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Troubleshoot Confluent for Kubernetes

  • Overview
  • Common Deployment Issues
  • Common Configuration Issues
  • Common Upgrade Issues
  • Common Migration Issues
  • Common Authentication Issues
  • Common Networking Issues
  • Known Issues
  • Support Bundle and Diagnostics
Ask the community Confluent Support Portal Last published: Sep 11, 2026
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Table of contents

CONFLUENT FOR KUBERNETES

  • Concepts
    • Overview
    • How CFK Works
    • Terminology
  • Get Started
    • Overview
    • Quick Start with KRaft
    • Quick Start with ZooKeeper
    • Quick Start to Install the Confluent kubectl Plugin
  • Plan for Production
    • Overview
    • Pre-Deployment Checklist
    • Supported Environments and Versions
    • Namespace and RBAC Strategy
    • Plan Storage
    • Plan Networking
    • Plan Security
    • Plan Capacity and Sizing
    • Plan Log Retention and Deployment Constraints
  • Deploy and Configure CFK
    • Overview
    • Deploy CFK
    • Deploy CFK with Custom Values
    • Manage Licenses
    • Use Custom Image Registries
    • Configure Operator Scope and Namespaces
    • Configure CFK-Level Settings
    • Install the Confluent kubectl Plugin
  • Configure Confluent Platform
    • Overview
    • Configure Storage
    • Configure CPU and Memory
    • Configure Networking
      • Overview
      • Configure Load Balancers
      • Configure Node Ports
      • Configure Port-Based Static Access
      • Configure Host-Based Static Access
      • Configure Routes
    • Configure Security
      • Overview
      • Authentication
        • Overview
        • Configure Authentication for Kafka, KRaft, and MDS
        • Configure Authentication for Confluent Components
      • Authorization
        • Overview
        • Configure RBAC
        • Configure Simple ACLs
      • Network Encryption
      • Security Compliance
      • Credentials and Certificates
    • Configure Pod Scheduling
    • Configure Connect
    • Configure Replicator
    • Configure Rack Awareness
    • Configure REST Proxy
    • Configure KRaft
    • Configure Dynamic KRaft Quorum
    • Configure Unified Stream Manager
    • Advanced Configuration
  • Deploy Confluent Platform
  • Manage Confluent Platform
    • Overview
    • Manage Flink
      • Overview
      • Global Flink Resources
      • Manage Flink Environments
        • Manage Flink Applications
        • Manage Flink SQL
    • Manage Kafka Admin REST Class
    • Manage Kafka Topics
    • Manage Schemas
      • Manage Schemas
      • Link Schemas
      • Schema Registry Switchover using Unified Stream Manager
    • Manage Connectors
    • Scale Clusters
    • Scale Storage
    • Link Kafka Clusters
    • Manage Security
      • Overview
      • Manage Authentication
      • Manage RBAC
      • Manage Certificates
      • Manage Password Encoder Secret
    • Configure Observer Container
    • Restart Confluent Components
    • Delete Confluent Deployment
    • Manage Confluent Cloud
  • Monitor Confluent Platform
  • Migrate to KRaft
    • Overview
    • Migration Phases and Sub-phases
    • Prerequisites
    • Migrate a single cluster
    • Migrate a multi-region cluster
    • Roll Back to ZooKeeper
    • Troubleshoot
    • Known Issues
    • Quick Command Reference
    • Migrate On-Premise Deployment to Confluent for Kubernetes
    • Migrate from Operator to Confluent for Kubernetes
  • Upgrade
    • Overview
    • Example: A Multi-Version Upgrade
    • Pre-upgrade Tasks and Known Issues
    • Upgrade Confluent for Kubernetes
    • Upgrade Confluent Platform
    • Upgrade Control Center
  • Deployment Scenarios
    • Overview
    • Multi-AZ Deployment
    • Multi-Region Deployment
    • Disaster Recovery
    • Hybrid Deployment with Confluent Cloud
  • Troubleshoot
    • Overview
    • Common Deployment Issues
    • Common Configuration Issues
    • Common Upgrade Issues
    • Common Migration Issues
    • Common Authentication Issues
    • Common Networking Issues
    • Known Issues
    • Support Bundle and Diagnostics
  • Manage Confluent Gateway
    • Overview
    • Deploy Confluent Gateway
    • Configure Security for Confluent Gateway
    • Troubleshoot CFK Deployments
  • Reference
    • Overview
    • API Reference
    • Confluent Plugin Reference
    • Glossary
  • Release Notes
Troubleshoot Confluent for Kubernetes
Get started
    Home Confluent Cloud Confluent Platform Connectors Clients

    CONFLUENT FOR KUBERNETES

    • Concepts
      • Overview
      • How CFK Works
      • Terminology
    • Get Started
      • Overview
      • Quick Start with KRaft
      • Quick Start with ZooKeeper
      • Quick Start to Install the Confluent kubectl Plugin
    • Plan for Production
      • Overview
      • Pre-Deployment Checklist
      • Supported Environments and Versions
      • Namespace and RBAC Strategy
      • Plan Storage
      • Plan Networking
      • Plan Security
      • Plan Capacity and Sizing
      • Plan Log Retention and Deployment Constraints
    • Deploy and Configure CFK
      • Overview
      • Deploy CFK
      • Deploy CFK with Custom Values
      • Manage Licenses
      • Use Custom Image Registries
      • Configure Operator Scope and Namespaces
      • Configure CFK-Level Settings
      • Install the Confluent kubectl Plugin
    • Configure Confluent Platform
      • Overview
      • Configure Storage
      • Configure CPU and Memory
      • Configure Networking
        • Overview
        • Configure Load Balancers
        • Configure Node Ports
        • Configure Port-Based Static Access
        • Configure Host-Based Static Access
        • Configure Routes
      • Configure Security
        • Overview
        • Authentication
          • Overview
          • Configure Authentication for Kafka, KRaft, and MDS
          • Configure Authentication for Confluent Components
        • Authorization
          • Overview
          • Configure RBAC
          • Configure Simple ACLs
        • Network Encryption
        • Security Compliance
        • Credentials and Certificates
      • Configure Pod Scheduling
      • Configure Connect
      • Configure Replicator
      • Configure Rack Awareness
      • Configure REST Proxy
      • Configure KRaft
      • Configure Dynamic KRaft Quorum
      • Configure Unified Stream Manager
      • Advanced Configuration
    • Deploy Confluent Platform
    • Manage Confluent Platform
      • Overview
      • Manage Flink
        • Overview
        • Global Flink Resources
        • Manage Flink Environments
          • Manage Flink Applications
          • Manage Flink SQL
      • Manage Kafka Admin REST Class
      • Manage Kafka Topics
      • Manage Schemas
        • Manage Schemas
        • Link Schemas
        • Schema Registry Switchover using Unified Stream Manager
      • Manage Connectors
      • Scale Clusters
      • Scale Storage
      • Link Kafka Clusters
      • Manage Security
        • Overview
        • Manage Authentication
        • Manage RBAC
        • Manage Certificates
        • Manage Password Encoder Secret
      • Configure Observer Container
      • Restart Confluent Components
      • Delete Confluent Deployment
      • Manage Confluent Cloud
    • Monitor Confluent Platform
    • Migrate to KRaft
      • Overview
      • Migration Phases and Sub-phases
      • Prerequisites
      • Migrate a single cluster
      • Migrate a multi-region cluster
      • Roll Back to ZooKeeper
      • Troubleshoot
      • Known Issues
      • Quick Command Reference
      • Migrate On-Premise Deployment to Confluent for Kubernetes
      • Migrate from Operator to Confluent for Kubernetes
    • Upgrade
      • Overview
      • Example: A Multi-Version Upgrade
      • Pre-upgrade Tasks and Known Issues
      • Upgrade Confluent for Kubernetes
      • Upgrade Confluent Platform
      • Upgrade Control Center
    • Deployment Scenarios
      • Overview
      • Multi-AZ Deployment
      • Multi-Region Deployment
      • Disaster Recovery
      • Hybrid Deployment with Confluent Cloud
    • Troubleshoot
      • Overview
      • Common Deployment Issues
      • Common Configuration Issues
      • Common Upgrade Issues
      • Common Migration Issues
      • Common Authentication Issues
      • Common Networking Issues
      • Known Issues
      • Support Bundle and Diagnostics
    • Manage Confluent Gateway
      • Overview
      • Deploy Confluent Gateway
      • Configure Security for Confluent Gateway
      • Troubleshoot CFK Deployments
    • Reference
      • Overview
      • API Reference
      • Confluent Plugin Reference
      • Glossary
    • Release Notes