Hybrid form of batch- and real-time stream-processing to process massive of records by maintaining balance throughput,latency & fault-tolerance.
Three Layer of Lambda :
- batch layer : 1. managing the master dataset 2. pre-compute the batch views
- serving layer : 1. indexes the batch views 2. to query Indexed data in low-latency mode on adopt basis
- speed layer : 1. deals with recent data only 2. compensates for the high latency of updates to the serving layer
Use Cases :
- Weather prediction & analytics system
- News recommendation system
- aerospace tracking System