Struct ObservedInstance 

pub struct ObservedInstance {
    pub handle: InstanceHandle,
    pub node: u64,
    pub backend: String,
    pub endpoint: Endpoint,
    pub region: Option<String>,
    pub healthy: bool,
    pub started_at: Option<u64>,
    pub phase: ReplicaPhase,
    pub snapshot: Option<Snapshot>,
}

An observed replica (the persisted control-plane state at compute_state/<workload>/<replica>; also the gateway’s upstream source). Usually Running; a scale-to-zero replica persists in the Zero phase carrying its snapshot.

Fields

handle: InstanceHandle

The replica’s handle.

node: u64

The node it runs on (for Zero, the node holding its snapshot — restore is same-node until live migration lands).

backend: String

The backend that runs it.

endpoint: Endpoint

The endpoint the gateway routes to (the last-known endpoint while Zero).

region: Option<String>

The region of the node this replica runs on, denormalized from Node::region at launch so the gateway’s nearest-replica LB (FA-8) can tag the replica’s endpoint without a node lookup. #[serde(default)] keeps older records (no field) deserializing — schema stays v1.

healthy: bool

Whether the last health check passed (always false while Zero).

started_at: Option<u64>

Wall-clock unix seconds the replica was launched, set by launch_one. The reconcile loop uses it to give a freshly launched replica a startup grace (see ComputeSpec::startup_grace_secs) before treating a Running-but-unhealthy replica as a broken launch to stop + relaunch — so a slow-initializing image is not killed mid-init. None (older records, or a restored replica) is treated as past-grace, preserving the prior immediate-relaunch behavior. #[serde(default)] keeps older records deserializing — schema stays v1.

phase: ReplicaPhase

Lifecycle phase. #[serde(default)] keeps older records (no field) deserializing as Running — schema stays v1.

snapshot: Option<Snapshot>

The snapshot to restore from — Some iff phase == Zero.

Trait Implementations

impl Clone for ObservedInstance

fn clone(&self) -> ObservedInstance

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ObservedInstance

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ObservedInstance

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ObservedInstance

impl PartialEq for ObservedInstance

fn eq(&self, other: &ObservedInstance) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for ObservedInstance

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ObservedInstance