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ShuffleSender

laminar_core::shuffle::transport

Struct ShuffleSender 

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pub struct ShuffleSender { /* private fields */ }
Expand description

Lazy pool of outbound client-streaming calls, keyed by peer id.

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impl ShuffleSender

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pub fn new(local_id: ShufflePeerId) -> Self

Empty sender. Peers are added via Self::register_peer or discovered via the KV (in Self::with_kv) before any send_to.

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pub fn with_kv(local_id: ShufflePeerId, kv: Arc<dyn ClusterKv>) -> Self

Sender that falls back to kv (key SHUFFLE_ADDR_KEY on the peer’s own state) when send_to targets a peer not previously registered.

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pub async fn register_peer(&self, peer: ShufflePeerId, addr: SocketAddr)

Register (or update) a peer’s shuffle address.

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pub async fn send_to( &self, peer: ShufflePeerId, msg: &ShuffleMessage, ) -> Result<()>

Send msg to peer, opening a client-streaming call if necessary.

§Errors

Returns io::Error when the peer is unregistered/undiscoverable, the endpoint cannot be built, or the per-peer stream has shut down.

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pub async fn fan_out_barrier( &self, peers: &[ShufflePeerId], barrier: CheckpointBarrier, ) -> Result<()>

Ship barrier to every peer in order, short-circuiting on the first failure (the gossip side-channel is authoritative, so a partial fan-out is tolerable).

§Errors

Returns the first io::Error from any peer’s send_to.

Trait Implementations§

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impl Debug for ShuffleSender

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

Formats the value using the given formatter. Read more

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