Spark's Role in the Big Data Ecosystem (Spark Summit 2014)
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This document summarizes the growth and development of the Spark project. It notes that Spark has grown significantly over the past year in terms of contributors, companies involved, and lines of code. Spark is now one of the most active projects within the Apache Hadoop ecosystem. The document outlines major new additions to Spark including Spark SQL for structured data, MLlib for machine learning algorithms, and Java 8 APIs. It discusses the vision for Spark as a unified platform and standard library for big data applications.
Spark's Role in the Big Data Ecosystem (Spark Summit 2014)
- 1. Spark’s Role in the Big Data Ecosystem Matei Zaharia
- 2. An Exciting Year for Spark Very fast community growth 1.0 release in May 7+ distributors, 20+ apps
- 3. Project Activity June 2013 June 2014 total contributors 68 255 companies contributing 17 50 total lines" of code 63,000 175,000
- 4. Project Activity June 2013 June 2014 total contributors 68 255 companies contributing 17 50 total lines" of code 63,000 175,000
- 5. Compared to Other Projects MapReduce YARN HDFS Storm Spark 1400 1200 1000 800 600 400 200 0 MapReduce YARN HDFS Storm Spark 300000 250000 200000 150000 100000 50000 0 Commits Lines of Code Changed Activity in past 6 months
- 6. Compared to Other Projects MapReduce YARN HDFS Storm Spark 1400 1200 1000 800 600 400 200 0 MapReduce YARN HDFS Storm Spark 300000 250000 200000 150000 100000 50000 0 Commits Lines of Code Changed Spark is now the most active project in the" Hadoop ecosystem Activity in past 6 months
- 7. Compared to Other Projects Spark is one of top 3 most active projects at Apache More active than “general” data processing projects like NumPy, matplotlib, SciKit-Learn
- 8. Continuing Growth source: ohloh.net Contributors per month to Spark
- 10. Last Summit Last Summit we said we’d focus on two things: • Standard libraries • Enterprise features New libraries: Spark SQL, MLlib (machine learning), GraphX (graph processing) Enterprise features: security, monitoring, HA
- 11. Spark SQL Enables loading & querying structured data in Spark From Hive: c = HiveContext(sc)! rows = c.sql(“select text, year from hivetable”)! rows.filter(lambda r: r.year > 2013).collect()! {“text”: “hi”, “user”: { “name”: “matei”, “id”: 123 }} From JSON: c.jsonFile(“tweets.json”).registerAsTable(“tweets”)! c.sql(“select text, user.name from tweets”)! tweets.json
- 12. Spark SQL Integrates closely with Spark’s language APIs c.registerFunction(“hasSpark”, lambda text: “Spark” in text)! c.sql(“select * from tweets where hasSpark(text)”)! Uniform interface for data access 44 contributors in past year Hive Parquet JSON Cassan-dra … SQL Python Scala Java
- 13. Machine Learning Library (MLlib) Standard library of machine learning algorithms Now includes 15+ algorithms • New in 1.0: decision trees, SVD, PCA, L-BFGS • In development: non-negative matrix factorization, LDA, Lanczos, multiclass trees, ADMM points = context.sql(“select latitude, longitude from tweets”)! model = KMeans.train(points, 10)! ! 40 contributors in past year
- 14. Java 8 API Enables concise programming in Java similar to Scala and Python JavaRDD<String> lines = sc.textFile("data.txt");! JavaRDD<Integer> lineLengths = lines.map(s -> s.length());! int totalLength = lineLengths.reduce((a, b) -> a + b);!
- 15. What is our vision for Spark?
- 16. 1. Unified Platform for Big Data Apps Batch Interactive Streaming Hadoop Cassandra Mesos … Uniform API for diverse workloads over diverse storage systems and runtimes … Cloud Providers …
- 17. Why a Platform Matters Good for developers: one system to learn Good for users: take apps anywhere Good for distributors: more applications
- 18. 2. Standard Library for Big Data Big data apps lack libraries" of common algorithms Spark’s generality + support" for multiple languages make it" suitable to offer this Python Scala Java R SQL ML graph Core … Much of future activity will be in these libraries
- 19. Databricks & Spark At Databricks, we are working to keep Spark 100% open source and compatible across vendors All our work on Spark is at Apache Check out project-specific talks to see what’s next!
- 20. Thank You and Enjoy Spark Summit!