feat: PRT - add provider verification probing data

proto/lavanet/lava/pairing/relay.proto

@@ -18,6 +18,7 @@ message ProbeRequest {
     uint64 guid = 1;
     string spec_id = 2;
     string api_interface = 3;
+    bool with_verifications = 4;
 }
 
 message ProbeReply {
@@ -26,6 +27,12 @@ message ProbeReply {
     bytes finalized_blocks_hashes = 3;
     uint64 lava_epoch = 4;
     uint64 lava_latest_block = 5;
+    repeated Verification verifications = 6;
+}
+
+message Verification {
+    string name = 1;
+    bool passed = 2;
 }
 
 message RelaySession {

protocol/chainlib/chain_fetcher.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"strconv"
+	"sync"
 	"sync/atomic"
 	"time"
 
@@ -27,26 +28,76 @@ const (
 	ChainFetcherHeaderName = "X-LAVA-Provider"
 )
 
-type ChainFetcherIf interface {
+type IChainFetcher interface {
 	FetchLatestBlockNum(ctx context.Context) (int64, error)
 	FetchBlockHashByNum(ctx context.Context, blockNum int64) (string, error)
 	FetchEndpoint() lavasession.RPCProviderEndpoint
 	Validate(ctx context.Context) error
+	GetVerificationsStatus() []*pairingtypes.Verification
 	CustomMessage(ctx context.Context, path string, data []byte, connectionType string, apiName string) ([]byte, error)
 }
 
 type ChainFetcher struct {
-	endpoint    *lavasession.RPCProviderEndpoint
-	chainRouter ChainRouter
-	chainParser ChainParser
-	cache       *performance.Cache
-	latestBlock int64
+	endpoint            *lavasession.RPCProviderEndpoint
+	chainRouter         ChainRouter
+	chainParser         ChainParser
+	cache               *performance.Cache
+	latestBlock         int64
+	verificationsStatus sync.Map
+	cachedVerifications atomic.Value // holds []*pairingtypes.Verification for faster access
+	cacheValid          atomic.Bool
+}
+
+func (cf *ChainFetcher) GetVerificationsStatus() []*pairingtypes.Verification {
+	// Try to get from cache first
+	if cacheValid := cf.cacheValid.Load(); cacheValid {
+		value, ok := cf.cachedVerifications.Load().([]*pairingtypes.Verification)
+		if ok {
+			return value
+		}
+	}
+
+	// If not in cache, create new slice
+	verifications := make([]*pairingtypes.Verification, 0)
+	cf.verificationsStatus.Range(func(key, value any) bool {
+		name, ok := key.(string)
+		passed, ok2 := value.(bool)
+		if !ok || !ok2 {
+			return true
+		}
+		verifications = append(verifications, &pairingtypes.Verification{
+			Name:   name,
+			Passed: passed,
+		})
+		return true
+	})
+
+	// Store in cache
+	cf.cachedVerifications.Store(verifications)
+	cf.cacheValid.Store(true)
+	return verifications
+}
+
+// Add this method to invalidate cache when verification status changes
+func (cf *ChainFetcher) invalidateVerificationsCache() {
+	cf.cacheValid.Store(false)
 }
 
 func (cf *ChainFetcher) FetchEndpoint() lavasession.RPCProviderEndpoint {
 	return *cf.endpoint
 }
 
+func (cf *ChainFetcher) getVerificationsKey(verification VerificationContainer, apiInterface string, chainId string) string {
+	key := chainId + "-" + apiInterface + "-" + verification.Name
+	if verification.Addon != "" {
+		key += "-" + verification.Addon
+	}
+	if verification.Extension != "" {
+		key += "-" + verification.Extension
+	}
+	return key
+}
+
 func (cf *ChainFetcher) Validate(ctx context.Context) error {
 	for _, url := range cf.endpoint.NodeUrls {
 		addons := url.Addons
@@ -67,6 +118,8 @@ func (cf *ChainFetcher) Validate(ctx context.Context) error {
 		if err != nil {
 			return err
 		}
+		// invalidating cache as value might change
+		defer cf.invalidateVerificationsCache()
 		for _, verification := range verifications {
 			if slices.Contains(url.SkipVerifications, verification.Name) {
 				utils.LavaFormatDebug("Skipping Verification", utils.LogAttr("verification", verification.Name))
@@ -81,10 +134,12 @@ func (cf *ChainFetcher) Validate(ctx context.Context) error {
 				}
 			}
 			if err != nil {
+				cf.verificationsStatus.Store(cf.getVerificationsKey(verification, cf.endpoint.ApiInterface, cf.endpoint.ChainID), false)
 				if verification.Severity == spectypes.ParseValue_Fail {
 					return utils.LavaFormatError("invalid Verification on provider startup", err, utils.Attribute{Key: "Addons", Value: addons}, utils.Attribute{Key: "verification", Value: verification.Name})
 				}
 			}
+			cf.verificationsStatus.Store(cf.getVerificationsKey(verification, cf.endpoint.ApiInterface, cf.endpoint.ChainID), true)
 		}
 	}
 	return nil

protocol/integration/protocol_test.go

@@ -402,7 +402,7 @@ func createRpcProvider(t *testing.T, ctx context.Context, rpcProviderOptions rpc
 	chainTracker.StartAndServe(ctx)
 	reliabilityManager := reliabilitymanager.NewReliabilityManager(chainTracker, &mockProviderStateTracker, rpcProviderOptions.account.Addr.String(), chainRouter, chainParser)
 	mockReliabilityManager := NewMockReliabilityManager(reliabilityManager)
-	rpcProviderServer.ServeRPCRequests(ctx, rpcProviderEndpoint, chainParser, rws, providerSessionManager, mockReliabilityManager, rpcProviderOptions.account.SK, cache, chainRouter, &mockProviderStateTracker, rpcProviderOptions.account.Addr, rpcProviderOptions.lavaChainID, rpcprovider.DEFAULT_ALLOWED_MISSING_CU, nil, nil, nil, false, nil, numberOfRetriesOnNodeErrorsProviderSide)
+	rpcProviderServer.ServeRPCRequests(ctx, rpcProviderEndpoint, chainParser, rws, providerSessionManager, mockReliabilityManager, rpcProviderOptions.account.SK, cache, chainRouter, &mockProviderStateTracker, rpcProviderOptions.account.Addr, rpcProviderOptions.lavaChainID, rpcprovider.DEFAULT_ALLOWED_MISSING_CU, nil, nil, nil, false, nil, nil, numberOfRetriesOnNodeErrorsProviderSide)
 	listener := rpcprovider.NewProviderListener(ctx, rpcProviderEndpoint.NetworkAddress, "/health")
 	err = listener.RegisterReceiver(rpcProviderServer, rpcProviderEndpoint)
 	require.NoError(t, err)

protocol/rpcprovider/rpcprovider.go

@@ -16,6 +16,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/client/flags"
 	"github.com/cosmos/cosmos-sdk/client/tx"
 	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/dgraph-io/ristretto/v2"
 	"github.com/lavanet/lava/v4/app"
 	"github.com/lavanet/lava/v4/protocol/chainlib"
 	"github.com/lavanet/lava/v4/protocol/chainlib/chainproxy"
@@ -48,6 +49,11 @@ const (
 	ShardIDFlagName           = "shard-id"
 	StickinessHeaderName      = "sticky-header"
 	DefaultShardID       uint = 0
+
+	CacheMaxCost          = 10 * 1024 // each item cost would be 1
+	CacheNumCounters      = 1000      // expect 2000 items
+	VerificationsTTL      = 30 * time.Second
+	VerificationsCacheKey = "verifications"
 )
 
 var (
@@ -123,7 +129,7 @@ type rpcProviderHealthCheckMetricsOptions struct {
 type RPCProvider struct {
 	providerStateTracker ProviderStateTrackerInf
 	rpcProviderListeners map[string]*ProviderListener
-	lock                 sync.Mutex
+	lock                 sync.RWMutex
 	// all of the following members need to be concurrency proof
 	providerMetricsManager       *metrics.ProviderMetricsManager
 	rewardServer                 *rewardserver.RewardServer
@@ -145,6 +151,19 @@ type RPCProvider struct {
 	staticSpecPath               string
 	relayLoadLimit               uint64
 	providerLoadManagersPerChain *common.SafeSyncMap[string, *ProviderLoadManager]
+
+	verificationsResponseCache                          *ristretto.Cache[string, []*pairingtypes.Verification]
+	allChainsAndAPIInterfacesVerificationStatusFetchers []IVerificationsStatus
+}
+
+func (rpcp *RPCProvider) AddVerificationStatusFetcher(fetcher IVerificationsStatus) {
+	rpcp.lock.Lock()
+	defer rpcp.lock.Unlock()
+	if rpcp.allChainsAndAPIInterfacesVerificationStatusFetchers == nil {
+		rpcp.allChainsAndAPIInterfacesVerificationStatusFetchers = []IVerificationsStatus{}
+	}
+	rpcp.allChainsAndAPIInterfacesVerificationStatusFetchers = append(rpcp.allChainsAndAPIInterfacesVerificationStatusFetchers, fetcher)
+	rpcp.verificationsResponseCache.Clear()
 }
 
 func (rpcp *RPCProvider) Start(options *rpcProviderStartOptions) (err error) {
@@ -363,6 +382,21 @@ func GetAllNodeUrlsInternalPaths(nodeUrls []common.NodeUrl) []string {
 	return paths
 }
 
+func (rpcp *RPCProvider) GetVerificationsStatus() []*pairingtypes.Verification {
+	verifications, ok := rpcp.verificationsResponseCache.Get(VerificationsCacheKey)
+	if ok {
+		return verifications
+	}
+	rpcp.lock.RLock()
+	defer rpcp.lock.RUnlock()
+	verifications = make([]*pairingtypes.Verification, 0)
+	for _, fetcher := range rpcp.allChainsAndAPIInterfacesVerificationStatusFetchers {
+		verifications = append(verifications, fetcher.GetVerificationsStatus()...)
+	}
+	rpcp.verificationsResponseCache.SetWithTTL(VerificationsCacheKey, verifications, 1, VerificationsTTL)
+	return verifications
+}
+
 func (rpcp *RPCProvider) SetupEndpoint(ctx context.Context, rpcProviderEndpoint *lavasession.RPCProviderEndpoint, specValidator *SpecValidator) error {
 	err := rpcProviderEndpoint.Validate()
 	if err != nil {
@@ -416,7 +450,7 @@ func (rpcp *RPCProvider) SetupEndpoint(ctx context.Context, rpcProviderEndpoint
 			rpcp.providerMetricsManager.SetLatestBlock(chainID, rpcProviderEndpoint.NetworkAddress.Address, uint64(block))
 		}
 	}
-	var chainFetcher chainlib.ChainFetcherIf
+	var chainFetcher chainlib.IChainFetcher
 	if enabled, _ := chainParser.DataReliabilityParams(); enabled {
 		chainFetcher = chainlib.NewChainFetcher(
 			ctx,
@@ -431,6 +465,8 @@ func (rpcp *RPCProvider) SetupEndpoint(ctx context.Context, rpcProviderEndpoint
 		utils.LavaFormatDebug("verifications only ChainFetcher for spec", utils.LogAttr("chainId", rpcEndpoint.ChainID))
 		chainFetcher = chainlib.NewVerificationsOnlyChainFetcher(ctx, chainRouter, chainParser, rpcProviderEndpoint)
 	}
+	// so we can fetch failed verifications we need to add the chainFetcher before returning
+	rpcp.AddVerificationStatusFetcher(chainFetcher)
 
 	// check the chain fetcher verification works, if it doesn't we disable the chain+apiInterface and this triggers a boot retry
 	err = chainFetcher.Validate(ctx)
@@ -500,11 +536,11 @@ func (rpcp *RPCProvider) SetupEndpoint(ctx context.Context, rpcProviderEndpoint
 	}
 
 	// Add the chain fetcher to the spec validator
+	// check the chain fetcher verification works, if it doesn't we disable the chain+apiInterface and this triggers a boot retry
 	err = specValidator.AddChainFetcher(ctx, &chainFetcher, chainID)
 	if err != nil {
 		return utils.LavaFormatError("panic severity critical error, failed validating chain", err, utils.Attribute{Key: "rpcProviderEndpoint", Value: rpcProviderEndpoint})
 	}
-
 	providerMetrics := rpcp.providerMetricsManager.AddProviderMetrics(chainID, apiInterface, rpcProviderEndpoint.NetworkAddress.Address)
 
 	reliabilityManager := reliabilitymanager.NewReliabilityManager(chainTracker, rpcp.providerStateTracker, rpcp.addr.String(), chainRouter, chainParser)
@@ -527,7 +563,8 @@ func (rpcp *RPCProvider) SetupEndpoint(ctx context.Context, rpcProviderEndpoint
 		utils.LavaFormatTrace("Creating provider node subscription manager", utils.LogAttr("rpcProviderEndpoint", rpcProviderEndpoint))
 		providerNodeSubscriptionManager = chainlib.NewProviderNodeSubscriptionManager(chainRouter, chainParser, rpcProviderServer, rpcp.privKey)
 	}
-	rpcProviderServer.ServeRPCRequests(ctx, rpcProviderEndpoint, chainParser, rpcp.rewardServer, providerSessionManager, reliabilityManager, rpcp.privKey, rpcp.cache, chainRouter, rpcp.providerStateTracker, rpcp.addr, rpcp.lavaChainID, DEFAULT_ALLOWED_MISSING_CU, providerMetrics, relaysMonitor, providerNodeSubscriptionManager, rpcp.staticProvider, loadManager, numberOfRetriesAllowedOnNodeErrors)
+
+	rpcProviderServer.ServeRPCRequests(ctx, rpcProviderEndpoint, chainParser, rpcp.rewardServer, providerSessionManager, reliabilityManager, rpcp.privKey, rpcp.cache, chainRouter, rpcp.providerStateTracker, rpcp.addr, rpcp.lavaChainID, DEFAULT_ALLOWED_MISSING_CU, providerMetrics, relaysMonitor, providerNodeSubscriptionManager, rpcp.staticProvider, loadManager, rpcp, numberOfRetriesAllowedOnNodeErrors)
 	// set up grpc listener
 	var listener *ProviderListener
 	func() {
@@ -799,7 +836,17 @@ rpcprovider 127.0.0.1:3333 OSMOSIS tendermintrpc "wss://www.node-path.com:80,htt
 				relayLoadLimit,
 			}
 
-			rpcProvider := RPCProvider{}
+			verificationsResponseCache, err := ristretto.NewCache(
+				&ristretto.Config[string, []*pairingtypes.Verification]{
+					NumCounters:        CacheNumCounters,
+					MaxCost:            CacheMaxCost,
+					BufferItems:        64,
+					IgnoreInternalCost: true,
+				})
+			if err != nil {
+				utils.LavaFormatFatal("failed setting up cache for verificationsResponseCache", err)
+			}
+			rpcProvider := RPCProvider{verificationsResponseCache: verificationsResponseCache}
 			err = rpcProvider.Start(&rpcProviderStartOptions)
 			return err
 		},

protocol/rpcprovider/rpcprovider_server.go

@@ -72,6 +72,7 @@ type RPCProviderServer struct {
 	StaticProvider                  bool
 	providerStateMachine            *ProviderStateMachine
 	providerLoadManager             *ProviderLoadManager
+	verificationsStatusGetter       IVerificationsStatus
 }
 
 type ReliabilityManagerInf interface {
@@ -92,6 +93,10 @@ type StateTrackerInf interface {
 	GetVirtualEpoch(epoch uint64) uint64
 }
 
+type IVerificationsStatus interface {
+	GetVerificationsStatus() (status []*pairingtypes.Verification)
+}
+
 func (rpcps *RPCProviderServer) SetProviderUniqueId(uniqueId string) {
 	rpcps.providerUniqueId = uniqueId
 }
@@ -114,6 +119,7 @@ func (rpcps *RPCProviderServer) ServeRPCRequests(
 	providerNodeSubscriptionManager *chainlib.ProviderNodeSubscriptionManager,
 	staticProvider bool,
 	providerLoadManager *ProviderLoadManager,
+	verificationsStatusGetter IVerificationsStatus,
 	numberOfRetries int,
 ) {
 	rpcps.cache = cache
@@ -138,6 +144,7 @@ func (rpcps *RPCProviderServer) ServeRPCRequests(
 	rpcps.providerNodeSubscriptionManager = providerNodeSubscriptionManager
 	rpcps.providerStateMachine = NewProviderStateMachine(rpcProviderEndpoint.ChainID, lavaprotocol.NewRelayRetriesManager(), chainRouter, numberOfRetries)
 	rpcps.providerLoadManager = providerLoadManager
+	rpcps.verificationsStatusGetter = verificationsStatusGetter
 
 	rpcps.initRelaysMonitor(ctx)
 }
@@ -1232,12 +1239,19 @@ func (rpcps *RPCProviderServer) GetLatestBlockData(ctx context.Context, blockDis
 
 func (rpcps *RPCProviderServer) Probe(ctx context.Context, probeReq *pairingtypes.ProbeRequest) (*pairingtypes.ProbeReply, error) {
 	latestB, _ := rpcps.reliabilityManager.GetLatestBlockNum()
+	verificationsStatus := []*pairingtypes.Verification{}
+	if probeReq.WithVerifications {
+		if rpcps.verificationsStatusGetter != nil {
+			verificationsStatus = rpcps.verificationsStatusGetter.GetVerificationsStatus()
+		}
+	}
 	probeReply := &pairingtypes.ProbeReply{
 		Guid:                  probeReq.GetGuid(),
 		LatestBlock:           latestB,
 		FinalizedBlocksHashes: []byte{},
 		LavaEpoch:             rpcps.providerSessionManager.GetCurrentEpochAtomic(),
 		LavaLatestBlock:       uint64(rpcps.stateTracker.LatestBlock()),
+		Verifications:         verificationsStatus,
 	}
 	trailer := metadata.Pairs(common.VersionMetadataKey, upgrade.GetCurrentVersion().ProviderVersion)
 	trailer.Append(chainlib.RpcProviderUniqueIdHeader, rpcps.providerUniqueId)