mirror of
https://github.com/minio/minio.git
synced 2024-12-24 22:25:54 -05:00
95 lines
3.2 KiB
Go
95 lines
3.2 KiB
Go
// +build linux
|
|
|
|
/*
|
|
* MinIO Cloud Storage, (C) 2020 MinIO, Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package http
|
|
|
|
import (
|
|
"context"
|
|
"net"
|
|
"syscall"
|
|
"time"
|
|
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
func setInternalTCPParameters(c syscall.RawConn) error {
|
|
return c.Control(func(fdPtr uintptr) {
|
|
// got socket file descriptor to set parameters.
|
|
fd := int(fdPtr)
|
|
|
|
// Enable TCP fast connect
|
|
// TCPFastOpenConnect sets the underlying socket to use
|
|
// the TCP fast open connect. This feature is supported
|
|
// since Linux 4.11.
|
|
_ = syscall.SetsockoptInt(fd, syscall.IPPROTO_TCP, unix.TCP_FASTOPEN_CONNECT, 1)
|
|
|
|
// The time (in seconds) the connection needs to remain idle before
|
|
// TCP starts sending keepalive probes, set this to 5 secs
|
|
// system defaults to 7200 secs!!!
|
|
_ = syscall.SetsockoptInt(fd, syscall.IPPROTO_TCP, syscall.TCP_KEEPIDLE, 5)
|
|
|
|
// Number of probes.
|
|
// ~ cat /proc/sys/net/ipv4/tcp_keepalive_probes (defaults to 9, we reduce it to 5)
|
|
// 9
|
|
_ = syscall.SetsockoptInt(fd, syscall.IPPROTO_TCP, syscall.TCP_KEEPCNT, 5)
|
|
|
|
// Wait time after successful probe in seconds.
|
|
// ~ cat /proc/sys/net/ipv4/tcp_keepalive_intvl (defaults to 75 secs, we reduce it to 3 secs)
|
|
// 75
|
|
_ = syscall.SetsockoptInt(fd, syscall.IPPROTO_TCP, syscall.TCP_KEEPINTVL, 3)
|
|
})
|
|
}
|
|
|
|
// DialContext is a function to make custom Dial for internode communications
|
|
type DialContext func(ctx context.Context, network, address string) (net.Conn, error)
|
|
|
|
// NewInternodeDialContext setups a custom dialer for internode communication
|
|
func NewInternodeDialContext(dialTimeout time.Duration) DialContext {
|
|
return func(ctx context.Context, network, addr string) (net.Conn, error) {
|
|
dialer := &net.Dialer{
|
|
Timeout: dialTimeout,
|
|
Control: func(network, address string, c syscall.RawConn) error {
|
|
return setInternalTCPParameters(c)
|
|
},
|
|
}
|
|
return dialer.DialContext(ctx, network, addr)
|
|
}
|
|
}
|
|
|
|
// NewCustomDialContext setups a custom dialer for any external communication and proxies.
|
|
func NewCustomDialContext(dialTimeout time.Duration) DialContext {
|
|
return func(ctx context.Context, network, addr string) (net.Conn, error) {
|
|
dialer := &net.Dialer{
|
|
Timeout: dialTimeout,
|
|
Control: func(network, address string, c syscall.RawConn) error {
|
|
return c.Control(func(fdPtr uintptr) {
|
|
// got socket file descriptor to set parameters.
|
|
fd := int(fdPtr)
|
|
|
|
// Enable TCP fast connect
|
|
// TCPFastOpenConnect sets the underlying socket to use
|
|
// the TCP fast open connect. This feature is supported
|
|
// since Linux 4.11.
|
|
_ = syscall.SetsockoptInt(fd, syscall.IPPROTO_TCP, unix.TCP_FASTOPEN_CONNECT, 1)
|
|
})
|
|
},
|
|
}
|
|
return dialer.DialContext(ctx, network, addr)
|
|
}
|
|
}
|