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flink-k8s-ha's Introduction

Flink Kubernetes HA

An implementation of Flinks HighAvailabilityServicesFactory for clusters running on Kubernetes.

This project is currently work in progress.

Assumptions made:

  • Only one JobManager is running at a time (achieved through K8s 'Recreate' deployment strategy)

To use multiple JobManagers the Kubernetes Leader Election mechanism (Fabric8 Example) could be implemented.

Not yet implemented:

  • CompletedCheckpointStore (currently only in-memory)
  • CheckpointIDCounter (currently only in-memory)

Testing

The helm-chart-flink repo is used for local Flink + S3 deployment.

flink-k8s-ha's People

Contributors

thmshmm avatar

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