Add consistency level field in collection meta (#13766)

Signed-off-by: Ndragondriver <jiquan.long@zilliz.com>

internal/core/src/pb/common.pb.cc

@@ -169,7 +169,7 @@ static void InitDefaultsscc_info_Status_common_2eproto() {
     {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_Status_common_2eproto}, {}};
 
 static ::PROTOBUF_NAMESPACE_ID::Metadata file_level_metadata_common_2eproto[8];
-static const ::PROTOBUF_NAMESPACE_ID::EnumDescriptor* file_level_enum_descriptors_common_2eproto[6];
+static const ::PROTOBUF_NAMESPACE_ID::EnumDescriptor* file_level_enum_descriptors_common_2eproto[7];
 static constexpr ::PROTOBUF_NAMESPACE_ID::ServiceDescriptor const** file_level_service_descriptors_common_2eproto = nullptr;
 
 const ::PROTOBUF_NAMESPACE_ID::uint32 TableStruct_common_2eproto::offsets[] PROTOBUF_SECTION_VARIABLE(protodesc_cold) = {
@@ -317,8 +317,10 @@ const char descriptor_table_protodef_common_2eproto[] PROTOBUF_SECTION_VARIABLE(
   "\020\267\t\022\017\n\nDataNodeTt\020\270\t*\"\n\007DslType\022\007\n\003Dsl\020\000"
   "\022\016\n\nBoolExprV1\020\001*B\n\017CompactionState\022\021\n\rU"
   "ndefiedState\020\000\022\r\n\tExecuting\020\001\022\r\n\tComplet"
-  "ed\020\002B5Z3github.com/milvus-io/milvus/inte"
-  "rnal/proto/commonpbb\006proto3"
+  "ed\020\002*X\n\020ConsistencyLevel\022\n\n\006Strong\020\000\022\013\n\007"
+  "Session\020\001\022\013\n\007Bounded\020\002\022\016\n\nEventually\020\003\022\016"
+  "\n\nCustomized\020\004B5Z3github.com/milvus-io/m"
+  "ilvus/internal/proto/commonpbb\006proto3"
   ;
 static const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable*const descriptor_table_common_2eproto_deps[1] = {
 };
@@ -335,7 +337,7 @@ static ::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase*const descriptor_table_com
 static ::PROTOBUF_NAMESPACE_ID::internal::once_flag descriptor_table_common_2eproto_once;
 static bool descriptor_table_common_2eproto_initialized = false;
 const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_common_2eproto = {
-  &descriptor_table_common_2eproto_initialized, descriptor_table_protodef_common_2eproto, "common.proto", 2627,
+  &descriptor_table_common_2eproto_initialized, descriptor_table_protodef_common_2eproto, "common.proto", 2717,
   &descriptor_table_common_2eproto_once, descriptor_table_common_2eproto_sccs, descriptor_table_common_2eproto_deps, 8, 0,
   schemas, file_default_instances, TableStruct_common_2eproto::offsets,
   file_level_metadata_common_2eproto, 8, file_level_enum_descriptors_common_2eproto, file_level_service_descriptors_common_2eproto,
@@ -519,6 +521,23 @@ bool CompactionState_IsValid(int value) {
   }
 }
 
+const ::PROTOBUF_NAMESPACE_ID::EnumDescriptor* ConsistencyLevel_descriptor() {
+  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&descriptor_table_common_2eproto);
+  return file_level_enum_descriptors_common_2eproto[6];
+}
+bool ConsistencyLevel_IsValid(int value) {
+  switch (value) {
+    case 0:
+    case 1:
+    case 2:
+    case 3:
+    case 4:
+      return true;
+    default:
+      return false;
+  }
+}
+
 
 // ===================================================================
 

internal/core/src/pb/common.pb.h

@@ -338,6 +338,34 @@ inline bool CompactionState_Parse(
   return ::PROTOBUF_NAMESPACE_ID::internal::ParseNamedEnum<CompactionState>(
     CompactionState_descriptor(), name, value);
 }
+enum ConsistencyLevel : int {
+  Strong = 0,
+  Session = 1,
+  Bounded = 2,
+  Eventually = 3,
+  Customized = 4,
+  ConsistencyLevel_INT_MIN_SENTINEL_DO_NOT_USE_ = std::numeric_limits<::PROTOBUF_NAMESPACE_ID::int32>::min(),
+  ConsistencyLevel_INT_MAX_SENTINEL_DO_NOT_USE_ = std::numeric_limits<::PROTOBUF_NAMESPACE_ID::int32>::max()
+};
+bool ConsistencyLevel_IsValid(int value);
+constexpr ConsistencyLevel ConsistencyLevel_MIN = Strong;
+constexpr ConsistencyLevel ConsistencyLevel_MAX = Customized;
+constexpr int ConsistencyLevel_ARRAYSIZE = ConsistencyLevel_MAX + 1;
+
+const ::PROTOBUF_NAMESPACE_ID::EnumDescriptor* ConsistencyLevel_descriptor();
+template<typename T>
+inline const std::string& ConsistencyLevel_Name(T enum_t_value) {
+  static_assert(::std::is_same<T, ConsistencyLevel>::value ||
+    ::std::is_integral<T>::value,
+    "Incorrect type passed to function ConsistencyLevel_Name.");
+  return ::PROTOBUF_NAMESPACE_ID::internal::NameOfEnum(
+    ConsistencyLevel_descriptor(), enum_t_value);
+}
+inline bool ConsistencyLevel_Parse(
+    const std::string& name, ConsistencyLevel* value) {
+  return ::PROTOBUF_NAMESPACE_ID::internal::ParseNamedEnum<ConsistencyLevel>(
+    ConsistencyLevel_descriptor(), name, value);
+}
 // ===================================================================
 
 class Status :
@@ -2185,6 +2213,11 @@ template <>
 inline const EnumDescriptor* GetEnumDescriptor< ::milvus::proto::common::CompactionState>() {
   return ::milvus::proto::common::CompactionState_descriptor();
 }
+template <> struct is_proto_enum< ::milvus::proto::common::ConsistencyLevel> : ::std::true_type {};
+template <>
+inline const EnumDescriptor* GetEnumDescriptor< ::milvus::proto::common::ConsistencyLevel>() {
+  return ::milvus::proto::common::ConsistencyLevel_descriptor();
+}
 
 PROTOBUF_NAMESPACE_CLOSE
 

internal/core/src/pb/milvus.pb.h

@@ -1057,6 +1057,7 @@ class CreateCollectionRequest :
     kSchemaFieldNumber = 4,
     kBaseFieldNumber = 1,
     kShardsNumFieldNumber = 5,
+    kConsistencyLevelFieldNumber = 6,
   };
   // string db_name = 2;
   void clear_db_name();
@@ -1104,6 +1105,11 @@ class CreateCollectionRequest :
   ::PROTOBUF_NAMESPACE_ID::int32 shards_num() const;
   void set_shards_num(::PROTOBUF_NAMESPACE_ID::int32 value);
 
+  // .milvus.proto.common.ConsistencyLevel consistency_level = 6;
+  void clear_consistency_level();
+  ::milvus::proto::common::ConsistencyLevel consistency_level() const;
+  void set_consistency_level(::milvus::proto::common::ConsistencyLevel value);
+
   // @@protoc_insertion_point(class_scope:milvus.proto.milvus.CreateCollectionRequest)
  private:
   class _Internal;
@@ -1114,6 +1120,7 @@ class CreateCollectionRequest :
   ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr schema_;
   ::milvus::proto::common::MsgBase* base_;
   ::PROTOBUF_NAMESPACE_ID::int32 shards_num_;
+  int consistency_level_;
   mutable ::PROTOBUF_NAMESPACE_ID::internal::CachedSize _cached_size_;
   friend struct ::TableStruct_milvus_2eproto;
 };
@@ -2031,6 +2038,7 @@ class DescribeCollectionResponse :
     kCreatedTimestampFieldNumber = 6,
     kCreatedUtcTimestampFieldNumber = 7,
     kShardsNumFieldNumber = 8,
+    kConsistencyLevelFieldNumber = 11,
   };
   // repeated string virtual_channel_names = 4;
   int virtual_channel_names_size() const;
@@ -2130,6 +2138,11 @@ class DescribeCollectionResponse :
   ::PROTOBUF_NAMESPACE_ID::int32 shards_num() const;
   void set_shards_num(::PROTOBUF_NAMESPACE_ID::int32 value);
 
+  // .milvus.proto.common.ConsistencyLevel consistency_level = 11;
+  void clear_consistency_level();
+  ::milvus::proto::common::ConsistencyLevel consistency_level() const;
+  void set_consistency_level(::milvus::proto::common::ConsistencyLevel value);
+
   // @@protoc_insertion_point(class_scope:milvus.proto.milvus.DescribeCollectionResponse)
  private:
   class _Internal;
@@ -2145,6 +2158,7 @@ class DescribeCollectionResponse :
   ::PROTOBUF_NAMESPACE_ID::uint64 created_timestamp_;
   ::PROTOBUF_NAMESPACE_ID::uint64 created_utc_timestamp_;
   ::PROTOBUF_NAMESPACE_ID::int32 shards_num_;
+  int consistency_level_;
   mutable ::PROTOBUF_NAMESPACE_ID::internal::CachedSize _cached_size_;
   friend struct ::TableStruct_milvus_2eproto;
 };
@@ -13859,6 +13873,20 @@ inline void CreateCollectionRequest::set_shards_num(::PROTOBUF_NAMESPACE_ID::int
   // @@protoc_insertion_point(field_set:milvus.proto.milvus.CreateCollectionRequest.shards_num)
 }
 
+// .milvus.proto.common.ConsistencyLevel consistency_level = 6;
+inline void CreateCollectionRequest::clear_consistency_level() {
+  consistency_level_ = 0;
+}
+inline ::milvus::proto::common::ConsistencyLevel CreateCollectionRequest::consistency_level() const {
+  // @@protoc_insertion_point(field_get:milvus.proto.milvus.CreateCollectionRequest.consistency_level)
+  return static_cast< ::milvus::proto::common::ConsistencyLevel >(consistency_level_);
+}
+inline void CreateCollectionRequest::set_consistency_level(::milvus::proto::common::ConsistencyLevel value) {
+  
+  consistency_level_ = value;
+  // @@protoc_insertion_point(field_set:milvus.proto.milvus.CreateCollectionRequest.consistency_level)
+}
+
 // -------------------------------------------------------------------
 
 // DropCollectionRequest
@@ -14889,6 +14917,20 @@ DescribeCollectionResponse::start_positions() const {
   return start_positions_;
 }
 
+// .milvus.proto.common.ConsistencyLevel consistency_level = 11;
+inline void DescribeCollectionResponse::clear_consistency_level() {
+  consistency_level_ = 0;
+}
+inline ::milvus::proto::common::ConsistencyLevel DescribeCollectionResponse::consistency_level() const {
+  // @@protoc_insertion_point(field_get:milvus.proto.milvus.DescribeCollectionResponse.consistency_level)
+  return static_cast< ::milvus::proto::common::ConsistencyLevel >(consistency_level_);
+}
+inline void DescribeCollectionResponse::set_consistency_level(::milvus::proto::common::ConsistencyLevel value) {
+  
+  consistency_level_ = value;
+  // @@protoc_insertion_point(field_set:milvus.proto.milvus.DescribeCollectionResponse.consistency_level)
+}
+
 // -------------------------------------------------------------------
 
 // LoadCollectionRequest

internal/proto/common.proto

@@ -183,3 +183,11 @@ enum CompactionState {
   Executing = 1;
   Completed = 2;
 }
+
+enum ConsistencyLevel {
+    Strong = 0;
+    Session = 1; // default in PyMilvus
+    Bounded = 2;
+    Eventually = 3;
+    Customized = 4; // Users pass their own `guarantee_timestamp`.
+}

internal/proto/commonpb/common.pb.go

@@ -446,6 +446,40 @@ func (CompactionState) EnumDescriptor() ([]byte, []int) {
 	return fileDescriptor_555bd8c177793206, []int{5}
 }
 
+type ConsistencyLevel int32
+
+const (
+	ConsistencyLevel_Strong     ConsistencyLevel = 0
+	ConsistencyLevel_Session    ConsistencyLevel = 1
+	ConsistencyLevel_Bounded    ConsistencyLevel = 2
+	ConsistencyLevel_Eventually ConsistencyLevel = 3
+	ConsistencyLevel_Customized ConsistencyLevel = 4
+)
+
+var ConsistencyLevel_name = map[int32]string{
+	0: "Strong",
+	1: "Session",
+	2: "Bounded",
+	3: "Eventually",
+	4: "Customized",
+}
+
+var ConsistencyLevel_value = map[string]int32{
+	"Strong":     0,
+	"Session":    1,
+	"Bounded":    2,
+	"Eventually": 3,
+	"Customized": 4,
+}
+
+func (x ConsistencyLevel) String() string {
+	return proto.EnumName(ConsistencyLevel_name, int32(x))
+}
+
+func (ConsistencyLevel) EnumDescriptor() ([]byte, []int) {
+	return fileDescriptor_555bd8c177793206, []int{6}
+}
+
 type Status struct {
 	ErrorCode            ErrorCode `protobuf:"varint,1,opt,name=error_code,json=errorCode,proto3,enum=milvus.proto.common.ErrorCode" json:"error_code,omitempty"`
 	Reason               string    `protobuf:"bytes,2,opt,name=reason,proto3" json:"reason,omitempty"`
@@ -831,6 +865,7 @@ func init() {
 	proto.RegisterEnum("milvus.proto.common.MsgType", MsgType_name, MsgType_value)
 	proto.RegisterEnum("milvus.proto.common.DslType", DslType_name, DslType_value)
 	proto.RegisterEnum("milvus.proto.common.CompactionState", CompactionState_name, CompactionState_value)
+	proto.RegisterEnum("milvus.proto.common.ConsistencyLevel", ConsistencyLevel_name, ConsistencyLevel_value)
 	proto.RegisterType((*Status)(nil), "milvus.proto.common.Status")
 	proto.RegisterType((*KeyValuePair)(nil), "milvus.proto.common.KeyValuePair")
 	proto.RegisterType((*KeyDataPair)(nil), "milvus.proto.common.KeyDataPair")
@@ -844,96 +879,99 @@ func init() {
 func init() { proto.RegisterFile("common.proto", fileDescriptor_555bd8c177793206) }
 
 var fileDescriptor_555bd8c177793206 = []byte{
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 }

internal/proto/etcd_meta.proto

@@ -41,6 +41,7 @@ message CollectionInfo {
   repeated uint64 partition_created_timestamps = 9;
   int32 shards_num = 10;
   repeated common.KeyDataPair start_positions = 11;
+  common.ConsistencyLevel consistency_level = 12;
 }
 
 message SegmentIndexInfo {

internal/proto/etcdpb/etcd_meta.pb.go

@@ -254,6 +254,7 @@ type CollectionInfo struct {
 	PartitionCreatedTimestamps []uint64                   `protobuf:"varint,9,rep,packed,name=partition_created_timestamps,json=partitionCreatedTimestamps,proto3" json:"partition_created_timestamps,omitempty"`
 	ShardsNum                  int32                      `protobuf:"varint,10,opt,name=shards_num,json=shardsNum,proto3" json:"shards_num,omitempty"`
 	StartPositions             []*commonpb.KeyDataPair    `protobuf:"bytes,11,rep,name=start_positions,json=startPositions,proto3" json:"start_positions,omitempty"`
+	ConsistencyLevel           commonpb.ConsistencyLevel  `protobuf:"varint,12,opt,name=consistency_level,json=consistencyLevel,proto3,enum=milvus.proto.common.ConsistencyLevel" json:"consistency_level,omitempty"`
 	XXX_NoUnkeyedLiteral       struct{}                   `json:"-"`
 	XXX_unrecognized           []byte                     `json:"-"`
 	XXX_sizecache              int32                      `json:"-"`
@@ -361,6 +362,13 @@ func (m *CollectionInfo) GetStartPositions() []*commonpb.KeyDataPair {
 	return nil
 }
 
+func (m *CollectionInfo) GetConsistencyLevel() commonpb.ConsistencyLevel {
+	if m != nil {
+		return m.ConsistencyLevel
+	}
+	return commonpb.ConsistencyLevel_Strong
+}
+
 type SegmentIndexInfo struct {
 	CollectionID         int64    `protobuf:"varint,1,opt,name=collectionID,proto3" json:"collectionID,omitempty"`
 	PartitionID          int64    `protobuf:"varint,2,opt,name=partitionID,proto3" json:"partitionID,omitempty"`
@@ -540,52 +548,54 @@ func init() {
 func init() { proto.RegisterFile("etcd_meta.proto", fileDescriptor_975d306d62b73e88) }
 
 var fileDescriptor_975d306d62b73e88 = []byte{
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+	0xad, 0xd2, 0x02, 0x1f, 0xb1, 0xa0, 0x41, 0xe8, 0xc5, 0xd3, 0x5d, 0x51, 0xb4, 0xc3, 0xae, 0xd7,
+	0xd5, 0x3f, 0x35, 0xc5, 0xec, 0x24, 0xdb, 0x41, 0xa2, 0xbf, 0x3d, 0x38, 0x79, 0x87, 0x0f, 0x12,
+	0x95, 0x59, 0x2b, 0x39, 0x82, 0x20, 0x5b, 0x8b, 0xb2, 0x13, 0xe3, 0x16, 0x46, 0x42, 0x98, 0x6c,
+	0x48, 0xa4, 0xd5, 0xf5, 0x26, 0x44, 0xce, 0xc1, 0xd7, 0xed, 0xe4, 0xc4, 0xea, 0x6e, 0xc0, 0xd6,
+	0x80, 0x73, 0x4b, 0xf3, 0xe4, 0xee, 0x0f, 0xc7, 0xba, 0xc5, 0x86, 0x9b, 0x6e, 0x39, 0xdc, 0x76,
+	0x2e, 0x85, 0xf1, 0xbc, 0x16, 0xb6, 0x67, 0xe4, 0x32, 0x6d, 0x48, 0x5e, 0x42, 0x80, 0x8a, 0xcf,
+	0x0b, 0x74, 0xca, 0xa3, 0xe3, 0xd0, 0x8b, 0x5f, 0xb0, 0x89, 0xc3, 0xec, 0x61, 0xd1, 0x3f, 0xde,
+	0xa6, 0xd5, 0xf6, 0xfe, 0x8b, 0xfd, 0xdf, 0x56, 0xfb, 0x14, 0xa0, 0x27, 0xa0, 0x33, 0xda, 0x06,
+	0x42, 0x5e, 0x6d, 0xd8, 0x2c, 0x35, 0xfc, 0xa1, 0xb3, 0xd9, 0x51, 0x8f, 0xde, 0xf1, 0x07, 0xfd,
+	0xc4, 0xb1, 0xa3, 0xa7, 0x8e, 0xfd, 0xe1, 0xcd, 0x6f, 0x5f, 0x3d, 0x08, 0xb3, 0xa8, 0xe7, 0x8d,
+	0x16, 0x2e, 0xdd, 0x19, 0x5f, 0x8a, 0xb2, 0xfd, 0x75, 0x29, 0x94, 0xc1, 0x4a, 0xf1, 0xe2, 0xd2,
+	0x5e, 0x76, 0xd9, 0x38, 0x72, 0x39, 0x9f, 0x8f, 0x6c, 0xf4, 0xe6, 0xbf, 0x00, 0x00, 0x00, 0xff,
+	0xff, 0x9f, 0xd3, 0xc4, 0x4c, 0xc9, 0x06, 0x00, 0x00,
 }

internal/proto/milvus.proto

@@ -93,6 +93,8 @@ message CreateCollectionRequest {
   // Once set, no modification is allowed (Optional)
   // https://github.com/milvus-io/milvus/issues/6690
   int32 shards_num = 5;
+  // The consistency level that the collection used, modification is not supported now.
+  common.ConsistencyLevel consistency_level = 6;
 }
 
 /**
@@ -172,6 +174,8 @@ message DescribeCollectionResponse {
   repeated string aliases = 9;
   // The message ID/posititon when collection is created
   repeated common.KeyDataPair start_positions = 10;
+  // The consistency level that the collection used, modification is not supported now.
+  common.ConsistencyLevel consistency_level = 11;
 }
 
 /**

internal/proxy/impl.go

@@ -143,6 +143,7 @@ func (node *Proxy) ReleaseDQLMessageStream(ctx context.Context, request *proxypb
 	}, nil
 }
 
+// TODO(dragondriver): add more detailed ut for ConsistencyLevel, should we support multiple consistency level in Proxy?
 // CreateCollection create a collection by the schema.
 func (node *Proxy) CreateCollection(ctx context.Context, request *milvuspb.CreateCollectionRequest) (*commonpb.Status, error) {
 	if !node.checkHealthy() {
@@ -171,7 +172,8 @@ func (node *Proxy) CreateCollection(ctx context.Context, request *milvuspb.Creat
 		zap.String("db", request.DbName),
 		zap.String("collection", request.CollectionName),
 		zap.Int("len(schema)", lenOfSchema),
-		zap.Int32("shards_num", request.ShardsNum))
+		zap.Int32("shards_num", request.ShardsNum),
+		zap.String("consistency_level", request.ConsistencyLevel.String()))
 
 	if err := node.sched.ddQueue.Enqueue(cct); err != nil {
 		log.Warn(
@@ -182,7 +184,8 @@ func (node *Proxy) CreateCollection(ctx context.Context, request *milvuspb.Creat
 			zap.String("db", request.DbName),
 			zap.String("collection", request.CollectionName),
 			zap.Int("len(schema)", lenOfSchema),
-			zap.Int32("shards_num", request.ShardsNum))
+			zap.Int32("shards_num", request.ShardsNum),
+			zap.String("consistency_level", request.ConsistencyLevel.String()))
 
 		return &commonpb.Status{
 			ErrorCode: commonpb.ErrorCode_UnexpectedError,
@@ -201,7 +204,8 @@ func (node *Proxy) CreateCollection(ctx context.Context, request *milvuspb.Creat
 		zap.String("db", request.DbName),
 		zap.String("collection", request.CollectionName),
 		zap.Int("len(schema)", lenOfSchema),
-		zap.Int32("shards_num", request.ShardsNum))
+		zap.Int32("shards_num", request.ShardsNum),
+		zap.String("consistency_level", request.ConsistencyLevel.String()))
 
 	if err := cct.WaitToFinish(); err != nil {
 		log.Warn(
@@ -215,7 +219,8 @@ func (node *Proxy) CreateCollection(ctx context.Context, request *milvuspb.Creat
 			zap.String("db", request.DbName),
 			zap.String("collection", request.CollectionName),
 			zap.Int("len(schema)", lenOfSchema),
-			zap.Int32("shards_num", request.ShardsNum))
+			zap.Int32("shards_num", request.ShardsNum),
+			zap.String("consistency_level", request.ConsistencyLevel.String()))
 
 		return &commonpb.Status{
 			ErrorCode: commonpb.ErrorCode_UnexpectedError,
@@ -233,7 +238,8 @@ func (node *Proxy) CreateCollection(ctx context.Context, request *milvuspb.Creat
 		zap.String("db", request.DbName),
 		zap.String("collection", request.CollectionName),
 		zap.Int("len(schema)", lenOfSchema),
-		zap.Int32("shards_num", request.ShardsNum))
+		zap.Int32("shards_num", request.ShardsNum),
+		zap.String("consistency_level", request.ConsistencyLevel.String()))
 
 	return cct.result, nil
 }
@@ -2136,7 +2142,12 @@ func (node *Proxy) Search(ctx context.Context, request *milvuspb.SearchRequest)
 		qc:        node.queryCoord,
 	}
 
-	log.Debug("Search received",
+	method := "Search"
+	travelTs := request.TravelTimestamp
+	guaranteeTs := request.GuaranteeTimestamp
+
+	log.Debug(
+		rpcReceived(method),
 		zap.String("traceID", traceID),
 		zap.String("role", typeutil.ProxyRole),
 		zap.String("db", request.DbName),
@@ -2144,11 +2155,14 @@ func (node *Proxy) Search(ctx context.Context, request *milvuspb.SearchRequest)
 		zap.Any("partitions", request.PartitionNames),
 		zap.Any("dsl", request.Dsl),
 		zap.Any("len(PlaceholderGroup)", len(request.PlaceholderGroup)),
-		zap.Any("OutputFields", request.OutputFields))
+		zap.Any("OutputFields", request.OutputFields),
+		zap.Any("search_params", request.SearchParams),
+		zap.Uint64("travel_timestamp", travelTs),
+		zap.Uint64("guarantee_timestamp", guaranteeTs))
 
-	err := node.sched.dqQueue.Enqueue(qt)
-	if err != nil {
-		log.Debug("Search failed to enqueue",
+	if err := node.sched.dqQueue.Enqueue(qt); err != nil {
+		log.Warn(
+			rpcFailedToEnqueue(method),
 			zap.Error(err),
 			zap.String("traceID", traceID),
 			zap.String("role", typeutil.ProxyRole),
@@ -2158,7 +2172,9 @@ func (node *Proxy) Search(ctx context.Context, request *milvuspb.SearchRequest)
 			zap.Any("dsl", request.Dsl),
 			zap.Any("len(PlaceholderGroup)", len(request.PlaceholderGroup)),
 			zap.Any("OutputFields", request.OutputFields),
-		)
+			zap.Any("search_params", request.SearchParams),
+			zap.Uint64("travel_timestamp", travelTs),
+			zap.Uint64("guarantee_timestamp", guaranteeTs))
 
 		return &milvuspb.SearchResults{
 			Status: &commonpb.Status{
@@ -2168,7 +2184,8 @@ func (node *Proxy) Search(ctx context.Context, request *milvuspb.SearchRequest)
 		}, nil
 	}
 
-	log.Debug("Search enqueued",
+	log.Debug(
+		rpcEnqueued(method),
 		zap.String("traceID", traceID),
 		zap.String("role", typeutil.ProxyRole),
 		zap.Int64("msgID", qt.ID()),
@@ -2178,12 +2195,14 @@ func (node *Proxy) Search(ctx context.Context, request *milvuspb.SearchRequest)
 		zap.Any("partitions", request.PartitionNames),
 		zap.Any("dsl", request.Dsl),
 		zap.Any("len(PlaceholderGroup)", len(request.PlaceholderGroup)),
-		zap.Any("OutputFields", request.OutputFields))
-
-	err = qt.WaitToFinish()
+		zap.Any("OutputFields", request.OutputFields),
+		zap.Any("search_params", request.SearchParams),
+		zap.Uint64("travel_timestamp", travelTs),
+		zap.Uint64("guarantee_timestamp", guaranteeTs))
 
-	if err != nil {
-		log.Debug("Search failed to WaitToFinish",
+	if err := qt.WaitToFinish(); err != nil {
+		log.Warn(
+			rpcFailedToWaitToFinish(method),
 			zap.Error(err),
 			zap.String("traceID", traceID),
 			zap.String("role", typeutil.ProxyRole),
@@ -2193,7 +2212,10 @@ func (node *Proxy) Search(ctx context.Context, request *milvuspb.SearchRequest)
 			zap.Any("partitions", request.PartitionNames),
 			zap.Any("dsl", request.Dsl),
 			zap.Any("len(PlaceholderGroup)", len(request.PlaceholderGroup)),
-			zap.Any("OutputFields", request.OutputFields))
+			zap.Any("OutputFields", request.OutputFields),
+			zap.Any("search_params", request.SearchParams),
+			zap.Uint64("travel_timestamp", travelTs),
+			zap.Uint64("guarantee_timestamp", guaranteeTs))
 
 		return &milvuspb.SearchResults{
 			Status: &commonpb.Status{
@@ -2203,7 +2225,8 @@ func (node *Proxy) Search(ctx context.Context, request *milvuspb.SearchRequest)
 		}, nil
 	}
 
-	log.Debug("Search Done",
+	log.Debug(
+		rpcDone(method),
 		zap.String("traceID", traceID),
 		zap.String("role", typeutil.ProxyRole),
 		zap.Int64("msgID", qt.ID()),
@@ -2212,7 +2235,10 @@ func (node *Proxy) Search(ctx context.Context, request *milvuspb.SearchRequest)
 		zap.Any("partitions", request.PartitionNames),
 		zap.Any("dsl", request.Dsl),
 		zap.Any("len(PlaceholderGroup)", len(request.PlaceholderGroup)),
-		zap.Any("OutputFields", request.OutputFields))
+		zap.Any("OutputFields", request.OutputFields),
+		zap.Any("search_params", request.SearchParams),
+		zap.Uint64("travel_timestamp", travelTs),
+		zap.Uint64("guarantee_timestamp", guaranteeTs))
 
 	return qt.result, nil
 }

internal/proxy/task.go

@@ -2570,6 +2570,7 @@ func (dct *describeCollectionTask) Execute(ctx context.Context) error {
 		dct.result.CreatedTimestamp = result.CreatedTimestamp
 		dct.result.CreatedUtcTimestamp = result.CreatedUtcTimestamp
 		dct.result.ShardsNum = result.ShardsNum
+		dct.result.ConsistencyLevel = result.ConsistencyLevel
 		for _, field := range result.Schema.Fields {
 			if field.FieldID >= common.StartOfUserFieldID {
 				dct.result.Schema.Fields = append(dct.result.Schema.Fields, &schemapb.FieldSchema{

internal/rootcoord/task.go

@@ -102,7 +102,8 @@ func (t *CreateCollectionReqTask) Execute(ctx context.Context) error {
 		t.Req.ShardsNum = common.DefaultShardsNum
 	}
 	log.Debug("CreateCollectionReqTask Execute", zap.Any("CollectionName", t.Req.CollectionName),
-		zap.Any("ShardsNum", t.Req.ShardsNum))
+		zap.Int32("ShardsNum", t.Req.ShardsNum),
+		zap.String("ConsistencyLevel", t.Req.ConsistencyLevel.String()))
 
 	for idx, field := range schema.Fields {
 		field.FieldID = int64(idx + StartOfUserFieldID)
@@ -161,6 +162,7 @@ func (t *CreateCollectionReqTask) Execute(ctx context.Context) error {
 		PhysicalChannelNames:       chanNames,
 		ShardsNum:                  t.Req.ShardsNum,
 		PartitionCreatedTimestamps: []uint64{0},
+		ConsistencyLevel:           t.Req.ConsistencyLevel,
 	}
 
 	idxInfo := make([]*etcdpb.IndexInfo, 0, 16)
@@ -430,6 +432,7 @@ func (t *DescribeCollectionReqTask) Execute(ctx context.Context) error {
 		collInfo.ShardsNum = int32(len(collInfo.VirtualChannelNames))
 	}
 	t.Rsp.ShardsNum = collInfo.ShardsNum
+	t.Rsp.ConsistencyLevel = collInfo.ConsistencyLevel
 
 	t.Rsp.CreatedTimestamp = collInfo.CreateTime
 	createdPhysicalTime, _ := tsoutil.ParseHybridTs(collInfo.CreateTime)

tests/python_client/testcases/test_delete.py

@@ -396,6 +396,7 @@ class TestDeleteOperation(TestcaseBase):
         collection_w.query(expr=f'{ct.default_int64_field_name} in {[0, tmp_nb]}',
                            check_task=CheckTasks.check_query_empty)
 
+    @pytest.mark.skip("enable this later using session/strong consistency")
     @pytest.mark.tags(CaseLabel.L1)
     def test_delete_search(self):
         """
@@ -420,6 +421,8 @@ class TestDeleteOperation(TestcaseBase):
         # assert search result is not equal to entity
         log.debug(f"Second search result ids: {search_res_2[0].ids}")
         inter = set(ids[:ct.default_nb // 2]).intersection(set(search_res_2[0].ids))
+        # Using bounded staleness, we could still search the "deleted" entities,
+        # since the search requests arrived query nodes earlier than query nodes consume the delete requests.
         assert len(inter) == 0
 
     @pytest.mark.tags(CaseLabel.L1)

tests/python_client/testcases/test_search_20.py

@@ -502,6 +502,7 @@ class TestCollectionSearchInvalid(TestcaseBase):
                             check_items={"err_code": 1,
                                          "err_msg": "partition has been released"})
 
+    @pytest.mark.skip("enable this later using session/strong consistency")
     @pytest.mark.tags(CaseLabel.L1)
     def test_search_with_empty_collection(self):
         """
@@ -535,6 +536,8 @@ class TestCollectionSearchInvalid(TestcaseBase):
         # 4. search with data inserted but not load again
         data = cf.gen_default_dataframe_data(nb=2000)
         insert_res = collection_w.insert(data)[0]
+        # Using bounded staleness, maybe we cannot search the "inserted" requests,
+        # since the search requests arrived query nodes earlier than query nodes consume the insert requests.
         collection_w.search(vectors[:default_nq], default_search_field, default_search_params,
                             default_limit, default_search_exp,
                             guarantee_timestamp=insert_res.timestamp,
@@ -1223,6 +1226,7 @@ class TestCollectionSearch(TestcaseBase):
                                          "limit": default_limit,
                                          "_async": _async})
 
+    @pytest.mark.skip("enable this later using session/strong consistency")
     @pytest.mark.tags(CaseLabel.L1)
     def test_search_new_data(self, nq, dim, auto_id, _async):
         """
@@ -1258,6 +1262,8 @@ class TestCollectionSearch(TestcaseBase):
                                                              insert_offset=nb_old)
         insert_ids.extend(insert_ids_new)
         # 4. search for new data without load
+        # Using bounded staleness, maybe we could not search the "inserted" entities,
+        # since the search requests arrived query nodes earlier than query nodes consume the insert requests.
         collection_w.search(vectors[:nq], default_search_field,
                             default_search_params, limit,
                             default_search_exp, _async=_async,