enhance: access log support print with consistency level (#33503)

relate: https://github.com/milvus-io/milvus/issues/33563

Signed-off-by: aoiasd <zhicheng.yue@zilliz.com>

internal/proxy/accesslog/info/grpc_info.go

@@ -262,3 +262,11 @@ func (i *GrpcAccessInfo) OutputFields() string {
 	}
 	return Unknown
 }
+
+func (i *GrpcAccessInfo) ConsistencyLevel() string {
+	level, ok := requestutil.GetConsistencyLevelFromRequst(i.req)
+	if ok {
+		return level.String()
+	}
+	return Unknown
+}

internal/proxy/accesslog/info/grpc_info_test.go

@@ -190,6 +190,17 @@ func (s *GrpcAccessInfoSuite) TestOutputFields() {
 	s.Equal(fmt.Sprint(fields), result[0])
 }
 
+func (s *GrpcAccessInfoSuite) TestConsistencyLevel() {
+	result := Get(s.info, "$consistency_level")
+	s.Equal(Unknown, result[0])
+
+	s.info.req = &milvuspb.QueryRequest{
+		ConsistencyLevel: commonpb.ConsistencyLevel_Bounded,
+	}
+	result = Get(s.info, "$consistency_level")
+	s.Equal(commonpb.ConsistencyLevel_Bounded.String(), result[0])
+}
+
 func (s *GrpcAccessInfoSuite) TestClusterPrefix() {
 	cluster := "instance-test"
 	paramtable.Init()

internal/proxy/accesslog/info/info.go

@@ -26,25 +26,26 @@ type getMetricFunc func(i AccessInfo) string
 
 // supported metrics
 var MetricFuncMap = map[string]getMetricFunc{
-	"$method_name":     getMethodName,
-	"$method_status":   getMethodStatus,
-	"$trace_id":        getTraceID,
-	"$user_addr":       getAddr,
-	"$user_name":       getUserName,
-	"$response_size":   getResponseSize,
-	"$error_code":      getErrorCode,
-	"$error_msg":       getErrorMsg,
-	"$database_name":   getDbName,
-	"$collection_name": getCollectionName,
-	"$partition_name":  getPartitionName,
-	"$time_cost":       getTimeCost,
-	"$time_now":        getTimeNow,
-	"$time_start":      getTimeStart,
-	"$time_end":        getTimeEnd,
-	"$method_expr":     getExpr,
-	"$output_fields":   getOutputFields,
-	"$sdk_version":     getSdkVersion,
-	"$cluster_prefix":  getClusterPrefix,
+	"$method_name":       getMethodName,
+	"$method_status":     getMethodStatus,
+	"$trace_id":          getTraceID,
+	"$user_addr":         getAddr,
+	"$user_name":         getUserName,
+	"$response_size":     getResponseSize,
+	"$error_code":        getErrorCode,
+	"$error_msg":         getErrorMsg,
+	"$database_name":     getDbName,
+	"$collection_name":   getCollectionName,
+	"$partition_name":    getPartitionName,
+	"$time_cost":         getTimeCost,
+	"$time_now":          getTimeNow,
+	"$time_start":        getTimeStart,
+	"$time_end":          getTimeEnd,
+	"$method_expr":       getExpr,
+	"$output_fields":     getOutputFields,
+	"$sdk_version":       getSdkVersion,
+	"$cluster_prefix":    getClusterPrefix,
+	"$consistency_level": getConsistencyLevel,
 }
 
 type AccessInfo interface {
@@ -66,6 +67,7 @@ type AccessInfo interface {
 	Expression() string
 	OutputFields() string
 	SdkVersion() string
+	ConsistencyLevel() string
 }
 
 func Get(i AccessInfo, keys ...string) []any {
@@ -153,6 +155,10 @@ func getOutputFields(i AccessInfo) string {
 	return i.OutputFields()
 }
 
+func getConsistencyLevel(i AccessInfo) string {
+	return i.ConsistencyLevel()
+}
+
 func getClusterPrefix(i AccessInfo) string {
 	return ClusterPrefix.Load()
 }

internal/proxy/accesslog/info/restful_info.go

@@ -19,7 +19,6 @@ package info
 import (
 	"fmt"
 	"net/http"
-	"sync"
 	"time"
 
 	"github.com/gin-gonic/gin"
@@ -35,10 +34,9 @@ const (
 )
 
 type RestfulInfo struct {
-	params      *gin.LogFormatterParams
-	start       time.Time
-	req         interface{}
-	reqInitOnce sync.Once
+	params *gin.LogFormatterParams
+	start  time.Time
+	req    interface{}
 }
 
 func NewRestfulInfo() *RestfulInfo {
@@ -187,3 +185,11 @@ func (i *RestfulInfo) OutputFields() string {
 	}
 	return Unknown
 }
+
+func (i *RestfulInfo) ConsistencyLevel() string {
+	level, ok := requestutil.GetConsistencyLevelFromRequst(i.req)
+	if ok {
+		return level.String()
+	}
+	return Unknown
+}

internal/proxy/accesslog/info/restful_info_test.go

@@ -25,6 +25,7 @@ import (
 	"github.com/gin-gonic/gin"
 	"github.com/stretchr/testify/suite"
 
+	"github.com/milvus-io/milvus-proto/go-api/v2/commonpb"
 	"github.com/milvus-io/milvus-proto/go-api/v2/milvuspb"
 	"github.com/milvus-io/milvus/pkg/util/merr"
 	"github.com/milvus-io/milvus/pkg/util/paramtable"
@@ -178,6 +179,18 @@ func (s *RestfulAccessInfoSuite) TestOutputFields() {
 	s.Equal(fmt.Sprint(fields), result[0])
 }
 
+func (s *RestfulAccessInfoSuite) TestConsistencyLevel() {
+	result := Get(s.info, "$consistency_level")
+	s.Equal(Unknown, result[0])
+
+	s.info.params.Keys[ContextRequest] = &milvuspb.QueryRequest{
+		ConsistencyLevel: commonpb.ConsistencyLevel_Bounded,
+	}
+	s.info.InitReq()
+	result = Get(s.info, "$consistency_level")
+	s.Equal(commonpb.ConsistencyLevel_Bounded.String(), result[0])
+}
+
 func (s *RestfulAccessInfoSuite) TestClusterPrefix() {
 	cluster := "instance-test"
 	paramtable.Init()

pkg/util/requestutil/getter.go

@@ -156,6 +156,18 @@ func GetStatusFromResponse(resp interface{}) (*commonpb.Status, bool) {
 	return getter.GetStatus(), true
 }
 
+type ConsistencyLevelGetter interface {
+	GetConsistencyLevel() commonpb.ConsistencyLevel
+}
+
+func GetConsistencyLevelFromRequst(req interface{}) (commonpb.ConsistencyLevel, bool) {
+	getter, ok := req.(ConsistencyLevelGetter)
+	if !ok {
+		return 0, false
+	}
+	return getter.GetConsistencyLevel(), true
+}
+
 var TraceLogBaseInfoFuncMap = map[string]func(interface{}) (any, bool){
 	"collection_name": GetCollectionNameFromRequest,
 	"db_name":         GetDbNameFromRequest,