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Powering a Startup with Apache Spark with Kevin Kim
The document discusses the evolution of a startup called 'Between', led by Kevin Kim, detailing its growth from 100 beta users in 2011 to 20 million downloads by 2016. It highlights the team's use of Apache Spark for big data processing, the infrastructure they have built, and their current hiring needs for data analysts and machine learning experts. The document also emphasizes the importance of data analysis for product development and marketing strategies, along with the ongoing challenges and future plans for expanding operations.
Powering a Startup with Apache Spark with Kevin Kim
- 1. Kevin, Between (VCNC) kevin@between.us Poweringa Startup with Apache Spark #EUent8
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- 5. 2011: 100 betausers 2012: 1.0 release, 2M downloads 2013: 5M downloads, global launches 2014: Between 2.0, 10M downloads 2015: Between 3.0 2016: Starts monetization, 20M downloads 2017: Global expansion, new business, team of 60
- 6. put your #assignedhashtaghere by setting the footer in view-header/footer Kevin Kim • Came from Seoul, South Korea • Co-founder, used to be a product developer • Now a data analyst, engineer, team leader • Founder of Korea Spark User Group • Committer and PMC member of Apache Zeppelin 6
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- 8. Intro to BetweenData Team • Data engineer * 4 – Manager, engineer with various stack of knowledge and experience – Junior engineer, used to be a server engineer – Senior engineer, has lots of exps and skills – Data engineer, used to be a top level Android developer • Hiring data analyst and machine learning expert 8
- 9. Between Data Teamis doing.. • Analysis – Service monitoring – Analysis usage of new features and build product strategies • Data Infrastructure – Build and manage infrastructure – Spark, Zeppelin, AWS, BI Tools, etc • Third Party Management – Mobile Attribution Tools for marketing (Kochava, Tune, Appsflyer, etc) – Google Analytics, Firebase, etc – Ad Networks 9
- 10. Between Data Teamis doing.. • Machine Learning Study & Research – For the next business model • Support team – To build business, product, monetization strategies • Performance Marketing Analysis – Monitoring effectiveness of marketing budgets • Product Development – Improves client performance, server architecture, etc 10
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- 12. 7 PM ~ 12 Sunset@ Between Office
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- 14. Requirements • Big Data –2TB/day of log data from millions of DAU – 20M of users • Small Team – Team of 4, need to support 50 • Tiny Budget – Company is just over BEP (Break Even Point) • Need very efficient tech stack! 14
- 15. Way We Work •Use Apache Spark as a general processing engine • Scriptify everything with Apache Zeppelin • Heavy utilization of AWS and Spot instances to cut cost • Proper selection of BI Dashboard Tools 15
- 16. Apache Spark, GeneralEngine • Definitely the best way to deal with big data (as you all know!) • It’s performance, agility exactly meets startup requirements – Used Spark from 2014 • Great match with Cloud Service, especially with Spot instance – Utilizing burst nature of Cloud Service 16
- 17. Scriptify Everything withZeppelin • Doing everything on Zeppelin! • Daily batch tasks in form of Spark scripts (using Zeppelin scheduler) • Ad hoc analysis • Cluster control scripts • The world first user of Zeppelin! • More than 200 Zeppelin notebooks 17
- 18. AWS Cloud • SpotInstance is my friend! – Mostly use spot instance for analysis – only 10 ~ 20% of cost compare to on-demand instances • Dynamic cluster launch with Auto Scale – Launch clusters automatically for batch analysis – Manually launch more clusters on Zeppelin, with Auto Scale script – Automatically diminish clusters when no usage 18
- 19. BI Dashboard Tools •Use Zeppelin as a dashboard using Spark SQL with ZEPL • Holistics (holistics.io) or Dash (plot.ly/products/dash/) 19
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- 21. RDD API orDataFrame API? • Now Spark has very different style of APIs – Programmatic RDD API – SQL-like DataFrame, DataSet API • In case of having many, simple ad-hoc queries – DataFrame works • Having more complex, deep dive analytic questions – RDD works • For a while, mostly use RDD, DataFrame for ML or simple ad hoc tasks 21
- 22. Sushi or CookedData? • Keeping data in a raw form as possible! – Doing ETL’s usually makes trouble, increasing management cost – The Sushi Principle (Joseph & Robert in Strata) – Drastically reduce operation & management cost – Apache Spark is a great tool for extracting insight from raw data 22 fresh data!
- 23. To Hire DataAnalyst or Not? • For data analyst, expected skill set are.. – Excel, SQL, R, .. • Those skills are not expected.. – Programatic API like Spark RDD – Cooking raw data • Prefer data engineer with analytic skills • May need to add some ETL tasks to work with data analyst 23
- 24. Better, Faster TeamSupport? • Better - Zeppelin is great for analyzing data, but not enough for sharing data for team – We have really few alternatives – Increase of using BI dashboard tools? – Still finding a good way • Faster - Launching a Spark cluster takes few minutes – Not bad, but we want it faster – Google BigQuery or AWS Athena – SQL Database with ETL 24
- 25. Future Plan? • Preparefor exploding # of data operations! – Team is growing, business is growing – # of tasks – # of 3rd party data products – Communication cost • Operations with machine learning & deep learning – Better way to manage task & data flow 25
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- 27. What Matters forUs • Support Team – Each Team should see proper data and make good decision from it – Regular meetings, fast response to adhoc data request – Ultimately, our every activity should be related to company’s business • Technical Lead – Technical investments for competence of both company and individual – Working in Between should be a best experience for each individuals • Social Impact – Our activity on work has valuable impact for society? – Open source, activity on community 27
- 28. How Apache Sparkis Powering a Startup? • One great tool for general purpose – Daily batch tasks – Agile, adhoc analysis – Drawing dashboard – Many more.. • Helps saving time, reducing cost of data operations • Great experience for engineer and analyst • Sharing know-how’s to / from community 28
- 29. Work as adata engineer at Startup • Fascinating, fast evolution of tech • Need hard work and labor • Data work will shine only when it is understood and used by teammates 29 Two Peasants Digging, Vincent van GoghTwo Men Digging, Jean-Francois Millet
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