Apache Storm

Apache Storm is an open-source distributed stream-processing system.

What It Is Good For

• Real-time analytics.
• Continuous computation.
• Distributed RPC.
• Event-driven ETL pipelines.

Core Ideas

• A topology consumes streams of data.
• Spouts read data from external sources.
• Bolts process or transform the stream.

Practical Notes

• Use Storm when low-latency stream processing is the primary requirement.
• Keep the topology simple enough to reason about failure handling.