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Introduction to Real time event processing, Storm and Trident

Introduction to Real time event processing, Storm and Trident

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  • 1. 1 Introduction to Storm Vinoth Kumar Kannan Vinoth.kannan@widas.de Introduction & Concepts
  • 2. Storm is a free and open source distributed realtime computation system 2 What is Storm Hadoop : Batch Processing :: Storm : Real-Time Processing Provides general primitive to do real time computation Scalable and Fault-tolerant Guaranteed Message Processing atleast once Can be used with any programming language
  • 3. 3 Comparison of Hadoop vs Storm
  • 4. 4 Concepts What does it do? Stream Processing Continuous Computation DRPC
  • 5. 5 Concepts What is a Stream ? Tuple Tuple Tuple Tuple Tuple Streams Unbounded sequence of tuples
  • 6. 6 Concepts What is a spout? Source of Stream is called Spout
  • 7. 7 Concepts What are Bolts? Bolts Processes input Stream and produces a new Stream Tuple Tuple Bolts
  • 8. 8 Concepts What are Bolts? Bolts • Functions • Filters • Aggregation • Joins • Database connections
  • 9. 9 Concepts What is a topology ? Network of Spouts and Bolts Topology
  • 10. 10 Concepts What are Grouping Used to decide which task in the subscribing bolt, the tuple is sent to
  • 11. 11 DRPC Distributed Remote Procedure Call DRPC parallelizes the computation of really intense functions on the fly using Storm The Storm topology takes in as input a stream of function arguments, and it emits an output stream of the results for each of those function calls. DRPC is not so much a feature of Storm as it is a pattern expressed from Storm's primitives of streams, spouts, bolts, and topologies.
  • 12. 12 DRPC Distributed Remote Procedure Call
  • 13. 13 Trident What is Trident? Trident is a high-level abstraction for doing realtime computing on top of Storm. Similar to Cascading or Pig in Hadoop Easier to build topologies Trident has joins, aggregations, grouping, functions, and filters Trident lets you express realtime computations in a natural way while still getting maximal performance.
  • 14. 14Vinoth.kannan@widas.de Thank You