spanconfig: introduce spanconfig.Reporter

This is KV-side API for multi-tenant replication reports (cockroachdb#89987)

Release note: None

pkg/BUILD.bazel

@@ -267,6 +267,7 @@ ALL_TESTS = [
     "//pkg/spanconfig/spanconfigmanager:spanconfigmanager_test",
     "//pkg/spanconfig/spanconfigptsreader:spanconfigptsreader_test",
     "//pkg/spanconfig/spanconfigreconciler:spanconfigreconciler_test",
+    "//pkg/spanconfig/spanconfigreporter:spanconfigreporter_test",
     "//pkg/spanconfig/spanconfigsqltranslator:spanconfigsqltranslator_test",
     "//pkg/spanconfig/spanconfigsqlwatcher:spanconfigsqlwatcher_test",
     "//pkg/spanconfig/spanconfigstore:spanconfigstore_test",
@@ -1335,6 +1336,8 @@ GO_TARGETS = [
     "//pkg/spanconfig/spanconfigptsreader:spanconfigptsreader_test",
     "//pkg/spanconfig/spanconfigreconciler:spanconfigreconciler",
     "//pkg/spanconfig/spanconfigreconciler:spanconfigreconciler_test",
+    "//pkg/spanconfig/spanconfigreporter:spanconfigreporter",
+    "//pkg/spanconfig/spanconfigreporter:spanconfigreporter_test",
     "//pkg/spanconfig/spanconfigsplitter:spanconfigsplitter",
     "//pkg/spanconfig/spanconfigsqltranslator:spanconfigsqltranslator",
     "//pkg/spanconfig/spanconfigsqltranslator:spanconfigsqltranslator_test",
@@ -2573,6 +2576,7 @@ GET_X_DATA_TARGETS = [
     "//pkg/spanconfig/spanconfigmanager:get_x_data",
     "//pkg/spanconfig/spanconfigptsreader:get_x_data",
     "//pkg/spanconfig/spanconfigreconciler:get_x_data",
+    "//pkg/spanconfig/spanconfigreporter:get_x_data",
     "//pkg/spanconfig/spanconfigsplitter:get_x_data",
     "//pkg/spanconfig/spanconfigsqltranslator:get_x_data",
     "//pkg/spanconfig/spanconfigsqlwatcher:get_x_data",

pkg/ccl/kvccl/kvtenantccl/connector.go

@@ -129,6 +129,10 @@ var _ serverpb.TenantStatusServer = (*Connector)(nil)
 // Connector is capable of accessing span configurations for secondary tenants.
 var _ spanconfig.KVAccessor = (*Connector)(nil)
 
+// Reporter is capable of generating span configuration conformance reports for
+// secondary tenants.
+var _ spanconfig.Reporter = (*Connector)(nil)
+
 // NewConnector creates a new Connector.
 // NOTE: Calling Start will set cfg.RPCContext.ClusterID.
 func NewConnector(cfg kvtenant.ConnectorConfig, addrs []string) *Connector {
@@ -534,6 +538,27 @@ func (c *Connector) UpdateSpanConfigRecords(
 	})
 }
 
+// SpanConfigConformance implements the spanconfig.Reporter interface.
+func (c *Connector) SpanConfigConformance(
+	ctx context.Context, spans []roachpb.Span,
+) (roachpb.SpanConfigConformanceReport, error) {
+	var report roachpb.SpanConfigConformanceReport
+	if err := c.withClient(ctx, func(ctx context.Context, c *client) error {
+		resp, err := c.SpanConfigConformance(ctx, &roachpb.SpanConfigConformanceRequest{
+			Spans: spans,
+		})
+		if err != nil {
+			return err
+		}
+
+		report = resp.Report
+		return nil
+	}); err != nil {
+		return roachpb.SpanConfigConformanceReport{}, err
+	}
+	return report, nil
+}
+
 // GetAllSystemSpanConfigsThatApply implements the spanconfig.KVAccessor
 // interface.
 func (c *Connector) GetAllSystemSpanConfigsThatApply(

pkg/ccl/kvccl/kvtenantccl/connector_test.go

@@ -124,6 +124,12 @@ func (m *mockServer) UpdateSpanConfigs(
 	panic("unimplemented")
 }
 
+func (m *mockServer) SpanConfigConformance(
+	context.Context, *roachpb.SpanConfigConformanceRequest,
+) (*roachpb.SpanConfigConformanceResponse, error) {
+	panic("unimplemented")
+}
+
 func gossipEventForClusterID(clusterID uuid.UUID) *roachpb.GossipSubscriptionEvent {
 	return &roachpb.GossipSubscriptionEvent{
 		Key:            gossip.KeyClusterID,

pkg/kv/kvclient/kvcoord/send_test.go

@@ -101,6 +101,12 @@ func (n Node) UpdateSpanConfigs(
 	panic("unimplemented")
 }
 
+func (n Node) SpanConfigConformance(
+	context.Context, *roachpb.SpanConfigConformanceRequest,
+) (*roachpb.SpanConfigConformanceResponse, error) {
+	panic("implement me")
+}
+
 func (n Node) TenantSettings(
 	*roachpb.TenantSettingsRequest, roachpb.Internal_TenantSettingsServer,
 ) error {

pkg/kv/kvclient/kvcoord/transport_test.go

@@ -218,6 +218,12 @@ func (m *mockInternalClient) GetSpanConfigs(
 	return nil, fmt.Errorf("unsupported GetSpanConfigs call")
 }
 
+func (m *mockInternalClient) SpanConfigConformance(
+	_ context.Context, _ *roachpb.SpanConfigConformanceRequest, _ ...grpc.CallOption,
+) (*roachpb.SpanConfigConformanceResponse, error) {
+	return nil, fmt.Errorf("unsupported SpanConfigConformance call")
+}
+
 func (m *mockInternalClient) GetAllSystemSpanConfigsThatApply(
 	context.Context, *roachpb.GetAllSystemSpanConfigsThatApplyRequest, ...grpc.CallOption,
 ) (*roachpb.GetAllSystemSpanConfigsThatApplyResponse, error) {

pkg/kv/kvclient/kvtenant/connector.go

@@ -76,6 +76,10 @@ type Connector interface {
 	// applicable to secondary tenants.
 	spanconfig.KVAccessor
 
+	// Reporter provides access to conformance reports, i.e. whether ranges
+	// backing queried keyspans conform the span configs that apply to them.
+	spanconfig.Reporter
+
 	// OverridesMonitor provides access to tenant cluster setting overrides.
 	settingswatcher.OverridesMonitor
 

pkg/kv/kvserver/allocator/allocatorimpl/allocator.go

@@ -998,10 +998,18 @@ func (a *Allocator) AllocateTargetFromList(
 	targetType TargetReplicaType,
 ) (roachpb.ReplicationTarget, string) {
 	existingReplicas := append(existingVoters, existingNonVoters...)
-	analyzedOverallConstraints := constraint.AnalyzeConstraints(ctx, a.StorePool.GetStoreDescriptor,
-		existingReplicas, conf.NumReplicas, conf.Constraints)
-	analyzedVoterConstraints := constraint.AnalyzeConstraints(ctx, a.StorePool.GetStoreDescriptor,
-		existingVoters, conf.GetNumVoters(), conf.VoterConstraints)
+	analyzedOverallConstraints := constraint.AnalyzeConstraints(
+		a.StorePool,
+		existingReplicas,
+		conf.NumReplicas,
+		conf.Constraints,
+	)
+	analyzedVoterConstraints := constraint.AnalyzeConstraints(
+		a.StorePool,
+		existingVoters,
+		conf.GetNumVoters(),
+		conf.VoterConstraints,
+	)
 
 	var constraintsChecker constraintsCheckFn
 	switch t := targetType; t {
@@ -1138,10 +1146,18 @@ func (a Allocator) RemoveTarget(
 	}
 
 	existingReplicas := append(existingVoters, existingNonVoters...)
-	analyzedOverallConstraints := constraint.AnalyzeConstraints(ctx, a.StorePool.GetStoreDescriptor,
-		existingReplicas, conf.NumReplicas, conf.Constraints)
-	analyzedVoterConstraints := constraint.AnalyzeConstraints(ctx, a.StorePool.GetStoreDescriptor,
-		existingVoters, conf.GetNumVoters(), conf.VoterConstraints)
+	analyzedOverallConstraints := constraint.AnalyzeConstraints(
+		a.StorePool,
+		existingReplicas,
+		conf.NumReplicas,
+		conf.Constraints,
+	)
+	analyzedVoterConstraints := constraint.AnalyzeConstraints(
+		a.StorePool,
+		existingVoters,
+		conf.GetNumVoters(),
+		conf.VoterConstraints,
+	)
 
 	var constraintsChecker constraintsCheckFn
 	switch t := targetType; t {
@@ -1273,9 +1289,17 @@ func (a Allocator) RebalanceTarget(
 
 	zero := roachpb.ReplicationTarget{}
 	analyzedOverallConstraints := constraint.AnalyzeConstraints(
-		ctx, a.StorePool.GetStoreDescriptor, existingReplicas, conf.NumReplicas, conf.Constraints)
+		a.StorePool,
+		existingReplicas,
+		conf.NumReplicas,
+		conf.Constraints,
+	)
 	analyzedVoterConstraints := constraint.AnalyzeConstraints(
-		ctx, a.StorePool.GetStoreDescriptor, existingVoters, conf.GetNumVoters(), conf.VoterConstraints)
+		a.StorePool,
+		existingVoters,
+		conf.GetNumVoters(),
+		conf.VoterConstraints,
+	)
 	var removalConstraintsChecker constraintsCheckFn
 	var rebalanceConstraintsChecker rebalanceConstraintsCheckFn
 	var replicaSetToRebalance, replicasWithExcludedStores []roachpb.ReplicaDescriptor

pkg/kv/kvserver/allocator/allocatorimpl/allocator_scorer_test.go

@@ -583,7 +583,13 @@ var (
 	}
 )
 
-func getTestStoreDesc(storeID roachpb.StoreID) (roachpb.StoreDescriptor, bool) {
+type mockStoreResolver struct{}
+
+var _ constraint.StoreResolver = mockStoreResolver{}
+
+func (m mockStoreResolver) GetStoreDescriptor(
+	storeID roachpb.StoreID,
+) (roachpb.StoreDescriptor, bool) {
 	desc, ok := testStores[storeID]
 	return desc, ok
 }
@@ -936,9 +942,7 @@ func TestAllocateConstraintsCheck(t *testing.T) {
 				Constraints: tc.constraints,
 				NumReplicas: tc.numReplicas,
 			}
-			analyzed := constraint.AnalyzeConstraints(
-				context.Background(), getTestStoreDesc, testStoreReplicas(tc.existing),
-				conf.NumReplicas, conf.Constraints)
+			analyzed := constraint.AnalyzeConstraints(mockStoreResolver{}, testStoreReplicas(tc.existing), conf.NumReplicas, conf.Constraints)
 			for _, s := range testStores {
 				valid, necessary := allocateConstraintsCheck(s, analyzed)
 				if e, a := tc.expectedValid[s.StoreID], valid; e != a {
@@ -1071,8 +1075,7 @@ func TestRemoveConstraintsCheck(t *testing.T) {
 				Constraints: tc.constraints,
 				NumReplicas: tc.numReplicas,
 			}
-			analyzed := constraint.AnalyzeConstraints(
-				context.Background(), getTestStoreDesc, existing, conf.NumReplicas, conf.Constraints)
+			analyzed := constraint.AnalyzeConstraints(mockStoreResolver{}, existing, conf.NumReplicas, conf.Constraints)
 			for storeID, expected := range tc.expected {
 				valid, necessary := removeConstraintsCheck(testStores[storeID], analyzed)
 				if e, a := expected.valid, valid; e != a {

pkg/kv/kvserver/allocator/allocatorimpl/allocator_test.go

@@ -3387,9 +3387,7 @@ func TestAllocateCandidatesExcludeNonReadyNodes(t *testing.T) {
 		}
 		// No constraints.
 		conf := roachpb.SpanConfig{}
-		analyzed := constraint.AnalyzeConstraints(
-			ctx, a.StorePool.GetStoreDescriptor, existingRepls, conf.NumReplicas,
-			conf.Constraints)
+		analyzed := constraint.AnalyzeConstraints(a.StorePool, existingRepls, conf.NumReplicas, conf.Constraints)
 		allocationConstraintsChecker := voterConstraintsCheckerForAllocation(analyzed, constraint.EmptyAnalyzedConstraints)
 		removalConstraintsChecker := voterConstraintsCheckerForRemoval(analyzed, constraint.EmptyAnalyzedConstraints)
 		rebalanceConstraintsChecker := voterConstraintsCheckerForRebalance(analyzed, constraint.EmptyAnalyzedConstraints)
@@ -3741,9 +3739,7 @@ func TestAllocateCandidatesNumReplicasConstraints(t *testing.T) {
 			}
 		}
 		conf := roachpb.SpanConfig{Constraints: tc.constraints}
-		analyzed := constraint.AnalyzeConstraints(
-			ctx, a.StorePool.GetStoreDescriptor, existingRepls, conf.NumReplicas,
-			conf.Constraints)
+		analyzed := constraint.AnalyzeConstraints(a.StorePool, existingRepls, conf.NumReplicas, conf.Constraints)
 		checkFn := voterConstraintsCheckerForAllocation(analyzed, constraint.EmptyAnalyzedConstraints)
 
 		candidates := rankedCandidateListForAllocation(
@@ -3971,8 +3967,7 @@ func TestRemoveCandidatesNumReplicasConstraints(t *testing.T) {
 				StoreID: storeID,
 			}
 		}
-		analyzed := constraint.AnalyzeConstraints(ctx, a.StorePool.GetStoreDescriptor, existingRepls,
-			0 /* numReplicas */, tc.constraints)
+		analyzed := constraint.AnalyzeConstraints(a.StorePool, existingRepls, 0, tc.constraints)
 
 		// Check behavior in a span config where `voter_constraints` are empty.
 		checkFn := voterConstraintsCheckerForRemoval(analyzed, constraint.EmptyAnalyzedConstraints)
@@ -5178,9 +5173,7 @@ func TestRebalanceCandidatesNumReplicasConstraints(t *testing.T) {
 			Constraints: tc.constraints,
 			NumReplicas: tc.numReplicas,
 		}
-		analyzed := constraint.AnalyzeConstraints(
-			ctx, a.StorePool.GetStoreDescriptor, existingRepls,
-			conf.NumReplicas, conf.Constraints)
+		analyzed := constraint.AnalyzeConstraints(a.StorePool, existingRepls, conf.NumReplicas, conf.Constraints)
 		removalConstraintsChecker := voterConstraintsCheckerForRemoval(
 			analyzed,
 			constraint.EmptyAnalyzedConstraints,

pkg/kv/kvserver/constraint/analyzer.go

@@ -10,19 +10,15 @@
 
 package constraint
 
-import (
-	"context"
+import "github.com/cockroachdb/cockroach/pkg/roachpb"
 
-	"github.com/cockroachdb/cockroach/pkg/roachpb"
-)
-
-// AnalyzedConstraints represents the result or AnalyzeConstraints(). It
-// combines a zone's constraints with information about which stores satisfy
-// what term of the constraints disjunction.
+// AnalyzedConstraints represents the result of AnalyzeConstraints(). It
+// combines a span config's constraints with information about which stores
+// satisfy what term of the constraints disjunction.
 type AnalyzedConstraints struct {
 	Constraints []roachpb.ConstraintsConjunction
 	// True if the per-replica constraints don't fully cover all the desired
-	// replicas in the range (sum(constraints.NumReplicas) < zone.NumReplicas).
+	// replicas in the range (sum(constraints.NumReplicas) < config.NumReplicas).
 	// In such cases, we allow replicas that don't match any of the per-replica
 	// constraints, but never mark them as necessary.
 	UnconstrainedReplicas bool
@@ -39,13 +35,17 @@ type AnalyzedConstraints struct {
 // satisfied by any given configuration of replicas.
 var EmptyAnalyzedConstraints = AnalyzedConstraints{}
 
-// AnalyzeConstraints processes the zone config constraints that apply to a
+// StoreResolver resolves a store descriptor by a given ID.
+type StoreResolver interface {
+	GetStoreDescriptor(storeID roachpb.StoreID) (roachpb.StoreDescriptor, bool)
+}
+
+// AnalyzeConstraints processes the span config constraints that apply to a
 // range along with the current replicas for a range, spitting back out
 // information about which constraints are satisfied by which replicas and
 // which replicas satisfy which constraints, aiding in allocation decisions.
 func AnalyzeConstraints(
-	ctx context.Context,
-	getStoreDescFn func(roachpb.StoreID) (roachpb.StoreDescriptor, bool),
+	storeResolver StoreResolver,
 	existing []roachpb.ReplicaDescriptor,
 	numReplicas int32,
 	constraints []roachpb.ConstraintsConjunction,
@@ -67,7 +67,7 @@ func AnalyzeConstraints(
 			// happen once a node is hooked into gossip), trust that it's valid. This
 			// is a much more stable failure state than frantically moving everything
 			// off such a node.
-			store, ok := getStoreDescFn(repl.StoreID)
+			store, ok := storeResolver.GetStoreDescriptor(repl.StoreID)
 			if !ok || ConjunctionsCheck(store, subConstraints.Constraints) {
 				result.SatisfiedBy[i] = append(result.SatisfiedBy[i], store.StoreID)
 				result.Satisfies[store.StoreID] = append(result.Satisfies[store.StoreID], i)
@@ -82,7 +82,7 @@ func AnalyzeConstraints(
 
 // ConjunctionsCheck checks a store against a single set of constraints (out of
 // the possibly numerous sets that apply to a range), returning true iff the
-// store matches the constraints. The contraints are AND'ed together; a store
+// store matches the constraints. The constraints are AND'ed together; a store
 // matches the conjunction if it matches all of them.
 func ConjunctionsCheck(store roachpb.StoreDescriptor, constraints []roachpb.Constraint) bool {
 	for _, constraint := range constraints {

pkg/kv/kvserver/replica_metrics.go

@@ -220,10 +220,10 @@ func calcRangeCounter(
 		status := desc.Replicas().ReplicationStatus(func(rDesc roachpb.ReplicaDescriptor) bool {
 			return livenessMap[rDesc.NodeID].IsLive
 		},
-			// neededVoters - we don't care about the under/over-replication
-			// determinations from the report because it's too magic. We'll do our own
-			// determination below.
-			0)
+			// needed{Voters,NonVoters} - we don't care about the
+			// under/over-replication determinations from the report because
+			// it's too magic. We'll do our own determination below.
+			0, 0)
 		unavailable = !status.Available
 		liveVoters := calcLiveVoterReplicas(desc, livenessMap)
 		liveNonVoters := calcLiveNonVoterReplicas(desc, livenessMap)

pkg/kv/kvserver/reports/replication_stats_report.go

@@ -401,7 +401,10 @@ func (v *replicationStatsVisitor) countRange(
 ) {
 	status := r.Replicas().ReplicationStatus(func(rDesc roachpb.ReplicaDescriptor) bool {
 		return v.nodeChecker(rDesc.NodeID)
-	}, replicationFactor)
+		// NB: this reporting code was written before ReplicationStatus reported
+		// on non-voting replicas. This code will also soon be removed in favor
+		// of something that works with multi-tenancy (#89987).
+	}, replicationFactor, 0)
 	// Note that a range can be under-replicated and over-replicated at the same
 	// time if it has many replicas, but sufficiently many of them are on dead
 	// nodes.

pkg/kv/kvserver/store.go

@@ -1072,7 +1072,8 @@ type StoreConfig struct {
 
 	// SpanConfigsDisabled determines whether we're able to use the span configs
 	// infrastructure or not.
-	// TODO(richardjcai): We can likely remove this.
+	//
+	// TODO(irfansharif): We can remove this.
 	SpanConfigsDisabled bool
 	// Used to subscribe to span configuration changes, keeping up-to-date a
 	// data structure useful for retrieving span configs. Only available if

pkg/roachpb/api.proto

@@ -3022,6 +3022,10 @@ service Internal {
   // keyspans.
   rpc UpdateSpanConfigs (UpdateSpanConfigsRequest) returns (UpdateSpanConfigsResponse) { }
 
+  // SpanConfigConformance is used to determine whether ranges backing the given
+  // keyspans conform to span configs that apply over them.
+  rpc SpanConfigConformance (SpanConfigConformanceRequest) returns (SpanConfigConformanceResponse) { }
+
   // TenantSettings is used by tenants to obtain and stay up to date with tenant
   // setting overrides.
   rpc TenantSettings (TenantSettingsRequest) returns (stream TenantSettingsEvent) { }

pkg/roachpb/metadata.go

@@ -483,6 +483,17 @@ func (r ReplicaDescriptor) IsAnyVoter() bool {
 	}
 }
 
+// IsNonVoter returns true if the replica is a non-voter. Can be used as a
+// filter for ReplicaDescriptors.Filter.
+func (r ReplicaDescriptor) IsNonVoter() bool {
+	switch r.Type {
+	case NON_VOTER:
+		return true
+	default:
+		return false
+	}
+}
+
 // PercentilesFromData derives percentiles from a slice of data points.
 // Sorts the input data if it isn't already sorted.
 func PercentilesFromData(data []float64) Percentiles {