Akka, Spark or Kafka? Selecting The Right Streaming Engine For the Job
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The document discusses streaming data architectures and streaming engines. It provides an overview of classic batch architectures like Hadoop and Spark and new streaming architectures using technologies like Kafka, Flink and Beam. It then examines different streaming engines, considering factors like latency, volume, data processing needs, and preferred application architecture. Key streaming engines highlighted include Apache Beam, Flink, Spark, Akka Streams and Kafka Streams.
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Akka, Spark or Kafka? Selecting The Right Streaming Engine For the Job
- 2. Check out these resources: Dean’s book Webinars etc. Fast Data Architectures for Streaming Applications Getting Answers Now from Data Sets that Never End By Dean Wampler, Ph. D., VP of Fast Data Engineering 2 lightbend.com/products/fast-data-platform
- 3. Streaming Engines in Context…
- 10. New Streaming, “Fast Data” Architecture (but it also supports batch)
- 11. Mesos, Kubernetes, YARN, … Cloud, on premise, … Logs Sockets REST ZooKeeper Cluster ZK Low Latency and Mini-batch Spark Streaming Batch Spark … Low Latency Flink Ka9a Streams Akka Streams Beam … Persistence S3 HDFS DiskDiskDisk SQL/ NoSQL Search 1 5 6 3 11 KaFa Cluster Ka9a Microservices RP Go Node.js … 2 4 7 8 9 10 Beam
- 12. Mesos, Kubernetes, YARN, … Cloud, on premise, … Logs Sockets REST ZooKeeper Cluster ZK Low Latency and Mini-batch Spark Streaming Batch Spark … Low Latency Flink Ka9a Streams Akka Streams Beam … Persistence S3 HDFS DiskDiskDisk SQL/ NoSQL Search 1 5 6 3 11 KaFa Cluster Ka9a Microservices RP Go Node.js … 2 4 7 8 9 10 Beam
- 13. Mesos, Kubernetes, YARN, … Cloud, on premise, … Logs Sockets REST ZooKeeper Cluster ZK Low Latency and Mini-batch Spark Streaming Batch Spark … Low Latency Flink Ka9a Streams Akka Streams Beam … Persistence S3 HDFS DiskDiskDisk SQL/ NoSQL Search 1 5 6 3 11 KaFa Cluster Ka9a Microservices RP Go Node.js … 2 4 7 8 9 10 Beam
- 14. Mesos, Kubernetes, YARN, … Cloud, on premise, … Logs Sockets REST ZooKeeper Cluster ZK Low Latency and Mini-batch Spark Streaming Batch Spark … Low Latency Flink Ka9a Streams Akka Streams Beam … Persistence S3 HDFS DiskDiskDisk SQL/ NoSQL Search 1 5 6 3 11 KaFa Cluster Ka9a Microservices RP Go Node.js … 2 4 7 8 9 10 Beam
- 15. Mesos, Kubernetes, YARN, … Cloud, on premise, … Logs Sockets REST ZooKeeper Cluster ZK Low Latency and Mini-batch Spark Streaming Batch Spark … Low Latency Flink Ka9a Streams Akka Streams Beam … Persistence S3 HDFS DiskDiskDisk SQL/ NoSQL Search 1 5 6 3 11 KaFa Cluster Ka9a Microservices RP Go Node.js … 2 4 7 8 9 10 Beam
- 16. • Why Kafka? Service 1 Log & Other Files Internet Services Service 2 Service 3 Services Services N * M links ConsumersProducers Before: Service 1 Log & Other Files Internet Services Service 2 Service 3 Services Services N + M links ConsumersProducers After:
- 17. Mesos, Kubernetes, YARN, … Cloud, on premise, … Logs Sockets REST ZooKeeper Cluster ZK Low Latency and Mini-batch Spark Streaming Batch Spark … Low Latency Flink Ka9a Streams Akka Streams Beam … Persistence S3 HDFS DiskDiskDisk SQL/ NoSQL Search 1 5 6 3 11 KaFa Cluster Ka9a Microservices RP Go Node.js … 2 4 7 8 9 10 Beam
- 18. Mesos, Kubernetes, YARN, … Cloud, on premise, … Logs Sockets REST ZooKeeper Cluster ZK Low Latency and Mini-batch Spark Streaming Batch Spark … Low Latency Flink Ka9a Streams Akka Streams Beam … Persistence S3 HDFS DiskDiskDisk SQL/ NoSQL Search 1 5 6 3 11 KaFa Cluster Ka9a Microservices RP Go Node.js … 2 4 7 8 9 10 Beam
- 19. Mesos, Kubernetes, YARN, … Cloud, on premise, … Logs Sockets REST ZooKeeper Cluster ZK Low Latency and Mini-batch Spark Streaming Batch Spark … Low Latency Flink Ka9a Streams Akka Streams Beam … Persistence S3 HDFS DiskDiskDisk SQL/ NoSQL Search 1 5 6 3 11 KaFa Cluster Ka9a Microservices RP Go Node.js … 2 4 7 8 9 10 Beam
- 22. • Low latency? How low? • High volume? How high? • Which kinds of data processing, analytics? • Process data in bulk or individually? •Bulk processing of records? •Individual processing of events? • Preferred application architecture?
- 23. • Low latency? How low? www.spacex.com/news
- 24. • Low latency? How low? • Real real time? pico- to microseconds www.spacex.com/news
- 25. • Low latency? How low? • < 100 microseconds? tradinghub.co/watch-list-for-mar-26th-2015/ www.usa.philips.com/
- 26. • Low latency? How low? • < 10 milliseconds? money.cnn.com/2017/05/12/pf/credit-card-mistakes/index.html
- 27. • Low latency? How low? • < 100s milliseconds? github.com/keen/dashboards coursera.org/learn/machine-learning
- 28. • Low latency? How low? • < 1 second to minutes ETL Model Training storage Data Model Training Model Serving Other Logic Logs Ka'a Raw Logs Topic Parsed Logs Topic Ka'a Streams Job
- 29. • Low latency? How low? • > 1 minute? • Use short batch jobs
- 30. • High volume? How high?
- 31. • High volume? How high? • < 1oK -100K per second? drdobbs.com/web-development/ soa-web-services-and-restful-systems/199902676
- 32. • High volume? How high? • > 1M per second? https://store.nest.com/product/thermostat/
- 33. • Which kinds of data processing, analytics? • SQL? SELECT COUNT(*) FROM my-iot-data GROUP BY zip-code val input = spark.read. format(“parquet”). stream(“my-iot-data”) input.groupBy(“zip-code”). count()
- 34. • Which kinds of data processing, analytics? • “Dataflow”? val sc = new SparkContext("local[*]", "Inverted Idx") sc.textFile("data/crawl") .map { line => val Array(path, text) = line.split(“t”,2); (path, text } flatMap { case (path, text) => text.split(“”"W+""").map((_, path)) } map { case (w, p) => ((w, p), 1) } reduceByKey { case (n1, n2) => n1 + n2 } map {
- 35. • Which kinds of data processing, analytics? • ETL? ETL Logs Ka'a Raw Logs Topic Parsed Logs Topic Ka'a Streams Job
- 36. • Which kinds of data processing, analytics? • Train and serve ML models? storage Data Model Training Model Serving Other Logic
- 37. • Process data in bulk or individually? • Individual events (i.e., CEP). • In bulk records (i.e., each datum’s identity unimportant). Microservice Microservice Microservice Microservice Service Actor 1 Event Event Event Event Event Event Router Actor Service Actor 2 … SA13 SA11 SA12 SA23 SA21 SA22 SELECT COUNT(*) FROM my-iot-data GROUP BY zip-code
- 38. • Preferred application architecture • Streaming library in an app? • Distributed services running your job? Mini-batch Spark Streaming Low Latency Flink Ka0a Streams Akka Streams Beam … Mini-batch Spark Streaming Low Latency Flink Ka0a Streams Akka Streams Beam …
- 39. Best of Breed Streaming Engines
- 40. Low Latency and Mini-batch Spark Streaming Batch Spark … Low Latency Flink Ka9a Streams Akka Streams Beam … Persistence S3 HDFS DiskDiskDisk SQL/ NoSQL Search 1 5 6 KaFa Cluster Ka9a 2 4 7 8 9 10 Beam
- 41. Low Latency and Mini-batch Spark Streaming Batch Spark … Low Latency Flink Ka9a Streams Akka Streams Beam … Persistence S3 HDFS DiskDiskDisk SQL/ NoSQL Search 1 5 6 KaFa Cluster Ka9a 2 4 7 8 9 10 Beam • Apache Beam • (Formerly Google Dataflow) • Define your flows; run with Flink, Spark, etc. • Beam is defining the state of the art for streaming semantics
- 43. Low Latency and Mini-batch Spark Streaming Batch Spark … Low Latency Flink Ka9a Streams Akka Streams Beam … Persistence S3 HDFS DiskDiskDisk SQL/ NoSQL Search 1 5 6 KaFa Cluster Ka9a 2 4 7 8 9 10 Beam • Apache Flink • Low-latency streaming • Best Beam runner • SQL, ML, etc.
- 44. Low Latency and Mini-batch Spark Streaming Batch Spark … Low Latency Flink Ka9a Streams Akka Streams Beam … Persistence S3 HDFS DiskDiskDisk SQL/ NoSQL Search 1 5 6 KaFa Cluster Ka9a 2 4 7 8 9 10 Beam • Apache Spark • Best known; large community • Batch, mini-batch, and new low-latency streaming • SQL, ML, etc.
- 45. Low Latency and Mini-batch Spark Streaming Batch Spark … Low Latency Flink Ka9a Streams Akka Streams Beam … Persistence S3 HDFS DiskDiskDisk SQL/ NoSQL Search 1 5 6 KaFa Cluster Ka9a 2 4 7 8 9 10 Beam • Akka Streams • Low-latency streaming • Rich dataflow language • Rich APIs for microservices, data sources and sinks • Excellent for model serving
- 46. Low Latency and Mini-batch Spark Streaming Batch Spark … Low Latency Flink Ka9a Streams Akka Streams Beam … Persistence S3 HDFS DiskDiskDisk SQL/ NoSQL Search 1 5 6 KaFa Cluster Ka9a 2 4 7 8 9 10 Beam • Kafka Streams • Read, write Kafka topics • Stream and Table abstractions • SQL on streams
- 47. Low Latency and Mini-batch Spark Streaming Batch Spark … Low Latency Flink Ka9a Streams Akka Streams Beam … Persistence S3 HDFS DiskDiskDisk SQL/ NoSQL Search 1 5 6 KaFa Cluster Ka9a 2 4 7 8 9 10 Beam • Spark or Flink? • Best for massive data sets • Rich analytics • Akka Streams or Kafka Streams • Best for microservice integration • Wider flexibility
- 48. Check out these resources: Dean’s book Webinars etc. Fast Data Architectures for Streaming Applications Getting Answers Now from Data Sets that Never End By Dean Wampler, Ph. D., VP of Fast Data Engineering 48 lightbend.com/products/fast-data-platform
- 49. For more information on Lightbend Fast Data Platform: lightbend.com/fast-data-platform