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x/tools/gopls: context deadline exceeded with windows 10 wsl2 #49475

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wu0407 opened this issue Nov 9, 2021 · 8 comments
Closed

x/tools/gopls: context deadline exceeded with windows 10 wsl2 #49475

wu0407 opened this issue Nov 9, 2021 · 8 comments
Labels
gopls/performance Issues related to gopls performance (CPU, memory, etc). gopls Issues related to the Go language server, gopls. NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. OS-Windows Tools This label describes issues relating to any tools in the x/tools repository.

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@wu0407
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wu0407 commented Nov 9, 2021

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

$ go version
go version go1.17.3 linux/amd64
gopls: v0.7.3

Does this issue reproduce with the latest release?

yes

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

go env Output
$ go env
go version go1.17.3 linux/amd64
xiaoqing@DESKTOP-NTTMOHE:~$ go env
GO111MODULE="on"
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/xiaoqing/.cache/go-build"
GOENV="/home/xiaoqing/.config/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/xiaoqing/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/xiaoqing/go"
GOPRIVATE=""
GOPROXY="https://goproxy.cn,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="go1.17.3"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/dev/null"
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-build2970027064=/tmp/go-build -gno-record-gcc-switches"

What did you do?

Open kubernetes code in use vscode with wsl mode.
go extention report "go.mod context deadline exceeded"
I see gopls use many cpu a few time, then low cpu and memory not increase.

What did you expect to see?

no probelm

What did you see instead?

###gopls trace log on local vscode

[Trace - 19:20:32.674 PM] Received notification 'window/logMessage'.
Params: {"type":1,"message":"2021/11/09 19:20:32 errors loading workspace: context deadline exceeded\n\tsnapshot=0\n\tdirectory=file:///mnt/d/git/kubernetes\n"}


[Error - 7:20:32 PM] 2021/11/09 19:20:32 errors loading workspace: context deadline exceeded
	snapshot=0
	directory=file:///mnt/d/git/kubernetes

[Trace - 19:20:32.675 PM] Sending response 'window/workDoneProgress/create - (5)' in 1ms.
Result: 


[Trace - 19:20:32.675 PM] Received notification '$/progress'.
Params: {"token":"8674665223082153551","value":{"kind":"begin","title":"Error loading workspace","message":"context deadline exceeded"}}


[Trace - 19:20:32.704 PM] Received notification 'textDocument/publishDiagnostics'.
Params: {"uri":"file:///mnt/d/git/kubernetes/go.mod","diagnostics":[{"range":{"start":{"line":4,"character":0},"end":{"line":4,"character":24}},"severity":1,"source":"go list","message":"context deadline exceeded"}]}

###full log:
gopls-wsl-context-timeout.txt

@gopherbot gopherbot added Tools This label describes issues relating to any tools in the x/tools repository. gopls Issues related to the Go language server, gopls. labels Nov 9, 2021
@gopherbot gopherbot added this to the Unreleased milestone Nov 9, 2021
@bcmills
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bcmills commented Nov 9, 2021

IIRC the /mnt filesystem on WSL2 is extremely slow. Perhaps gopls just needs to set a longer deadline?

@wu0407
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wu0407 commented Nov 10, 2021

IIRC the /mnt filesystem on WSL2 is extremely slow. Perhaps gopls just needs to set a longer deadline?

Yes, I can't find any options with gopls timeout.

@hyangah
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hyangah commented Nov 10, 2021

I am afraid timeout longer than 10min is not ideal - according to the trace, the loading failed after more than 10min.

[Trace - 18:40:40.585 PM] Sending response 'window/workDoneProgress/create - (1)' in 5ms.
Result: 


[Trace - 18:40:40.587 PM] Received notification '$/progress'.
Params: {"token":"5577006791947779410","value":{"kind":"begin","title":"Setting up workspace","message":"Loading packages..."}}

[Error - 6:52:08 PM] 2021/11/09 18:52:08 initial workspace load failed: context deadline exceeded

I think for wsl, VS Code recommends Visual Studio Code Remote - WSL extension than starting with the /mnt filesystem. I see loading k8s workspace take ~22secs on my windows running on amd ryzen - still long time but not like more than 10min.

@hyangah hyangah modified the milestones: Unreleased, gopls/unplanned Nov 10, 2021
@hyangah hyangah added NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided. labels Nov 10, 2021
@hyangah
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hyangah commented Nov 12, 2021

@wu0407 Can you please check if you have the same issue when you use the WSL extension?

@wu0407
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wu0407 commented Nov 15, 2021

same result with wsl extention start wsl and manual start wsl. @hyangah

@findleyr
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IIRC gopls has to read something like 25K files and load 3-6GB of memory for Kubernetes (depending on if you're using staticcheck). This takes 30-45s on my (rather powerful) linux desktop. I am not at all surprised to hear that gopls is unusable at such scale on WSL2.

We are considering a project to allow gopls to avoid loading the entire workspace for projects like Kubernetes, hopefully for early 2022. In the meantime, gopls will not work well for this use case, sorry.

I'm going to leave this in the backlog, so that we may find it while working on performance (and hopefully verify that it is improved).

@findleyr findleyr added gopls/performance Issues related to gopls performance (CPU, memory, etc). and removed WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided. labels Nov 18, 2021
@findleyr
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The project mentioned above is complete, and tentatively released in gopls@v0.12.0-pre.1. Please try it out to see if it helps.

In the meantime, I am going to close this bug as timed-out. Please comment if you are still having issues.

@findleyr findleyr closed this as not planned Won't fix, can't repro, duplicate, stale Apr 25, 2023
@hg-hg
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hg-hg commented Jan 12, 2024

Hi @findleyr, I'm facing the same issue with the following env:

go version go1.20.12 linux/amd64
golang.org/x/tools/gopls v0.14.2

I'm also using the gopackagesdriver imported from rules_go v0.42.0. Is this a known issue that has been fixed?

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Labels
gopls/performance Issues related to gopls performance (CPU, memory, etc). gopls Issues related to the Go language server, gopls. NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. OS-Windows Tools This label describes issues relating to any tools in the x/tools repository.
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