Struct MetadataCompactionLeaseState 

pub struct MetadataCompactionLeaseState {
    pub job_id: MetadataCompactionId,
    pub namespace_id: NamespaceId,
    pub owner_id: String,
    pub status: MetadataCompactionLeaseStatus,
    pub started_at_ms: u64,
    pub heartbeat_at_ms: u64,
}

Says who owns the objects under one streaming metadata compaction’s job prefix.

The lease carries lifecycle ownership and nothing else: no cursor, no output descriptor, no offset, no progress. Two parties write it. The job creates it, refreshes it by compare-and-swap while it runs, and stops writing it once its output is published. Garbage collection claims an expired lease by compare-and-swap and reclaims the prefix behind it (format spec, “Garbage collection”, rule 12). Whoever wins that compare-and-swap owns the prefix; the loser has lost it for good.

Nothing about a job’s correctness depends on the object surviving — a job that loses its lease loses its output to a later pass and runs again, which is what every other way a job can end already costs.

Fields

job_id: MetadataCompactionId

Job this lease belongs to, which is also the prefix its output sits under.

namespace_id: NamespaceId

Namespace whose family group the job is rebuilding.

owner_id: String

Writer identity the job runs under, for an operator reading the object.

status: MetadataCompactionLeaseStatus

Who owns the prefix: the job that wrote the lease, or the collector that claimed it.

started_at_ms: u64

Unix-millisecond stamp of the job’s first lease write.

heartbeat_at_ms: u64

Unix-millisecond stamp of the most recent lease write, and the only input to whether an active lease has expired.

Trait Implementations

impl Clone for MetadataCompactionLeaseState

fn clone(&self) -> MetadataCompactionLeaseState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetadataCompactionLeaseState

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MetadataCompactionLeaseState

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for MetadataCompactionLeaseState

impl PartialEq for MetadataCompactionLeaseState

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for MetadataCompactionLeaseState

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 MetadataCompactionLeaseState