update the default value of transport.tcpMuxKeepaliveInterval

pkg/config/v1/plugin.go

@@ -17,7 +17,6 @@ package v1
 import (
 	"bytes"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"reflect"
 )
@@ -43,7 +42,7 @@ func (c *TypedClientPluginOptions) UnmarshalJSON(b []byte) error {
 
 	c.Type = typeStruct.Type
 	if c.Type == "" {
-		return errors.New("plugin type is empty")
+		return nil
 	}
 
 	v, ok := clientPluginOptionsTypeMap[typeStruct.Type]