Knowledge Base

Tips & Tutorials

• How to Deploy Stateful Functions Application in Ververica Platform
• How to Use My Own Service Account in Ververica Platform
• How to Make Sure My Deployment Always Restore From the Latest State
• How to Secure User Credentials in Ververica Platform when Connecting to SASL-Secured Kafka Cluster
• How to increase Ververica Platform's artifact upload limit
• How to setup RBAC in Ververica Platform using Dex & LDAP

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Troubleshooting

• Direct buffer OutOfMemoryError when using Kafka Connector in Flink
• 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

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Frequently Asked Questions (FAQs)

• How Ververica Platform's and Apache Flink's Kubernetes HA Work and Where They Differ
• 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