Monday is a blog or publication focused on productivity, time management, and personal development. Readers can find articles on topics such as goal setting, task prioritization, and habit formation. Additionally, they can learn about productivity tools, techniques for optimizing workflow, and strategies for achieving work-life balance.

monday Engineering

A detailed walkthrough of migrating production K8ssandra (Cassandra on Kubernetes) clusters from legacy EKS clusters to new ones without downtime or data loss. The migration involved creating new K8ssandra clusters, manually replicating system_auth keyspaces, running nodetool rebuild operations across nodes using Temporal workflows for reliability, adding new data centers using K8ssandra annotations, and safely decommissioning old data centers by updating replication strategies and removing nodes from the Cassandra ring.

Zero-Downtime Cassandra Migration Between EKS Clusters

Our plan to overcome migrating a stateful workload

Create a new K8ssandra cluster with one K8ssandra data center

Expanding the cluster with a new data center and safely removing the old ones