Enum VShardMessageType 

#[repr(u16)]
pub enum VShardMessageType {
    SegmentChunk = 1,
    SegmentComplete = 2,
    WalTail = 3,
    RoutingUpdate = 4,
    RoutingAck = 5,
    GhostCreate = 10,
    GhostDelete = 11,
    GhostVerifyRequest = 12,
    GhostVerifyResponse = 13,
    MigrationBaseCopy = 20,
    GsiForward = 22,
    EdgeValidation = 23,
    GraphAlgoSuperstep = 30,
    GraphAlgoContributions = 31,
    GraphAlgoSuperstepAck = 32,
    GraphAlgoComplete = 33,
    TsScatterRequest = 40,
    TsScatterResponse = 41,
    TsRetentionCommand = 42,
    TsRetentionAck = 43,
    TsArchiveCommand = 44,
    TsArchiveAck = 45,
    VectorScatterRequest = 50,
    VectorScatterResponse = 51,
    VectorCoarseRouteRequest = 52,
    VectorCoarseRouteResponse = 53,
    VectorBuildExchangeRequest = 54,
    VectorBuildExchangeResponse = 55,
    VectorMemRegionRequest = 56,
    VectorMemRegionResponse = 57,
    SpatialScatterRequest = 60,
    SpatialScatterResponse = 61,
    CrossShardEvent = 70,
    CrossShardEventAck = 71,
    NotifyBroadcast = 72,
    NotifyBroadcastAck = 73,
    ArrayShardSliceReq = 80,
    ArrayShardSliceResp = 81,
    ArrayShardAggReq = 82,
    ArrayShardAggResp = 83,
    ArrayShardPutReq = 84,
    ArrayShardPutResp = 85,
    ArrayShardDeleteReq = 86,
    ArrayShardDeleteResp = 87,
    ArrayShardSurrogateBitmapReq = 88,
    ArrayShardSurrogateBitmapResp = 89,
}

Message types for vShard wire protocol.

Variants

SegmentChunk = 1

Phase 1: Segment file chunk during base copy.

SegmentComplete = 2

Phase 1: Segment transfer complete marker.

WalTail = 3

Phase 2: WAL tail entries for catch-up.

RoutingUpdate = 4

Phase 3: Routing table update (atomic cut-over).

RoutingAck = 5

Routing table acknowledgement.

GhostCreate = 10

Ghost stub creation notification.

GhostDelete = 11

Ghost stub deletion notification.

GhostVerifyRequest = 12

Anti-entropy sweep query.

GhostVerifyResponse = 13

Anti-entropy sweep response.

MigrationBaseCopy = 20

Migration base-copy segment data.

GsiForward = 22

GSI forward entry.

EdgeValidation = 23

Edge validation request.

GraphAlgoSuperstep = 30

Superstep barrier: coordinator tells all shards to begin iteration N.

GraphAlgoContributions = 31

Boundary vertex contributions: shard sends rank contributions for vertices owned by the target shard (scatter phase).

GraphAlgoSuperstepAck = 32

Superstep complete: shard reports local convergence delta and vertex count to coordinator (gather phase).

GraphAlgoComplete = 33

Algorithm complete: coordinator broadcasts final signal with global convergence status.

TsScatterRequest = 40

Scatter: coordinator sends aggregation query to a shard.

TsScatterResponse = 41

Gather: shard responds with partial aggregates.

TsRetentionCommand = 42

Coordinator broadcasts retention command to all shards.

TsRetentionAck = 43

Shard acknowledges retention execution.

TsArchiveCommand = 44

S3 archival command: coordinator tells shard to archive partitions.

TsArchiveAck = 45

S3 archival acknowledgement.

VectorScatterRequest = 50

Scatter: coordinator sends k-NN query to a shard.

VectorScatterResponse = 51

Gather: shard responds with local top-K hits.

VectorCoarseRouteRequest = 52

Phase 1 request: coordinator asks a shard for its coarse routing descriptor (learned coarse codes, centroid summary, or equivalent). The shard responds with VectorCoarseRouteResponse before the coordinator selects the shard subset for the fine search phase.

VectorCoarseRouteResponse = 53

Phase 1 response: shard returns its coarse routing descriptor so the coordinator can decide whether to include it in phase 2.

VectorBuildExchangeRequest = 54

Build-time request: a shard sends its IVF centroid table to a peer so the peer can build cross-shard centroid knowledge. Sent shard-to-shard without coordinator involvement.

VectorBuildExchangeResponse = 55

Build-time response: receiving shard acknowledges and optionally echoes its own centroid summary back to the sender.

VectorMemRegionRequest = 56

Registration request: a shard asks a peer to expose a named memory region (e.g. a pinned HNSW graph segment) for one-sided reads. The peer responds with VectorMemRegionInfo containing the address and rkey, or indicates the region is unavailable.

VectorMemRegionResponse = 57

Registration response: peer returns address/rkey for the requested memory region, or available = false when not supported.

SpatialScatterRequest = 60

Scatter: coordinator sends spatial predicate query to a shard.

SpatialScatterResponse = 61

Gather: shard responds with matching document IDs.

CrossShardEvent = 70

Cross-shard event write request (trigger DML, CDC, etc.).

CrossShardEventAck = 71

Acknowledgement for a cross-shard event write.

NotifyBroadcast = 72

Broadcast NOTIFY message to all peers (LISTEN/NOTIFY cluster-wide).

NotifyBroadcastAck = 73

Acknowledgement for a NOTIFY broadcast.

ArrayShardSliceReq = 80

Scatter: coordinator sends a coord-range slice query to a shard.

ArrayShardSliceResp = 81

Gather: shard responds with matching row bytes.

ArrayShardAggReq = 82

Scatter: coordinator sends an aggregate query to a shard.

ArrayShardAggResp = 83

Gather: shard responds with partial aggregate(s).

ArrayShardPutReq = 84

Coordinator forwards a cell write batch to the owning shard.

ArrayShardPutResp = 85

Shard acknowledges a cell write batch.

ArrayShardDeleteReq = 86

Coordinator forwards a coord-based delete to the owning shard.

ArrayShardDeleteResp = 87

Shard acknowledges a coord-based delete.

ArrayShardSurrogateBitmapReq = 88

Scatter: coordinator requests a surrogate bitmap scan from a shard.

ArrayShardSurrogateBitmapResp = 89

Gather: shard returns the surrogate bitmap for matching cells.

Trait Implementations

impl Clone for VShardMessageType

fn clone(&self) -> VShardMessageType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for VShardMessageType

impl Debug for VShardMessageType

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for VShardMessageType

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for VShardMessageType

impl PartialEq for VShardMessageType

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for VShardMessageType

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 VShardMessageType