on demand. This also limits its ability to share cluster resources across different processing engines...
