Another approach would be to version your topic names i.e. topic_name_v1, then when you want to change, simply create topic_name_v2 and point your clients at the new topic. Then afterward you can delete the previous topic and don’t have to worry about the time it takes to complete.
Truncating a topic can be useful for reasons such as data cleanup, resetting the state of a consumer group, or testing purposes. This blog post will provide a detailed overview of Kafka topic truncation, including core concepts, typical usage examples, common practices, and best practices.
This tutorial will walk you through how to reset consumer offsets in Kafka using several approaches, ranging from basic methods provided by Kafka to more advanced custom ones, aided by code examples and explanations.
A typical scenario would be to create a topic with a replication factor of 3, set min.insync.replicas to 2, and produce with acks of "all". This ensures that a majority of replicas must persist a write before it's considered successful by the producer and it's visible to consumers.
If the pipeline stops because of a failed test or faulty records, it is necessary to reset the offsets of a consumer or consumer group. In this article, you will learn how to find stalled or lagging consumers and, if necessary, reset Kafka consumer offsets.
This will execute the reset and reset the consumer group offset for the specified topic back to 0. The consumer group must have no running instance when performing the reset. Otherwise the reset will be rejected.
In this tutorial, we will go through the step by step process to reset the offset of the Kafka consumer group. Consumer offset is used to track the messages that are consumed by consumers in a consumer group. A topic can be consumed by many consumer groups and each consumer group will have many consumers.
If you see an entry under 'CONSUMER-ID/HOST/CLIENT-ID' for your topic, that means you still have a consumer running. Once you shut down the app that's keeping the consumer alive your consumer group will be inactive and you'll be able to shift your offsets at will.
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