Allows to track overall R/W errors in real time through Prometheus.
Will follow up with a PR for Seaweed's REST API.
Co-authored-by: Lisandro Pin <lisandro.pin@proton.ch>
* Boostrap persistent state for volume servers.
This PR implements logic load/save persistent state information for storages
associated with volume servers, and reporting state changes back to masters
via heartbeat messages.
More work ensues!
See https://github.com/seaweedfs/seaweedfs/issues/7977 for details.
* Block RPC operations writing to volume servers when maintenance mode is on.