Vlad Lazar 7a796a9963 storcon: introduce step down primitive (#8512) ...

## Problem
We are missing the step-down primitive required to implement rolling
restarts of the storage controller.

## Summary of changes
Add `/control/v1/step_down` endpoint which puts the storage controller
into a state where it rejects
all API requests apart from `/control/v1/step_down`, `/status` and
`/metrics`. When receiving the request,
storage controller cancels all pending reconciles and waits for them to
exit gracefully. The response contains
a snapshot of the in-memory observed state.

Related:
* https://github.com/neondatabase/cloud/issues/14701
* https://github.com/neondatabase/neon/issues/7797
* https://github.com/neondatabase/neon/pull/8310

2024-07-26 14:54:09 +01:00

..

client

storage scrubber: GC ancestor shard layers (#8196)

2024-07-19 19:07:59 +03:00

migrations

Clean up 'attachment service' names to storage controller (#7326)

2024-04-05 16:18:00 +01:00

src

storcon: introduce step down primitive (#8512)

2024-07-26 14:54:09 +01:00

Cargo.toml

storcon: add drain and fill background operations for graceful cluster restarts (#8014)

2024-06-19 11:55:30 +01:00