SpringOne Platform 2017 Gary Russell, Pivotal Discussion of important new features in this Spring abstraction over the Apache Kafka Java client. The project is gaining popularity in the Spring community and provides a fast on-ramp to using Apache Kafka in a Spring application. This update has improved threading and a new Consumer-aware listener.

1. What’s New in Spring for Apache
Kafka
By Gary Russell
@gprussell
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2. Unless otherwise indicated, these slides are © 2013 -2017 Pivotal Software, Inc. and licensed under a Creative Commons
Attribution-NonCommercial license: http://creativecommons.org/licenses/by -nc/3.0/
Compatibility Matrix (project page)
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3. Unless otherwise indicated, these slides are © 2013 -2017 Pivotal Software, Inc. and licensed under a Creative Commons
Attribution-NonCommercial license: http://creativecommons.org/licenses/by -nc/3.0/ 3

4. Unless otherwise indicated, these slides are © 2013 -2017 Pivotal Software, Inc. and licensed under a Creative Commons
Attribution-NonCommercial license: http://creativecommons.org/licenses/by -nc/3.0/ 4

5. Unless otherwise indicated, these slides are © 2013 -2017 Pivotal Software, Inc. and licensed under a Creative Commons
Attribution-NonCommercial license: http://creativecommons.org/licenses/by -nc/3.0/
KIP-62 == Freedom!!
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KIP-62 (https://cwiki.apache.org/confluence/display/KAFKA/KIP-
62%3A+Allow+consumer+to+send+heartbeats+from+a+background+thread)
• removed the danger of an unexpected rebalance due to a slow listener
• (poll() not called often enough)
• allowed threading model to be rewritten in 2.0
• before 2.0 - 2 threads - consumer + listener
• pause/resume for slow listeners
• 2.0 - 1 thread (consumer) - client takes care of heartbeats
• Back-ported to 1.3 when we decided to create a 1.x version to support
0.11.x.x (driven by the implementation of the kafka11 binder for Spring Cloud
Stream)

6. Learn More. Stay Connected.
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Feedback!!!