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net/rpc: error not returned if ClientCodec.WriteRequest sleeps #38681

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meehow opened this issue Apr 26, 2020 · 1 comment
Open

net/rpc: error not returned if ClientCodec.WriteRequest sleeps #38681

meehow opened this issue Apr 26, 2020 · 1 comment
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NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
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Unplanned

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@meehow
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meehow commented Apr 26, 2020

What version of Go are you using (go version)?

$ go version
go version go1.14.2 linux/amd64

Does this issue reproduce with the latest release?

it is the latest release

What operating system and processor architecture are you using (go env)?

go env Output
$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/m/.cache/go-build"
GOENV="/home/m/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/m/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/snap/go/5646"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/snap/go/5646/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-build411699074=/tmp/go-build -gno-record-gcc-switches"

What did you do?

I'm trying to write custom rpc.ClientCodec
Here is simplified version: https://play.golang.org/p/T8JLIsxvhto

What did you expect to see?

I expect to see an error from WriteRequest function

What did you see instead?

(*rpc.Client).Call doesn't return an error. Error appears only when I remove time.Sleep (line 13)
@smasher164 smasher164 changed the title error from rpc.ClientCodec.WriteRequest not returned by rpc.Client.Call net/rpc: error not returned if ClientCodec.WriteRequest sleeps Apr 27, 2020
@smasher164 smasher164 added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Apr 27, 2020
@smasher164
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@robpike

@seankhliao seankhliao added this to the Unplanned milestone Aug 27, 2022
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@meehow @seankhliao @smasher164