I am using the Python high level consumer for Kafka and want to know the latest offsets for each partition of a topic. The Kafka configuration use cases map pretty clearly to the RDBMS space. The MapR Event Store For Apache Kafka C Client is available in MapR Ecosystem Pack (MEP) 3. The log compaction feature in Kafka helps support this usage. KAFKA-5763 - Refactor NetworkClient to use LogContext. We got rid of that entirely by building a native executable! I made another modification to the Kafka source code and commented out the related JMX code. The minimum broker version required is 0. sh --alter --topic --partitions. In this post, I will cover what happened in the Kafka community in July 2018. As described in KIP-4 and KIP-117 it is desirable to have network protocols and Java AdminClient APIs for administration of a Kafka cluster. A new method AdminClient#metrics(), has been added to AdminClient. Find file Copy path sungam3r Spell check c65c612 Jun 5, 2019. **依赖)提供了AdminClient和AdminUtils可以提供部分的集群管理操作,但社区官网主页并没有给出这两个类的使用文档。. It would be valuable for this information to be available in the AdminClient because there will eventually be an API for partition reassignment in the AdminClient, and knowing about the current reassignments is important when creating more. if you try to `createTopics(Collections. kafka-notebook / kafka-AdminClient. Interfaces marked with the @Evolving or @Unstable annotations in the Kafka source code. **依赖)提供了AdminClient和AdminUtils可以提供部分的集群管理操作,但社区官网主页并没有给出这两个类的使用文档。. I'm using kafka version 0. KafkaOffsetMonitor是Kafka的一款客户端消费监控工具,用来实时监控Kafka服务的Consumer以及它们所在的Partition中的Offset,我们可以浏览当前的消费者组,并且每个Topic的所有Partition的消费情况都可以一目了然。. send(ProducerRecord, Callback) if Kafka broker is not running - Add '--help' option to all available Kafka CLI commands (KIP-374) - Global stores should be guarded as read-only for regular tasks - Introduce broker options in TopicCommand to use AdminClient. If the requested offset is in the middle of the batch, the replica will not be able to fetch from that offset (because it is in the middle of the batch). [Kafka-dev] [jira] [Created] (KAFKA-2768) New-consumer sends invalid describeGroupResponse while restabilizing. Now it is recommended to not rely on this feature and, instead, use the AdminClient API to create topics. To use the AdminClient API, add the following Maven dependency:. The Confluent clients for Apache Kafka have passed a major milestone—the release of version 1. The MapR Event Store For Apache Kafka C Client is a distribution of librdkafka that works with MapR Event Store For Apache Kafka. Summary SDKs (11). Why do we have to balance topics in a Kafka cluster? Whenever a Kafka node is down, the load of that server is distributed to the other nodes in the cluster and this distribution is not even, i. 是的,您可以使用任何利用 Apache Kafka 生产者和使用者 API 以及 Apache Kafka AdminClient 的组件。 将. ConsumerGroupCommand. Connecting to a Kafka Consumer is easy. But since the client is using PLAINTEXT on an SSL port, the client is interpreting SSL handshake protocol messages as Kafka requests. The parameters are organized by order of importance, ranked from high to low. Kafka uses ZooKeeper to store offsets of messages consumed for a specific topic and partition by the consumer group. confluent-kafka-dotnet / examples / AdminClient / Program. Kafka Tutorial: Using Kafka from the command line - go to homepage. See the NOTICE file distributed with this work for additional information regarding copyright ownership. Methods with stricter requirements will specify the minimum broker version required.   In this post, I will cover what happened in the Kafka community in June 2018. Nit: no need to align across methods as it wastes space for not much benefit. 0 and the API is still evolving. GitHub Gist: instantly share code, notes, and snippets. Apache Kafka has some built-in client tools to produce and consume messages against Apache Kafka broker. The MapR Event Store For Apache Kafka C Client is a distribution of librdkafka that works with MapR Event Store For Apache Kafka. if you try to `createTopics(Collections. [jira] [Updated] (KAFKA-6188) Broker fails with FATAL Shutdown - log dirs have failed Valentina Baljak (JIRA) [jira] [Updated] (KAFKA-6188) Broker fails with FATAL Shutdown - log dirs have failed. 0 Release Notes. Broker may not be available See also Kafka Listeners - Explained A short post to help Googlers. The original motivation for using an abstract class, rather than an interface, was because Java 7 did not support default method for interfaces. A Kafka Streams developer describes the processing logic using a Topology directly (that is a graph of processors) or indirectly through a StreamsBuilder that provides the high-level DSL to define transformations and build a stream processing topology. id value is specified by the Kafka consumer client and is used to distinguish between different clients. However I cannot get it to work. For upstream release notes, see Apache Kafka version 2. 1, that you can watch below, but I wrote this blog to also allow you to read in your own time: Kafka 2. 1 is quite a special upgrade…. Now it is recommended to not rely on this feature and, instead, use the AdminClient API to create topics. So far we had been using it with plaintext transport but recently have been considering upgrading to using SSL. Timing out {}. getAdminConfigs takes the getClientCustomProps and copies the AdminClient properties over. The MapR Event Store For Apache Kafka C Client is available in MapR Ecosystem Pack (MEP) 3. The Spring for Apache Kafka project applies core Spring concepts to the development of Kafka-based messaging solutions. 很多用户都有直接使用程序API操作Kafka集群的需求。在0. Two days ago, the Apache Kafka team released the latest version of their open source distributed data streaming software, Apache Kafka 2. 0, we introduced several security enhancements. Kafka Paas平台是我行自研的一套平台,提供Kafka接入和Kafka运维管控解决方案,集成集群监控管理、Topic管理、Consumer Group管理、Schema Registry管理和ZooKeeper管理功能,帮助Kafka运维人员和接入人员快速使用和管控Kafka集群。. Questions: I'm new to Kafka and am trying to use the AdminClient API to manage the Kafka server running on my local machine. Parameters:. As a result, the goal of this KIP is to provide support for this feature via the Kafka API and expose it in the AdminClient API. The Spring for Apache Kafka project applies core Spring concepts to the development of Kafka-based messaging solutions. consumers and producers). Mission accomplished! The next step was to look at resource use. Create a batch of new topics. This section talks about configuring settings dynamically, changing logging levels, partition reassignment and deleting topics. Filled with real-world use cases and scenarios, this book probes Kafka's most common use cases, ranging from simple logging through managing streaming data systems for message routing, analytics, and more. 215 lines (139. Answer Wiki. Object implements java. kafka-notebook / kafka-AdminClient. sh and kafka-topics. createPartitions() (KIP-195) The contribution is my original work and I license the work to the project under the project's open source license. KAFKA-5856 - KIP 195: Increase the number of partitions of a topic using AdminClient. KAFKA-5755 - Refactor KafkaProducer to use LogContext. Presented by Rajini Sivaram, Pivotal. Distributed streaming platform Apache Kafka has hit the 2. NAME DESCRIPTION TYPE DEFAULT VALID VALUES IMPORTANCE; bootstrap. adminClient = adminClient; } /** * Retrieve all available topics within cluster. But when a new table is created in Atlas. deleteRecordsBefore已被删除。 建议用户迁移到 org. producer package, are applicable to MapR support of Apache Kafka 1. IMO, Kafka isn’t designed to scale for large blobs of data and it better to use standard solutions for the same. I have been trying to to use AdminClient to get the lag of a consumer but. We got rid of that entirely by building a native executable! I made another modification to the Kafka source code and commented out the related JMX code. 11版本之前,kafka的服务器端代码(即添加kafka_2. A Kafka Streams developer describes the processing logic using a Topology directly (that is a graph of processors) or indirectly through a StreamsBuilder that provides the high-level DSL to define transformations and build a stream processing topology. As described in KIP-4 and KIP-117 it is desirable to have network protocols and Java AdminClient APIs for administration of a Kafka cluster. Currently the AdminClient has no visibility of the partition reassignments occurring in a Kafka cluster. cs Find file Copy path mhowlett fix AdminClient deadlock issue + improve AdminClient example ( #799 ) d4d6264 Feb 25, 2019. In Confluent Platform 5. * @param adminClient The AdminClient to wrap. Find and contribute more Kafka tutorials with Confluent, the real-time event streaming experts. Hi, I'm not able to use kafka-consumer-groups. cmccabe pushed a commit to branch trunk in repository https://gitbox. kafka是一个消息队列产品,基于Topicpartitions的设计,能达到非常高的消息发送处理性能。Spring创建了一个项目Spring-kafka,封装了Apache 的Kafka-client,用于在Spring项目里快速集成kafka。. Try free on any cloud or serverless. [jira] [Created] (KAFKA-8998) Release Candidate Version 2. 0, which contains a number of new features, performance improvements and bug fixes, including: More use of AdminClient in commands: kafka-preferred-replica-election. When a new tag is created in Atlas, its not showing up in. This patch adds AdminClient. kafka AdminClient 闲时关闭连接的更多相关文章. Release Notes - Kafka - Version 2. Interfaces marked with the @Evolving or @Unstable annotations in the Kafka source code. Kafka配置详解-AdminClient配置 时间:2018-12-19 本文章向大家介绍Kafka配置详解-AdminClient配置,主要包括Kafka配置详解-AdminClient配置使用实例、应用技巧、基本知识点总结和需要注意事项,具有一定的参考价值,需要的朋友可以参考一下。. 目前kafka集群启用SASL_PLAINTEXT权限和ACl,在使用kafka-consumer-group. Evolving public abstract class AdminClient extends java. Leading up to the 1. OK, I Understand. Kafka - Create Topic : All the information about Kafka Topics is stored in Zookeeper. sh--bootstrap-server localhos t:9092--topic test --from-beginning This is a message This is another message. 很多用户都有直接使用程序API操作Kafka集群的需求。在0. create (Vertx vertx, org. Kafka Cluster — A Kafka cluster, sometimes referred to simply as a cluster, is a group of one or more Kafka brokers. Getting dependencies. Methods with stricter requirements will specify the minimum broker version required. Release Notes - Kafka - Version 2. Its presence causes confusion and people still use them accidentally at times. I have been trying to to use AdminClient to get the lag of a consumer but. Interestingly, looking at RDBMS, something non-obvious gets exposed: the idea of running DML migrations to insert/delete specific messages. id The Client. Now it is recommended to not rely on this feature and, instead, use the AdminClient API to create topics. debug("The AdminClient is not accepting new calls. KAFKA-5700: Producer should not drop header information when splitting batches. ㆍ kafka 운영 - kafka의 Exception들 - (1) 2019. While the functionality will remain the same, it will enable users to run this tool in environments where zookeeper is not directly available (it is often the case in Cloud environments). kafka命令大全 获取kafka版本 kafka实战kerberos(笔记) Kafka Stream演示程序 手把手教你写Kafka Streams程序 kafka外网转发 您的收藏 {{name. 1 (server and Java client libraries). In this release, a new Maximum Log Compaction Lag has been added. If the requested offset is in the middle of the batch, the replica will not be able to fetch from that offset (because it is in the middle of the batch). 具体的KafkaAdminClient包含了一下几种功能(以Kafka1. But it does work if you provide the same through the --command-config flag like:. Nit: no need to align across methods as it wastes space for not much benefit. deleteRecords 。 19. DescribeTopicsResult. Collection of. KAFKA-5856 - KIP 195: Increase the number of partitions of a topic using AdminClient. I've enabled debug logging on the Kafka client and this is what I'm seeing on the first connection:. KAFKA-6287 - Inconsistent protocol type for empty consumer groups. I'm using kafka version 0. Questions: I’m new to Kafka and am trying to use the AdminClient API to manage the Kafka server running on my local machine. Online Help Keyboard Shortcuts Feed Builder What’s new. Connecting to a Kafka Consumer is easy. However, if we don’t have access to the machine where it is deployed or we don’t have any tool like Yahoo Kafka Manager, we can use Apache Kafka’s AdminClient API for getting details about the topic. Sort: popular | newest. 0, see the Apache Kafka 1. However, when I run. We also provide support for Message-driven POJOs. Prevention and debugging of replication issues has gotten easier thanks to the introduction of the topic partition category AtMinIsr. 在项目中创建了一个 AdminClient 对象,每次创建 topic 时,调用 org. id value is specified by the Kafka consumer client and is used to distinguish between different clients. 目前kafka集群启用SASL_PLAINTEXT权限和ACl,在使用kafka-consumer-group. Kafka Offset Monitor. MAX_VALUE, new TimeoutException("The AdminClient thread is not accepting. The API we've arrived at contains a bunch of new features and major improvements. Two days ago, the Apache Kafka team released the latest version of their open source distributed data streaming software, Apache Kafka 2. 0。有些API會需要更高版本的Kafka broker的話會註解在API中。. Kafka — Standalone Command-Line Application kafka. 很多用户都有直接使用程序API操作Kafka集群的需求。在0. The original motivation for using an abstract class, rather than an interface, was because Java 7 did not support default method for interfaces. Kafka is a large beast, and has a fair amount of configuration to be managed across a number of different systems. org/repos/asf/kafka. cs Find file Copy path mhowlett fix AdminClient deadlock issue + improve AdminClient example ( #799 ) d4d6264 Feb 25, 2019. One use-case where this could cause problems is replica re-assignment. These APIs are supported as of MapR 6. Hi, I'm not able to use kafka-consumer-groups. js wrapper. e the load is not distributed evenly across all nodes in the cluster. [jira] [Created] (KAFKA-8998) Release Candidate Version 2. For more information, see the AdminClient API. org/repos/asf/kafka. bytes should be allowed to set -1 in KafkaStreams KAFKA-7385 - Fix log cleaner behavior when only empty batches are retained. En novembre 2014, plusieurs ingénieurs créateurs de Kafka chez LinkedIn créent une nouvelle société nommée Confluent [4] avec pour axe le logiciel Kafka. AdminClient 实现的,describeConsumerGroup 方法可以获取 state、组内 consumer 分配策略、协调节点和组内 consumer 信息,关于获取消费的位移 /lag 信息,利用 adminclient. Apache Kafka AdminClient API - Changelog Streaming Applications , Data The Apache Kafka AdminClient API allows developers to manage and inspect topics, brokers, ACLs, and configurations. Learn to create tumbling windows using Kafka Streams with full code examples. Apache Kafka a été initialement développé par LinkedIn et son code a été ouvert début 2011 [3]. 2019/10/04 [jira] [Created] (KAFKA-8983) AdminClient deleteRecords should not fail all partitions unnecessarily Jason Gustafson (Jira) 2019/10/04 Build failed in Jenkins: kafka-trunk-jdk8 #3945 Apache Jenkins Server. 0, it was never meant as a publicly supported API and people should use org. Find file Copy path Fetching contributors… Cannot retrieve contributors at this time. MapR Event Store For Apache Kafka Python Applications. This client enables users to programmatically execute admin tasks without relying on those old internal classes or even Zookeeper - all Zookeeper tasks are executed by brokers. w397090770 5个月前 (05-26) 1847℃ 1评论 9. GitBook is where you create, write and organize documentation and books with your team. KIP-487: Client-side Automatic Topic Creation on Producer: Historically, Kafka brokers have allowed auto topic creations. (6 replies) Hi, I'm not able to use kafka-consumer-groups. 目前kafka集群启用SASL_PLAINTEXT权限和ACl,在使用kafka-consumer-group. The API we've arrived at contains a bunch of new features and major improvements. kafka中topic和consumer group 是怎么关联的? 怎么通过topic名查找到订阅了该topic的consumer group?怎么找到consumer group订阅的所有topic? 拜托各位大神,找了好久资料了,还是没弄清 显示全部. 很多用户都有直接使用程序API操作Kafka集群的需求。在0. I am using the Python high level consumer for Kafka and want to know the latest offsets for each partition of a topic. I found some code that looks like it should do what I want. 11 implemented KIP-117, thus providing a new type of Kafka client - org. This section talks about configuring settings dynamically, changing logging levels, partition reassignment and deleting topics. Then I tried modifying the alert_disk_space. If you are not too familiar with it, make sure to first check out my other article — A Thorough Introduction To Apache Kafka. Package kafka provides high-level Apache Kafka producer and consumers using bindings on-top of the librdkafka C library. It provides an intuitive UI that allows one to quickly view objects within a Kafka cluster as well as the messages stored in the topics of the cluster. For further downstream processing, you can store the references in Kafka. from kafka import TopicPartition from kafka. But since the client is using PLAINTEXT on an SSL port, the client is interpreting SSL handshake protocol messages as Kafka requests. This is an automated email from the ASF dual-hosted git repository. AdminClient class. kafka » kafka-clients Apache Kafka. @InterfaceStability. Evolving public abstract class AdminClient extends java. Question by Wenjie Wu Oct 09, 2018 at 11:38 PM Hive Ranger Kafka Atlas ranger-tagsync Atlas, Hive,Ranger services are running fine. KAFKA-6251 Update kafka-configs. Summary SDKs (0). The log helps replicate data between nodes and acts as a re-syncing mechanism for failed nodes to restore their data. 11 implemented KIP-117, thus providing a new type of Kafka client – org. KAFKA-6287 - Inconsistent protocol type for empty consumer groups. KAFKA-5755 - Refactor KafkaProducer to use LogContext. sh to use the new. 3 mark, claiming to improve aspects such as resilience and failure handling along the way. createPartitions(). deleteRecordsBefore已被删除。 建议用户迁移到 org. A Kafka Streams developer describes the processing logic using a Topology directly (that is a graph of processors) or indirectly through a StreamsBuilder that provides the high-level DSL to define transformations and build a stream processing topology. Kafka Training: Using Kafka from the command line starts up ZooKeeper, and Kafka and then uses Kafka command line tools to create a topic, produce some messages and consume them. NET client in particular. KAFKA-5700: Producer should not drop header information when splitting batches. Then I tried modifying the alert_disk_space. sh--bootstrap-server localhos t:9092--topic test --from-beginning This is a message This is another message. Ask Question 0. Kafka is an ever-evolving distributed streaming platform. ConsumerGroupSummary} information from Kafka * @throws AdminOperationException * if there is an issue retrieving the consumer group summary */ public AdminClient. from kafka import TopicPartition from kafka. cmccabe pushed a commit to branch trunk in repository https://gitbox. I have it setup exactly the same as in the quick start section of the Kafka documentation. confluent-kafka-dotnet / src / Confluent. Question by Wenjie Wu Oct 09, 2018 at 11:38 PM Hive Ranger Kafka Atlas ranger-tagsync Atlas, Hive,Ranger services are running fine. downconversion. 11版本之前,kafka的服务器端代码(即添加kafka_2. Create a batch of new topics. Client configuration Producer and consumer timeouts, encoder/decoder, etc. TimeoutException Find a solution to your bug here This list contains all the bugs that lead to this exception. KAFKA-5601 Refactor ReassignPartitionsCommand to use AdminClient Currently the ReassignPartitionsCommand (used by kafka-reassign-partitions. 2 Topic配置与topic相关的配置,服务器的默认值,也可可选择的覆盖指定的topic。如果没有给出指定topic的配置,则将使用服务器默认值。. 0。 有些API會需要更高版本的Kafka broker的話會註解在API中。. Find and contribute more Kafka tutorials with Confluent, the real-time event streaming experts. 0, we introduced several security enhancements. [jira] [Created] (KAFKA-8998) Release Candidate Version 2. Leading up to the 1. id value is specified by the Kafka consumer client and is used to distinguish between different clients. AdminClient Configurations¶. This change would aim to add capability to the TopicCommand to be able to connect to a broker using the AdminClient. Connecting to a Kafka Consumer is easy. Then I tried modifying the alert_disk_space. createPartitions(). Kafka is an ever-evolving distributed streaming platform. Client configuration Producer and consumer timeouts, encoder/decoder, etc. - Bug prone response from producer. Questions: I’m new to Kafka and am trying to use the AdminClient API to manage the Kafka server running on my local machine. JIRA: KAFKA-5856. from kafka import TopicPartition from kafka. En novembre 2014, plusieurs ingénieurs créateurs de Kafka chez LinkedIn créent une nouvelle société nommée Confluent [4] avec pour axe le logiciel Kafka. As described in KIP-4 and KIP-117 it is desirable to have network protocols and Java AdminClient APIs for administration of a Kafka cluster. springframework. Users should not refer to this class directly. confluent-kafka-dotnet / src / Confluent. 2 release: Date: Fri, 17 Nov 2017 14:47:20 GMT. If you are not too familiar with it, make sure to first check out my other article — A Thorough Introduction To Apache Kafka. ConsumerGroupSummary} information from Kafka * * @param consumerGroup * the name of the consumer group * @return the {@link AdminClient. 0 installed on an hortonworks hdp 2. Object implements java. Kafka is an ever-evolving distributed streaming platform. confluent-kafka-dotnet / src / Confluent. 2 includes Apache Kafka 2. I searched the AdminClient in the latest released kafka-clients jar, version 0. The Kafka topic we're going to use. adminClient = adminClient; } /** * Retrieve all available topics within cluster. The administrative client for Kafka, which supports managing and inspecting topics, brokers, configurations and ACLs. Note that ACLs are stored in ZooKeeper and they are propagated to the brokers asynchronously so there may be a delay before the change takes effect even. from kafka import TopicPartition from kafka. Leading up to the 1. springframework. Find file Copy path sungam3r Spell check c65c612 Jun 5, 2019. kafka » kafka-streams-upgrade-system-tests-11 Apache. But when a new table is created in Atlas. This client was introduced in 0. AdminClient, creating topics) (All cleanly deployed in fresh Docker containers. For full documentation of the release, a guide to get started, and information about the project, see the Kafka project site. Kafka Releases: As hinted last month's digest, 5 Kafka versions have been released in July! First, let's cover the new major release: - Kafka 2. Broker may not be available Published Jan 3, 2018 by Robin Moffatt in Kafka,. org/repos/asf/kafka. Questions: I recently upgraded to Kafka 1. **依赖)提供了AdminClient和AdminUtils可以提供部分的集群管理操作,但社区官网主页并没有给出这两个类的使用文档。. py script with PERCENT_USED_WARNING_DEFAULT = 60 and restarted my ambari server. 11 implemented KIP-117, thus providing a new type of Kafka client - org. It mostly works except that a mis-configured producer (and even consumer) causes a hard to relate OutOfMemory exception and thus causing the JVM in which the client. AdminClient, creating topics) (All cleanly deployed in fresh Docker containers. KAFKA-7369 - Handle retriable errors in AdminClient list groups API KAFKA-7379 - [streams] send. It is important to set ACLs because otherwise access to resources is limited to super users when an Authorizer is configured. Creates a batch of new Kafka topics. KAFKA-5856; Add AdminClient. High-level Consumer * Decide if you want to read messages and events from the `. The Confluent clients for Apache Kafka have passed a major milestone—the release of version 1. 11客户端集群管理工具AdminClient. NAME DESCRIPTION TYPE DEFAULT VALID VALUES IMPORTANCE; bootstrap. KAFKA-5755 - Refactor KafkaProducer to use LogContext. Apache Kafka is a distributed streaming platform that can be used to publish and subscribe to streams, store streams in a fault-tolerant way, and process streams as they occur. So far I haven't seen a python client that implements the creation of a topic explicitly without using the configuration option to create automatically the topics. Kafka Tools (Utilities) AdminClient AdminMetadataManager AdminClientRunnable AdminUtils Controller Broker. Kafka Releases: June was certainly exciting in term of releases as the community is working on 5 releases! There is of course the next major release, 2. The following producer interface and classes, org. Summary SDKs (0). consumers and producers). 1 bits on disk so i ran that kafka-consumer-group. **依赖)提供了AdminClient和AdminUtils可以提供部分的集群管理操作,但社区官网主页并没有给出这两个类的使用文档。. We got rid of that entirely by building a native executable! I made another modification to the Kafka source code and commented out the related JMX code. The API of this class is evolving, see AdminClient for details. Kafka in Action is a practical, hands-on guide to building Kafka-based data pipelines. The log helps replicate data between nodes and acts as a re-syncing mechanism for failed nodes to restore their data. 很多用户都有直接使用程序API操作Kafka集群的需求。在0. The API we've arrived at contains a bunch of new features and major improvements. Post Deployment¶ After you have deployed your cluster in production, there are some tools and best practices to keep your cluster running in good shape. sh and kafka-topics. Kafka如何彻底删除topic 环境描述 Kafka集群环境如下,三台broker,三台zookeeper,搭建在k8s上 最近搭建为客户提供kafak生产支持,客户有一个测试topic,因为之前使用的是单节点,开发在测试时创建的topic只有一个replication,一个partition,对有三个broker的集群来说这样. AdminClient class. but still I can't see the changes from the UI. Broker may not be available. **依赖)提供了AdminClient和AdminUtils可以提供部分的集群管理操作,但社区官网主页并没有给出这两个类的使用文档。. KIP-460: Admin Leader Election RPC At the moment, users can trigger preferred leader elections via the Admin API. I found some code that looks like it should do what I want. GitHub Gist: instantly share code, notes, and snippets. It may take several seconds after AdminClient#createTopics returns success for all the brokers to become aware that the topics have been created. AdminClient. sh to monitor the lag of my consumers when my cluster is kerberized. 0 or higher. KafkaOffsetMonitor是Kafka的一款客户端消费监控工具,用来实时监控Kafka服务的Consumer以及它们所在的Partition中的Offset,我们可以浏览当前的消费者组,并且每个Topic的所有Partition的消费情况都可以一目了然。. 要重现该kafka-consumer-groups功能,您需要Consumer和AdminClient实例。 首先,使用AdminClient,您可以调用listConsumerGroupOffsets()以检索主题分区列表和特定组的已提交偏移量。 然后使用Consumer来获取这些分区的End偏移量。您使用的方法效率低,无需分配和搜索结束偏移量。. KAFKA-7369 - Handle retriable errors in AdminClient list groups API KAFKA-7379 - [streams] send.