rebase: bump google.golang.org/grpc from 1.48.0 to 1.49.0

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.48.0 to 1.49.0.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](https://github.com/grpc/grpc-go/compare/v1.48.0...v1.49.0)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -28,7 +28,7 @@ require (
 	golang.org/x/crypto v0.0.0-20220315160706-3147a52a75dd
 	golang.org/x/net v0.0.0-20220722155237-a158d28d115b
 	golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f
-	google.golang.org/grpc v1.48.0
+	google.golang.org/grpc v1.49.0
 	google.golang.org/protobuf v1.28.0
 	k8s.io/api v0.25.0
 	k8s.io/apimachinery v0.25.0

go.sum

@@ -1761,8 +1761,8 @@ google.golang.org/grpc v1.41.0/go.mod h1:U3l9uK9J0sini8mHphKoXyaqDA/8VyGnDee1zzI
 google.golang.org/grpc v1.44.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
 google.golang.org/grpc v1.46.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
 google.golang.org/grpc v1.47.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
-google.golang.org/grpc v1.48.0 h1:rQOsyJ/8+ufEDJd/Gdsz7HG220Mh9HAhFHRGnIjda0w=
-google.golang.org/grpc v1.48.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
+google.golang.org/grpc v1.49.0 h1:WTLtQzmQori5FUH25Pq4WT22oCsv8USpQ+F6rqtsmxw=
+google.golang.org/grpc v1.49.0/go.mod h1:ZgQEeidpAuNRZ8iRrlBKXZQP1ghovWIVhdJRyCDK+GI=
 google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=
 google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=

vendor/google.golang.org/grpc/balancer/balancer.go

@@ -371,56 +371,3 @@ type ClientConnState struct {
 // ErrBadResolverState may be returned by UpdateClientConnState to indicate a
 // problem with the provided name resolver data.
 var ErrBadResolverState = errors.New("bad resolver state")
-
-// ConnectivityStateEvaluator takes the connectivity states of multiple SubConns
-// and returns one aggregated connectivity state.
-//
-// It's not thread safe.
-type ConnectivityStateEvaluator struct {
-	numReady            uint64 // Number of addrConns in ready state.
-	numConnecting       uint64 // Number of addrConns in connecting state.
-	numTransientFailure uint64 // Number of addrConns in transient failure state.
-	numIdle             uint64 // Number of addrConns in idle state.
-}
-
-// RecordTransition records state change happening in subConn and based on that
-// it evaluates what aggregated state should be.
-//
-//  - If at least one SubConn in Ready, the aggregated state is Ready;
-//  - Else if at least one SubConn in Connecting, the aggregated state is Connecting;
-//  - Else if at least one SubConn is TransientFailure, the aggregated state is Transient Failure;
-//  - Else if at least one SubConn is Idle, the aggregated state is Idle;
-//  - Else there are no subconns and the aggregated state is Transient Failure
-//
-// Shutdown is not considered.
-func (cse *ConnectivityStateEvaluator) RecordTransition(oldState, newState connectivity.State) connectivity.State {
-	// Update counters.
-	for idx, state := range []connectivity.State{oldState, newState} {
-		updateVal := 2*uint64(idx) - 1 // -1 for oldState and +1 for new.
-		switch state {
-		case connectivity.Ready:
-			cse.numReady += updateVal
-		case connectivity.Connecting:
-			cse.numConnecting += updateVal
-		case connectivity.TransientFailure:
-			cse.numTransientFailure += updateVal
-		case connectivity.Idle:
-			cse.numIdle += updateVal
-		}
-	}
-
-	// Evaluate.
-	if cse.numReady > 0 {
-		return connectivity.Ready
-	}
-	if cse.numConnecting > 0 {
-		return connectivity.Connecting
-	}
-	if cse.numTransientFailure > 0 {
-		return connectivity.TransientFailure
-	}
-	if cse.numIdle > 0 {
-		return connectivity.Idle
-	}
-	return connectivity.TransientFailure
-}

vendor/google.golang.org/grpc/balancer/conn_state_evaluator.go

@@ -0,0 +1,70 @@
+/*
+ *
+ * Copyright 2022 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package balancer
+
+import "google.golang.org/grpc/connectivity"
+
+// ConnectivityStateEvaluator takes the connectivity states of multiple SubConns
+// and returns one aggregated connectivity state.
+//
+// It's not thread safe.
+type ConnectivityStateEvaluator struct {
+	numReady            uint64 // Number of addrConns in ready state.
+	numConnecting       uint64 // Number of addrConns in connecting state.
+	numTransientFailure uint64 // Number of addrConns in transient failure state.
+	numIdle             uint64 // Number of addrConns in idle state.
+}
+
+// RecordTransition records state change happening in subConn and based on that
+// it evaluates what aggregated state should be.
+//
+//  - If at least one SubConn in Ready, the aggregated state is Ready;
+//  - Else if at least one SubConn in Connecting, the aggregated state is Connecting;
+//  - Else if at least one SubConn is Idle, the aggregated state is Idle;
+//  - Else if at least one SubConn is TransientFailure (or there are no SubConns), the aggregated state is Transient Failure.
+//
+// Shutdown is not considered.
+func (cse *ConnectivityStateEvaluator) RecordTransition(oldState, newState connectivity.State) connectivity.State {
+	// Update counters.
+	for idx, state := range []connectivity.State{oldState, newState} {
+		updateVal := 2*uint64(idx) - 1 // -1 for oldState and +1 for new.
+		switch state {
+		case connectivity.Ready:
+			cse.numReady += updateVal
+		case connectivity.Connecting:
+			cse.numConnecting += updateVal
+		case connectivity.TransientFailure:
+			cse.numTransientFailure += updateVal
+		case connectivity.Idle:
+			cse.numIdle += updateVal
+		}
+	}
+
+	// Evaluate.
+	if cse.numReady > 0 {
+		return connectivity.Ready
+	}
+	if cse.numConnecting > 0 {
+		return connectivity.Connecting
+	}
+	if cse.numIdle > 0 {
+		return connectivity.Idle
+	}
+	return connectivity.TransientFailure
+}

vendor/google.golang.org/grpc/clientconn.go

@@ -712,8 +712,8 @@ func (cc *ClientConn) newAddrConn(addrs []resolver.Address, opts balancer.NewSub
 	ac.ctx, ac.cancel = context.WithCancel(cc.ctx)
 	// Track ac in cc. This needs to be done before any getTransport(...) is called.
 	cc.mu.Lock()
+	defer cc.mu.Unlock()
 	if cc.conns == nil {
-		cc.mu.Unlock()
 		return nil, ErrClientConnClosing
 	}
 
@@ -732,7 +732,6 @@ func (cc *ClientConn) newAddrConn(addrs []resolver.Address, opts balancer.NewSub
 	})
 
 	cc.conns[ac] = struct{}{}
-	cc.mu.Unlock()
 	return ac, nil
 }
 

vendor/google.golang.org/grpc/dialoptions.go

@@ -84,7 +84,7 @@ var extraDialOptions []DialOption
 // EmptyDialOption does not alter the dial configuration. It can be embedded in
 // another structure to build custom dial options.
 //
-// Experimental
+// # Experimental
 //
 // Notice: This type is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -275,7 +275,7 @@ func WithBlock() DialOption {
 // the context.DeadlineExceeded error.
 // Implies WithBlock()
 //
-// Experimental
+// # Experimental
 //
 // Notice: This API is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -304,7 +304,7 @@ func WithInsecure() DialOption {
 // WithNoProxy returns a DialOption which disables the use of proxies for this
 // ClientConn. This is ignored if WithDialer or WithContextDialer are used.
 //
-// Experimental
+// # Experimental
 //
 // Notice: This API is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -335,7 +335,7 @@ func WithPerRPCCredentials(creds credentials.PerRPCCredentials) DialOption {
 // the ClientConn.WithCreds. This should not be used together with
 // WithTransportCredentials.
 //
-// Experimental
+// # Experimental
 //
 // Notice: This API is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -391,6 +391,12 @@ func WithDialer(f func(string, time.Duration) (net.Conn, error)) DialOption {
 // all the RPCs and underlying network connections in this ClientConn.
 func WithStatsHandler(h stats.Handler) DialOption {
 	return newFuncDialOption(func(o *dialOptions) {
+		if h == nil {
+			logger.Error("ignoring nil parameter in grpc.WithStatsHandler ClientOption")
+			// Do not allow a nil stats handler, which would otherwise cause
+			// panics.
+			return
+		}
 		o.copts.StatsHandlers = append(o.copts.StatsHandlers, h)
 	})
 }
@@ -403,7 +409,7 @@ func WithStatsHandler(h stats.Handler) DialOption {
 // FailOnNonTempDialError only affects the initial dial, and does not do
 // anything useful unless you are also using WithBlock().
 //
-// Experimental
+// # Experimental
 //
 // Notice: This API is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -483,7 +489,7 @@ func WithAuthority(a string) DialOption {
 // current ClientConn's parent. This function is used in nested channel creation
 // (e.g. grpclb dial).
 //
-// Experimental
+// # Experimental
 //
 // Notice: This API is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -528,9 +534,6 @@ func WithDefaultServiceConfig(s string) DialOption {
 // service config enables them.  This does not impact transparent retries, which
 // will happen automatically if no data is written to the wire or if the RPC is
 // unprocessed by the remote server.
-//
-// Retry support is currently enabled by default, but may be disabled by
-// setting the environment variable "GRPC_GO_RETRY" to "off".
 func WithDisableRetry() DialOption {
 	return newFuncDialOption(func(o *dialOptions) {
 		o.disableRetry = true
@@ -548,7 +551,7 @@ func WithMaxHeaderListSize(s uint32) DialOption {
 // WithDisableHealthCheck disables the LB channel health checking for all
 // SubConns of this ClientConn.
 //
-// Experimental
+// # Experimental
 //
 // Notice: This API is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -595,7 +598,7 @@ func withMinConnectDeadline(f func() time.Duration) DialOption {
 // resolver.Register.  They will be matched against the scheme used for the
 // current Dial only, and will take precedence over the global registry.
 //
-// Experimental
+// # Experimental
 //
 // Notice: This API is EXPERIMENTAL and may be changed or removed in a
 // later release.

vendor/google.golang.org/grpc/internal/envconfig/xds.go

@@ -41,7 +41,6 @@ const (
 	clientSideSecuritySupportEnv = "GRPC_XDS_EXPERIMENTAL_SECURITY_SUPPORT"
 	aggregateAndDNSSupportEnv    = "GRPC_XDS_EXPERIMENTAL_ENABLE_AGGREGATE_AND_LOGICAL_DNS_CLUSTER"
 	rbacSupportEnv               = "GRPC_XDS_EXPERIMENTAL_RBAC"
-	outlierDetectionSupportEnv   = "GRPC_EXPERIMENTAL_ENABLE_OUTLIER_DETECTION"
 	federationEnv                = "GRPC_EXPERIMENTAL_XDS_FEDERATION"
 	rlsInXDSEnv                  = "GRPC_EXPERIMENTAL_XDS_RLS_LB"
 
@@ -86,7 +85,7 @@ var (
 	// XDSOutlierDetection indicates whether outlier detection support is
 	// enabled, which can be enabled by setting the environment variable
 	// "GRPC_EXPERIMENTAL_ENABLE_OUTLIER_DETECTION" to "true".
-	XDSOutlierDetection = strings.EqualFold(os.Getenv(outlierDetectionSupportEnv), "true")
+	XDSOutlierDetection = false
 	// XDSFederation indicates whether federation support is enabled.
 	XDSFederation = strings.EqualFold(os.Getenv(federationEnv), "true")
 

vendor/google.golang.org/grpc/internal/grpcutil/method.go

@@ -39,6 +39,11 @@ func ParseMethod(methodName string) (service, method string, _ error) {
 	return methodName[:pos], methodName[pos+1:], nil
 }
 
+// baseContentType is the base content-type for gRPC.  This is a valid
+// content-type on it's own, but can also include a content-subtype such as
+// "proto" as a suffix after "+" or ";".  See
+// https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md#requests
+// for more details.
 const baseContentType = "application/grpc"
 
 // ContentSubtype returns the content-subtype for the given content-type.  The

vendor/google.golang.org/grpc/internal/transport/http2_client.go

@@ -78,6 +78,7 @@ type http2Client struct {
 	framer *framer
 	// controlBuf delivers all the control related tasks (e.g., window
 	// updates, reset streams, and various settings) to the controller.
+	// Do not access controlBuf with mu held.
 	controlBuf *controlBuffer
 	fc         *trInFlow
 	// The scheme used: https if TLS is on, http otherwise.
@@ -109,6 +110,7 @@ type http2Client struct {
 	waitingStreams        uint32
 	nextID                uint32
 
+	// Do not access controlBuf with mu held.
 	mu            sync.Mutex // guard the following variables
 	state         transportState
 	activeStreams map[uint32]*Stream
@@ -685,7 +687,6 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (*Stream,
 				cleanup(err)
 				return err
 			}
-			t.activeStreams[id] = s
 			if channelz.IsOn() {
 				atomic.AddInt64(&t.czData.streamsStarted, 1)
 				atomic.StoreInt64(&t.czData.lastStreamCreatedTime, time.Now().UnixNano())
@@ -719,6 +720,13 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (*Stream,
 		t.nextID += 2
 		s.id = h.streamID
 		s.fc = &inFlow{limit: uint32(t.initialWindowSize)}
+		t.mu.Lock()
+		if t.activeStreams == nil { // Can be niled from Close().
+			t.mu.Unlock()
+			return false // Don't create a stream if the transport is already closed.
+		}
+		t.activeStreams[s.id] = s
+		t.mu.Unlock()
 		if t.streamQuota > 0 && t.waitingStreams > 0 {
 			select {
 			case t.streamsQuotaAvailable <- struct{}{}:
@@ -744,13 +752,7 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (*Stream,
 	}
 	for {
 		success, err := t.controlBuf.executeAndPut(func(it interface{}) bool {
-			if !checkForStreamQuota(it) {
-				return false
-			}
-			if !checkForHeaderListSize(it) {
-				return false
-			}
-			return true
+			return checkForHeaderListSize(it) && checkForStreamQuota(it)
 		}, hdr)
 		if err != nil {
 			// Connection closed.
@@ -1003,13 +1005,13 @@ func (t *http2Client) updateWindow(s *Stream, n uint32) {
 // for the transport and the stream based on the current bdp
 // estimation.
 func (t *http2Client) updateFlowControl(n uint32) {
-	t.mu.Lock()
-	for _, s := range t.activeStreams {
-		s.fc.newLimit(n)
-	}
-	t.mu.Unlock()
 	updateIWS := func(interface{}) bool {
 		t.initialWindowSize = int32(n)
+		t.mu.Lock()
+		for _, s := range t.activeStreams {
+			s.fc.newLimit(n)
+		}
+		t.mu.Unlock()
 		return true
 	}
 	t.controlBuf.executeAndPut(updateIWS, &outgoingWindowUpdate{streamID: 0, increment: t.fc.newLimit(n)})
@@ -1215,7 +1217,7 @@ func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
 	default:
 		t.setGoAwayReason(f)
 		close(t.goAway)
-		t.controlBuf.put(&incomingGoAway{})
+		defer t.controlBuf.put(&incomingGoAway{}) // Defer as t.mu is currently held.
 		// Notify the clientconn about the GOAWAY before we set the state to
 		// draining, to allow the client to stop attempting to create streams
 		// before disallowing new streams on this connection.

vendor/google.golang.org/grpc/internal/transport/http2_server.go

@@ -945,15 +945,16 @@ func (t *http2Server) streamContextErr(s *Stream) error {
 
 // WriteHeader sends the header metadata md back to the client.
 func (t *http2Server) WriteHeader(s *Stream, md metadata.MD) error {
-	if s.updateHeaderSent() {
-		return ErrIllegalHeaderWrite
-	}
-
+	s.hdrMu.Lock()
+	defer s.hdrMu.Unlock()
 	if s.getState() == streamDone {
 		return t.streamContextErr(s)
 	}
 
-	s.hdrMu.Lock()
+	if s.updateHeaderSent() {
+		return ErrIllegalHeaderWrite
+	}
+
 	if md.Len() > 0 {
 		if s.header.Len() > 0 {
 			s.header = metadata.Join(s.header, md)
@@ -962,10 +963,8 @@ func (t *http2Server) WriteHeader(s *Stream, md metadata.MD) error {
 		}
 	}
 	if err := t.writeHeaderLocked(s); err != nil {
-		s.hdrMu.Unlock()
 		return status.Convert(err).Err()
 	}
-	s.hdrMu.Unlock()
 	return nil
 }
 
@@ -1013,17 +1012,19 @@ func (t *http2Server) writeHeaderLocked(s *Stream) error {
 // TODO(zhaoq): Now it indicates the end of entire stream. Revisit if early
 // OK is adopted.
 func (t *http2Server) WriteStatus(s *Stream, st *status.Status) error {
+	s.hdrMu.Lock()
+	defer s.hdrMu.Unlock()
+
 	if s.getState() == streamDone {
 		return nil
 	}
-	s.hdrMu.Lock()
+
 	// TODO(mmukhi): Benchmark if the performance gets better if count the metadata and other header fields
 	// first and create a slice of that exact size.
 	headerFields := make([]hpack.HeaderField, 0, 2) // grpc-status and grpc-message will be there if none else.
 	if !s.updateHeaderSent() {                      // No headers have been sent.
 		if len(s.header) > 0 { // Send a separate header frame.
 			if err := t.writeHeaderLocked(s); err != nil {
-				s.hdrMu.Unlock()
 				return err
 			}
 		} else { // Send a trailer only response.
@@ -1052,7 +1053,7 @@ func (t *http2Server) WriteStatus(s *Stream, st *status.Status) error {
 		endStream: true,
 		onWrite:   t.setResetPingStrikes,
 	}
-	s.hdrMu.Unlock()
+
 	success, err := t.controlBuf.execute(t.checkForHeaderListSize, trailingHeader)
 	if !success {
 		if err != nil {

vendor/google.golang.org/grpc/internal/transport/http_util.go

@@ -47,12 +47,6 @@ const (
 	http2MaxFrameLen = 16384 // 16KB frame
 	// http://http2.github.io/http2-spec/#SettingValues
 	http2InitHeaderTableSize = 4096
-	// baseContentType is the base content-type for gRPC.  This is a valid
-	// content-type on it's own, but can also include a content-subtype such as
-	// "proto" as a suffix after "+" or ";".  See
-	// https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md#requests
-	// for more details.
-
 )
 
 var (

vendor/google.golang.org/grpc/server.go

@@ -190,7 +190,7 @@ type ServerOption interface {
 // EmptyServerOption does not alter the server configuration. It can be embedded
 // in another structure to build custom server options.
 //
-// Experimental
+// # Experimental
 //
 // Notice: This type is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -305,7 +305,7 @@ func CustomCodec(codec Codec) ServerOption {
 // https://github.com/grpc/grpc-go/blob/master/Documentation/encoding.md#using-a-codec.
 // Will be supported throughout 1.x.
 //
-// Experimental
+// # Experimental
 //
 // Notice: This API is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -426,7 +426,7 @@ func ChainStreamInterceptor(interceptors ...StreamServerInterceptor) ServerOptio
 // InTapHandle returns a ServerOption that sets the tap handle for all the server
 // transport to be created. Only one can be installed.
 //
-// Experimental
+// # Experimental
 //
 // Notice: This API is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -442,6 +442,12 @@ func InTapHandle(h tap.ServerInHandle) ServerOption {
 // StatsHandler returns a ServerOption that sets the stats handler for the server.
 func StatsHandler(h stats.Handler) ServerOption {
 	return newFuncServerOption(func(o *serverOptions) {
+		if h == nil {
+			logger.Error("ignoring nil parameter in grpc.StatsHandler ServerOption")
+			// Do not allow a nil stats handler, which would otherwise cause
+			// panics.
+			return
+		}
 		o.statsHandlers = append(o.statsHandlers, h)
 	})
 }
@@ -469,7 +475,7 @@ func UnknownServiceHandler(streamHandler StreamHandler) ServerOption {
 // new connections.  If this is not set, the default is 120 seconds.  A zero or
 // negative value will result in an immediate timeout.
 //
-// Experimental
+// # Experimental
 //
 // Notice: This API is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -490,7 +496,7 @@ func MaxHeaderListSize(s uint32) ServerOption {
 // HeaderTableSize returns a ServerOption that sets the size of dynamic
 // header table for stream.
 //
-// Experimental
+// # Experimental
 //
 // Notice: This API is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -505,7 +511,7 @@ func HeaderTableSize(s uint32) ServerOption {
 // zero (default) will disable workers and spawn a new goroutine for each
 // stream.
 //
-// Experimental
+// # Experimental
 //
 // Notice: This API is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -898,7 +904,7 @@ func (s *Server) newHTTP2Transport(c net.Conn) transport.ServerTransport {
 		if err != credentials.ErrConnDispatched {
 			// Don't log on ErrConnDispatched and io.EOF to prevent log spam.
 			if err != io.EOF {
-				channelz.Warning(logger, s.channelzID, "grpc: Server.Serve failed to create ServerTransport: ", err)
+				channelz.Info(logger, s.channelzID, "grpc: Server.Serve failed to create ServerTransport: ", err)
 			}
 			c.Close()
 		}
@@ -956,19 +962,19 @@ var _ http.Handler = (*Server)(nil)
 // To share one port (such as 443 for https) between gRPC and an
 // existing http.Handler, use a root http.Handler such as:
 //
-//   if r.ProtoMajor == 2 && strings.HasPrefix(
-//   	r.Header.Get("Content-Type"), "application/grpc") {
-//   	grpcServer.ServeHTTP(w, r)
-//   } else {
-//   	yourMux.ServeHTTP(w, r)
-//   }
+//	if r.ProtoMajor == 2 && strings.HasPrefix(
+//		r.Header.Get("Content-Type"), "application/grpc") {
+//		grpcServer.ServeHTTP(w, r)
+//	} else {
+//		yourMux.ServeHTTP(w, r)
+//	}
 //
 // Note that ServeHTTP uses Go's HTTP/2 server implementation which is totally
 // separate from grpc-go's HTTP/2 server. Performance and features may vary
 // between the two paths. ServeHTTP does not support some gRPC features
 // available through grpc-go's HTTP/2 server.
 //
-// Experimental
+// # Experimental
 //
 // Notice: This API is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -1674,7 +1680,7 @@ type streamKey struct{}
 // NewContextWithServerTransportStream creates a new context from ctx and
 // attaches stream to it.
 //
-// Experimental
+// # Experimental
 //
 // Notice: This API is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -1689,7 +1695,7 @@ func NewContextWithServerTransportStream(ctx context.Context, stream ServerTrans
 //
 // See also NewContextWithServerTransportStream.
 //
-// Experimental
+// # Experimental
 //
 // Notice: This type is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -1704,7 +1710,7 @@ type ServerTransportStream interface {
 // ctx. Returns nil if the given context has no stream associated with it
 // (which implies it is not an RPC invocation context).
 //
-// Experimental
+// # Experimental
 //
 // Notice: This API is EXPERIMENTAL and may be changed or removed in a
 // later release.
@@ -1825,12 +1831,12 @@ func (s *Server) getCodec(contentSubtype string) baseCodec {
 // When called multiple times, all the provided metadata will be merged.  All
 // the metadata will be sent out when one of the following happens:
 //
-// - grpc.SendHeader is called, or for streaming handlers, stream.SendHeader.
-// - The first response message is sent.  For unary handlers, this occurs when
-//   the handler returns; for streaming handlers, this can happen when stream's
-//   SendMsg method is called.
-// - An RPC status is sent out (error or success).  This occurs when the handler
-//   returns.
+//   - grpc.SendHeader is called, or for streaming handlers, stream.SendHeader.
+//   - The first response message is sent.  For unary handlers, this occurs when
+//     the handler returns; for streaming handlers, this can happen when stream's
+//     SendMsg method is called.
+//   - An RPC status is sent out (error or success).  This occurs when the handler
+//     returns.
 //
 // SetHeader will fail if called after any of the events above.
 //

vendor/google.golang.org/grpc/service_config.go

@@ -57,10 +57,9 @@ type lbConfig struct {
 type ServiceConfig struct {
 	serviceconfig.Config
 
-	// LB is the load balancer the service providers recommends. The balancer
-	// specified via grpc.WithBalancerName will override this.  This is deprecated;
-	// lbConfigs is preferred.  If lbConfig and LB are both present, lbConfig
-	// will be used.
+	// LB is the load balancer the service providers recommends.  This is
+	// deprecated; lbConfigs is preferred.  If lbConfig and LB are both present,
+	// lbConfig will be used.
 	LB *string
 
 	// lbConfig is the service config's load balancing configuration.  If

vendor/google.golang.org/grpc/stream.go

@@ -140,13 +140,13 @@ type ClientStream interface {
 // To ensure resources are not leaked due to the stream returned, one of the following
 // actions must be performed:
 //
-//      1. Call Close on the ClientConn.
-//      2. Cancel the context provided.
-//      3. Call RecvMsg until a non-nil error is returned. A protobuf-generated
-//         client-streaming RPC, for instance, might use the helper function
-//         CloseAndRecv (note that CloseSend does not Recv, therefore is not
-//         guaranteed to release all resources).
-//      4. Receive a non-nil, non-io.EOF error from Header or SendMsg.
+//  1. Call Close on the ClientConn.
+//  2. Cancel the context provided.
+//  3. Call RecvMsg until a non-nil error is returned. A protobuf-generated
+//     client-streaming RPC, for instance, might use the helper function
+//     CloseAndRecv (note that CloseSend does not Recv, therefore is not
+//     guaranteed to release all resources).
+//  4. Receive a non-nil, non-io.EOF error from Header or SendMsg.
 //
 // If none of the above happen, a goroutine and a context will be leaked, and grpc
 // will not call the optionally-configured stats handler with a stats.End message.
@@ -303,12 +303,6 @@ func newClientStreamWithParams(ctx context.Context, desc *StreamDesc, cc *Client
 	}
 	cs.binlog = binarylog.GetMethodLogger(method)
 
-	cs.attempt, err = cs.newAttemptLocked(false /* isTransparent */)
-	if err != nil {
-		cs.finish(err)
-		return nil, err
-	}
-
 	// Pick the transport to use and create a new stream on the transport.
 	// Assign cs.attempt upon success.
 	op := func(a *csAttempt) error {
@@ -704,6 +698,18 @@ func (cs *clientStream) withRetry(op func(a *csAttempt) error, onSuccess func())
 			// already be status errors.
 			return toRPCErr(op(cs.attempt))
 		}
+		if len(cs.buffer) == 0 {
+			// For the first op, which controls creation of the stream and
+			// assigns cs.attempt, we need to create a new attempt inline
+			// before executing the first op.  On subsequent ops, the attempt
+			// is created immediately before replaying the ops.
+			var err error
+			if cs.attempt, err = cs.newAttemptLocked(false /* isTransparent */); err != nil {
+				cs.mu.Unlock()
+				cs.finish(err)
+				return err
+			}
+		}
 		a := cs.attempt
 		cs.mu.Unlock()
 		err := op(a)

vendor/google.golang.org/grpc/version.go

@@ -19,4 +19,4 @@
 package grpc
 
 // Version is the current grpc version.
-const Version = "1.48.0"
+const Version = "1.49.0"

vendor/google.golang.org/grpc/vet.sh

@@ -147,7 +147,6 @@ grpc.NewGZIPDecompressor
 grpc.RPCCompressor
 grpc.RPCDecompressor
 grpc.ServiceConfig
-grpc.WithBalancerName
 grpc.WithCompressor
 grpc.WithDecompressor
 grpc.WithDialer

vendor/modules.txt

@@ -679,8 +679,8 @@ google.golang.org/appengine/urlfetch
 google.golang.org/genproto/googleapis/api/httpbody
 google.golang.org/genproto/googleapis/rpc/status
 google.golang.org/genproto/protobuf/field_mask
-# google.golang.org/grpc v1.48.0
-## explicit; go 1.14
+# google.golang.org/grpc v1.49.0
+## explicit; go 1.17
 google.golang.org/grpc
 google.golang.org/grpc/attributes
 google.golang.org/grpc/backoff