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x/tools/gopls/internal/regtest: TestDeleteModule_Interdependent flakes due to orphaned file reloading #46375

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findleyr opened this issue May 25, 2021 · 5 comments
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x/tools/gopls/internal/regtest: TestDeleteModule_Interdependent flakes due to orphaned file reloading #46375

findleyr opened this issue May 25, 2021 · 5 comments
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FrozenDueToAge gopls Issues related to the Go language server, gopls. Testing An issue that has been verified to require only test changes, not just a test failure. Tools This label describes issues relating to any tools in the x/tools repository.
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gopls/v0.12.0

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@findleyr
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Looking at regtest failures for issue #46183, one common source of flakes in slower builders is TestDeleteModule_Interdependent in golang.org/x/tools/gopls/internal/regtest/workspace.

For example:
https://build.golang.org/log/c962f4fbb5df4c74ebe76f8aeb610eed3065f267
https://storage.googleapis.com/go-build-log/8b462d75/freebsd-amd64-12_2_e126050b.log

This test failure appears to be a race related to orphaned file reloading. All failures have a log message about reloadOrphanedFiles, but when it succeeds locally I never see this log message.

Since it is an experimental feature, we should disable this test until we understand it.

CC @stamblerre @heschi
@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 May 25, 2021
@gopherbot gopherbot added this to the Unreleased milestone May 25, 2021
@gopherbot
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Change https://golang.org/cl/322649 mentions this issue: gopls/internal/regtest: skip TestDeleteModule_Interdependent

gopherbot pushed a commit to golang/tools that referenced this issue May 25, 2021
@findleyr
gopls/internal/regtest: skip TestDeleteModule_Interdependent
a3eb095 
This test is flaky due to orphaned file reloading. Since it is for an
experimental feature, skip it until we understand the problem.

For golang/go#46375
Updates golang/go#46183

Change-Id: Id6b369f2b61730c8503e3532547708f7689343c3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/322649
Trust: Robert Findley <[email protected]>
Run-TryBot: Robert Findley <[email protected]>
gopls-CI: kokoro <[email protected]>
TryBot-Result: Go Bot <[email protected]>
Reviewed-by: Rebecca Stambler <[email protected]>
@stamblerre stamblerre modified the milestones: gopls/v0.7.0, gopls/v0.7.1 Jun 4, 2021
@stamblerre stamblerre modified the milestones: gopls/v0.7.1, gopls/v0.7.2 Jul 26, 2021
@stamblerre stamblerre modified the milestones: gopls/v0.7.2, gopls/on-deck Sep 9, 2021
@findleyr findleyr modified the milestones: gopls/v0.7.4, gopls/v0.7.5 Dec 14, 2021
@findleyr findleyr modified the milestones: gopls/v0.7.5, gopls/v0.8.0 Jan 4, 2022
@findleyr findleyr modified the milestones: gopls/v0.8.0, gopls/v0.8.1 Feb 15, 2022
@findleyr findleyr modified the milestones: gopls/v0.8.1, gopls/v0.8.2 Mar 7, 2022
@findleyr findleyr modified the milestones: gopls/v0.8.2, gopls/on-deck Mar 24, 2022
@findleyr findleyr added Testing An issue that has been verified to require only test changes, not just a test failure. and removed gopls/testing labels May 10, 2022
@findleyr findleyr mentioned this issue Jul 14, 2022
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@gopherbot
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Change https://go.dev/cl/422910 mentions this issue: gopls/internal/regtest: unskip TestDeleteModule_Interdependent

gopherbot pushed a commit to golang/tools that referenced this issue Aug 15, 2022
@findleyr
gopls/internal/regtest: unskip TestDeleteModule_Interdependent
938e162 
Reloading has been significantly refactored recently. Unskip this test
to see if it flakes:
 - If it does not flake, that is a useful signal.
 - If it does flake, that is also a useful signal.

Notably, following CL 419500 we allow network when reloading the
workspace, and so do not need to apply quick-fixes in order to download
the new module from the proxy.

For golang/go#46375
For golang/go#53878

Change-Id: Idde7195730c32bdb434a26b28aac82649dd1b5ac
Reviewed-on: https://go-review.googlesource.com/c/tools/+/422910
Run-TryBot: Robert Findley <[email protected]>
TryBot-Result: Gopher Robot <[email protected]>
Reviewed-by: Peter Weinberger <[email protected]>
gopls-CI: kokoro <[email protected]>
@bcmills
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bcmills commented Aug 22, 2022

greplogs -l -e 'FAIL: TestDeleteModule_Interdependent' --since=2022-07-14
2022-08-18T19:12:13-e55fb40-0eb56ca/openbsd-386-70

@bcmills bcmills mentioned this issue Aug 22, 2022
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@findleyr
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Unfortunately I no longer reproduce that greplogs result (we think because of a dashboard bug where there is a maximum number of go revisions per repo revision).

The new failure is different, and interesting. Somehow we're not getting a definition result after the deletion, suggesting some sort of race.

@findleyr
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Seems to no longer be reproducing, and we've rewritten a lot of this logic.

Closing.

@findleyr findleyr modified the milestones: gopls/later, gopls/v0.12.0 May 22, 2023
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FrozenDueToAge gopls Issues related to the Go language server, gopls. Testing An issue that has been verified to require only test changes, not just a test failure. Tools This label describes issues relating to any tools in the x/tools repository.
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