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playground: error rates increasing #18322

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davecheney opened this issue Dec 15, 2016 · 5 comments
Closed

playground: error rates increasing #18322

davecheney opened this issue Dec 15, 2016 · 5 comments

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@davecheney
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I'm sorry for not using the template or having concrete details, but it's hard to link to a failed invocation of the playground.

Over the last few months I've experienced an increase in failures running playground samples, "error communicating with backend server".

I've experienced this from multiple geographies including Australia, Japan, Korea, Amsterdam, London, and Paris, and others have reported similar results (again anocdotally, I do not have a count of the exact number of reports) so I believe it is not localised to my computers or location.

Obviously once then compile succeeds the result is cached and the problem masked.

Have the error rates monitored from the playground been increasing? Can something be done to reverse this trend?

@krisnova
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My experience from Denver, CO

I have never noticed an issue before.. but I could repeatably create the issue from the go playground link

With the output as
screen shot 2016-12-14 at 11 57 15 pm

@odeke-em
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Same thing from San Francisco running @kris-nova's program in #18322 (comment),
fails with the same error consistently
screen shot 2016-12-14 at 11 06 38 pm

@cznic
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cznic commented Dec 15, 2016

No problems here:

screenshot at 2016-12-15 11 59 10

@bradfitz
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@broady has reported App Engine problems.

I think the plan is to move it off App Engine.

Is that correct, @broady? What are the App Engine problems?

@bradfitz bradfitz changed the title playground error rates increasing playground: error rates increasing Dec 15, 2016
@broady
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broady commented Dec 17, 2016

The old infrastructure ("vm:true", aka Managed VMs) appears to be flaky, and we (me, and the App Engine team) can't figure out why.

It's up and running on the new infrastructure ("env:flex", aka "Flexible Beta 2") now, so should be more stable. If you see any errors at all, re-open this issue.

Relevant CLs:
https://go-review.googlesource.com/#/c/34559/
https://go-review.googlesource.com/#/c/34560/

@broady broady closed this as completed Dec 17, 2016
@golang golang locked and limited conversation to collaborators Dec 17, 2017
@rsc rsc unassigned broady Jun 23, 2022
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