Rdkafka partition assignment strategy. strategy consumer property (ConsumerConfigs.

Rdkafka partition assignment strategy strategy parameter specifies which assignment algorithm to use during rebalances. You can find more about how they work here: Kafka provides several partition assignment strategies to determine how partitions are assigned during a rebalance and is called an “assignor”. Understand the pros and cons of different partitioning approaches. enable. TopicPartition provides partition-specific information (such as topic, partition and offset). Nov 25, 2024 · Explore advanced strategies for designing Kafka topics and partitions to enhance performance, scalability, and data organization in distributed systems. Below we will introduce in detail the two partition allocation strategies built into Kafka. strategy consumer property (ConsumerConfigs. */ Sep 10, 2018 · Feature request: Add Sticky assignor strategy implementation to partition. May 27, 2023 · Kafka provides flexible partitioning strategies that allow producers to control how messages are distributed across partitions. Discover the basics, custom strategies, their impact on performance, and the best practices for efficient data processing. 0 Kafka is working and I have the follo Apr 8, 2024 · Kafka 的分区分配策略（Partition Assignment Strategy）是决定如何将分区分配给消费者的重要组成部分。消费者组内的每个消费者都需要负责处理一定数量的分区，而分区分配策略决定了如何公平地、有效地分配这些分区，以实现负载均衡和高可用性。本文将深入探讨 Kafka 的分区分配策略、常见的分配算法 Sep 29, 2022 · Learn Kafka partition strategies, like round robin and message key, and how to choose the partitioning method to best fit the needs of your application. Aug 3, 2017 · The subscription set denotes the desired topics to consume and this set is provided to the partition assignor (one of the elected group members) for all clients which then uses the configured partition. Polling strategies are partition policies provided by default by Kafka Java Producer API. The round robin assignor lays out all the available partitions and all the available consumers. timeout. May 11, 2024 · Discover the power of partitions in Kafka topics and learn how to consume messages from partitioned topics using Spring Boot. strategy The text was updated successfully, but these errors were encountered: 👍 16 juliusza, mlongob, vianuevm, bmermet, puigfp, raphaelgavache, FrancescoPessina, yujiorama, sobolevan, leeavital, and 6 more reacted with thumbs up emoji Oct 14, 2025 · In the world of Kafka, the `librdkafka` library is a powerful and widely - used C/C++ library for producing and consuming messages. Partitions… Apr 10, 2023 · Guide to Kafka Partitioning Strategies Before diving deep into Kafka partitions, do check out my previous article on the Introduction of Kafka if you haven’t read about Kafka. Removed usage of the partition. Partition assignment strategy The group coordinator uses a partition assignment strategy to assign partitions to consumers in the Kafka consumer group. Aug 21, 2024 · The Sticky Assignor is a Kafka partition assignment strategy that attempts to keep the same partition assignment as long as possible, even during rebalancing. strategy See Also: Constant Field Values See Also: Constant Field Values Constant Field Values AUTO_OFFSET_RESET_CONFIG public static final String AUTO_OFFSET_RESET_CONFIG auto. PARTITION_ASSIGNMENT_STRATEGY_CONFIG public static final String PARTITION_ASSIGNMENT_STRATEGY_CONFIG partition. Jun 29, 2022 · I am using cooperative-sticky as the partition assignment strategy. Phase 2: Partition Assignment ├── Leader determines assignment plan ├── Sends SyncGroup request └── All members receive assignments Phase 3: Start Consuming ├── Consumers get their partitions ├── Commit old offsets └── Begin consuming from new partitions Partition Assignment Strategies 1. protocol=consumer. The default partition assignment strategy is round-robin, where Kafka assigns partitions to consumers one after another. Understanding Kafka topic architecture and partitioning strategies Unrelated - @unematiii, out of curiosity, why are you checking the partition assignment before processing a message? librdkafka purges the internal message queue on rebalance, so you shouldn't get any messages from partitions that are not currently assigned to the consumer? Jan 25, 2021 · I am trying to read the data to convert it to Dataframe and the current versions of my software are the following: spark-2. strategy=cooperative-sticky,session. Available options are: Aug 3, 2017 · The subscription set denotes the desired topics to consume and this set is provided to the partition assignor (one of the elected group members) for all clients which then uses the configured partition. strategy). Rebalance就是一个Consumer Group内的所有Consumer分配消费已订阅的Topic的各Partition的过程。 问题来了：Partition是按照什么规则分配给Group中的各个Consumer的呢？ 本文就来简单讲解一下Kafka的Partition分配策略，可以通过 partition. EDIT: Tried to send the kafka client using package option as well. When using manual AckMode, the listener can also be provided with the Acknowledgment; this example also shows how to use a different container factory. 12-2. 13 (stretch) Provide logs (with debug=. commit" A Kafka partition key is a value that a producer uses to direct messages to a specific partition in a Kafka topic. The Jan 24, 2024 · Kafka topic partitioning strategy: Which one should you choose? In Kafka, partitioning is a versatile and crucial feature, with several strategies available to optimize data distribution and processing efficiency. asssignment. Jun 29, 2017 · I am using a custom Kafka connector (written in Java, using Kafka Connect's Java API) to pull data from an outside source and store in a topic. Kafka. So is there a way to configure an assignment strategy in Confluent Kafka Python Client? Is there a way to set a partition assignment strategy on the server, or per topic or per Dec 17, 2024 · Learn about key configuration parameters, common issues, and advanced techniques to optimize rebalancing performance. I am trying to understand on what basis a Kafka consumer reads messages from its assigned partitions and how can we better ensure fairness among its partitions ? Mar 4, 2024 · Kafka topics play a crucial role in its architecture, serving as the logical channels for organizing and publishing data streams. strategy", then also its not working. sh) works by generating a partition assignment plan that specifies which partitions should be moved from their current broker to a new broker. The Apache Kafka C/C++ library. Returns: non-null unique name getAssignorInstances static List <ConsumerPartitionAssignor> getAssignorInstances(List <String> assignorClasses, Map <String, Object> configs) Get a list of configured instances of ConsumerPartitionAssignor based on the class names/types specified by ConsumerConfig. Jan 17, 2024 · Kafka分区分配策略详解：Range策略按分区范围分配，可能导致负载不均；RoundRobin策略轮询分配更均衡，但要求消费者配置相同。文章对比两种策略实现原理及适用场景，帮助开发者优化Kafka消费组性能。 Each partition can be specified in the partitions or partitionOffsets attribute, but not both. Sep 18, 2024 · Apache Kafka’s partitioning strategy plays a key role in distributing data across brokers and enabling parallel processing. 3. strategy进行配置。 一般情况下，在topic和消费组不发生变化，Kafka会根据topic分区、消费组情况等确定分区策略，但是当发生以下情况时，会触发Kafka的分区重分配： 1. password kafka_password timestamp_format iso8601 Kafka Partitioning and Message Key Producer Destination partition If the destination topic contains multiple partitions, the destination partition is picked according to the hash of the message key. strategy 参数进行配置。 目前一共有3 Apr 8, 2024 · Kafka 的分区分配策略（Partition Assignment Strategy）是决定如何将分区分配给消费者的重要组成部分。消费者组内的每个消费者都需要负责处理一定数量的分区，而分区分配策略决定了如何公平地、有效地分配这些分区，以实现负载均衡和高可用性。本文将深入探讨 Kafka 的分区分配策略、常见的分配算法 May 16, 2022 · I am aware of Partition assignment strategies but this is different as it is related to reading messages from partition after a partition is assigned to the consumer. strategy to assign the subscription sets's topics's partitions to the consumers, depending on their subscription. ms=30000,group. strategy. For PriorityAssignor, this selection occurs because it’s registered as the assignor responsible for partition allocation. h File Reference May 4, 2023 · To change this behaviour, you can use the RoundRobinAssignor partition assignment strategy, which will cause consumer B to switch between partitions 1 and 2 in a round-robin fashion. RebalanceProtocol> supportedProtocols() Description copied from interface: ConsumerPartitionAssignor Dec 17, 2023 · Partition assignment strategies Kafka provides several values for partition/consumer assignments, the last one is the incremental cooperative rebalancing: RangeAssignor: assign partitions on a per Jul 18, 2024 · A particular assignment strategy determines how GroupCoordinator assigns partitions to the available consumers. strategy" configuration setting and change IncrementalAssign / IncrementalUnassign to Assign / Unassign (or remove them entirely) it works as expected Partition Discovery and Dynamic Assignment The Laravel Kafka package provides several methods to discover and work with partition assignments dynamically, which is especially useful when you need to set specific offsets but don't know the partition numbers in advance. To change the PartitionAssignor, you can set the partition. This reduces the frequency of rebalancing and the associated overhead. I need to set a custom partitioning strategy. Similarly, if you remove a consumer or it fails, Kafka reassigns its partitions to other remaining active consumers. 7. as necessary) from librdkafka Provide broker log excerpts * Redistribution and use in source and binary forms, with or without Mar 29, 2021 · Checklist librdkafka version (release number or git tag): v1. Is typically used with std::vector<RdKafka::TopicPartition*> to provide a list of partitions for different operations. 7 kafka_2. To configure the partition assignment strategy, you must set the partition. ) For example The subscription set denotes the desired topics to consume. CONFIGURATION. ConfigDef. strategy" , where you can specify your own custom Assignor , default is RangeAssignor Auto commit is also property driven "enable. Then, each consumer is assigned one topic or partition. strategy property in a consumer configuration. This strategy can be set in configuration with the help of partition. strategy ordering when multiple strategies are configured. 6. commit is a consumer property and will be ignored by this producer instance Does it means that producer was automatically created by librdkafka? If yes, how to disable it? Thank you in advance. Kafka Streams uses a sticky partition assignment strategy to minimize movement in the case of rebalancing. I read about the partition. A new consumer will start consuming messages from partitions according to the configured consumer partition strategies (explained later). Mar 19, 2021 · Issues with "partition. When the following events occur, Kafka will perform a partition allocation: New consumers in the same Consumer Group. On timeout the operation * may continue in the background, depending on state, * and it is okay to call this function again. CooperativeStickyAssignor enables cooperative rebalancing with sticky assignments, minimizing disruption during rebalances [13]: PartitionAssignmentStrategy enum valuesNamespace: Confluent. Only after I produce a few more messages into the same partition, the consumer receives them. Kafka Partitioning and Message Key Producer Destination partition If the destination topic contains multiple partitions, the destination partition is picked according to the hash of the message key. Once a message is produced, it is assigned to a particular partition based on the chosen partitioning strategy. I looked at one of these in more detail: #0 0x00007fc0f32d6fd3 in rd_kafka_group_m Apr 27, 2023 · all consumers "subscribe" to the same topic, using a consumer group. A partition is a fundamental unit that represents a linear, ordered sequence of messages. clients. Consumers must have at least one common assignor. Mar 19, 2018 · Learn about why to partition your data in Kafka, random partitioning of Kafka data, partitioning by aggregate, planning for resource bottlenecks, and more. 11. reset strategy will be used to decide where * in the partition to start fetching messages. strategy 配置了rebalance_cb之后，cooperative-sticky不生效，起多个消费者时，不会进行分区； 这就导致cooperative-sticky时，无法监听rebalance回调 参照issue： github. 4 introduces sticky partitioning, allowing Kafka producers to assign keyless messages to partitions for data processing at lower latency. certificate. Nov 10, 2023 · If certain consumers are consistently lagging behind others, it may indicate a need to adjust the partition assignment strategy or reevaluate the partitioning of the topic itself. May 16, 2022 · I am aware of Partition assignment strategies but this is different as it is related to reading messages from partition after a partition is assigned to the consumer. Learn how to optimize Kafka partitions to build resilient and scalable data This is the so-called polling strategy. Oct 2, 2024 · Learn how to diagnose and resolve Apache Kafka® partition rebalancing issues, and ensure optimal performance with automated tools and monitoring. Ordering and message sequence numbers librdkafka maintains the original produce () ordering per-partition for all messages produced, using an internal per-partition 64-bit counter called the msgid which starts at 1. apache. If there is more than one eligible strategy, preference is determined by the configured order of strategies. Fix partition. java:124) I have tried setting up the "partition. PARTITION_ASSIGNMENT_STRATEGY_CONFIG The partition reassignment tool (kafka-reassign-partitions. One of the major reasons that it came about is to not only try and distribute topic partitions as evenly as possible, but also to have partitions stay with their existing consumers if possible. 078|CONFWARN|rdkafka#producer-1| [thrd:app]: Configuration property enable. as necessary) from librdkafka Provide broker log excerpts * Redistribution and use in source and binary forms, with or without Aug 27, 2021 · Dive into the world of Apache Kafka Partitioning Strategy. Jan 22, 2021 · rd_kafka_conf_destroy(conf); return 1; } /* If there is no previously committed offset for a partition * the auto. The default strategy is Range, which explains why you are seeing such partition distribution. Range Partition Assignment Strategy In this case, how it works is it will distribute a partition at each individual topic level. strategy assignors, such as range and roundrobin, the application must use assign assign () to set and unassign () to clear the entire assignment. strategy and what part is handled by Kafka. Discover best practices for managing rebalancing, including strategic scaling, monitoring, and partition planning, to achieve reliable and efficient Kafka deployments. Jul 12, 2024 · Kafka Clients allows you to implement your own partition assignment strategies for consumers. If the subscriptions of all consumer instances are identical, then the partitions will be uniformly distributed. I am trying to understand on what basis a Kafka consumer reads messages from its assigned partitions and how can we better ensure fairness among its partitions ? Jan 25, 2021 · I am trying to read the data to convert it to Dataframe and the current versions of my software are the following: spark-2. An error will be raised if this is set with group. This extensive guide covers what Kafka partitions are, their architecture, producer and consumer strategies, and best practices for configuring and managing partitions effectively. So unless you have thousands of partitions to consume, you Removed usage of the partition. It then proceeds to do a round robin assignment from partition to consumer. Jun 28, 2018 · I just noticed that when I produce a single message into a partition, my consumer is not receiving it. RebalanceProtocol> supportedProtocols() Description copied from interface: ConsumerPartitionAssignor Aug 24, 2022 · rdkafka. partition. strategy property on your consumer configurations. Aug 28, 2020 · Although the author of the question has answered the value of partition. strategy roundrobin rdkafka. What is Apache Kafka® Partition Strategy? The Apache Kafka partition strategy revolves around how Kafka divides data across multiple partitions within a topic to optimize throughput, reliability, and scalability. config. Contribute to confluentinc/librdkafka development by creating an account on GitHub. The PartitionAssignor class acts as the decision-maker within the Kafka architecture. strategy configuration property which is available to Java Consumers, however I couldn't find it in the Confluent Kafka Client. (i. I don’t think there is any valid use cases for allowing this type of behavior [KIP-848] Removed partition. parse(ConfigDef. This involves Kafka's internal partition assignment strategy (Partition Assignment Strategy). Learn everything you need to know about Kafka partition strategy. verification false rdkafka. Understanding this state is crucial for intermediate - to - advanced software engineers who are working with Kafka in a Note, this is not required to be the same as the class name specified in ConsumerConfig. Polling strategies have very good load balancing performance, which always guarantees that messages are allocated to all partitions, so it is the most reasonable partition policy by default. strategy consumer configuration property. Kafka提供了多种分区策略如 RoundRobin （轮询）、 Range （按范围），可通过参数partition. dll Syntax Jan 4, 2019 · I'm not familiar with what exactly KafkaManger does to retrieve the assignment, but my guess is that the assignment it prints is the assignment of the group leader (based on a partition. Dec 1, 2017 · The class name of the partition assignment strategy that the client will use to distribute partition ownership amongst consumer instances when group management is used May 11, 2024 · Discover the power of partitions in Kafka topics and learn how to consume messages from partitioned topics using Spring Boot. Oct 21, 2021 · In this blog, we will discuss various strategies for partitioning the apache Kafka topic and how it depends on what consumers will do with the data. These strategies determine how records are allocated across different partitions within a topic. com/Blizzard/no… Nov 9, 2022 · Now that librdkafka supports cooperative sticky partitions assignment strategy, we should ensure that consumers that commit offsets manually can’t commit offsets during rebalance as it triggers a follow up rebalance. May 14, 2024 · Explore the best Kafka partition strategies for optimal data distribution and processing efficiency. To provide this Topic configuration propertiesC/P legend: C = Consumer, P = Producer, * = both Jan 4, 2024 · When a producer sends messages to a Kafka topic, Kafka organizes these messages into partitions using a specified partitioning strategy. 8. Range Strategy (Default) Apache Kafka 2. strategy ). e. assignment. 4 introduced a new partitioning strategy called " sticky partitioning " This strategy aims to assign records to partitions in a more efficient manner, reducing latency. The choice of partitioning strategy has implications for data distribution, load balancing, and order preservation. You can override this default behavior explicitly setting the Dec 1, 2017 · The class name of the partition assignment strategy that the client will use to distribute partition ownership amongst consumer instances when group management is used Dec 19, 2018 · I'm confused to what degree partition assignment is a client side concern partition. Aug 4, 2021 · %4|1628131233. You can use a StatefulSet in Kubernetes with an emptyDir volume for stateless apps, to predict what instance id a given pod will have, then use that to target a specific partition. Jun 10, 2019 · Registering a \p rebalance_cb turns off librdkafka's automatic partition assignment/revocation and instead delegates that responsibility to the application's \p rebalance_cb. strategy=cooperative-sticky I'll update the conf in checklist. If I have 4 consumers, with the default partition assignment strategy I will get an even spread such that each consumer Mar 14, 2023 · Understanding Kafka partition assignment strategies with in-depth intuition & Practical using Python Knowledge Amplifier 29. strategy that he should use to get the even distribution of partition when consuming from multiple topics. reset See Also: Constant Field Values Apr 26, 2024 · Partition assignment to consumer groups Consumer rebalancing You can add or remove consumers from a consumer group at run time. One of the important concepts within `librdkafka` is `rd_kafka_partition_ua`. PARTITION_ASSIGNMENT_STRATEGY_CONFIG) in the properties provided to the DefaultKafkaConsumerFactory. Jan 4, 2024 · Throughout this tutorial, we explored various methods for directing messages to specific partitions, including the key-based approach, custom partitioning, and direct partition assignment. 7-bin-hadoop2. There are few assignors provided as part of kafka driver, clients can also customize the assignment process by implementing ConsumerPartitionAssignor. There are two default partition allocation strategies in Kafka: Range and RoundRobin. I want to emphasize the meaning of this config and the thumb rule that we can keep in mind while setting this configuration. Why should you partition your data in Kafka? When the load is so much more that you need more than a single instance of your application, it means you need to partition your data. , the partition ownership counts will be within a delta of exactly one across all consumers. However, you cannot have more replicas than partitions, anyway. strategy? Is it recommended to add the waterdrop gem to the Gemfile, or just karafka and karafka-testing? * * Any outstanding messages will be purged and fail with * RdKafka::ERR__PURGE_INFLIGHT or RdKafka::ERR__PURGE_QUEUE. This is causing a single partitions offsets to be either committed out of range or committed back in time to a previous offset. This set is provided to the partition assignor (one of the elected group members) for all clients which then uses the configured partition. I under Messages are returned as (msg, nil), while general errors are returned as (nil, err), and partition-specific errors are returned as (msg, err) where msg. Kafka Assembly: Confluent. If i print out the offset of received Message, the Offset is set to the ri Sep 20, 2017 · Yes,Kafka consumer has a property "partition. common. If no explicit message key was set, a random one is generated, resulting in the messages being randomly spread across the partitions. Each approach caters to specific use cases and performance requirements, influencing Mar 29, 2021 · Checklist librdkafka version (release number or git tag): v1. ssl. Custom Partition Assignment Logic: Aug 6, 2018 · In general, if all consumers are subscribed to the same topics (a very common scenario), RoundRobin assignment will end up with all consumers having the same number of partitions (or at most 1 partition difference). Oct 22, 2025 · Fix partition. id Setting partition. May 1, 2023 · KafkaJS does support individual partition assignment via partitionAssigners consumer option. Why do I see Rdkafka::Config::ClientCreationError when changing the partition. kafka. Learn how to select the optimal Kafka partition strategy for your use case. md Generated on Sat Jan 6 2018 02:52:57 for librdkafka by 1. Setting this to org. 0 librdkafka client configuration: auto. Sep 10, 2018 · Feature request: Add Sticky assignor strategy implementation to partition. offset. Jul 9, 2023 · Clients can control how partitions are assigned to available consumers by specifying assignment strategy in the consumer group config ( partition. 0 Kafka is working and I have the follo 文章浏览阅读4. PARTITION_ASSIGNMENT_STRATEGY_CONFIG Returns: non-null unique name supportedProtocols public List <ConsumerPartitionAssignor. * See RdKafka::Producer::purge () for details. strategy option. 6k次，点赞27次，收藏43次。博客介绍了Kafka C++在Linux和Windows下的编译过程。Linux下涉及源码下载、配置、编译和安装等；Windows下需使用Visual Studio 2019，还介绍了依赖库及配置。此外，给出了生产者和消费者的参数说明及示例代码。 Jan 1, 2025 · Discover the critical role of partitions in Apache Kafka’s architecture, enabling scalability, fault tolerance, and high performance. Aug 4, 2023 · node-rdkafka支持设置partition. This is a generic type to hold a single partition and various information about it. 8 Removed usage of the partition. * By setting this to earliest the consumer will read all messages * in the partition if there was no previously committed offset. 1 Apache Kafka version: 2. auto. Jul 1, 2019 · The topics and partitions are delegated to each @KafkaListener based on the assignor strategy defined by partition. strategy A list of class names or class types, ordered by preference, of supported partition assignment strategies that the client will use to distribute partition ownership amongst consumer instances when group management is used. Nov 27, 2018 · Description We're using the 'roundrobin' partition assignment strategy, and sometimes I get segfaults in rdk:main. Nov 20, 2019 · In this post, we will see which strategies can be configured for Kafka Client Consumer and how to write a custom PartitionAssignor implementing a failover strategy. as the default partition. * * @param timeout_ms The maximum time to block. Sep 6, 2024 · Priority Partition Assignment Strategy In Kafka, when a consumer group needs to assign partitions to its consumers, it invokes the assign method implemented in a custom partition Dec 17, 2021 · Rebalance & Partition Assignment Strategies in Kafka In common architectures, applications need to use Kafka to read the messages that are written as consumption data. The leader gets access to every client’s subscriptions and assigns partitions accordingly. Key-based Partitioning: In key-based partitioning, the producer assigns a key to each message. Jan 3, 2024 · 生产经验——分区分配策略及再平衡 在Apache Kafka中，确定哪个Consumer消费哪个Partition的数据是由Kafka的Group Coordinator和Partition Assignment策略来管理的。以下是一些关于这个过程的 详细解释： Consumer Group：Consumer Group是一组Consumer的集合，它们协作地消费一个或多个Kafka Topic 中的数据。Consumer Group通常 The consumer group thus maintains a consistent view of the data and avoids processing duplicate messages. This msgid allows messages to be re-inserted in the partition message queue in the original order in the case of retries. Jul 14, 2024 · To confirm that the consumer is involved on that, the strategy for partition assignment is specified by the partition. For example, say I have one kafka topic with 100 partitio Moving the ownership of a partition from one consumer to another is called rebalance, and how to rebalance involves the partition allocation strategy mentioned in this article. Apr 23, 2025 · The partition. Result is same exception. partition. RangeAssignor is the default strategy. Jan 8, 2020 · A newer strategy is called Sticky that was added in version 0. username kafka_user rdkafka. Jan 7, 2022 · RangeAssignor RoundRobinAssignor StickyAssignor CooperativeStickyAssignor You can choose any assignor by simply changing the partition. Value of this property is a list of assignors to choose from. 7K subscribers 59 Sep 6, 2024 · Assignment Strategy Selection: Upon initialisation or rebalance (due to consumer group changes), Kafka selects the appropriate partition assignor based on the group’s configuration. librdkafka The Apache Kafka C/C++ client library No Matches Data Structures | Macros rdkafka. this is Oct 17, 2025 · Partition Assigner란? 정의 Kafka Partition Assignment Strategy 는 Consumer Group의 Consumer들에게 Topic의 Partition을 분배하는 알고리즘을 구현한 전략입니다. The default value is RangeAssignor while the other ones are RoundRobinAssignor and StickyAssignor. reset=earliest,partition. Apr 21, 2022 · If I remove the "partition. mechanisms SCRAM-SHA-512 rdkafka. . The range assignment strategy assigns a range of partitions to each consumer, and is useful when you want to process related data together. instance. 4. strategy The text was updated successfully, but these errors were encountered: 👍 16 juliusza, mlongob, vianuevm, bmermet, puigfp, raphaelgavache, FrancescoPessina, yujiorama, sobolevan, leeavital, and 6 more reacted with thumbs up emoji Note, this is not required to be the same as the class name specified in ConsumerConfig. strategy to CooperativeStickyAssignor 1024 partitions Issues I'm monitoring which partitions get assigned to which consumer/pod and I see some big issues when I play with the number of pods (deleting/recreating 1 pod or all pods at the same time) Topic+Partition. So, I did a small experiment. strategy property for the consumer group protocol. strategy=cooperative-sticky" #3306 Closed shanson7 opened on Mar 19, 2021 Nov 1, 2022 · Description I am consuming from two topics, A and B, each with 4 partitions. 0. id=sticky-test Operating system: Debian GNU/Linux 9. Feb 4, 2022 · Invalid Offsets committed for a partition when the partition has been postponed while a rebalance is in progress while using the EAGER load load balancing strategy. This term refers to the Unassigned (UA) state of Kafka partitions. strategy configuration for the new consumer protocol #4993 pranavrth merged 7 commits into master from dev_kip848-remove-partition-assignment-strategy-rebase Apr 3, 2025 Conversation 35 Commits 7 Checks 0 Files changed Kafka elects one of the consumers in the consumer group to use its partition assignment strategy to assign partitions to the consumers in the group. Now lets assume, upon startup of producer (a single producer is producing messages on all the partitions) and consumers, When i query my consumer for the assigned Topic Partition List all of the Partitions in the result has an offset of -1001. strategy simply decides the order in which the partition Jun 25, 2016 · To address this issue, Apache Kafka version 2. sasl. This can be very useful to adapt to specific deployment scenarios, such as the failover example we used in this post. strategy doesn't include cooperative-sticky could you update your configuration if you're setting it? Sorry, did not give you all the config, but we did have the setting for partition. You can override this default behavior explicitly setting the Dec 6, 2020 · at org. strategy property in your consumer. consumer. For eager/non-cooperative partition. So it will look at the first topic and divide up its partitions among consumer members and it will go through the next topic and then do the same thing. Specify a class using the partition. esnqt tvjgj azumsm liqcv kszrpl upfuvz rqsfq pqqw srx rxdl ivkqe fdcar hteecf trnd eygtv