Cross Cluster Replication Upgrade for a Major Fintech Company in England
Client
The client is a global financial technology company headquartered in England. They provide a comprehensive portfolio of solutions for retail banking, transaction services, lending, treasury, and capital markets, serving banks and financial institutions worldwide.
Project Context
The client was running a self-hosted Elasticsearch cluster with version 7.17.10 and had enabled uni-directional cross-cluster replication (CCR) between primary and DR clusters. They required a version upgrade during a scheduled downtime window with minimal impact to integrated systems.
Project Objectives
- Upgrade Elasticsearch, Kibana, and Azure Repository plugin from 7.17.10 to 7.17.15
- Maintain existing CCR and licensing configurations
- Execute with minimal disruption and full rollback capability
Challenges
- Complexity of multi-node CCR configuration
- Sensitive integration with Azure Blob snapshots
- Need for seamless rollback in case of failure
Solution
- Designed a detailed upgrade and rollback strategy
- Executed rolling upgrade on the 5-node cluster
- Validated replication, snapshots, and licensing post-upgrade
Testimonial
SquareShift ensured a smooth and secure upgrade of our critical Elastic workloads.
