John Spray ea5a97e7b4 pageserver: implement emergency mode for operating without control plane (#5469) ...

## Problem

Pageservers with `control_plane_api` configured require a control plane
to start up: in an incident this might be a problem.

## Summary of changes

Note to reviewers: most of the code churn in mgr.rs is the refactor
commit that enables the later emergency mode commit: you may want to
review commits separately.

- Add `control_plane_emergency_mode` configuration property
- Refactor init_tenant_mgr to separate loading configurations from the
main loop where we construct Tenant, so that the generations fetch can
peek at the configs in emergency mode.
- During startup, in emergency mode, attach any tenants that were
attached on their last run, using the same generation number.

Closes: #5381 
Closes: https://github.com/neondatabase/neon/issues/5492

2023-10-06 17:25:21 +01:00

..

benches

fix: replace all std::PathBufs with camino::Utf8PathBuf (#5352)

2023-10-04 17:52:23 +03:00

ctl

fix: replace all std::PathBufs with camino::Utf8PathBuf (#5352)

2023-10-04 17:52:23 +03:00

fixtures

walredo: simple tests and bench updates (#3045)

2023-01-16 18:24:45 +02:00

src

pageserver: implement emergency mode for operating without control plane (#5469)

2023-10-06 17:25:21 +01:00

Cargo.toml

fix: replace all std::PathBufs with camino::Utf8PathBuf (#5352)

2023-10-04 17:52:23 +03:00