Zero-downtime Redis to ElastiCache migration (martech SaaS, NDA)
- Replication-based sync kept both caches current
- Circuit breaker in the application path to fail safe
- Traffic cut over in stages, verified at each step
0 minutes of user-facing downtime
Cloud
Cloud Migration Services
Migrations fail in predictable ways: a copy that missed the database, DNS that took a day to propagate, a certificate nobody re-issued, and a rollback plan that existed only in somebody's head.
No sales layer, no juniors. You meet the engineer before anything begins.
// What is included
What you get
- Everything copied and verified on the destination before anything switches
- DNS moved with a low TTL, so a mistake costs minutes and not days
- The rollback step written down before the work starts
- The source environment left intact until you have confirmed the new one
// How it runs
The sequence
- 01
Inventory
What moves, what it depends on, and what must not go down.
- 02
Replicate
Stand up and verify the destination while the old one still serves.
- 03
Cut over
Staged switch, verified at each step, with a way back at every stage.
// Stack
- AWS
- GCP
- Azure
- Terraform
- Amazon ElastiCache
- Amazon RDS
// Related work
Where this has been done before
Client names under NDA. The numbers are not.
Self-hosted infrastructure retired onto managed services (NDA)
- Self-managed Kubernetes to ECS and Fargate
- Configuration store to Parameter Store and Secrets Manager
- Artifact repository to ECR and CodeArtifact
Four self-maintained components retired
// Questions
Before you ask
// Also in Cloud
Related services
Talk to the engineer who would do the work
A 20 minute call. You describe your setup, you get an honest read on whether this helps, and the top risks worth looking at first.