January 2018
Intermediate to advanced
524 pages
13h 33m
English
Content preview from Internet of Things for Architects
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Lambda architecture
A Lambda architecture attempts to balance latency with throughput. Essentially, it mixes batch processing with stream processing. Similar to the general cloud topology of OpenStack or other cloud frameworks, Lambda ingests and stores to an immutable data repository. There are three layers of the topology:
- Batch layer: The batch layer is usually based on Hadoop clusters. The batch layer is significantly slower in processing than the stream layer. By sacrificing latency, it maximizes throughput and accuracy.
- Speed layer: This is the real-time in-memory data stream. The data can be erroneous, missing, and out of order. Apache Spark, as we have seen, is very good at providing a stream processing engine.
- Service layer: Service ...
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