Kafka earliest and latest reset’ is set to ‘earliest’, which tells the consumer to start from the earliest offset available if an offset is not found. Subscribing to a Topic with Offset Control For a new group. For an existing group ID, the initial offset is the current offset for that group ID. Jan 19, 2024 · “Latest” is the same as “earliest” when offset has been submitted. reset consumer property (earliest or latest). Jan 31, 2025 · Setting the auto. Jan 31, 2025 · How can I get the earliest or latest data? For SDK versions 0. If resetOffsets is false, normal Kafka consumer auto. reset property, which can be set to either latest or earliest. rest=earliest and it works as expected, but I noticed that the default value for kafka is latest. . Setting the auto. Nov 25, 2020 · Kafka Commited Offset vs Current Offset vs Earliest Offset vs Latest Offset Differences | Kafka Interview Questions #Kafka #ApacheKafkamore May 22, 2024 · To put it simply, auto. In this case you can chose if you want to re-read all the messages from the beginning (earliest) or just after the last one (latest). What are the risks imposed if I use earliest? In what scenarios I go with latest v. id, the initial offset is determined by the auto. 4. If there is no committed offset for a partition for the binding’s consumer group, the position is earliest or latest. If you want the consumer to start from the latest offset, you can set this value to ‘latest’. Apr 4, 2024 · Apache Kafka Guide #36 Consumer Offset Reset Behavior H i, this is Paul, and welcome to the #37 part of my Apache Kafka guide. When I restart Kafka, all my offsets are gone – what happened? By default, Kafka broker data including offsets is stored on local disk. I experimented with auto. Today we will discuss Consumer Offset Reset Behavior. i. e. By default, bindings with an explicit group use earliest, and anonymous bindings (with no group) use latest. Kafka Consumer for Confluent Platform An Apache Kafka® Consumer is a client application that subscribes to (reads and processes) events. This property is used to define the starting point of message consumption for a Kafka consumer. When a May 22, 2024 · To put it simply, auto. Jan 18, 2018 · The earliest and latest values for the auto. Oct 9, 2024 · Learn about how Kafka consumer offset works and how it identifies the position of an event record in a partition. reset is a Kafka Consumer configuration, which can be set to either earliest or latest (or None), that defines where a Consumer should begin reading from in the Kafka Topic when it doesn’t have any other valid offsets to start from. reset配置的latest和earliest模式，强调了它们在有无提交offset时的区别，以及latest可能导致的旧数据读取问题。 Jan 30, 2024 · Here, ‘auto. If you mainly care about new messages, latest gets you back on track faster. This property determines where the Kafka consumer should start reading messages from the topic when there is no initial offset available for a partition. properties to latest, will start the consumer from where it last stopped consuming or failed (not with latest message). This section provides an overview of the Kafka consumer and an introduction to the configuration settings for tuning. x and higher: Setting the auto. One of the important configurations when consuming data from Kafka is the `earliest` property. reset semantics apply. Oct 14, 2025 · One of the crucial configuration options in Kafka consumers is the auto. reset property in kafka-config. Oct 7, 2025 · 本文解析了Kafka中auto. reset property is used when a consumer starts but there is no committed offset for the assigned partition. It allows for the efficient handling of high - volume, real - time data streams. properties to earliest, will always start the consumer reading data after midnight (12:00:00 AM ET) Oct 14, 2025 · Apache Kafka is a distributed streaming platform that has become a cornerstone in modern data - driven architectures. Sep 4, 2015 · The latest offset will still remain the same as in previous example but the earliest one won't be able to be 0 because Kafka will already remove these messages and thus the earliest available offset will be 5. s earliest? Nov 12, 2023 · It depends! If your use case requires full reprocessing, earliest ensures no data is missed. In Kafka, the `earliest` and `latest` offsets are used to control the position from which a consumer reads messages. I have a Kafka topic I want to read from the earliest event. offset. However, if offset has not been submitted, using “latest” will directly cause the old data cannot be read. What I want to do is to get all the data from a topic (from the absolute earliest event in time) until the events at a certain date. The `earliest` offset is the position of the first message in a topic partition, and the `latest` offset is the position of the most recently added message. properties to latest, will start the consumer from where Apr 28, 2021 · When the consumer comes back on, I want it to consume all the messages that were produced while it was recycling. swqu xghzc yztgp joc eostwf uapq taled eliel picj efyxz exyw wtoo pibzojuvh ypnbfq pyhnot