diff --git a/mesh/v1alpha1/istio.mesh.v1alpha1.gen.json b/mesh/v1alpha1/istio.mesh.v1alpha1.gen.json
index 926f521a9b..6a5c541028 100644
--- a/mesh/v1alpha1/istio.mesh.v1alpha1.gen.json
+++ b/mesh/v1alpha1/istio.mesh.v1alpha1.gen.json
@@ -907,25 +907,6 @@
             "description": "gRPC address for the OpenCensus agent (e.g. dns://authority/host:port or unix:path). See [gRPC naming docs](https://github.com/grpc/grpc/blob/master/doc/naming.md) for details.",
             "type": "string",
             "format": "string"
-          },
-          "debug": {
-            "description": "debug enables trace output to stdout $hide_from_docs",
-            "type": "boolean"
-          },
-          "maxNumberOfAttributes": {
-            "description": "The global default max number of attributes per span. default is 200. $hide_from_docs",
-            "type": "integer",
-            "nullable": true
-          },
-          "maxNumberOfAnnotations": {
-            "description": "The global default max number of annotation events per span. default is 200. $hide_from_docs",
-            "type": "integer",
-            "nullable": true
-          },
-          "maxNumberOfMessageEvents": {
-            "description": "The global default max number of message events per span. default is 200. $hide_from_docs",
-            "type": "integer",
-            "nullable": true
           }
         }
       },
diff --git a/mesh/v1alpha1/proxy.pb.go b/mesh/v1alpha1/proxy.pb.go
index 3c9aef4aba..c7116ae889 100644
--- a/mesh/v1alpha1/proxy.pb.go
+++ b/mesh/v1alpha1/proxy.pb.go
@@ -637,25 +637,10 @@ type Tracing_OpenCensusAgent struct {
 	// tracing. Default is `["W3C_TRACE_CONTEXT"]`. If multiple values are specified,
 	// the proxy will attempt to read each header for each request and will
 	// write all headers.
-	Context []Tracing_OpenCensusAgent_TraceContext `protobuf:"varint,2,rep,packed,name=context,proto3,enum=istio.mesh.v1alpha1.Tracing_OpenCensusAgent_TraceContext" json:"context,omitempty"`
-	// debug enables trace output to stdout
-	// $hide_from_docs
-	Debug bool `protobuf:"varint,3,opt,name=debug,proto3" json:"debug,omitempty"`
-	// The global default max number of attributes per span.
-	// default is 200.
-	// $hide_from_docs
-	MaxNumberOfAttributes *types.Int64Value `protobuf:"bytes,4,opt,name=max_number_of_attributes,json=maxNumberOfAttributes,proto3" json:"maxNumberOfAttributes,omitempty"`
-	// The global default max number of annotation events per span.
-	// default is 200.
-	// $hide_from_docs
-	MaxNumberOfAnnotations *types.Int64Value `protobuf:"bytes,5,opt,name=max_number_of_annotations,json=maxNumberOfAnnotations,proto3" json:"maxNumberOfAnnotations,omitempty"`
-	// The global default max number of message events per span.
-	// default is 200.
-	// $hide_from_docs
-	MaxNumberOfMessageEvents *types.Int64Value `protobuf:"bytes,6,opt,name=max_number_of_message_events,json=maxNumberOfMessageEvents,proto3" json:"maxNumberOfMessageEvents,omitempty"`
-	XXX_NoUnkeyedLiteral     struct{}          `json:"-"`
-	XXX_unrecognized         []byte            `json:"-"`
-	XXX_sizecache            int32             `json:"-"`
+	Context              []Tracing_OpenCensusAgent_TraceContext `protobuf:"varint,2,rep,packed,name=context,proto3,enum=istio.mesh.v1alpha1.Tracing_OpenCensusAgent_TraceContext" json:"context,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}                               `json:"-"`
+	XXX_unrecognized     []byte                                 `json:"-"`
+	XXX_sizecache        int32                                  `json:"-"`
 }
 
 func (m *Tracing_OpenCensusAgent) Reset()         { *m = Tracing_OpenCensusAgent{} }
@@ -705,34 +690,6 @@ func (m *Tracing_OpenCensusAgent) GetContext() []Tracing_OpenCensusAgent_TraceCo
 	return nil
 }
 
-func (m *Tracing_OpenCensusAgent) GetDebug() bool {
-	if m != nil {
-		return m.Debug
-	}
-	return false
-}
-
-func (m *Tracing_OpenCensusAgent) GetMaxNumberOfAttributes() *types.Int64Value {
-	if m != nil {
-		return m.MaxNumberOfAttributes
-	}
-	return nil
-}
-
-func (m *Tracing_OpenCensusAgent) GetMaxNumberOfAnnotations() *types.Int64Value {
-	if m != nil {
-		return m.MaxNumberOfAnnotations
-	}
-	return nil
-}
-
-func (m *Tracing_OpenCensusAgent) GetMaxNumberOfMessageEvents() *types.Int64Value {
-	if m != nil {
-		return m.MaxNumberOfMessageEvents
-	}
-	return nil
-}
-
 // Configure custom tags that will be added to any active span.
 // Tags can be generated via literals, environment variables or an incoming request header.
 // $hide_from_docs
@@ -1593,131 +1550,130 @@ func init() {
 func init() { proto.RegisterFile("mesh/v1alpha1/proxy.proto", fileDescriptor_5efecd978cf3d28d) }
 
 var fileDescriptor_5efecd978cf3d28d = []byte{
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+	0x00, 0xff, 0xff, 0x3e, 0x21, 0x00, 0xf2, 0xeb, 0x11, 0x00, 0x00,
 }
 
 func (m *Tracing) Marshal() (dAtA []byte, err error) {
@@ -2111,67 +2067,21 @@ func (m *Tracing_OpenCensusAgent) MarshalToSizedBuffer(dAtA []byte) (int, error)
 		i -= len(m.XXX_unrecognized)
 		copy(dAtA[i:], m.XXX_unrecognized)
 	}
-	if m.MaxNumberOfMessageEvents != nil {
-		{
-			size, err := m.MaxNumberOfMessageEvents.MarshalToSizedBuffer(dAtA[:i])
-			if err != nil {
-				return 0, err
-			}
-			i -= size
-			i = encodeVarintProxy(dAtA, i, uint64(size))
-		}
-		i--
-		dAtA[i] = 0x32
-	}
-	if m.MaxNumberOfAnnotations != nil {
-		{
-			size, err := m.MaxNumberOfAnnotations.MarshalToSizedBuffer(dAtA[:i])
-			if err != nil {
-				return 0, err
-			}
-			i -= size
-			i = encodeVarintProxy(dAtA, i, uint64(size))
-		}
-		i--
-		dAtA[i] = 0x2a
-	}
-	if m.MaxNumberOfAttributes != nil {
-		{
-			size, err := m.MaxNumberOfAttributes.MarshalToSizedBuffer(dAtA[:i])
-			if err != nil {
-				return 0, err
-			}
-			i -= size
-			i = encodeVarintProxy(dAtA, i, uint64(size))
-		}
-		i--
-		dAtA[i] = 0x22
-	}
-	if m.Debug {
-		i--
-		if m.Debug {
-			dAtA[i] = 1
-		} else {
-			dAtA[i] = 0
-		}
-		i--
-		dAtA[i] = 0x18
-	}
 	if len(m.Context) > 0 {
-		dAtA15 := make([]byte, len(m.Context)*10)
-		var j14 int
+		dAtA12 := make([]byte, len(m.Context)*10)
+		var j11 int
 		for _, num := range m.Context {
 			for num >= 1<<7 {
-				dAtA15[j14] = uint8(uint64(num)&0x7f | 0x80)
+				dAtA12[j11] = uint8(uint64(num)&0x7f | 0x80)
 				num >>= 7
-				j14++
+				j11++
 			}
-			dAtA15[j14] = uint8(num)
-			j14++
+			dAtA12[j11] = uint8(num)
+			j11++
 		}
-		i -= j14
-		copy(dAtA[i:], dAtA15[:j14])
-		i = encodeVarintProxy(dAtA, i, uint64(j14))
+		i -= j11
+		copy(dAtA[i:], dAtA12[:j11])
+		i = encodeVarintProxy(dAtA, i, uint64(j11))
 		i--
 		dAtA[i] = 0x12
 	}
@@ -3046,21 +2956,6 @@ func (m *Tracing_OpenCensusAgent) Size() (n int) {
 		}
 		n += 1 + sovProxy(uint64(l)) + l
 	}
-	if m.Debug {
-		n += 2
-	}
-	if m.MaxNumberOfAttributes != nil {
-		l = m.MaxNumberOfAttributes.Size()
-		n += 1 + l + sovProxy(uint64(l))
-	}
-	if m.MaxNumberOfAnnotations != nil {
-		l = m.MaxNumberOfAnnotations.Size()
-		n += 1 + l + sovProxy(uint64(l))
-	}
-	if m.MaxNumberOfMessageEvents != nil {
-		l = m.MaxNumberOfMessageEvents.Size()
-		n += 1 + l + sovProxy(uint64(l))
-	}
 	if m.XXX_unrecognized != nil {
 		n += len(m.XXX_unrecognized)
 	}
@@ -4392,134 +4287,6 @@ func (m *Tracing_OpenCensusAgent) Unmarshal(dAtA []byte) error {
 			} else {
 				return fmt.Errorf("proto: wrong wireType = %d for field Context", wireType)
 			}
-		case 3:
-			if wireType != 0 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Debug", wireType)
-			}
-			var v int
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowProxy
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				v |= int(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			m.Debug = bool(v != 0)
-		case 4:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field MaxNumberOfAttributes", wireType)
-			}
-			var msglen int
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowProxy
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				msglen |= int(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			if msglen < 0 {
-				return ErrInvalidLengthProxy
-			}
-			postIndex := iNdEx + msglen
-			if postIndex < 0 {
-				return ErrInvalidLengthProxy
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			if m.MaxNumberOfAttributes == nil {
-				m.MaxNumberOfAttributes = &types.Int64Value{}
-			}
-			if err := m.MaxNumberOfAttributes.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
-				return err
-			}
-			iNdEx = postIndex
-		case 5:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field MaxNumberOfAnnotations", wireType)
-			}
-			var msglen int
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowProxy
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				msglen |= int(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			if msglen < 0 {
-				return ErrInvalidLengthProxy
-			}
-			postIndex := iNdEx + msglen
-			if postIndex < 0 {
-				return ErrInvalidLengthProxy
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			if m.MaxNumberOfAnnotations == nil {
-				m.MaxNumberOfAnnotations = &types.Int64Value{}
-			}
-			if err := m.MaxNumberOfAnnotations.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
-				return err
-			}
-			iNdEx = postIndex
-		case 6:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field MaxNumberOfMessageEvents", wireType)
-			}
-			var msglen int
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowProxy
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				msglen |= int(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			if msglen < 0 {
-				return ErrInvalidLengthProxy
-			}
-			postIndex := iNdEx + msglen
-			if postIndex < 0 {
-				return ErrInvalidLengthProxy
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			if m.MaxNumberOfMessageEvents == nil {
-				m.MaxNumberOfMessageEvents = &types.Int64Value{}
-			}
-			if err := m.MaxNumberOfMessageEvents.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
-				return err
-			}
-			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipProxy(dAtA[iNdEx:])
diff --git a/mesh/v1alpha1/proxy.proto b/mesh/v1alpha1/proxy.proto
index 9792e6de6f..3f7658d3e2 100644
--- a/mesh/v1alpha1/proxy.proto
+++ b/mesh/v1alpha1/proxy.proto
@@ -124,22 +124,6 @@ message Tracing {
     // the proxy will attempt to read each header for each request and will
     // write all headers.
     repeated TraceContext context = 2;
-
-    // debug enables trace output to stdout
-    // $hide_from_docs
-    bool debug = 3;
-    // The global default max number of attributes per span.
-    // default is 200.
-    // $hide_from_docs
-    google.protobuf.Int64Value max_number_of_attributes = 4;
-    // The global default max number of annotation events per span.
-    // default is 200.
-    // $hide_from_docs
-    google.protobuf.Int64Value max_number_of_annotations = 5;
-    // The global default max number of message events per span.
-    // default is 200.
-    // $hide_from_docs
-    google.protobuf.Int64Value max_number_of_message_events = 6;
   }
 
   // The tracer implementation to be used by Envoy.
diff --git a/python/istio_api/mesh/v1alpha1/proxy_pb2.py b/python/istio_api/mesh/v1alpha1/proxy_pb2.py
index 646706a891..354ff35728 100644
--- a/python/istio_api/mesh/v1alpha1/proxy_pb2.py
+++ b/python/istio_api/mesh/v1alpha1/proxy_pb2.py
@@ -24,7 +24,7 @@
   package='istio.mesh.v1alpha1',
   syntax='proto3',
   serialized_options=_b('Z\032istio.io/api/mesh/v1alpha1'),
-  serialized_pb=_b('\n\x19mesh/v1alpha1/proxy.proto\x12\x13istio.mesh.v1alpha1\x1a\x1egoogle/protobuf/duration.proto\x1a\x1egoogle/protobuf/wrappers.proto\x1a*networking/v1alpha3/destination_rule.proto\"\xa4\r\n\x07Tracing\x12\x35\n\x06zipkin\x18\x01 \x01(\x0b\x32#.istio.mesh.v1alpha1.Tracing.ZipkinH\x00\x12;\n\tlightstep\x18\x02 \x01(\x0b\x32&.istio.mesh.v1alpha1.Tracing.LightstepH\x00\x12\x37\n\x07\x64\x61tadog\x18\x03 \x01(\x0b\x32$.istio.mesh.v1alpha1.Tracing.DatadogH\x00\x12?\n\x0bstackdriver\x18\x04 \x01(\x0b\x32(.istio.mesh.v1alpha1.Tracing.StackdriverH\x00\x12I\n\x11open_census_agent\x18\t \x01(\x0b\x32,.istio.mesh.v1alpha1.Tracing.OpenCensusAgentH\x00\x12\x41\n\x0b\x63ustom_tags\x18\x05 \x03(\x0b\x32,.istio.mesh.v1alpha1.Tracing.CustomTagsEntry\x12\x1b\n\x13max_path_tag_length\x18\x06 \x01(\r\x12\x10\n\x08sampling\x18\x07 \x01(\x01\x12\x42\n\x0ctls_settings\x18\x08 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+  serialized_pb=_b('\n\x19mesh/v1alpha1/proxy.proto\x12\x13istio.mesh.v1alpha1\x1a\x1egoogle/protobuf/duration.proto\x1a\x1egoogle/protobuf/wrappers.proto\x1a*networking/v1alpha3/destination_rule.proto\"\xd3\x0b\n\x07Tracing\x12\x35\n\x06zipkin\x18\x01 \x01(\x0b\x32#.istio.mesh.v1alpha1.Tracing.ZipkinH\x00\x12;\n\tlightstep\x18\x02 \x01(\x0b\x32&.istio.mesh.v1alpha1.Tracing.LightstepH\x00\x12\x37\n\x07\x64\x61tadog\x18\x03 \x01(\x0b\x32$.istio.mesh.v1alpha1.Tracing.DatadogH\x00\x12?\n\x0bstackdriver\x18\x04 \x01(\x0b\x32(.istio.mesh.v1alpha1.Tracing.StackdriverH\x00\x12I\n\x11open_census_agent\x18\t \x01(\x0b\x32,.istio.mesh.v1alpha1.Tracing.OpenCensusAgentH\x00\x12\x41\n\x0b\x63ustom_tags\x18\x05 \x03(\x0b\x32,.istio.mesh.v1alpha1.Tracing.CustomTagsEntry\x12\x1b\n\x13max_path_tag_length\x18\x06 \x01(\r\x12\x10\n\x08sampling\x18\x07 \x01(\x01\x12\x42\n\x0ctls_settings\x18\x08 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   ,
   dependencies=[google_dot_protobuf_dot_duration__pb2.DESCRIPTOR,google_dot_protobuf_dot_wrappers__pb2.DESCRIPTOR,networking_dot_v1alpha3_dot_destination__rule__pb2.DESCRIPTOR,])
 
@@ -49,8 +49,8 @@
   ],
   containing_type=None,
   serialized_options=None,
-  serialized_start=3747,
-  serialized_end=3809,
+  serialized_start=3538,
+  serialized_end=3600,
 )
 _sym_db.RegisterEnumDescriptor(_AUTHENTICATIONPOLICY)
 
@@ -89,8 +89,8 @@
   ],
   containing_type=None,
   serialized_options=None,
-  serialized_start=1319,
-  serialized_end=1420,
+  serialized_start=1110,
+  serialized_end=1211,
 )
 _sym_db.RegisterEnumDescriptor(_TRACING_OPENCENSUSAGENT_TRACECONTEXT)
 
@@ -127,8 +127,8 @@
   ],
   containing_type=None,
   serialized_options=None,
-  serialized_start=2046,
-  serialized_end=2182,
+  serialized_start=1837,
+  serialized_end=1973,
 )
 _sym_db.RegisterEnumDescriptor(_TOPOLOGY_FORWARDCLIENTCERTDETAILS)
 
@@ -149,8 +149,8 @@
   ],
   containing_type=None,
   serialized_options=None,
-  serialized_start=3469,
-  serialized_end=3520,
+  serialized_start=3260,
+  serialized_end=3311,
 )
 _sym_db.RegisterEnumDescriptor(_PROXYCONFIG_INBOUNDINTERCEPTIONMODE)
 
@@ -324,34 +324,6 @@
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
       serialized_options=None, file=DESCRIPTOR),
-    _descriptor.FieldDescriptor(
-      name='debug', full_name='istio.mesh.v1alpha1.Tracing.OpenCensusAgent.debug', index=2,
-      number=3, type=8, cpp_type=7, label=1,
-      has_default_value=False, default_value=False,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      serialized_options=None, file=DESCRIPTOR),
-    _descriptor.FieldDescriptor(
-      name='max_number_of_attributes', full_name='istio.mesh.v1alpha1.Tracing.OpenCensusAgent.max_number_of_attributes', index=3,
-      number=4, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      serialized_options=None, file=DESCRIPTOR),
-    _descriptor.FieldDescriptor(
-      name='max_number_of_annotations', full_name='istio.mesh.v1alpha1.Tracing.OpenCensusAgent.max_number_of_annotations', index=4,
-      number=5, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      serialized_options=None, file=DESCRIPTOR),
-    _descriptor.FieldDescriptor(
-      name='max_number_of_message_events', full_name='istio.mesh.v1alpha1.Tracing.OpenCensusAgent.max_number_of_message_events', index=5,
-      number=6, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      serialized_options=None, file=DESCRIPTOR),
   ],
   extensions=[
   ],
@@ -366,7 +338,7 @@
   oneofs=[
   ],
   serialized_start=998,
-  serialized_end=1420,
+  serialized_end=1211,
 )
 
 _TRACING_CUSTOMTAG = _descriptor.Descriptor(
@@ -412,8 +384,8 @@
       name='type', full_name='istio.mesh.v1alpha1.Tracing.CustomTag.type',
       index=0, containing_type=None, fields=[]),
   ],
-  serialized_start=1423,
-  serialized_end=1626,
+  serialized_start=1214,
+  serialized_end=1417,
 )
 
 _TRACING_LITERAL = _descriptor.Descriptor(
@@ -442,8 +414,8 @@
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=1628,
-  serialized_end=1652,
+  serialized_start=1419,
+  serialized_end=1443,
 )
 
 _TRACING_ENVIRONMENT = _descriptor.Descriptor(
@@ -479,8 +451,8 @@
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=1654,
-  serialized_end=1704,
+  serialized_start=1445,
+  serialized_end=1495,
 )
 
 _TRACING_REQUESTHEADER = _descriptor.Descriptor(
@@ -516,8 +488,8 @@
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=1706,
-  serialized_end=1758,
+  serialized_start=1497,
+  serialized_end=1549,
 )
 
 _TRACING_CUSTOMTAGSENTRY = _descriptor.Descriptor(
@@ -553,8 +525,8 @@
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=1760,
-  serialized_end=1849,
+  serialized_start=1551,
+  serialized_end=1640,
 )
 
 _TRACING = _descriptor.Descriptor(
@@ -643,7 +615,7 @@
       index=0, containing_type=None, fields=[]),
   ],
   serialized_start=159,
-  serialized_end=1859,
+  serialized_end=1650,
 )
 
 
@@ -680,8 +652,8 @@
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=1861,
-  serialized_end=1908,
+  serialized_start=1652,
+  serialized_end=1699,
 )
 
 
@@ -719,8 +691,8 @@
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=1911,
-  serialized_end=2182,
+  serialized_start=1702,
+  serialized_end=1973,
 )
 
 
@@ -757,8 +729,8 @@
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=3415,
-  serialized_end=3467,
+  serialized_start=3206,
+  serialized_end=3258,
 )
 
 _PROXYCONFIG = _descriptor.Descriptor(
@@ -977,8 +949,8 @@
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=2185,
-  serialized_end=3543,
+  serialized_start=1976,
+  serialized_end=3334,
 )
 
 
@@ -1022,8 +994,8 @@
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=3546,
-  serialized_end=3745,
+  serialized_start=3337,
+  serialized_end=3536,
 )
 
 _TRACING_ZIPKIN.containing_type = _TRACING
@@ -1034,9 +1006,6 @@
 _TRACING_STACKDRIVER.fields_by_name['max_number_of_message_events'].message_type = google_dot_protobuf_dot_wrappers__pb2._INT64VALUE
 _TRACING_STACKDRIVER.containing_type = _TRACING
 _TRACING_OPENCENSUSAGENT.fields_by_name['context'].enum_type = _TRACING_OPENCENSUSAGENT_TRACECONTEXT
-_TRACING_OPENCENSUSAGENT.fields_by_name['max_number_of_attributes'].message_type = google_dot_protobuf_dot_wrappers__pb2._INT64VALUE
-_TRACING_OPENCENSUSAGENT.fields_by_name['max_number_of_annotations'].message_type = google_dot_protobuf_dot_wrappers__pb2._INT64VALUE
-_TRACING_OPENCENSUSAGENT.fields_by_name['max_number_of_message_events'].message_type = google_dot_protobuf_dot_wrappers__pb2._INT64VALUE
 _TRACING_OPENCENSUSAGENT.containing_type = _TRACING
 _TRACING_OPENCENSUSAGENT_TRACECONTEXT.containing_type = _TRACING_OPENCENSUSAGENT
 _TRACING_CUSTOMTAG.fields_by_name['literal'].message_type = _TRACING_LITERAL