Kafka port 9091. Results can be extrapolated for a larger cluster.
Kafka port 9091 apiVersion: kafka. ) Learn about inter-broker and ZooKeeper security. Jul 29, 2024 · I am trying to run kafka in KRaft mode, but keep running into errors. Since Kafka nodes are independent, these tests are run with a single producer, consumer, and broker machine. We use the Confluent docker image for Kafka and configures the Kafka node to communicate with the Zookeeper node. properties file. As Jakub explained, Strimzi uses the port 9091 for components like topic operator, user operator, kafka exporter and others to connect to the Kafka cluster. The same port number may be unofficialy used by various services or applications. The name and port must be unique within the Kafka cluster. In a deployment with a L4 proxy in front of the Kafka cluster, it is important, that the advertised port can be different from the actual socket port. If on the same OpenShift cluster, each list must ideally contain the Kafka cluster bootstrap service which is named CLUSTER-NAME-kafka-bootstrap and a port Feb 3, 2024 · Port 9092 is forwarded to one of the Kafka broker hosts. Refer https://docs. Mar 8, 2021 · Confluent Kafka (Community) mentions port 9091 is required for inter broker communication. 333 you obviously have to provide you IP address of your Kafka broker here !!! Frequently asked questions and answers about restarting, stopping, or checking the status of your Kafka operation. The following configuration is replicated three times with hostname kafka1, kakfa2, and kafka3 on port 9091, 9092, and 9093. By default Cloudera Manager automatically configures the ports and the protocols used by the brokers to listen to requests. Connect the clients to the cluster: Producers using the Kafka Producer API. This way it doesn't interfere with other ports (i. Is it inside the docker network of Kafka? or outside? May 28, 2018 · A developer provides a quick tutorial on how to set up your Apache Kafka dev environment so that you can create as many clusters as you need for a project. 0. , NodePort/LoadBalancer services). properties to choose the port 9091 for one broker and for another broker using 9092 an Jul 30, 2020 · Notice that in addition to inter-broker replication (over port 9091) and un-encrypted internal (within Kubernetes cluster) client access over non TLS port 9092, appropriate listener config has Jan 7, 2025 · Bug Description After the Kafka service deployed in EKS exposes port 9091~9093 to the public network through CLB, an exception is prompted when connecting to Kafka through the springboot client： 20 KAFKA_LISTENERS is a comma-separated list of listeners and the host/IP and Kafka port to which Kafka binds to for listening. Here is my best attempt so far (I used GPT to generate this as I failed to find the relevant parts of the documentation): docker- May 3, 2024 · In this article, we’ll explore how to monitor Apache Kafka using Prometheus and Grafana with JMX Exporter, providing insights into Kafka’s performance and health metrics. 111. A KRaft It will run a producer benchmark, connecting to Kafka (unauthenticated) on port 9091 on IP 000. b. Aug 1, 2022 · The broker is receiving an SSL connection on port 9091 which the SSL listener is bound to. html. Use the jmxOptions property to configure a password-protected or an unprotected JMX port. Get JMX metrics from Kafka brokers, ZooKeeper nodes, Kafka Connect, and MirrorMaker 2. I tested it with a Docker-Compose setup which runs 3 Kafka Broker in Kraft mode and an Envoy proxy in front of them. Jun 27, 2019 · When I started with Kafka, I had some questions about connectivity, and ran into seemingly inexplicable issues when trying to set up port forwarding for clients that have no direct access to the brokers or zookeeper. Jan 5, 2021 · 01-05-2021 01:16 PM I see Kafka streaming is using port 9093 but in the PA 5220 does not identify it as kafka (unknown TCP). Learn about their differences and use cases. 1, and Kafka perhaps runs on this host at port 9092. This topic provides Kafka and Confluent Platform configuration parameters for Kafka brokers and KRaft controllers. Here we discussed the Introduction, What is Kafka port, How to find it with services. Mar 21, 2024 · From ZooKeeper to KRaft: How the Kafka migration works March 21, 2024 by Paolo Patierno The Apache Kafka project has been using Apache ZooKeeper to store metadata since its inception. Ports 9092, 9093, 9094 are user listeners without any configured peers and are accessible to everyone by default Kafka Connection Properties Kafka Event Source Properties Kafka Event Target Properties Configuring Kerberos Authentication for a Kafka Client Kafka Process Creation Rules and guidelines for Kafka connection Nov 23, 2020 · I want to access my Kafka cluster using nodeport. May 5, 2023 · Port 9092 is typically used for Kafka Broker, a distributed messaging system that allows producers to write data to topics and consumers to read data from topics. Kafka Broker and Controller Configuration Reference for Confluent Platform Confluent Platform is a data-streaming platform that completes Kafka with advanced capabilities designed to help accelerate application development and connectivity for enterprise use cases. We run producer and Nov 25, 2020 · The configuration for Kafka broker nodes. Maybe that Kafka broker host has the address 192. However, manual configuration is possible and may be required in an advanced deployment. Data replication between brokers, as well as internal connections to the brokers from Streams for Apache Kafka operators, Cruise Control, and the Kafka Exporter, use the replication listener on port 9091. If deployed by Strimzi but on different Kubernetes clusters, the list content depends on the approach used for exposing the clusters (routes, ingress, nodeports or loadbalancers). These listeners are not configurable and use mTLS authentication by default. For more complex networking, this might be an IP address associated with a given network interface on a machine. I'd like to see the app what's connecting to Kafka. 9092) used by your clients. examples with code implementation. During my search I noticed that I wasn’t the only one struggling with this, so I decided to dedicate a short blog to this topic after I figured it out. Apache Kafka: A Distributed Streaming Platform. What should be the firewall rules for this port on AWS . g. Here is my CRD using which I am trying to expose Kafka using nodeport. Enter 9091 in the “Port range” field (n. io/platform/current/installation/system-requirements. Performance Results The following tests give some basic information on Kafka throughput as the number of topics, consumers and producers and overall data size varies. strimzi. They can also refer to a Kafka cluster not deployed by Streams for Apache Kafka. Apr 22, 2021 · Port 9091 is accessible only by Strimzi components, operators, Kafka Exporter, Cruise Control etc. Jan 23, 2025 · Follow this guide to pre-configure a connection to hosts in an Apache Kafka® cluster. By specifying a unique name and port for each listener, you can configure multiple listeners. The name can be up to 25 characters long, comprising lower-case letters and numbers. Nov 5, 2025 · To communicate with brokers in plaintext, use port 9092. is there a way for PA to append it to kafka app ID ? I already added as a custom app but i think i am missing something since i still see it as a unknown tcp. Connecting inside of k8s cluster is working by this my-cluster-ka advertises on the PUBLIC listener envoy-kafka-broker:19092, however I would expect that envoy-kafka-broker:9091 is advertised. The bootstrap server lists can refer to Kafka clusters that are not deployed in the same OpenShift cluster. Oct 14, 2025 · In the realm of Apache Kafka, monitoring the lag of consumer groups is crucial for ensuring the efficient and reliable operation of your Kafka - based systems. If on the same Kubernetes cluster, each list must ideally contain the Kafka cluster bootstrap service which is named CLUSTER-NAME -kafka-bootstrap and a port number. e. Ports those registered with IANA are shown as official ports. Results can be extrapolated for a larger cluster. Can somebody explain the difference between listeners and advert Mar 15, 2023 · Guide to Kafka Port. Jan 23, 2025 · You can connect to an Apache Kafka® cluster both with encryption (SASL_SSL, port 9091) and without it (SASL_PLAINTEXT, port 9092). The official usage are listed separately below its usage may change from time to time Jul 12, 2022 · I cannot see any pre-req required for KAFKA exporter to work, Am I missing anything so that I can see KAFKA pods having port: tcp-prometheus - 9409 also as part of the pod? how who or when will my KAFKA pods start to expose data via port: tcp-prometheus (assuming its 9409?) ? Do I need to do some pre-req? Jul 12, 2022 · I cannot see any pre-req required for KAFKA exporter to work, Am I missing anything so that I can see KAFKA pods having port: tcp-prometheus - 9409 also as part of the pod? how who or when will my KAFKA pods start to expose data via port: tcp-prometheus (assuming its 9409?) ? Do I need to do some pre-req? Jun 20, 2024 · Kafka 9092 vs 9093: Comparison of two popular ports for Apache Kafka messaging system. Setup: 3 node broker , 3 node zookeeper. Kafka exposes ports 9090 and 9091 for inter-broker communication as well as communication with Cruise Control and the operators. the app-id DB is showing kafka with tcp port 9092. ZooKeeper stores essential data for running a Kafka cluster, such as registered brokers, the current controller, and topic configuration. Mar 15, 2023 · Guide to Kafka Port. There are two settings I don't understand. Kafka brokers can simultaneously listen to connection requests on multiple ports with various protocols. To connect to an Apache Kafka® cluster: Create users for clients (producers and consumers) with access to the required topics. 222. 168. Dec 12, 2018 · Hi, I'm new to both kafka and kubernetes, I've read docs and found some issues about expose kafka, but I couldn't make it happened. Port 9091 is the Kafka Broker listener port. The broker provides the client with its advertised address for the SSL listener Inter-broker security Kafka exposes ports 9090 and 9091 for inter-broker communication as well as communication with Cruise Control and the operators. This port will not change, and can be verified on your Kafka cluster’s Connection Info page. It allows you to expose Kafka consumer group lag metrics in a format that can be easily scraped by Prometheus, a popular monitoring and alerting toolkit . confluent. To get Kafka running, you need to set some properties in config/server. Bitnami’s Kafka Helm chart opens port 9094 on broker containers for external client access. Mar 14, 2021 · Trying to set a kafka cluster on a single machine following some online tutorials and edited the config/server. The Lightbend Kafka Lag Exporter is a powerful tool that helps in this regard. by connecting to port 9999. In ZooKeeper mode it works as expected. io/v1beta1 kind: Kafka metadata: name: my-cluster Port 9092 tcp/udp information, assignments, application use and known security risks. When connecting via PrivateLink, this port is load balanced between all broker nodes in your cluster. As a result, only clients that have access to the certificate secrets can access Kafka through these listeners. We also specify the port for connection- KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS=kafka-0:9091,kafka-1:9091,kafka-2:9091# indicate which protocol will be used to connect to the listed brokers- KAFKA The Strimzi/Red Hat AMQ Streams operator exposes Kafka brokers on 9094 for the external TLS listener in Kubernetes (e. To communicate with brokers with TLS encryption, use port 9094 for access from within AWS and port 9194 for public access. dpfe2yydi4m9gggyoaj8ams6efsvxvmedqgpjj0ucs