Knowledge Base

Tips & Tutorials

• Kubernetes Requirements
• How to Connect a Profiler/JMX to Ververica Platform containers
• How to integrate Hashicorp Vault with Ververica Platform
• How to modify Ververica Platform's logging configuration
• How to set up Ververica Platform with Google Cloud Storage (GCS)
• How to get RocksDB's LOG file back for advanced troubleshooting

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Troubleshooting

• StateMigrationException: The new key serializer must be compatible
• Ververica Platform Deployments stuck in Transitioning state when running in a different namespace
• Multiple Jobs are Started from one Ververica Platform Deployment
• JobManager and TaskManagers fail with org.rocksdb.RocksDBException "Not supported"
• Deployments do not properly shutdown on Ververica Platform
• Deployment fails with: Invalid Flink cluster version: (expected: X.Y)

Frequently Asked Questions (FAQs)

• Should I call uid() after addSource() or addSink()?
• Can the Grafana config be put outside of values.yaml?
• What happens if a task manager is lost?
• Can I scale my Flink job dynamically at runtime?

Known Issues

• Deployments with a very large deployment specification may get stuck
• Failure to start Ververica Platform due to left-over lock