Chapter 4. Creating robust topologies
This chapter covers
- Guaranteed message processing
- Fault tolerance
- Replay semantics
So far, we’ve defined many of Storm’s core concepts. Along the way, we’ve implemented two separate topologies, each of which runs in a local cluster. This chapter is no different in that we’ll be designing and implementing another topology for a new scenario. But the problem we’re solving has stricter requirements for guaranteeing tuples are processed and fault tolerance is maintained. To help us meet these requirements, we’ll introduce some new concepts related to reliability and failure. You’ll learn about the tools Storm gives us to handle failure, and we’ll also dive into the various types of guarantees we can make ...
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