KRaft – Apache Kafka Without ZooKeeper SASL_SSL failed due to authentication error
I try to start new Kafka Kraft cluster in version 3.7.1 with SASL_SSL. During startup I’ve got an errors:
KRaft – Apache Kafka Without ZooKeeper SASL_SSL failed due to authentication error
I try to start new Kafka Kraft cluster in version 3.7.1 with SASL_SSL. During startup I’ve got an errors:
Kafka kraft cluster setup
Im having alot of difficulty migrating my zookeeper cluster to kraft.
How to sequentially start multi-node kafka cluster (in KRaft node) in java where each node plays both the roles (i.e. controller and broker)?
When I try to run the my implementation, I got the following error:-
Error Starting Multiple Kafka Brokers with KRaft using Docker Compose: Metadata and Checkpoint File Issues
When attempting to deploy multiple Kafka brokers using Docker Compose with KRaft consensus protocol, the setup fails to initialize correctly. Each Kafka broker is configured to use KRaft (KAFKA_CFG_PROCESS_ROLES=controller,broker), with listeners and advertised listeners defined for each node (kafka-1, kafka-2, kafka-3). Despite configuring these settings, the brokers encounter errors related to metadata file creation (Error while writing meta.properties file) during startup. These errors prevent the brokers (kafka-2 and kafka-3) from fully initializing and cause them to exit with code 1. The setup works when deploying a single broker (kafka-1), suggesting that the issue specifically pertains to configuring multiple brokers with KRaft using Docker Compose.
Kafka cluster. Kraft mode.Constantly changing controller, lots of errors
We have many projects related to Kafka. On one of them, a couple of years ago they raised a cluster of 3 Kafka with version 3.3.1. And everything in general was fine, when suddenly I recently planned to raise a connector on it from the database and before that I decided to look at the logs.. And so there is an endless change of controllers and errors, and so on endlessly.. At the same time, I can create a topic and delete it too. Clients and the sender interact without problems, they do not observe any errors.
Kafka Kraft cluster logs indicating potential issues
Currently I am running cluster of 3 Kafka machines. Two of those are hosted in same data center and last one is in different. At the end of post I will include node property file and jvm params.
Kafka Kraft Controller fails with No subject alternative DNS name matching found
I am running Kafka version 3.7 in Kraft mode with 3 controllers and 3 brokers as docker containers (running on separate/distinct hosts).
Relevant controller configurations from one of the controllers:
Kafka in kraft mode: Timed out waiting for a node assignment. Call: listTopics
I am trying to setup two nodes in my kafka cluster under the kraft protocol.
I downloaded a kafka zip from the offical website, unzipped it on my Ubuntu that is running on as a VM with windows OS being the host.