Module preflight 

Preflight checks for deployments.

Structs

CatchupConfig

Configuration for catching up and promoting a read-only deployment.

Functions

check_ddl_changes 🔒

Check if there have been any DDL that create new collections or replicas, restart in read-only mode if so, in order to pick up those new items and start hydrating them before cutting over.

get_next_ids

Returns the next user item and replica IDs based on existing catalog objects.

preflight_0dt

Returns whether this deployment should boot in read-only mode.

spawn_catchup

Starts catching up and promoting a read-only deployment.