Consumer Internal Threads

The video tutorial explains the workings of consumer groups in Kafka, focusing on the coordination between consumers through poll threads and heartbeats. It details the heartbeat mechanism, including session timeout and heartbeat interval settings, and discusses the importance of processing data quickly to avoid rebalances. The tutorial also covers the max poll interval setting, particularly in the context of big data frameworks like Spark, and provides recommendations for optimizing consumer settings.

How can you adjust the session timeout to improve consumer rebalancing?

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What is the maximum pull interval and why is it important in data processing?

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