Struct ShardingConfig 

pub struct ShardingConfig {
    pub num_shards: u64,
    pub allocation_buffer: usize,
    pub request_timeout: Duration,
    pub command_buffer: usize,
    pub role_constraint: Option<String>,
    pub agent_role: String,
    pub coordinator_tick: Duration,
    pub rebalance_per_round: usize,
    pub passivation_idle_timeout: Option<Duration>,
    pub handoff_drain_delay: Duration,
    pub remember_entities: RememberEntitiesConfig,
}

Configuration for one sharding region.

Fields

num_shards: u64

Default shard count used by DefaultShardExtractor.

allocation_buffer: usize

Maximum envelopes buffered per shard while an allocation request is in flight.

request_timeout: Duration

Bounded wait for coordinator, peer-region, and ask requests.

command_buffer: usize

Region command queue capacity.

role_constraint: Option<String>

Optional role that shard-owning nodes must advertise.

agent_role: String

Cluster-agent role used to discover C2-capable peers.

coordinator_tick: Duration

Coordinator takeover/rebuild poll interval.

rebalance_per_round: usize

Maximum graceful rebalance moves the coordinator may initiate per round.

Dead-owner reallocations are not capped; this limit applies to coordinator-initiated spread after a node joins.

passivation_idle_timeout: Option<Duration>

Optional idle timeout after which a local entity actor is passivated.

The next message for the entity respawns it on demand.

handoff_drain_delay: Duration

Delay before a region drains envelopes buffered for a moving shard.

remember_entities: RememberEntitiesConfig

Remember-entities store and write-behind policy.

Disabled by default. Entity types must also be registered through ShardingHandle::register_remembered_entity_type before their ids are written to or recovered from the store.

Trait Implementations

impl Clone for ShardingConfig

fn clone(&self) -> ShardingConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ShardingConfig

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

Formats the value using the given formatter.

impl Default for ShardingConfig

fn default() -> Self

Returns the “default value” for a type.