diff --git a/HISTORY.md b/HISTORY.md
index 6750362d..b184f008 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -371,6 +371,8 @@ Other Improvements:
![DBUG routes](https://iris-go.com/images/v12.2.0-dbug2.png?v=0)
+- Socket Sharding as requested at [#1544](https://github.com/kataras/iris/issues/1544). New `iris.WithSocketSharding` Configurator and `SocketSharding bool` setting.
+
- Versioned Controllers feature through the new `mvc.Version` option. See [_examples/mvc/versioned-controller](https://github.com/kataras/iris/blob/master/_examples/mvc/versioned-controller/main.go).
- Fix [#1539](https://github.com/kataras/iris/issues/1539).
diff --git a/_examples/README.md b/_examples/README.md
index e4cf7d7b..4611ff99 100644
--- a/_examples/README.md
+++ b/_examples/README.md
@@ -15,11 +15,11 @@
* [UNIX socket file](http-server/listen-unix/main.go)
* [TLS](http-server/listen-tls/main.go)
* [Letsencrypt (Automatic Certifications)](http-server/listen-letsencrypt/main.go)
+ * [Socket Sharding (SO_REUSEPORT)](http-server/socket-sharding/main.go)
* [Graceful Shutdown](http-server/graceful-shutdown/default-notifier/main.go)
* [Notify on shutdown](http-server/notify-on-shutdown/main.go)
* Custom TCP Listener
* [Common net.Listener](http-server/custom-listener/main.go)
- * [SO_REUSEPORT for unix systems](http-server/custom-listener/unix-reuseport/main.go)
* Custom HTTP Server
* [Pass a custom Server](http-server/custom-httpserver/easy-way/main.go)
* [Use Iris as a single http.Handler](http-server/custom-httpserver/std-way/main.go)
diff --git a/_examples/bootstrapper/main.go b/_examples/bootstrapper/main.go
index 24054145..4a8e1d1e 100644
--- a/_examples/bootstrapper/main.go
+++ b/_examples/bootstrapper/main.go
@@ -1,9 +1,9 @@
package main
import (
- "github.com/kataras/iris/v12/_examples/bootstrap/bootstrap"
- "github.com/kataras/iris/v12/_examples/bootstrap/middleware/identity"
- "github.com/kataras/iris/v12/_examples/bootstrap/routes"
+ "github.com/kataras/iris/v12/_examples/bootstrapper/bootstrap"
+ "github.com/kataras/iris/v12/_examples/bootstrapper/middleware/identity"
+ "github.com/kataras/iris/v12/_examples/bootstrapper/routes"
)
func newApp() *bootstrap.Bootstrapper {
diff --git a/_examples/bootstrapper/middleware/identity/identity.go b/_examples/bootstrapper/middleware/identity/identity.go
index 2228fbac..6ce7f309 100644
--- a/_examples/bootstrapper/middleware/identity/identity.go
+++ b/_examples/bootstrapper/middleware/identity/identity.go
@@ -5,7 +5,7 @@ import (
"github.com/kataras/iris/v12"
- "github.com/kataras/iris/v12/_examples/bootstrap/bootstrap"
+ "github.com/kataras/iris/v12/_examples/bootstrapper/bootstrap"
)
// New returns a new handler which adds some headers and view data
diff --git a/_examples/bootstrapper/routes/routes.go b/_examples/bootstrapper/routes/routes.go
index c7b19042..3f52ea75 100644
--- a/_examples/bootstrapper/routes/routes.go
+++ b/_examples/bootstrapper/routes/routes.go
@@ -1,7 +1,7 @@
package routes
import (
- "github.com/kataras/iris/v12/_examples/bootstrap/bootstrap"
+ "github.com/kataras/iris/v12/_examples/bootstrapper/bootstrap"
)
// Configure registers the necessary routes to the app.
diff --git a/_examples/http-server/README.md b/_examples/http-server/README.md
index 0a0a43dd..d588a0c6 100644
--- a/_examples/http-server/README.md
+++ b/_examples/http-server/README.md
@@ -11,7 +11,8 @@ we use the `iris.Addr` which is an `iris.Runner` type
```go
// Listening on tcp with network address 0.0.0.0:8080
-app.Listen(":8080")
+// app.Listen(":8080") it's a shortcut of:
+app.Run(iris.Addr(":8080"))
```
Sometimes you have created a standard net/http server somewhere else in your app and want to use that to serve the Iris web app
@@ -66,53 +67,6 @@ func main() {
}
```
-UNIX and BSD hosts can take advantage of the reuse port feature
-
-```go
-package main
-
-import (
- // Package tcplisten provides customizable TCP net.Listener with various
- // performance-related options:
- //
- // - SO_REUSEPORT. This option allows linear scaling server performance
- // on multi-CPU servers.
- // See https://www.nginx.com/blog/socket-sharding-nginx-release-1-9-1/ for details.
- //
- // - TCP_DEFER_ACCEPT. This option expects the server reads from the accepted
- // connection before writing to them.
- //
- // - TCP_FASTOPEN. See https://lwn.net/Articles/508865/ for details.
- "github.com/valyala/tcplisten"
-
- "github.com/kataras/iris/v12"
-)
-
-// go get github.com/valyala/tcplisten
-// go run main.go
-
-func main() {
- app := iris.New()
-
- app.Get("/", func(ctx iris.Context) {
- ctx.HTML("
Hello World!
")
- })
-
- listenerCfg := tcplisten.Config{
- ReusePort: true,
- DeferAccept: true,
- FastOpen: true,
- }
-
- l, err := listenerCfg.NewListener("tcp", ":8080")
- if err != nil {
- app.Logger().Fatal(err)
- }
-
- app.Run(iris.Listener(l))
-}
-```
-
### HTTP/2 and Secure
If you have signed file keys you can use the `iris.TLS` to serve `https` based on those certification keys
diff --git a/_examples/http-server/custom-listener/unix-reuseport/main.go b/_examples/http-server/custom-listener/unix-reuseport/main.go
deleted file mode 100644
index 7b67d5fc..00000000
--- a/_examples/http-server/custom-listener/unix-reuseport/main.go
+++ /dev/null
@@ -1,42 +0,0 @@
-// +build linux darwin dragonfly freebsd netbsd openbsd rumprun
-
-package main
-
-import (
- // Package tcplisten provides customizable TCP net.Listener with various
- // performance-related options:
- //
- // - SO_REUSEPORT. This option allows linear scaling server performance
- // on multi-CPU servers.
- // See https://www.nginx.com/blog/socket-sharding-nginx-release-1-9-1/ for details.
- //
- // - TCP_DEFER_ACCEPT. This option expects the server reads from the accepted
- // connection before writing to them.
- //
- // - TCP_FASTOPEN. See https://lwn.net/Articles/508865/ for details.
- "github.com/valyala/tcplisten"
-
- "github.com/kataras/iris/v12"
-)
-
-// You can run the same app as many times as you want.
-func main() {
- app := iris.New()
-
- app.Get("/", func(ctx iris.Context) {
- ctx.HTML("Hello World!")
- })
-
- listenerCfg := tcplisten.Config{
- ReusePort: true,
- DeferAccept: true,
- FastOpen: true,
- }
-
- l, err := listenerCfg.NewListener("tcp4", ":8080")
- if err != nil {
- panic(err)
- }
-
- app.Run(iris.Listener(l))
-}
diff --git a/_examples/http-server/custom-listener/unix-reuseport/main_windows.go b/_examples/http-server/custom-listener/unix-reuseport/main_windows.go
deleted file mode 100644
index 91c9720f..00000000
--- a/_examples/http-server/custom-listener/unix-reuseport/main_windows.go
+++ /dev/null
@@ -1,7 +0,0 @@
-// +build windows
-
-package main
-
-func main() {
- panic("windows operating system does not support this feature")
-}
diff --git a/_examples/http-server/listen-tls/main.go b/_examples/http-server/listen-tls/main.go
index a9dee519..5dd1170e 100644
--- a/_examples/http-server/listen-tls/main.go
+++ b/_examples/http-server/listen-tls/main.go
@@ -18,10 +18,10 @@ func main() {
// Start the server (HTTPS) on port 443,
// and a secondary of (HTTP) on port :80 which redirects requests to their HTTPS version.
// This is a blocking func.
- app.Run(iris.TLS("127.0.0.1:443", "mycert.cert", "mykey.key"))
+ app.Run(iris.TLS("127.0.0.1:443", "mycert.crt", "mykey.key"))
// Note: to disable automatic "http://" to "https://" redirections pass the `iris.TLSNoRedirect`
// host configurator to TLS or AutoTLS functions, e.g:
//
- // app.Run(iris.TLS("127.0.0.1:443", "mycert.cert", "mykey.key", iris.TLSNoRedirect))
+ // app.Run(iris.TLS("127.0.0.1:443", "mycert.crt", "mykey.key", iris.TLSNoRedirect))
}
diff --git a/_examples/http-server/listen-tls/mycert.cert b/_examples/http-server/listen-tls/mycert.cert
deleted file mode 100644
index 39106262..00000000
--- a/_examples/http-server/listen-tls/mycert.cert
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDAzCCAeugAwIBAgIJAPDsxtKV4v3uMA0GCSqGSIb3DQEBBQUAMBgxFjAUBgNV
-BAMMDTEyNy4wLjAuMTo0NDMwHhcNMTYwNjI5MTMxMjU4WhcNMjYwNjI3MTMxMjU4
-WjAYMRYwFAYDVQQDDA0xMjcuMC4wLjE6NDQzMIIBIjANBgkqhkiG9w0BAQEFAAOC
-AQ8AMIIBCgKCAQEA0KtAOHKrcbLwWJXgRX7XSFyu4HHHpSty4bliv8ET4sLJpbZH
-XeVX05Foex7PnrurDP6e+0H5TgqqcpQM17/ZlFcyKrJcHSCgV0ZDB3Sb8RLQSLns
-8a+MOSbn1WZ7TkC7d/cWlKmasQRHQ2V/cWlGooyKNEPoGaEz8MbY0wn2spyIJwsB
-dciERC6317VTXbiZdoD8QbAsT+tBvEHM2m2A7B7PQmHNehtyFNbSV5uZNodvv1uv
-ZTnDa6IqpjFLb1b2HNFgwmaVPmmkLuy1l9PN+o6/DUnXKKBrfPAx4JOlqTKEQpWs
-pnfacTE3sWkkmOSSFltAXfkXIJFKdS/hy5J/KQIDAQABo1AwTjAdBgNVHQ4EFgQU
-zr1df/c9+NyTpmyiQO8g3a8NswYwHwYDVR0jBBgwFoAUzr1df/c9+NyTpmyiQO8g
-3a8NswYwDAYDVR0TBAUwAwEB/zANBgkqhkiG9w0BAQUFAAOCAQEACG5shtMSDgCd
-MNjOF+YmD+PX3Wy9J9zehgaDJ1K1oDvBbQFl7EOJl8lRMWITSws22Wxwh8UXVibL
-sscKBp14dR3e7DdbwCVIX/JyrJyOaCfy2nNBdf1B06jYFsIHvP3vtBAb9bPNOTBQ
-QE0Ztu9kCqgsmu0//sHuBEeA3d3E7wvDhlqRSxTLcLtgC1NSgkFvBw0JvwgpkX6s
-M5WpSBZwZv8qpplxhFfqNy8Uf+xrpSW0pGfkHumehkQGC6/Ry7raganS0aHhDPK9
-Z1bEJ2com1bFFAQsm9yIXrRVMGGCtihB2Au0Q4jpEjUbzWYM+ItZyvRAGRM6Qex6
-s/jogMeRsw==
------END CERTIFICATE-----
diff --git a/_examples/http-server/listen-tls/mycert.crt b/_examples/http-server/listen-tls/mycert.crt
new file mode 100644
index 00000000..9db93b09
--- /dev/null
+++ b/_examples/http-server/listen-tls/mycert.crt
@@ -0,0 +1,31 @@
+-----BEGIN CERTIFICATE-----
+MIIFazCCA1OgAwIBAgIUfwMd9auWixp19UnXOmyxJ9Jkv7IwDQYJKoZIhvcNAQEL
+BQAwRTELMAkGA1UEBhMCQVUxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoM
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+YzLDh2RSaHsgHMPy2BKqR+q2N+lpg7inAWuJM1Huq6eHFqhiyQkzsfscBd1Dpm8=
+-----END CERTIFICATE-----
diff --git a/_examples/http-server/listen-tls/mykey.key b/_examples/http-server/listen-tls/mykey.key
index 309569b4..39f7b3af 100644
--- a/_examples/http-server/listen-tls/mykey.key
+++ b/_examples/http-server/listen-tls/mykey.key
@@ -1,27 +1,52 @@
------BEGIN RSA PRIVATE KEY-----
-MIIEpQIBAAKCAQEA0KtAOHKrcbLwWJXgRX7XSFyu4HHHpSty4bliv8ET4sLJpbZH
-XeVX05Foex7PnrurDP6e+0H5TgqqcpQM17/ZlFcyKrJcHSCgV0ZDB3Sb8RLQSLns
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-MlobQSunSDKx/CCJhWkbytCyh1bngAtwSAYLXavYIlJbAzx6FvtAIw4=
------END RSA PRIVATE KEY-----
+-----BEGIN PRIVATE KEY-----
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+Wsfh18mhjtamaOPEFx5K0x4d0PI8tW5ouiUUkVIDaue27XfS969qEChv768/44eX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+-----END PRIVATE KEY-----
diff --git a/_examples/http-server/listen-unix/main.go b/_examples/http-server/listen-unix/main.go
index 65d6e414..73096504 100644
--- a/_examples/http-server/listen-unix/main.go
+++ b/_examples/http-server/listen-unix/main.go
@@ -15,5 +15,3 @@ func main() {
app.Run(iris.Listener(l))
}
-
-// Look "custom-listener/unix-reuseport" too.
diff --git a/_examples/http-server/socket-sharding/main.go b/_examples/http-server/socket-sharding/main.go
new file mode 100644
index 00000000..bd5d7e4a
--- /dev/null
+++ b/_examples/http-server/socket-sharding/main.go
@@ -0,0 +1,21 @@
+package main
+
+import (
+ "time"
+
+ "github.com/kataras/iris/v12"
+)
+
+func main() {
+ startup := time.Now()
+
+ app := iris.New()
+ app.Get("/", func(ctx iris.Context) {
+ s := startup.Format(ctx.Application().ConfigurationReadOnly().GetTimeFormat())
+ ctx.Writef("This server started at: %s\n", s)
+ })
+
+ // This option allows linear scaling server performance on multi-CPU servers.
+ // See https://www.nginx.com/blog/socket-sharding-nginx-release-1-9-1/ for details.
+ app.Listen(":8080", iris.WithSocketSharding)
+}
diff --git a/configuration.go b/configuration.go
index 0c7654c9..ab5a66dd 100644
--- a/configuration.go
+++ b/configuration.go
@@ -192,6 +192,13 @@ func WithLogLevel(level string) Configurator {
}
}
+// WithSocketSharding sets the `Configuration.SocketSharding` field to true.
+func WithSocketSharding(app *Application) {
+ // Note(@kataras): It could be a host Configurator but it's an application setting in order
+ // to configure it through yaml/toml files as well.
+ app.config.SocketSharding = true
+}
+
// WithoutServerError will cause to ignore the matched "errors"
// from the main application's `Run/Listen` function.
//
@@ -805,10 +812,22 @@ type Configuration struct {
// * "debug"
LogLevel string `json:"logLevel" yaml:"LogLevel" toml:"LogLevel" env:"LOG_LEVEL"`
+ // SocketSharding enables SO_REUSEPORT (or SO_REUSEADDR for windows)
+ // on all registered Hosts.
+ // This option allows linear scaling server performance on multi-CPU servers.
+ //
+ // Please read the following:
+ // 1. https://stackoverflow.com/a/14388707
+ // 2. https://stackoverflow.com/a/59692868
+ // 3. https://www.nginx.com/blog/socket-sharding-nginx-release-1-9-1/
+ // 4. (BOOK) Learning HTTP/2: A Practical Guide for Beginners:
+ // Page 37, To Shard or Not to Shard?
+ //
+ // Defaults to false.
+ SocketSharding bool `json:"socketSharding" yaml:"SocketSharding" toml:"SocketSharding" env:"SOCKET_SHARDING"`
// Tunneling can be optionally set to enable ngrok http(s) tunneling for this Iris app instance.
// See the `WithTunneling` Configurator too.
Tunneling TunnelingConfiguration `json:"tunneling,omitempty" yaml:"Tunneling" toml:"Tunneling"`
-
// IgnoreServerErrors will cause to ignore the matched "errors"
// from the main application's `Run` function.
// This is a slice of string, not a slice of error
@@ -1046,6 +1065,11 @@ func (c Configuration) GetLogLevel() string {
return c.vhost
}
+// GetSocketSharding returns the SocketSharding field.
+func (c Configuration) GetSocketSharding() bool {
+ return c.SocketSharding
+}
+
// GetDisablePathCorrection returns the DisablePathCorrection field.
func (c Configuration) GetDisablePathCorrection() bool {
return c.DisablePathCorrection
@@ -1182,6 +1206,10 @@ func WithConfiguration(c Configuration) Configurator {
main.LogLevel = v
}
+ if v := c.SocketSharding; v {
+ main.SocketSharding = v
+ }
+
if c.Tunneling.isEnabled() {
main.Tunneling = c.Tunneling
}
@@ -1320,6 +1348,7 @@ func WithConfiguration(c Configuration) Configurator {
func DefaultConfiguration() Configuration {
return Configuration{
LogLevel: "info",
+ SocketSharding: false,
DisableStartupLog: false,
DisableInterruptHandler: false,
DisablePathCorrection: false,
diff --git a/context/configuration.go b/context/configuration.go
index 5f09f0cb..557ac51c 100644
--- a/context/configuration.go
+++ b/context/configuration.go
@@ -12,6 +12,8 @@ type ConfigurationReadOnly interface {
GetVHost() string
// GetLogLevel returns the LogLevel field.
GetLogLevel() string
+ // GetSocketSharding returns the SocketSharding field.
+ GetSocketSharding() bool
// GetDisablePathCorrection returns the DisablePathCorrection field
GetDisablePathCorrection() bool
// GetDisablePathCorrectionRedirection returns the DisablePathCorrectionRedirection field.
diff --git a/core/host/supervisor.go b/core/host/supervisor.go
index 96be33e5..915ebf85 100644
--- a/core/host/supervisor.go
+++ b/core/host/supervisor.go
@@ -13,9 +13,9 @@ import (
"sync/atomic"
"time"
- "golang.org/x/crypto/acme/autocert"
-
"github.com/kataras/iris/v12/core/netutil"
+
+ "golang.org/x/crypto/acme/autocert"
)
// Configurator provides an easy way to modify
@@ -48,6 +48,9 @@ type Supervisor struct {
// Defaults to empty.
IgnoredErrors []string
onErr []func(error)
+
+ // See `iris.Configuration.SocketSharding`.
+ SocketSharding bool
}
// New returns a new host supervisor
@@ -124,8 +127,8 @@ func (su *Supervisor) newListener() (net.Listener, error) {
// restarts we may want for the server.
//
// User still be able to call .Serve instead.
- // l, err := netutil.TCPKeepAlive(su.Server.Addr)
- l, err := netutil.TCP(su.Server.Addr)
+ // l, err := netutil.TCPKeepAlive(su.Server.Addr, su.SocketReuse)
+ l, err := netutil.TCP(su.Server.Addr, su.SocketSharding)
if err != nil {
return nil, err
}
@@ -367,7 +370,13 @@ func (su *Supervisor) runTLS(getCertificate func(*tls.ClientHelloInfo) (*tls.Cer
defer cancel()
http1RedirectServer.Shutdown(ctx)
})
- go http1RedirectServer.ListenAndServe()
+
+ ln, err := netutil.TCP(":http", su.SocketSharding)
+ if err != nil {
+ return err
+ }
+
+ go http1RedirectServer.Serve(ln)
}
if su.Server.TLSConfig == nil {
@@ -401,7 +410,12 @@ func (su *Supervisor) runTLS(getCertificate func(*tls.ClientHelloInfo) (*tls.Cer
}
}
- return su.supervise(func() error { return su.Server.ListenAndServeTLS("", "") })
+ ln, err := netutil.TCP(su.Server.Addr, su.SocketSharding)
+ if err != nil {
+ return err
+ }
+
+ return su.supervise(func() error { return su.Server.ServeTLS(ln, "", "") })
}
// RegisterOnShutdown registers a function to call on Shutdown.
diff --git a/core/netutil/tcp.go b/core/netutil/tcp.go
index 169943af..8a242424 100644
--- a/core/netutil/tcp.go
+++ b/core/netutil/tcp.go
@@ -1,6 +1,7 @@
package netutil
import (
+ "context"
"crypto/tls"
"errors"
"fmt"
@@ -38,16 +39,17 @@ func (l tcpKeepAliveListener) Accept() (net.Conn, error) {
}
// TCP returns a new tcp(ipv6 if supported by network) and an error on failure.
-func TCP(addr string) (net.Listener, error) {
- l, err := net.Listen("tcp", addr)
- if err != nil {
- return nil, err
+func TCP(addr string, reuse bool) (net.Listener, error) {
+ var cfg net.ListenConfig
+ if reuse {
+ cfg.Control = control
}
- return l, nil
+
+ return cfg.Listen(context.Background(), "tcp", addr)
}
// TCPKeepAlive returns a new tcp keep alive Listener and an error on failure.
-func TCPKeepAlive(addr string) (ln net.Listener, err error) {
+func TCPKeepAlive(addr string, reuse bool) (ln net.Listener, err error) {
// if strings.HasPrefix(addr, "127.0.0.1") {
// // it's ipv4, use ipv4 tcp listener instead of the default ipv6. Don't.
// ln, err = net.Listen("tcp4", addr)
@@ -55,7 +57,7 @@ func TCPKeepAlive(addr string) (ln net.Listener, err error) {
// ln, err = TCP(addr)
// }
- ln, err = TCP(addr)
+ ln, err = TCP(addr, reuse)
if err != nil {
return nil, err
}
@@ -110,19 +112,20 @@ func CERT(addr string, cert tls.Certificate) (net.Listener, error) {
// LETSENCRYPT returns a new Automatic TLS Listener using letsencrypt.org service
// receives three parameters,
// the first is the host of the server,
-// second can be the server name(domain) or empty if skip verification is the expected behavior (not recommended)
-// and the third is optionally, the cache directory, if you skip it then the cache directory is "./certcache"
+// second one should declare if the underline tcp listener can be binded more than once,
+// third can be the server name(domain) or empty if skip verification is the expected behavior (not recommended),
+// and the forth is optionally, the cache directory, if you skip it then the cache directory is "./certcache"
// if you want to disable cache directory then simple give it a value of empty string ""
//
// does NOT supports localhost domains for testing.
//
// this is the recommended function to use when you're ready for production state.
-func LETSENCRYPT(addr string, serverName string, cacheDirOptional ...string) (net.Listener, error) {
+func LETSENCRYPT(addr string, reuse bool, serverName string, cacheDirOptional ...string) (net.Listener, error) {
if portIdx := strings.IndexByte(addr, ':'); portIdx == -1 {
addr += ":443"
}
- l, err := TCP(addr)
+ l, err := TCP(addr, reuse)
if err != nil {
return nil, err
}
diff --git a/core/netutil/tcp_soreuse_control_unix.go b/core/netutil/tcp_soreuse_control_unix.go
new file mode 100644
index 00000000..3ed7f55d
--- /dev/null
+++ b/core/netutil/tcp_soreuse_control_unix.go
@@ -0,0 +1,25 @@
+// +build !windows,!wasm
+
+package netutil
+
+import (
+ "syscall"
+
+ "golang.org/x/sys/unix"
+)
+
+func control(network, address string, c syscall.RawConn) (err error) {
+ c.Control(func(fd uintptr) {
+ err = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEADDR, 1)
+ if err != nil {
+ return
+ }
+
+ err = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEPORT, 1)
+ if err != nil {
+ return
+ }
+ })
+
+ return
+}
diff --git a/core/netutil/tcp_soreuse_control_wasm.go b/core/netutil/tcp_soreuse_control_wasm.go
new file mode 100644
index 00000000..a38a9d00
--- /dev/null
+++ b/core/netutil/tcp_soreuse_control_wasm.go
@@ -0,0 +1,9 @@
+// +build wasm
+
+package netutil
+
+import "syscall"
+
+func control(network, address string, c syscall.RawConn) error {
+ return nil
+}
diff --git a/core/netutil/tcp_soreuse_control_windows.go b/core/netutil/tcp_soreuse_control_windows.go
new file mode 100644
index 00000000..31e7aeac
--- /dev/null
+++ b/core/netutil/tcp_soreuse_control_windows.go
@@ -0,0 +1,13 @@
+package netutil
+
+import (
+ "syscall"
+
+ "golang.org/x/sys/windows"
+)
+
+func control(network, address string, c syscall.RawConn) (err error) {
+ return c.Control(func(fd uintptr) {
+ err = windows.SetsockoptInt(windows.Handle(fd), windows.SOL_SOCKET, windows.SO_REUSEADDR, 1)
+ })
+}
diff --git a/go.mod b/go.mod
index f9e087f9..09dd3c9d 100644
--- a/go.mod
+++ b/go.mod
@@ -34,6 +34,7 @@ require (
go.etcd.io/bbolt v1.3.5
golang.org/x/crypto v0.0.0-20200604202706-70a84ac30bf9
golang.org/x/net v0.0.0-20200602114024-627f9648deb9
+ golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd
golang.org/x/text v0.3.3
golang.org/x/time v0.0.0-20200416051211-89c76fbcd5d1
google.golang.org/protobuf v1.24.0
diff --git a/iris.go b/iris.go
index ed473a76..0b6a6e1e 100644
--- a/iris.go
+++ b/iris.go
@@ -1107,6 +1107,10 @@ func (app *Application) Run(serve Runner, withOrWithout ...Configurator) error {
return err
}
+ app.ConfigureHost(func(host *Supervisor) {
+ host.SocketSharding = app.config.SocketSharding
+ })
+
app.tryStartTunneling()
if len(app.Hosts) > 0 {