net/http: RoundTripper is not sending tcp fin packet after response body close, even on exit #41342
Comments
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I forgot to say |
toothrot
changed the title
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I am not able to reproduce this locally, or I am missing something about your issue. The socket looks to be successfully closing to me. As an aside, I believe Does calling |
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Hi toothrot 10.255.254.161 is server and 10.0.2.15 is client for HTTP disablekeepalive is true since I want use 1 socket(tcp connection) per http request tcpdump all log |
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here is the code of test import ( //var a string func main() { } |
What version of Go are you using (
go version)?Does this issue reproduce with the latest release?
What operating system and processor architecture are you using (
go env)?GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/root/.cache/go-build"
GOENV="/root/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/root/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/lib/go-1.14"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/lib/go-1.14/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build841420152=/tmp/go-build -gno-record-gcc-switches
go envOutputWhat did you do?
package main
import (
"net/http"
"io/ioutil"
)
//var a string
func main() {
conntransport := &http.Transport{
DisableKeepAlives: true,
DisableCompression: true,
}
client := &http.Client{Transport: conntransport}
req, _ := http.NewRequest("GET", "http://10.255.254.161", nil)
req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.83 Safari/537.36")
resp,_:=client.Do(req)
ioutil.ReadAll(resp.Body)
defer resp.Body.Close()
}
What did you expect to see?
I expect to see the tcp fin packet or tcp rst packet send after I use resp.Body.Close()
What did you see instead?
after I recv response from server
server send tcp fin psh ack flag packet
and I send tcp fin ack flag packet
and server send tcp ack packet
and client not send tcp fin or tcp rst packet
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