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SPRINGONE2GX WASHINGTON,
DC
Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Developing Real-Time Data Pipelines with Apache Kafka
Joe Stein @allthingshadoop
Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
CEO of Elodina http://www.elodina.net/ a big data as a service platform built on top open source software. The Elodina platform enables customers to analyze data streams and programmatically react to the results in real-time. We solve today’s data analytics needs by providing the tools and support necessary to utilize open source technologies. As users, contributors and committers, Elodina also provides support for frameworks that run on Mesos including Apache Kafka, Exhibitor (Zookeeper), Apache Storm, Apache Cassandra and a whole lot more!
Apache Kafka Committer & PMC Member LinkedIn: http://linkedin.com/in/charmalloc Twitter : @allthingshadoop
whoami
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Contents • Introduction To Kafka
• Overview • Topics, Partitions & Segments • Data Durability • Replication • Producers • Consumers • Performance • Integration • Quick Start • Operations
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• Designs • Distributed RPC
o Request o Process o Response
• Storage & Analytics o Stream o Transform o Analyze o Store o Search
Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Apache Kafka
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Apache Kafka Apache Kafka was first open sourced by LinkedIn in 2011 Papers ● Building a Replicated Logging System with Apache Kafka http://www.vldb.org/pvldb/vol8/p1654-wang.pdf
● Kafka: A Distributed Messaging System for Log Processing http://research.microsoft.com/en-us/um/people/srikanth/netdb11/
netdb11papers/netdb11-final12.pdf ● Building LinkedIn’s Real-time Activity Data Pipeline http://sites.computer.org/debull/A12june/pipeline.pdf
● The Log: What Every Software Engineer Should Know About Real-time Data's Unifying Abstraction http://
engineering.linkedin.com/distributed-systems/log-what-every-software-engineer-should-know-about-real-time-datas-unifying
http://kafka.apache.org/
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
How Big Data Usually Starts
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
More Big Data!
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Ah!
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
eesh
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Kafka de-couples data pipelines
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Distributed Replicated Log
Read and write In real time As much as you want As fast as your network can go
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Topics and Partitions
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Log Segments
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Distributed Replicated Log
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Data Durability
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Replication
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Producers
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Consumers
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Consumer Failover
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Producer Performance
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https://engineering.linkedin.com/kafka/benchmarking-apache-kafka-2-million-writes-second-three-cheap-machines
Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Consumer Performance
http://kafka.apache.org/documentation.html#maximizingefficiency
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Client Libraries Community Clients https://cwiki.apache.org/confluence/display/KAFKA/Clients ● Go (aka golang) Pure Go implementation with full protocol support. Consumer and Producer
implementations included, GZIP and Snappy compression supported.
● Python - Pure Python implementation with full protocol support. Consumer and Producer implementations included, GZIP and Snappy compression supported.
● C - High performance C library with full protocol support ● Ruby - Pure Ruby, Consumer and Producer implementations included, GZIP and Snappy
compression supported. Ruby 1.9.3 and up (CI runs MRI 2. ● Clojure - Clojure DSL for the Kafka API ● JavaScript (NodeJS) - NodeJS client in a pure JavaScript implementation
Wire Protocol Developer's Guide https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Spring Integration
Good blog about it https://spring.io/blog/2015/04/15/using-apache-kafka-for-integration-and-data-processing-pipelines-with-spring
Kafka Integration Source
https://github.com/spring-projects/spring-integration-kafka Spring XD samples https://github.com/spring-projects/spring-xd-samples/tree/master/kafka-source
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Quick Start
https://kafka.apache.org/documentation.html#quickstart Download the 0.8.2.2 release and un-tar it. > tar -xzf kafka_2.10-0.8.2.2.tgz > cd kafka_2.10-0.8.2.2 (use at least four terminal windows) > bin/zookeeper-server-start.sh config/zookeeper.properties > bin/kafka-server-start.sh config/server.properties > bin/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic test > bin/kafka-console-producer.sh --broker-list localhost:9092 --topic test This is a message This is another message > bin/kafka-console-consumer.sh --zookeeper localhost:2181 --topic test --from-beginning This is a message This is another message
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Operationalizing Kafka
https://kafka.apache.org/documentation.html#basic_ops
Basic Kafka Operations
● Adding and removing topics
● Modifying topics
● Graceful shutdown
● Balancing leadership
● Checking consumer position
● Mirroring data between clusters
● Expanding your cluster
● Decommissioning brokers
● Increasing replication factor
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Running on Mesos
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Static Partitioning
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Scaling is manual (even if orchestrated)
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Static failures require manual intervention
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Application Elasticity
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
An operating system for your data center
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Everything goes on Mesos
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Kafka on Mesos
https://github.com/mesos/kafka
● smart broker.id assignment.
● preservation of broker placement (through constraints and/or new features). ● ability to-do configuration changes.
● rolling restarts (for things like configuration changes).
● scaling the cluster up and down with automatic, programmatic and manual
options.
● smart partition assignment via constraints visa vi roles, resources and attributes.
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Kafka on Mesos
Scheduler ● Provides the operational automation for a Kafka Cluster. ● Manages the changes to the broker's configuration. ● Exposes a REST API for the CLI to use or any other client. ● Runs on Marathon for high availability.
Executor ● The executor interacts with the kafka broker as an intermediary to the scheduler
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
REST API & CLI ● scheduler - starts the scheduler. ● add - adds one more more brokers to the cluster.
● update - changes resources, constraints or broker properties one or more brokers.
● remove - take a broker out of the cluster.
● start - starts a broker up.
● stop - this can either a graceful shutdown or will force kill it (./kafka-mesos.sh help stop)
● rebalance - allows you to rebalance a cluster either by selecting the brokers or topics to rebalance. Manual
assignment is still possible using the Apache Kafka project tools. Rebalance can also change the replication factor on a topic.
● help - ./kafka-mesos.sh help || ./kafka-mesos.sh help {command}
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Launch 20 brokers in seconds
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Kafka 0.9 KIP (Kafka Improvement Process)
• https://cwiki.apache.org/confluence/display/KAFKA/Kafka+Improvement+Proposals New Consumer
• https://cwiki.apache.org/confluence/display/KAFKA/Kafka+0.9+Consumer+Rewrite+Design
Security • https://cwiki.apache.org/confluence/display/KAFKA/Security • https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=51809888
JIRA
• https://issues.apache.org/jira/browse/KAFKA/fixforversion/12328745/?selectedTab=com.atlassian.jira.jira-projects-plugin:version-issues-panel
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Distributed RPC
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Reference Architecture
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Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Questions?
http://www.elodina.net
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