Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline!

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Check out the full demo code & docker-compose with which to run it: https://github.com/confluentinc/demo-scene/tree/master/mysql-debezium-ksql-elasticsearch
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Have you ever thought that you needed to be a programmer to do stream processing and build streaming data pipelines? Think again! Apache Kafka is a distributed, scalable, and fault-tolerant streaming platform, providing low-latency pub-sub messaging coupled with native storage and stream processing capabilities. Integrating Kafka with RDBMS, NoSQL, and object stores is simple with Kafka Connect, which is part of Apache Kafka. KSQL is the open-source SQL streaming engine for Apache Kafka, and makes it possible to build stream processing applications at scale, written using a familiar SQL interface.

In this talk we’ll explain the architectural reasoning for Apache Kafka and the benefits of real-time integration, and we’ll build a streaming data pipeline using nothing but our bare hands, Kafka Connect, and KSQL.

Gasp as we filter events in real time! Be amazed at how we can enrich streams of data with data from RDBMS! Be astonished at the power of streaming aggregates for anomaly detection!

Transcript

1. Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! @rmoff robin@confluent.io confluent.io/ksql
2. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 2 • Developer Advocate @ Confluent • Working in data & analytics since 2001 • Oracle ACE Director & Dev Champion • Blogging : http://rmoff.net & http://cnfl.io/rmoff • Twitter: @rmoff • Geek stuff • Beer & Fried Breakfasts $ whoami https://speakerdeck.com/rmoff/
3. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 3 App App App App search Hadoop DWH monitoring security MQ MQ cache cache A bit of a mess…
4. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 4 Kafka is a Streaming Platform KAFKA DWH Hadoop App App App App App App App App request-response messaging OR stream processing streaming data pipelines changelogs
5. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 5 Analytics - Database Offload HDFS / S3 / BigQuery etc RDBMS CDC
6. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 6 Stream Processing with Apache Kafka and KSQL order events customer customer orders Stream Processing RDBMS CDC
7. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 7 Real-time Event Stream Enrichment order events customer Stream Processing customer orders RDBMS <y> CDC
8. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 8 Transform Once, Use Many order events customer Stream Processing customer orders RDBMS <y> New App <x> CDC
9. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 9 Transform Once, Use Many order events customer Stream Processing customer orders RDBMS <y> HDFS / S3 / etc New App <x> CDC
10. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 10 Rating events Join events to users, and filter Push notification to Slack Operational Dashboard Data Lake User data Let’s Build It!
11. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 11 Rating events Join events to users, and filter Push notification to Slack Operational Dashboard Data Lake User data RDBMS S3/HDFS/ SnowflakeDB etc Elasticsearch App App Producer API Consumer API Let’s Build It!
12. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 12 Rating events Join events to users, and filter Push notification to Slack Operational Dashboard Data Lake User data RDBMS S3/HDFS/ SnowflakeDB etc Elasticsearch App App Producer API Consumer API Kafka Connect Kafka Connect Kafka Connect Kafka Connect
13. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 13 Streaming Integration with Kafka Connect Kafka Brokers Kafka Connect Tasks Workers Sources Sinks Amazon S3 syslog flat file CSV JSON MQTT MQTT
14. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 14 ✓ Fault tolerant and automatically load balanced ✓ Extensible API ✓ Single Message Transforms ✓ Part of Apache Kafka, included in
 Confluent Open Source Reliable and scalable integration of Kafka with other systems – no coding required. { "connector.class": "io.confluent.connect.jdbc.JdbcSourceConnector", "connection.url": "jdbc:mysql://localhost:3306/demo?user=rmoff&password=foo", "table.whitelist": "sales,orders,customers" } https://docs.confluent.io/current/connect/ ✓ Centralized management and configuration ✓ Support for hundreds of technologies including RDBMS, Elasticsearch, HDFS, S3 ✓ Supports CDC ingest of events from RDBMS ✓ Preserves data schema Kafka Connect
15. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 15 Kafka Connect + Schema Registry = WIN RDBMS Avro Message Elasticsearch Schema Registry Avro Schema Kafka Connect Kafka Connect
16. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 16 Kafka Connect + Schema Registry = WIN RDBMS Elasticsearch Schema Registry Avro Schema Kafka Connect Kafka Connect Avro Message
17. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 17 Confluent Hub hub.confluent.io • One-stop place to discover and download : • Connectors • Transformations • Converters
18. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 18 MySQL Debezium Kafka Connect Producer API Demo Time!
19. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 19 Rating events Join events to users, and filter Push notification to Slack Operational Dashboard Data Lake User data RDBMS S3/HDFS/ SnowflakeDB etc Elasticsearch App App Producer API Consumer API Let’s Build It! Kafka Connect Kafka Connect Kafka Connect
20. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 20 Rating events Join events to users, and filter Push notification to Slack Operational Dashboard Data Lake User data RDBMS S3/HDFS/ SnowflakeDB etc Elasticsearch App App Producer API Consumer API KSQL Kafka Connect Kafka Connect Kafka Connect KSQL
21. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql Declarative Stream Language Processing KSQL is a
22. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql KSQL is the Streaming SQL Engine for Apache Kafka
23. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql KSQL in Development and Production Interactive KSQL
 for development and testing Headless KSQL
 for Production Desired KSQL queries have been identified REST “Hmm, let me try
 out this idea...”
24. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql KSQL for Streaming ETL CREATE STREAM vip_actions AS 
 SELECT userid, page, action FROM clickstream c LEFT JOIN users u ON c.userid = u.user_id 
 WHERE u.level = 'Platinum'; Joining, filtering, and aggregating streams of event data
25. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql KSQL for Anomaly Detection CREATE TABLE possible_fraud AS
 SELECT card_number, count(*)
 FROM authorization_attempts 
 WINDOW TUMBLING (SIZE 5 SECONDS)
 GROUP BY card_number
 HAVING count(*) > 3; Identifying patterns or anomalies in real-time data, surfaced in milliseconds
26. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql KSQL for Real-Time Monitoring • Log data monitoring, tracking and alerting • syslog data • Sensor / IoT data CREATE STREAM SYSLOG_INVALID_USERS AS SELECT HOST, MESSAGE FROM SYSLOG WHERE MESSAGE LIKE '%Invalid user%'; http://cnfl.io/syslogs-filtering / http://cnfl.io/syslog-alerting
27. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql CREATE STREAM views_by_userid WITH (PARTITIONS=6, REPLICAS=5, VALUE_FORMAT='AVRO', TIMESTAMP='view_time') AS 
 SELECT * FROM clickstream PARTITION BY user_id; KSQL for Data Transformation Make simple derivations of existing topics from the command line
28. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 28 MySQL Debezium Kafka Connect Producer API Elasticsearch Kafka Connect Demo Time!
29. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 29 Producer API { "rating_id": 5313, "user_id": 3, "stars": 4, "route_id": 6975, "rating_time": 1519304105213, "channel": "web", "message": "worst. flight. ever. #neveragain" } POOR_RATINGS Filter all ratings where STARS<3 CREATE STREAM POOR_RATINGS AS SELECT * FROM ratings WHERE STARS <3
30. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 30 Do you think that’s a table you are querying?
31. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 31 The Table Stream Duality Account ID Balance 12345 €50 Account ID Amount 12345 + €50 12345 + €25 12345 -€60 Account ID Balance 12345 €75 Account ID Balance 12345 €15 Time Stream Table
32. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 32 The truth is the log. The database is a cache of a subset of the log. —Pat Helland Immutability Changes Everything http://cidrdb.org/cidr2015/Papers/CIDR15_Paper16.pdf Photo by Bobby Burch on Unsplash
33. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 33 Kafka Connect Producer API { "rating_id": 5313, "user_id": 3, "stars": 4, "route_id": 6975, "rating_time": 1519304105213, "channel": "web", "message": "worst. flight. ever. #neveragain" } { "id": 3, "first_name": "Merilyn", "last_name": "Doughartie", "email": "mdoughartie1@dedecms.com", "gender": "Female", "club_status": "platinum", "comments": "none" } RATINGS_WITH_CUSTOMER_DATA Join each rating to customer data CREATE STREAM RATINGS_WITH_CUSTOMER_DATA AS SELECT * FROM RATINGS LEFT JOIN CUSTOMERS ON R.ID=C.ID;
34. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 34 Kafka Connect Producer API { "rating_id": 5313, "user_id": 3, "stars": 4, "route_id": 6975, "rating_time": 1519304105213, "channel": "web", "message": "worst. flight. ever. #neveragain" } { "id": 3, "first_name": "Merilyn", "last_name": "Doughartie", "email": "mdoughartie1@dedecms.com", "gender": "Female", "club_status": "platinum", "comments": "none" } RATINGS_WITH_CUSTOMER_DATA Join each rating to customer data UNHAPPY_PLATINUM_CUSTOMERS Filter for just PLATINUM customers CREATE STREAM UNHAPPY_PLATINUM_CUSTOMERS AS SELECT * FROM RATINGS_WITH_CUSTOMER_DATA WHERE STARS < 3
35. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 35 Kafka Connect Producer API { "rating_id": 5313, "user_id": 3, "stars": 4, "route_id": 6975, "rating_time": 1519304105213, "channel": "web", "message": "worst. flight. ever. #neveragain" } { "id": 3, "first_name": "Merilyn", "last_name": "Doughartie", "email": "mdoughartie1@dedecms.com", "gender": "Female", "club_status": "platinum", "comments": "none" } RATINGS_WITH_CUSTOMER_DATA Join each rating to customer data RATINGS_BY_CLUB_STATUS_1MIN Aggregate per-minute by CLUB_STATUS CREATE TABLE RATINGS_BY_CLUB_STATUS AS SELECT CLUB_STATUS, COUNT(*) FROM RATINGS_WITH_CUSTOMER_DATA WINDOW TUMBLING (SIZE 1 MINUTES) GROUP BY CLUB_STATUS;
36. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 36 Confluent Open Source : Apache Kafka with a bunch of cool stuff! For free! Database Changes Log Events loT Data Web Events … CRM Data Warehouse Database Hadoop Data
 Integration … Monitoring Analytics Custom Apps Transformations Real-time Applications … Apache Open Source Confluent Open Source Confluent Enterprise Confluent Platform Confluent Platform Apache Kafka® Core | Connect API | Streams API Data Compatibility Schema Registry Monitoring & Administration Confluent Control Center | Security Operations Replicator | Auto Data Balancing Development and Connectivity Clients | Connectors | REST Proxy | CLI Apache Open Source Confluent Open Source Confluent Enterprise SQL Stream Processing KSQL
37. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 37 Free Books! https://www.confluent.io/apache-kafka-stream-processing-book-bundle
38. @rmoff robin@confluent.io https://www.confluent.io/ksql http://cnfl.io/slack
39. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 39 • Embrace the Anarchy : Apache Kafka's Role in Modern Data Architectures Recording & Slides • Look Ma, no Code! Building Streaming Data Pipelines with Apache Kafka and KSQL • Steps to Building a Streaming ETL Pipeline with Apache Kafka and KSQL Recording & Slides • https://www.confluent.io/blog/ksql-in-action-real-time-streaming-etl-from-oracle-transactional-data • https://github.com/confluentinc/ksql/ Useful links
40. @rmoff / Apache Kafka and KSQL in Action : Let’s Build a Streaming Data Pipeline! http://cnfl.io/ksql 40 • CDC Spreadsheet • Blog: No More Silos: How to Integrate your Databases with Apache Kafka and CDC • #partner-engineering on Slack for questions • BD team (#partners / partners@confluent.io) can help with introductions on a given sales op Resources #EOF