Managing Data Migration

[vigneshhari]

Create a best practice doc for migrations that involve structural and data changes.

Edge Cases to think about. -

• Deployments are not always performed by the core team, migrations should be self-sufficient in the sense that it should not need any external changes
• Deployments need not happen in sync with development, Deployments for some instances might happen only once in a quarter, which other instances might deploy every week. We need to understand how this impacts migrations and work around them to avoid downtime in critical systems.