Node: Remove references to SignedObservation

node/pkg/node/node.go

@@ -29,10 +29,6 @@ const (
 	// gossipVaaSendBufferSize configures the size of the gossip network send buffer
 	gossipVaaSendBufferSize = 5000
 
-	// inboundObservationBufferSize configures the size of the obsvC channel that contains observations from other Guardians.
-	// One observation takes roughly 0.1ms to process on one core, so the whole queue could be processed in 1s
-	inboundObservationBufferSize = 10000
-
 	// inboundBatchObservationBufferSize configures the size of the batchObsvC channel that contains batches of observations from other Guardians.
 	// Since a batch contains many observations, the guardians should not be publishing too many of these. With 19 guardians, we would expect 19 messages
 	// per second during normal operations. However, since some messages get published immediately, we need to allow extra room.
@@ -85,7 +81,6 @@ type G struct {
 	gossipAttestationSendC chan []byte
 	gossipVaaSendC         chan []byte
 	// Inbound observations. This is read/write because the processor also writes to it as a fast-path when handling locally made observations.
-	obsvC chan *common.MsgWithTimeStamp[gossipv1.SignedObservation]
 	// Inbound observation batches.
 	batchObsvC channelPair[*common.MsgWithTimeStamp[gossipv1.SignedObservationBatch]]
 	// Finalized guardian observations aggregated across all chains
@@ -127,7 +122,6 @@ func (g *G) initializeBasic(rootCtxCancel context.CancelFunc) {
 	g.gossipControlSendC = make(chan []byte, gossipControlSendBufferSize)
 	g.gossipAttestationSendC = make(chan []byte, gossipAttestationSendBufferSize)
 	g.gossipVaaSendC = make(chan []byte, gossipVaaSendBufferSize)
-	g.obsvC = make(chan *common.MsgWithTimeStamp[gossipv1.SignedObservation], inboundObservationBufferSize)
 	g.batchObsvC = makeChannelPair[*common.MsgWithTimeStamp[gossipv1.SignedObservationBatch]](inboundBatchObservationBufferSize)
 	g.msgC = makeChannelPair[*common.MessagePublication](0)
 	g.setC = makeChannelPair[*common.GuardianSet](1) // This needs to be a buffered channel because of a circular dependency between processor and accountant during startup.

node/pkg/node/options.go

@@ -83,7 +83,6 @@ func GuardianOptionP2P(
 				p2p.WithGuardianOptions(
 					nodeName,
 					g.guardianSigner,
-					g.obsvC,
 					g.batchObsvC.writeC,
 					signedInC,
 					g.obsvReqC.writeC,
@@ -593,7 +592,6 @@ func GuardianOptionProcessor(networkId string) *GuardianOption {
 				g.setC.readC,
 				g.gossipAttestationSendC,
 				g.gossipVaaSendC,
-				g.obsvC,
 				g.batchObsvC.readC,
 				g.obsvReqSendC.writeC,
 				g.signedInC.readC,

node/pkg/p2p/p2p.go

@@ -393,7 +393,7 @@ func Run(params *RunParams) func(ctx context.Context) error {
 		}
 
 		// Set up the attestation channel. ////////////////////////////////////////////////////////////////////
-		if params.gossipAttestationSendC != nil || params.obsvRecvC != nil || params.batchObsvRecvC != nil {
+		if params.gossipAttestationSendC != nil || params.batchObsvRecvC != nil {
 			attestationTopic := fmt.Sprintf("%s/%s", params.networkID, "attestation")
 			logger.Info("joining the attestation topic", zap.String("topic", attestationTopic))
 			attestationPubsubTopic, err = ps.Join(attestationTopic)
@@ -407,7 +407,7 @@ func Run(params *RunParams) func(ctx context.Context) error {
 				}
 			}()
 
-			if params.obsvRecvC != nil || params.batchObsvRecvC != nil {
+			if params.batchObsvRecvC != nil {
 				logger.Info("subscribing to the attestation topic", zap.String("topic", attestationTopic))
 				attestationSubscription, err = attestationPubsubTopic.Subscribe(pubsub.WithBufferSize(P2P_SUBSCRIPTION_BUFFER_SIZE))
 				if err != nil {
@@ -883,17 +883,6 @@ func Run(params *RunParams) func(ctx context.Context) error {
 					}
 
 					switch m := msg.Message.(type) {
-					case *gossipv1.GossipMessage_SignedObservation:
-						if params.obsvRecvC != nil {
-							if err := common.PostMsgWithTimestamp(m.SignedObservation, params.obsvRecvC); err == nil {
-								p2pMessagesReceived.WithLabelValues("observation").Inc()
-							} else {
-								if params.components.WarnChannelOverflow {
-									logger.Warn("Ignoring SignedObservation because obsvRecvC is full", zap.String("addr", hex.EncodeToString(m.SignedObservation.Addr)))
-								}
-								p2pReceiveChannelOverflow.WithLabelValues("observation").Inc()
-							}
-						}
 					case *gossipv1.GossipMessage_SignedObservationBatch:
 						if params.batchObsvRecvC != nil {
 							if err := common.PostMsgWithTimestamp(m.SignedObservationBatch, params.batchObsvRecvC); err == nil {

node/pkg/p2p/run_params.go

@@ -23,9 +23,6 @@ type (
 		gst            *common.GuardianSetState
 		rootCtxCancel  context.CancelFunc
 
-		// obsvRecvC is optional and can be set with `WithSignedObservationListener`.
-		obsvRecvC chan<- *common.MsgWithTimeStamp[gossipv1.SignedObservation]
-
 		// batchObsvRecvC is optional and can be set with `WithSignedObservationBatchListener`.
 		batchObsvRecvC chan<- *common.MsgWithTimeStamp[gossipv1.SignedObservationBatch]
 
@@ -117,14 +114,6 @@ func WithProcessorFeaturesFunc(processorFeaturesFunc func() string) RunOpt {
 	}
 }
 
-// WithSignedObservationListener is used to set the channel to receive `SignedObservation` messages.
-func WithSignedObservationListener(obsvRecvC chan<- *common.MsgWithTimeStamp[gossipv1.SignedObservation]) RunOpt {
-	return func(p *RunParams) error {
-		p.obsvRecvC = obsvRecvC
-		return nil
-	}
-}
-
 // WithSignedObservationBatchListener is used to set the channel to receive `SignedObservationBatch` messages.
 func WithSignedObservationBatchListener(batchObsvC chan<- *common.MsgWithTimeStamp[gossipv1.SignedObservationBatch]) RunOpt {
 	return func(p *RunParams) error {
@@ -177,7 +166,6 @@ func WithDisableHeartbeatVerify(disableHeartbeatVerify bool) RunOpt {
 func WithGuardianOptions(
 	nodeName string,
 	guardianSigner guardiansigner.GuardianSigner,
-	obsvRecvC chan<- *common.MsgWithTimeStamp[gossipv1.SignedObservation],
 	batchObsvRecvC chan<- *common.MsgWithTimeStamp[gossipv1.SignedObservationBatch],
 	signedIncomingVaaRecvC chan<- *gossipv1.SignedVAAWithQuorum,
 	obsvReqRecvC chan<- *gossipv1.ObservationRequest,
@@ -201,7 +189,6 @@ func WithGuardianOptions(
 	return func(p *RunParams) error {
 		p.nodeName = nodeName
 		p.guardianSigner = guardianSigner
-		p.obsvRecvC = obsvRecvC
 		p.batchObsvRecvC = batchObsvRecvC
 		p.signedIncomingVaaRecvC = signedIncomingVaaRecvC
 		p.obsvReqRecvC = obsvReqRecvC

node/pkg/p2p/run_params_test.go

@@ -138,7 +138,6 @@ func TestRunParamsWithGuardianOptions(t *testing.T) {
 	require.NoError(t, err)
 	require.NotNil(t, guardianSigner)
 
-	obsvC := make(chan<- *common.MsgWithTimeStamp[gossipv1.SignedObservation], 42)
 	batchObsvC := make(chan<- *common.MsgWithTimeStamp[gossipv1.SignedObservationBatch], 42)
 	signedInC := make(chan<- *gossipv1.SignedVAAWithQuorum, 42)
 	obsvReqC := make(chan<- *gossipv1.ObservationRequest, 42)
@@ -170,7 +169,6 @@ func TestRunParamsWithGuardianOptions(t *testing.T) {
 		WithGuardianOptions(
 			nodeName,
 			guardianSigner,
-			obsvC,
 			batchObsvC,
 			signedInC,
 			obsvReqC,
@@ -195,7 +193,6 @@ func TestRunParamsWithGuardianOptions(t *testing.T) {
 	require.NoError(t, err)
 	require.NotNil(t, params)
 	assert.Equal(t, nodeName, params.nodeName)
-	assert.Equal(t, obsvC, params.obsvRecvC)
 	assert.Equal(t, signedInC, params.signedIncomingVaaRecvC)
 	assert.Equal(t, obsvReqC, params.obsvReqRecvC)
 	assert.Equal(t, gossipControlSendC, params.gossipControlSendC)

node/pkg/p2p/watermark_test.go

@@ -26,7 +26,6 @@ const LOCAL_P2P_PORTRANGE_START = 11000
 
 type G struct {
 	// arguments passed to p2p.New
-	obsvC                  chan *node_common.MsgWithTimeStamp[gossipv1.SignedObservation]
 	batchObsvC             chan *node_common.MsgWithTimeStamp[gossipv1.SignedObservationBatch]
 	obsvReqC               chan *gossipv1.ObservationRequest
 	obsvReqSendC           chan *gossipv1.ObservationRequest
@@ -66,7 +65,6 @@ func NewG(t *testing.T, nodeName string) *G {
 	_, rootCtxCancel := context.WithCancel(context.Background())
 
 	g := &G{
-		obsvC:                  make(chan *node_common.MsgWithTimeStamp[gossipv1.SignedObservation], cs),
 		batchObsvC:             make(chan *node_common.MsgWithTimeStamp[gossipv1.SignedObservationBatch], cs),
 		obsvReqC:               make(chan *gossipv1.ObservationRequest, cs),
 		obsvReqSendC:           make(chan *gossipv1.ObservationRequest, cs),
@@ -91,7 +89,6 @@ func NewG(t *testing.T, nodeName string) *G {
 		name := g.nodeName
 		t.Logf("[%s] consuming\n", name)
 		select {
-		case <-g.obsvC:
 		case <-g.obsvReqC:
 		case <-g.signedInC:
 		case <-g.signedGovCfg:
@@ -182,7 +179,6 @@ func startGuardian(t *testing.T, ctx context.Context, g *G) {
 		WithGuardianOptions(
 			g.nodeName,
 			g.guardianSigner,
-			g.obsvC,
 			g.batchObsvC,
 			g.signedInC,
 			g.obsvReqC,

node/pkg/processor/observation.go

@@ -75,18 +75,6 @@ func (p *Processor) handleBatchObservation(m *node_common.MsgWithTimeStamp[gossi
 	batchObservationTotalDelay.Observe(float64(time.Since(m.Timestamp).Microseconds()))
 }
 
-// handleObservation processes a remote VAA observation.
-func (p *Processor) handleObservation(m *node_common.MsgWithTimeStamp[gossipv1.SignedObservation]) {
-	obs := gossipv1.Observation{
-		Hash:      m.Msg.Hash,
-		Signature: m.Msg.Signature,
-		TxHash:    m.Msg.TxHash,
-		MessageId: m.Msg.MessageId,
-	}
-	p.handleSingleObservation(m.Msg.Addr, &obs)
-	observationTotalDelay.Observe(float64(time.Since(m.Timestamp).Microseconds()))
-}
-
 // handleObservation processes a remote VAA observation, verifies it, checks whether the VAA has met quorum, and assembles and submits a valid VAA if possible.
 func (p *Processor) handleSingleObservation(addr []byte, m *gossipv1.Observation) {
 	// SECURITY: at this point, observations received from the p2p network are fully untrusted (all fields!)
@@ -197,7 +185,7 @@ func (p *Processor) handleSingleObservation(addr []byte, m *gossipv1.Observation
 		return
 	}
 
-	// Hooray! Now, we have verified all fields on SignedObservation and know that it includes
+	// Hooray! Now, we have verified all fields on the observation and know that it includes
 	// a valid signature by an active guardian. We still don't fully trust them, as they may be
 	// byzantine, but now we know who we're dealing with.
 

node/pkg/processor/processor.go

@@ -114,9 +114,6 @@ type Processor struct {
 	// gossipVaaSendC is a channel of outbound VAA messages to broadcast on p2p
 	gossipVaaSendC chan<- []byte
 
-	// obsvC is a channel of inbound decoded observations from p2p
-	obsvC chan *common.MsgWithTimeStamp[gossipv1.SignedObservation]
-
 	// batchObsvC is a channel of inbound decoded batches of observations from p2p
 	batchObsvC <-chan *common.MsgWithTimeStamp[gossipv1.SignedObservationBatch]
 
@@ -166,20 +163,6 @@ type updateVaaEntry struct {
 }
 
 var (
-	observationChanDelay = promauto.NewHistogram(
-		prometheus.HistogramOpts{
-			Name:    "wormhole_signed_observation_channel_delay_us",
-			Help:    "Latency histogram for delay of signed observations in channel",
-			Buckets: []float64{10.0, 20.0, 50.0, 100.0, 1000.0, 5000.0, 10000.0, 100_000.0, 1_000_000.0, 10_000_000.0, 100_000_000.0, 1_000_000_000.0},
-		})
-
-	observationTotalDelay = promauto.NewHistogram(
-		prometheus.HistogramOpts{
-			Name:    "wormhole_signed_observation_total_delay_us",
-			Help:    "Latency histogram for total time to process signed observations",
-			Buckets: []float64{10.0, 20.0, 50.0, 100.0, 1000.0, 5000.0, 10_000.0, 100_000.0, 1_000_000.0, 10_000_000.0, 100_000_000.0, 1_000_000_000.0},
-		})
-
 	batchObservationChanDelay = promauto.NewHistogram(
 		prometheus.HistogramOpts{
 			Name:    "wormhole_batch_observation_channel_delay_us",
@@ -225,7 +208,6 @@ func NewProcessor(
 	setC <-chan *common.GuardianSet,
 	gossipAttestationSendC chan<- []byte,
 	gossipVaaSendC chan<- []byte,
-	obsvC chan *common.MsgWithTimeStamp[gossipv1.SignedObservation],
 	batchObsvC <-chan *common.MsgWithTimeStamp[gossipv1.SignedObservationBatch],
 	obsvReqSendC chan<- *gossipv1.ObservationRequest,
 	signedInC <-chan *gossipv1.SignedVAAWithQuorum,
@@ -243,7 +225,6 @@ func NewProcessor(
 		setC:                   setC,
 		gossipAttestationSendC: gossipAttestationSendC,
 		gossipVaaSendC:         gossipVaaSendC,
-		obsvC:                  obsvC,
 		batchObsvC:             batchObsvC,
 		obsvReqSendC:           obsvReqSendC,
 		signedInC:              signedInC,
@@ -319,9 +300,6 @@ func (p *Processor) Run(ctx context.Context) error {
 				return fmt.Errorf("accountant published a message that is not covered by it: `%s`", k.MessageIDString())
 			}
 			p.handleMessage(ctx, k)
-		case m := <-p.obsvC:
-			observationChanDelay.Observe(float64(time.Since(m.Timestamp).Microseconds()))
-			p.handleObservation(m)
 		case m := <-p.batchObsvC:
 			batchObservationChanDelay.Observe(float64(time.Since(m.Timestamp).Microseconds()))
 			p.handleBatchObservation(m)