gossip: rename a few gossiped key methods

The "StoreID" and "NodeID" keys were misleading as they didn't actually
gossip the ID (rather, the value is a {Node,Store}Descriptor).

We're about to have another store-scoped key (#79215) and this cleanup
helps with that.

This commit is entirely mechanical IDE renames.

Release note: None

pkg/ccl/backupccl/backup_job.go

@@ -96,7 +96,7 @@ func clusterNodeCount(gw gossip.OptionalGossip) (int, error) {
 	}
 	var nodes int
 	err = g.IterateInfos(
-		gossip.KeyNodeIDPrefix, func(_ string, _ gossip.Info) error {
+		gossip.KeyNodeDescPrefix, func(_ string, _ gossip.Info) error {
 			nodes++
 			return nil
 		},

pkg/ccl/changefeedccl/kvfeed/scanner.go

@@ -298,7 +298,7 @@ func clusterNodeCount(gw gossip.OptionalGossip) int {
 		return 1
 	}
 	var nodes int
-	_ = g.IterateInfos(gossip.KeyNodeIDPrefix, func(_ string, _ gossip.Info) error {
+	_ = g.IterateInfos(gossip.KeyNodeDescPrefix, func(_ string, _ gossip.Info) error {
 		nodes++
 		return nil
 	})

pkg/ccl/kvccl/kvtenantccl/connector.go

@@ -258,7 +258,7 @@ var gossipSubsHandlers = map[string]func(*Connector, context.Context, string, ro
 	// Subscribe to the ClusterID update.
 	gossip.KeyClusterID: (*Connector).updateClusterID,
 	// Subscribe to all *NodeDescriptor updates.
-	gossip.MakePrefixPattern(gossip.KeyNodeIDPrefix): (*Connector).updateNodeAddress,
+	gossip.MakePrefixPattern(gossip.KeyNodeDescPrefix): (*Connector).updateNodeAddress,
 	// Subscribe to a filtered view of *SystemConfig updates.
 	gossip.KeyDeprecatedSystemConfig: (*Connector).updateSystemConfig,
 }

pkg/ccl/kvccl/kvtenantccl/connector_test.go

@@ -136,7 +136,7 @@ func gossipEventForNodeDesc(desc *roachpb.NodeDescriptor) *roachpb.GossipSubscri
 	return &roachpb.GossipSubscriptionEvent{
 		Key:            gossip.MakeNodeIDKey(desc.NodeID),
 		Content:        roachpb.MakeValueFromBytesAndTimestamp(val, hlc.Timestamp{}),
-		PatternMatched: gossip.MakePrefixPattern(gossip.KeyNodeIDPrefix),
+		PatternMatched: gossip.MakePrefixPattern(gossip.KeyNodeDescPrefix),
 	}
 }
 

pkg/cli/debug.go

@@ -961,13 +961,13 @@ func parseGossipValues(gossipInfo *gossip.InfoStatus) (string, error) {
 				return "", errors.Wrapf(err, "failed to parse value for key %q", key)
 			}
 			output = append(output, fmt.Sprintf("%q: %v", key, desc))
-		} else if gossip.IsNodeIDKey(key) {
+		} else if gossip.IsNodeDescKey(key) {
 			var desc roachpb.NodeDescriptor
 			if err := protoutil.Unmarshal(bytes, &desc); err != nil {
 				return "", errors.Wrapf(err, "failed to parse value for key %q", key)
 			}
 			output = append(output, fmt.Sprintf("%q: %+v", key, desc))
-		} else if strings.HasPrefix(key, gossip.KeyStorePrefix) {
+		} else if strings.HasPrefix(key, gossip.KeyStoreDescPrefix) {
 			var desc roachpb.StoreDescriptor
 			if err := protoutil.Unmarshal(bytes, &desc); err != nil {
 				return "", errors.Wrapf(err, "failed to parse value for key %q", key)

pkg/cmd/roachtest/tests/gossip.go

@@ -218,7 +218,7 @@ func (gossipUtil) hasPeers(expected int) checkGossipFunc {
 	return func(infos map[string]gossip.Info) error {
 		count := 0
 		for k := range infos {
-			if strings.HasPrefix(k, gossip.KeyNodeIDPrefix) {
+			if strings.HasPrefix(k, gossip.KeyNodeDescPrefix) {
 				count++
 			}
 		}

pkg/gossip/gossip.go

@@ -331,8 +331,8 @@ func New(
 	// Add ourselves as a SystemConfig watcher.
 	g.mu.is.registerCallback(KeyDeprecatedSystemConfig, g.updateSystemConfig)
 	// Add ourselves as a node descriptor watcher.
-	g.mu.is.registerCallback(MakePrefixPattern(KeyNodeIDPrefix), g.updateNodeAddress)
-	g.mu.is.registerCallback(MakePrefixPattern(KeyStorePrefix), g.updateStoreMap)
+	g.mu.is.registerCallback(MakePrefixPattern(KeyNodeDescPrefix), g.updateNodeAddress)
+	g.mu.is.registerCallback(MakePrefixPattern(KeyStoreDescPrefix), g.updateStoreMap)
 	// Log gossip connectivity whenever we receive an update.
 	g.mu.Unlock()
 
@@ -741,7 +741,7 @@ func (g *Gossip) maybeCleanupBootstrapAddressesLocked() {
 
 	var desc roachpb.NodeDescriptor
 	if err := g.mu.is.visitInfos(func(key string, i *Info) error {
-		if strings.HasPrefix(key, KeyNodeIDPrefix) {
+		if strings.HasPrefix(key, KeyNodeDescPrefix) {
 			if err := i.Value.GetProto(&desc); err != nil {
 				return err
 			}
@@ -817,7 +817,7 @@ func (g *Gossip) updateNodeAddress(key string, content roachpb.Value) {
 	// We can't directly compare the node against the empty descriptor because
 	// the proto has a repeated field and thus isn't comparable.
 	if desc.NodeID == 0 || desc.Address.IsEmpty() {
-		nodeID, err := NodeIDFromKey(key, KeyNodeIDPrefix)
+		nodeID, err := DecodeNodeDescKey(key, KeyNodeDescPrefix)
 		if err != nil {
 			log.Health.Errorf(ctx, "unable to update node address for removed node: %s", err)
 			return

pkg/gossip/gossip_test.go

@@ -427,7 +427,7 @@ func TestGossipMostDistant(t *testing.T) {
 				g.mu.Lock()
 				var buf bytes.Buffer
 				_ = g.mu.is.visitInfos(func(key string, i *Info) error {
-					if i.NodeID != 1 && IsNodeIDKey(key) {
+					if i.NodeID != 1 && IsNodeDescKey(key) {
 						fmt.Fprintf(&buf, "n%d: hops=%d\n", i.NodeID, i.Hops)
 					}
 					return nil

pkg/gossip/infostore.go

@@ -435,7 +435,7 @@ func (is *infoStore) delta(highWaterTimestamps map[roachpb.NodeID]int64) map[str
 // propagated regardless of high water stamps.
 func (is *infoStore) populateMostDistantMarkers(infos map[string]*Info) {
 	if err := is.visitInfos(func(key string, i *Info) error {
-		if IsNodeIDKey(key) {
+		if IsNodeDescKey(key) {
 			infos[key] = i
 		}
 		return nil
@@ -467,7 +467,7 @@ func (is *infoStore) mostDistant(
 		// acquire unreliably high Hops values in some pathological cases such as
 		// those described in #9819.
 		if i.NodeID != localNodeID && i.Hops > maxHops &&
-			IsNodeIDKey(key) && !hasOutgoingConn(i.NodeID) {
+			IsNodeDescKey(key) && !hasOutgoingConn(i.NodeID) {
 			maxHops = i.Hops
 			nodeID = i.NodeID
 		}

pkg/gossip/keys.go

@@ -35,14 +35,14 @@ const (
 	// Gossip.Connected channel is closed when we see this key.
 	KeyClusterID = "cluster-id"
 
-	// KeyStorePrefix is the key prefix for gossiping stores in the network.
+	// KeyStoreDescPrefix is the key prefix for gossiping stores in the network.
 	// The suffix is a store ID and the value is a roachpb.StoreDescriptor.
-	KeyStorePrefix = "store"
+	KeyStoreDescPrefix = "store"
 
-	// KeyNodeIDPrefix is the key prefix for gossiping node id addresses.
+	// KeyNodeDescPrefix is the key prefix for gossiping node id addresses.
 	// The actual key is suffixed with the decimal representation of the
 	// node id (e.g. 'node:1') and the value is a roachpb.NodeDescriptor.
-	KeyNodeIDPrefix = "node"
+	KeyNodeDescPrefix = "node"
 
 	// KeyHealthAlertPrefix is the key prefix for gossiping health alerts.
 	// The value is a proto of type HealthCheckResult.
@@ -121,18 +121,18 @@ func MakePrefixPattern(prefix string) string {
 
 // MakeNodeIDKey returns the gossip key for node ID info.
 func MakeNodeIDKey(nodeID roachpb.NodeID) string {
-	return MakeKey(KeyNodeIDPrefix, nodeID.String())
+	return MakeKey(KeyNodeDescPrefix, nodeID.String())
 }
 
-// IsNodeIDKey returns true iff the provided key is a valid node ID key.
-func IsNodeIDKey(key string) bool {
-	return strings.HasPrefix(key, KeyNodeIDPrefix+separator)
+// IsNodeDescKey returns true iff the provided key is a valid node ID key.
+func IsNodeDescKey(key string) bool {
+	return strings.HasPrefix(key, KeyNodeDescPrefix+separator)
 }
 
-// NodeIDFromKey attempts to extract a NodeID from the provided key after
+// DecodeNodeDescKey attempts to extract a NodeID from the provided key after
 // stripping the provided prefix. Returns an error if the key is not of the
 // correct type or is not parsable.
-func NodeIDFromKey(key string, prefix string) (roachpb.NodeID, error) {
+func DecodeNodeDescKey(key string, prefix string) (roachpb.NodeID, error) {
 	trimmedKey, err := removePrefixFromKey(key, prefix)
 	if err != nil {
 		return 0, err
@@ -160,16 +160,16 @@ func MakeNodeLivenessKey(nodeID roachpb.NodeID) string {
 	return MakeKey(KeyNodeLivenessPrefix, nodeID.String())
 }
 
-// MakeStoreKey returns the gossip key for the given store.
-func MakeStoreKey(storeID roachpb.StoreID) string {
-	return MakeKey(KeyStorePrefix, storeID.String())
+// MakeStoreDescKey returns the gossip key for the given store.
+func MakeStoreDescKey(storeID roachpb.StoreID) string {
+	return MakeKey(KeyStoreDescPrefix, storeID.String())
 }
 
-// StoreIDFromKey attempts to extract a StoreID from the provided key after
+// DecodeStoreDescKey attempts to extract a StoreID from the provided key after
 // stripping the provided prefix. Returns an error if the key is not of the
 // correct type or is not parsable.
-func StoreIDFromKey(storeKey string) (roachpb.StoreID, error) {
-	trimmedKey, err := removePrefixFromKey(storeKey, KeyStorePrefix)
+func DecodeStoreDescKey(storeKey string) (roachpb.StoreID, error) {
+	trimmedKey, err := removePrefixFromKey(storeKey, KeyStoreDescPrefix)
 	if err != nil {
 		return 0, err
 	}

pkg/gossip/keys_test.go

@@ -30,18 +30,18 @@ func TestNodeIDFromKey(t *testing.T) {
 		{MakeNodeIDKey(123), 123, true},
 		{MakeNodeIDKey(123) + "foo", 0, false},
 		{"foo" + MakeNodeIDKey(123), 0, false},
-		{KeyNodeIDPrefix, 0, false},
-		{KeyNodeIDPrefix + ":", 0, false},
-		{KeyNodeIDPrefix + ":foo", 0, false},
+		{KeyNodeDescPrefix, 0, false},
+		{KeyNodeDescPrefix + ":", 0, false},
+		{KeyNodeDescPrefix + ":foo", 0, false},
 		{"123", 0, false},
-		{MakePrefixPattern(KeyNodeIDPrefix), 0, false},
+		{MakePrefixPattern(KeyNodeDescPrefix), 0, false},
 		{MakeNodeLivenessKey(1), 0, false},
-		{MakeStoreKey(1), 0, false},
+		{MakeStoreDescKey(1), 0, false},
 	}
 
 	for _, tc := range testCases {
 		t.Run(tc.key, func(t *testing.T) {
-			nodeID, err := NodeIDFromKey(tc.key, KeyNodeIDPrefix)
+			nodeID, err := DecodeNodeDescKey(tc.key, KeyNodeDescPrefix)
 			if err != nil {
 				if tc.success {
 					t.Errorf("expected success, got error: %s", err)
@@ -63,19 +63,19 @@ func TestStoreIDFromKey(t *testing.T) {
 		storeID roachpb.StoreID
 		success bool
 	}{
-		{MakeStoreKey(0), 0, true},
-		{MakeStoreKey(1), 1, true},
-		{MakeStoreKey(123), 123, true},
-		{MakeStoreKey(123) + "foo", 0, false},
-		{"foo" + MakeStoreKey(123), 0, false},
-		{KeyStorePrefix, 0, false},
+		{MakeStoreDescKey(0), 0, true},
+		{MakeStoreDescKey(1), 1, true},
+		{MakeStoreDescKey(123), 123, true},
+		{MakeStoreDescKey(123) + "foo", 0, false},
+		{"foo" + MakeStoreDescKey(123), 0, false},
+		{KeyStoreDescPrefix, 0, false},
 		{"123", 0, false},
-		{MakePrefixPattern(KeyStorePrefix), 0, false},
+		{MakePrefixPattern(KeyStoreDescPrefix), 0, false},
 	}
 
 	for _, tc := range testCases {
 		t.Run(tc.key, func(t *testing.T) {
-			storeID, err := StoreIDFromKey(tc.key)
+			storeID, err := DecodeStoreDescKey(tc.key)
 			if err != nil {
 				if tc.success {
 					t.Errorf("expected success, got error: %s", err)

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

@@ -7597,7 +7597,7 @@ func TestAllocatorFullDisks(t *testing.T) {
 	}, nil)
 
 	var wg sync.WaitGroup
-	g.RegisterCallback(gossip.MakePrefixPattern(gossip.KeyStorePrefix),
+	g.RegisterCallback(gossip.MakePrefixPattern(gossip.KeyStoreDescPrefix),
 		func(_ string, _ roachpb.Value) { wg.Done() },
 		// Redundant callbacks are required by this test.
 		gossip.Redundant)
@@ -7640,7 +7640,7 @@ func TestAllocatorFullDisks(t *testing.T) {
 				mockNodeLiveness.SetNodeStatus(roachpb.NodeID(j), livenesspb.NodeLivenessStatus_DEAD)
 			}
 			wg.Add(1)
-			if err := g.AddInfoProto(gossip.MakeStoreKey(roachpb.StoreID(j)), &ts.StoreDescriptor, 0); err != nil {
+			if err := g.AddInfoProto(gossip.MakeStoreDescKey(roachpb.StoreID(j)), &ts.StoreDescriptor, 0); err != nil {
 				t.Fatal(err)
 			}
 		}
@@ -7676,7 +7676,7 @@ func TestAllocatorFullDisks(t *testing.T) {
 				// Gossip occasionally, as real Stores do when replicas move around.
 				if j%3 == 2 {
 					wg.Add(1)
-					if err := g.AddInfoProto(gossip.MakeStoreKey(roachpb.StoreID(j)), &ts.StoreDescriptor, 0); err != nil {
+					if err := g.AddInfoProto(gossip.MakeStoreDescKey(roachpb.StoreID(j)), &ts.StoreDescriptor, 0); err != nil {
 						t.Fatal(err)
 					}
 				}
@@ -8043,7 +8043,7 @@ func exampleRebalancing(
 	}, nil)
 
 	var wg sync.WaitGroup
-	g.RegisterCallback(gossip.MakePrefixPattern(gossip.KeyStorePrefix),
+	g.RegisterCallback(gossip.MakePrefixPattern(gossip.KeyStoreDescPrefix),
 		func(_ string, _ roachpb.Value) { wg.Done() },
 		// Redundant callbacks are required by this test.
 		gossip.Redundant)
@@ -8076,7 +8076,7 @@ func exampleRebalancing(
 				testStores[j].add(alloc.randGen.Int63n(1<<20), 0)
 			}
 			if err := g.AddInfoProto(
-				gossip.MakeStoreKey(roachpb.StoreID(j)),
+				gossip.MakeStoreDescKey(roachpb.StoreID(j)),
 				&testStores[j].StoreDescriptor,
 				0,
 			); err != nil {

pkg/kv/kvserver/allocator/storepool/store_pool.go

@@ -401,7 +401,7 @@ func NewStorePool(
 	// Enable redundant callbacks for the store keys because we use these
 	// callbacks as a clock to determine when a store was last updated even if it
 	// hasn't otherwise changed.
-	storeRegex := gossip.MakePrefixPattern(gossip.KeyStorePrefix)
+	storeRegex := gossip.MakePrefixPattern(gossip.KeyStoreDescPrefix)
 	g.RegisterCallback(storeRegex, sp.storeGossipUpdate, gossip.Redundant)
 
 	return sp

pkg/kv/kvserver/client_split_test.go

@@ -2260,7 +2260,7 @@ func TestStoreRangeGossipOnSplits(t *testing.T) {
 	defer s.Stopper().Stop(ctx)
 	store, err := s.Stores().GetStore(s.GetFirstStoreID())
 	require.NoError(t, err)
-	storeKey := gossip.MakeStoreKey(store.StoreID())
+	storeKey := gossip.MakeStoreDescKey(store.StoreID())
 
 	// Avoid excessive logging on under-replicated ranges due to our many splits.
 	config.TestingSetupZoneConfigHook(s.Stopper())

pkg/kv/kvserver/replicate_queue.go

@@ -406,14 +406,14 @@ func newReplicateQueue(store *Store, allocator allocatorimpl.Allocator) *replica
 	// Register gossip and node liveness callbacks to signal that
 	// replicas in purgatory might be retried.
 	if g := store.cfg.Gossip; g != nil { // gossip is nil for some unittests
-		g.RegisterCallback(gossip.MakePrefixPattern(gossip.KeyStorePrefix), func(key string, _ roachpb.Value) {
+		g.RegisterCallback(gossip.MakePrefixPattern(gossip.KeyStoreDescPrefix), func(key string, _ roachpb.Value) {
 			if !rq.store.IsStarted() {
 				return
 			}
 			// Because updates to our store's own descriptor won't affect
 			// replicas in purgatory, skip updating the purgatory channel
 			// in this case.
-			if storeID, err := gossip.StoreIDFromKey(key); err == nil && storeID == rq.store.StoreID() {
+			if storeID, err := gossip.DecodeStoreDescKey(key); err == nil && storeID == rq.store.StoreID() {
 				return
 			}
 			updateFn()

pkg/kv/kvserver/store.go

@@ -2533,7 +2533,7 @@ func (s *Store) GossipStore(ctx context.Context, useCached bool) error {
 	syncutil.StoreFloat64(&s.gossipWritesPerSecondVal, storeDesc.Capacity.WritesPerSecond)
 
 	// Unique gossip key per store.
-	gossipStoreKey := gossip.MakeStoreKey(storeDesc.StoreID)
+	gossipStoreKey := gossip.MakeStoreDescKey(storeDesc.StoreID)
 	// Gossip store descriptor.
 	return s.cfg.Gossip.AddInfoProto(gossipStoreKey, storeDesc, gossip.StoreTTL)
 }

pkg/server/node.go

@@ -885,7 +885,7 @@ func (n *Node) writeNodeStatus(ctx context.Context, alertTTL time.Duration, must
 
 		if result := n.recorder.CheckHealth(ctx, *nodeStatus); len(result.Alerts) != 0 {
 			var numNodes int
-			if err := n.storeCfg.Gossip.IterateInfos(gossip.KeyNodeIDPrefix, func(k string, info gossip.Info) error {
+			if err := n.storeCfg.Gossip.IterateInfos(gossip.KeyNodeDescPrefix, func(k string, info gossip.Info) error {
 				numNodes++
 				return nil
 			}); err != nil {

pkg/sql/crdb_internal.go

@@ -3703,7 +3703,7 @@ func getAllNodeDescriptors(p *planner) ([]roachpb.NodeDescriptor, error) {
 		return nil, err
 	}
 	var descriptors []roachpb.NodeDescriptor
-	if err := g.IterateInfos(gossip.KeyNodeIDPrefix, func(key string, i gossip.Info) error {
+	if err := g.IterateInfos(gossip.KeyNodeDescPrefix, func(key string, i gossip.Info) error {
 		bytes, err := i.Value.GetBytes()
 		if err != nil {
 			return errors.NewAssertionErrorWithWrappedErrf(err,
@@ -3783,7 +3783,7 @@ CREATE TABLE crdb_internal.gossip_nodes (
 		}
 
 		stats := make(map[roachpb.NodeID]nodeStats)
-		if err := g.IterateInfos(gossip.KeyStorePrefix, func(key string, i gossip.Info) error {
+		if err := g.IterateInfos(gossip.KeyStoreDescPrefix, func(key string, i gossip.Info) error {
 			bytes, err := i.Value.GetBytes()
 			if err != nil {
 				return errors.NewAssertionErrorWithWrappedErrf(err,
@@ -4027,7 +4027,7 @@ CREATE TABLE crdb_internal.gossip_alerts (
 				return errors.NewAssertionErrorWithWrappedErrf(err,
 					"failed to parse value for key %q", key)
 			}
-			nodeID, err := gossip.NodeIDFromKey(key, gossip.KeyNodeHealthAlertPrefix)
+			nodeID, err := gossip.DecodeNodeDescKey(key, gossip.KeyNodeHealthAlertPrefix)
 			if err != nil {
 				return errors.NewAssertionErrorWithWrappedErrf(err,
 					"failed to parse node ID from key %q", key)

pkg/sql/relocate.go

@@ -168,7 +168,7 @@ func (n *relocateNode) Close(ctx context.Context) {
 
 func lookupStoreDesc(storeID roachpb.StoreID, params runParams) (*roachpb.StoreDescriptor, error) {
 	var storeDesc roachpb.StoreDescriptor
-	gossipStoreKey := gossip.MakeStoreKey(storeID)
+	gossipStoreKey := gossip.MakeStoreDescKey(storeID)
 	g, err := params.extendedEvalCtx.ExecCfg.Gossip.OptionalErr(54250)
 	if err != nil {
 		return nil, err

pkg/testutils/gossiputil/store_gossiper.go

@@ -39,7 +39,7 @@ func NewStoreGossiper(g *gossip.Gossip) *StoreGossiper {
 	sg.cond = sync.NewCond(&sg.mu)
 	// Redundant callbacks are required by StoreGossiper. See GossipWithFunction
 	// which waits for all of the callbacks to be invoked.
-	g.RegisterCallback(gossip.MakePrefixPattern(gossip.KeyStorePrefix), func(key string, _ roachpb.Value) {
+	g.RegisterCallback(gossip.MakePrefixPattern(gossip.KeyStoreDescPrefix), func(key string, _ roachpb.Value) {
 		sg.mu.Lock()
 		defer sg.mu.Unlock()
 		delete(sg.storeKeyMap, key)
@@ -57,7 +57,7 @@ func (sg *StoreGossiper) GossipStores(storeDescs []*roachpb.StoreDescriptor, t *
 	}
 	sg.GossipWithFunction(storeIDs, func() {
 		for i, storeDesc := range storeDescs {
-			if err := sg.g.AddInfoProto(gossip.MakeStoreKey(storeIDs[i]), storeDesc, 0); err != nil {
+			if err := sg.g.AddInfoProto(gossip.MakeStoreDescKey(storeIDs[i]), storeDesc, 0); err != nil {
 				t.Fatal(err)
 			}
 		}
@@ -71,7 +71,7 @@ func (sg *StoreGossiper) GossipWithFunction(storeIDs []roachpb.StoreID, gossipFn
 	defer sg.mu.Unlock()
 	sg.storeKeyMap = make(map[string]struct{})
 	for _, storeID := range storeIDs {
-		storeKey := gossip.MakeStoreKey(storeID)
+		storeKey := gossip.MakeStoreDescKey(storeID)
 		sg.storeKeyMap[storeKey] = struct{}{}
 	}