Adding error message on connection limit met

pkg/api/quota/conn_limit.go

@@ -61,6 +61,8 @@ func (c *connLimit) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 	if c.TestAndAdd(longIP) {
 		defer c.Remove(longIP)
 		c.handler.ServeHTTP(w, req)
+	} else {
+		writeErrorResponse(w, req, ConnectionLimitExceeded, req.RequestURI)
 	}
 }
 

pkg/api/quota/errors.go

@@ -47,6 +47,7 @@ const (
 	BandWidthQuotaExceeded
 	BandWidthInsufficientToProceed
 	SlowDown
+	ConnectionLimitExceeded
 )
 
 // Golang http doesn't implement these
@@ -89,6 +90,11 @@ var errorCodeResponse = map[int]Error{
 		Description:    "Reduce your request rate.",
 		HTTPStatusCode: StatusTooManyRequests,
 	},
+	ConnectionLimitExceeded: {
+		Code:           "ConnectionLimit",
+		Description:    "Connection Limit Met",
+		HTTPStatusCode: StatusTooManyRequests,
+	},
 }
 
 // Write error response headers