Make connection limit configurable

main.go

@@ -45,6 +45,11 @@ var flags = []cli.Flag{
 			Usage: "ADDRESS:PORT for management console access",
 		},
 	*/
+	cli.IntFlag{
+		Name:  "conn-limit",
+		Value: 16,
+		Usage: "Set per IP connection limit quota for server: [DEFAULT: 16]",
+	},
 	cli.StringFlag{
 		Name:  "cert",
 		Hide:  true,
@@ -79,10 +84,11 @@ func getAPIServerConfig(c *cli.Context) httpserver.Config {
 	}
 	tls := (certFile != "" && keyFile != "")
 	return httpserver.Config{
-		Address:  c.GlobalString("address"),
-		TLS:      tls,
-		CertFile: certFile,
-		KeyFile:  keyFile,
+		Address:         c.GlobalString("address"),
+		TLS:             tls,
+		CertFile:        certFile,
+		KeyFile:         keyFile,
+		ConnectionLimit: c.GlobalInt("conn-limit"),
 	}
 }
 

pkg/api/api_router.go

@@ -25,16 +25,31 @@ import (
 	"github.com/minio/minio/pkg/storage/drivers"
 )
 
-// private use
 type minioAPI struct {
 	driver drivers.Driver
 }
 
+// Config api configurable parameters
+type Config struct {
+	ConnectionLimit int
+	driver          drivers.Driver
+}
+
+// GetDriver - get a an existing set driver
+func (c Config) GetDriver() drivers.Driver {
+	return c.driver
+}
+
+// SetDriver - set a new driver
+func (c *Config) SetDriver(driver drivers.Driver) {
+	c.driver = driver
+}
+
 // HTTPHandler - http wrapper handler
-func HTTPHandler(driver drivers.Driver) http.Handler {
+func HTTPHandler(config Config) http.Handler {
 	var mux *router.Router
 	var api = minioAPI{}
-	api.driver = driver
+	api.driver = config.GetDriver()
 
 	mux = router.NewRouter()
 	mux.HandleFunc("/", api.listBucketsHandler).Methods("GET")
@@ -50,15 +65,15 @@ func HTTPHandler(driver drivers.Driver) http.Handler {
 	mux.HandleFunc("/{bucket}/{object:.*}", api.getObjectHandler).Methods("GET")
 	mux.HandleFunc("/{bucket}/{object:.*}", api.putObjectHandler).Methods("PUT")
 
-	h := validContentTypeHandler(mux)
-	h = timeValidityHandler(h)
-	h = ignoreResourcesHandler(h)
-	h = validateAuthHeaderHandler(h)
+	handler := validContentTypeHandler(mux)
+	handler = timeValidityHandler(handler)
+	handler = ignoreResourcesHandler(handler)
+	handler = validateAuthHeaderHandler(handler)
 	//	h = quota.BandwidthCap(h, 25*1024*1024, time.Duration(30*time.Minute))
 	//	h = quota.BandwidthCap(h, 100*1024*1024, time.Duration(24*time.Hour))
 	//	h = quota.RequestLimit(h, 100, time.Duration(30*time.Minute))
 	//	h = quota.RequestLimit(h, 1000, time.Duration(24*time.Hour))
-	h = quota.ConnectionLimit(h, 4)
-	h = logging.LogHandler(h)
-	return h
+	handler = quota.ConnectionLimit(handler, config.ConnectionLimit)
+	handler = logging.LogHandler(handler)
+	return handler
 }

pkg/api/api_test.go

@@ -123,6 +123,12 @@ func setDummyAuthHeader(req *http.Request) {
 	req.Header.Set("Date", time.Now().UTC().Format(http.TimeFormat))
 }
 
+func setConfig(driver drivers.Driver) Config {
+	conf := Config{ConnectionLimit: 16}
+	conf.SetDriver(driver)
+	return conf
+}
+
 func (s *MySuite) TestNonExistantBucket(c *C) {
 	switch driver := s.Driver.(type) {
 	case *mocks.Driver:
@@ -131,7 +137,7 @@ func (s *MySuite) TestNonExistantBucket(c *C) {
 		}
 	}
 	driver := s.Driver
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -169,7 +175,7 @@ func (s *MySuite) TestEmptyObject(c *C) {
 	typedDriver.On("GetObjectMetadata", "bucket", "object").Return(metadata, nil).Once()
 	typedDriver.On("GetObject", mock.Anything, "bucket", "object").Return(int64(0), nil).Once()
 	typedDriver.On("GetObjectMetadata", "bucket", "object").Return(metadata, nil).Once()
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -212,7 +218,7 @@ func (s *MySuite) TestBucket(c *C) {
 	typedDriver.On("CreateBucket", "bucket", "private").Return(nil).Once()
 	typedDriver.On("GetBucketMetadata", "bucket").Return(metadata, nil).Once()
 
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -252,7 +258,7 @@ func (s *MySuite) TestObject(c *C) {
 	typedDriver.SetGetObjectWriter("bucket", "object", []byte("hello world"))
 	typedDriver.On("GetObject", mock.Anything, "bucket", "object").Return(int64(0), nil).Once()
 
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -311,7 +317,7 @@ func (s *MySuite) TestMultipleObjects(c *C) {
 		Md5:         "4e74ad3b92e2843e208a13ae1cf0d52c",
 		Size:        11,
 	}
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -441,7 +447,7 @@ func (s *MySuite) TestNotImplemented(c *C) {
 		}
 	}
 	driver := s.Driver
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -466,7 +472,7 @@ func (s *MySuite) TestHeader(c *C) {
 	driver := s.Driver
 	typedDriver := s.MockDriver
 	typedDriver.AssertExpectations(c)
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -535,7 +541,7 @@ func (s *MySuite) TestPutBucket(c *C) {
 	driver := s.Driver
 	typedDriver := s.MockDriver
 
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -572,7 +578,7 @@ func (s *MySuite) TestPutObject(c *C) {
 	}
 	driver := s.Driver
 	typedDriver := s.MockDriver
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -661,7 +667,7 @@ func (s *MySuite) TestListBuckets(c *C) {
 	}
 	driver := s.Driver
 	typedDriver := s.MockDriver
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -754,7 +760,7 @@ func (s *MySuite) TestNotBeAbleToCreateObjectInNonexistantBucket(c *C) {
 	}
 	driver := s.Driver
 	typedDriver := s.MockDriver
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -788,7 +794,7 @@ func (s *MySuite) TestHeadOnObject(c *C) {
 	}
 	driver := s.Driver
 	typedDriver := s.MockDriver
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -842,7 +848,7 @@ func (s *MySuite) TestHeadOnBucket(c *C) {
 	}
 	driver := s.Driver
 	typedDriver := s.MockDriver
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -876,7 +882,7 @@ func (s *MySuite) TestDateFormat(c *C) {
 	}
 	driver := s.Driver
 	typedDriver := s.MockDriver
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -924,7 +930,7 @@ func (s *MySuite) TestXMLNameNotInBucketListJson(c *C) {
 	driver := s.Driver
 	typedDriver := s.MockDriver
 
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -957,7 +963,7 @@ func (s *MySuite) TestXMLNameNotInObjectListJson(c *C) {
 	}
 	driver := s.Driver
 	typedDriver := s.MockDriver
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -1002,7 +1008,7 @@ func (s *MySuite) TestContentTypePersists(c *C) {
 	driver := s.Driver
 	typedDriver := s.MockDriver
 
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -1117,7 +1123,7 @@ func (s *MySuite) TestPartialContent(c *C) {
 	driver := s.Driver
 	typedDriver := s.MockDriver
 
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 
@@ -1175,7 +1181,7 @@ func (s *MySuite) TestListObjectsHandlerErrors(c *C) {
 	driver := s.Driver
 	typedDriver := s.MockDriver
 
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 	client := http.Client{}
@@ -1242,7 +1248,7 @@ func (s *MySuite) TestListBucketsErrors(c *C) {
 	driver := s.Driver
 	typedDriver := s.MockDriver
 
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 	client := http.Client{}
@@ -1279,7 +1285,7 @@ func (s *MySuite) TestPutBucketErrors(c *C) {
 	driver := s.Driver
 	typedDriver := s.MockDriver
 
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 	client := http.Client{}
@@ -1339,7 +1345,7 @@ func (s *MySuite) TestGetObjectErrors(c *C) {
 	driver := s.Driver
 	typedDriver := s.MockDriver
 
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 	client := http.Client{}
@@ -1412,7 +1418,7 @@ func (s *MySuite) TestGetObjectRangeErrors(c *C) {
 	driver := s.Driver
 	typedDriver := s.MockDriver
 
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 	client := http.Client{}
@@ -1456,7 +1462,7 @@ func (s *MySuite) TestObjectMultipartAbort(c *C) {
 	driver := s.Driver
 	typedDriver := s.MockDriver
 
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 	client := http.Client{}
@@ -1539,7 +1545,7 @@ func (s *MySuite) TestBucketMultipartList(c *C) {
 	driver := s.Driver
 	typedDriver := s.MockDriver
 
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 	client := http.Client{}
@@ -1628,7 +1634,7 @@ func (s *MySuite) TestObjectMultipartList(c *C) {
 	driver := s.Driver
 	typedDriver := s.MockDriver
 
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 	client := http.Client{}
@@ -1712,7 +1718,7 @@ func (s *MySuite) TestObjectMultipart(c *C) {
 	driver := s.Driver
 	typedDriver := s.MockDriver
 
-	httpHandler := HTTPHandler(driver)
+	httpHandler := HTTPHandler(setConfig(driver))
 	testServer := httptest.NewServer(httpHandler)
 	defer testServer.Close()
 	client := http.Client{}

pkg/server/httpserver/httpserver.go

@@ -25,10 +25,11 @@ import (
 
 // Config - http server config
 type Config struct {
-	Address  string
-	TLS      bool
-	CertFile string
-	KeyFile  string
+	Address         string
+	TLS             bool
+	CertFile        string
+	KeyFile         string
+	ConnectionLimit int
 }
 
 // Server - http server related

pkg/server/server.go

@@ -43,7 +43,9 @@ type MemoryFactory struct {
 func (f MemoryFactory) GetStartServerFunc() StartServerFunc {
 	return func() (chan<- string, <-chan error) {
 		_, _, driver := memory.Start(f.MaxMemory, f.Expiration)
-		ctrl, status, _ := httpserver.Start(api.HTTPHandler(driver), f.Config)
+		conf := api.Config{ConnectionLimit: f.ConnectionLimit}
+		conf.SetDriver(driver)
+		ctrl, status, _ := httpserver.Start(api.HTTPHandler(conf), f.Config)
 		return ctrl, status
 	}
 }
@@ -58,7 +60,9 @@ type FilesystemFactory struct {
 func (f FilesystemFactory) GetStartServerFunc() StartServerFunc {
 	return func() (chan<- string, <-chan error) {
 		_, _, driver := fs.Start(f.Path)
-		ctrl, status, _ := httpserver.Start(api.HTTPHandler(driver), f.Config)
+		conf := api.Config{ConnectionLimit: f.ConnectionLimit}
+		conf.SetDriver(driver)
+		ctrl, status, _ := httpserver.Start(api.HTTPHandler(conf), f.Config)
 		return ctrl, status
 	}
 }
@@ -86,7 +90,9 @@ type DonutFactory struct {
 func (f DonutFactory) GetStartServerFunc() StartServerFunc {
 	return func() (chan<- string, <-chan error) {
 		_, _, driver := donut.Start(f.Paths)
-		ctrl, status, _ := httpserver.Start(api.HTTPHandler(driver), f.Config)
+		conf := api.Config{ConnectionLimit: f.ConnectionLimit}
+		conf.SetDriver(driver)
+		ctrl, status, _ := httpserver.Start(api.HTTPHandler(conf), f.Config)
 		return ctrl, status
 	}
 }