x/playground: serving 502 errors

[bradfitz]

I've been seeing a number of 502s on the playground just now.

(Hope it wasn't my fault!)

/cc @toothrot

[toothrot]

I'll take a look this afternoon, but it just worked for me now on mobile. There are a couple more stability issues to resolve.

[gopherbot]

Change https://golang.org/cl/228438 mentions this issue: playground: show a meaningful error on build timeout

[toothrot]

It looks like the sandbox instances are running out of memory. I'm investigating.

[toothrot]

Nevermind, that may be a red herring of Docker doing it's job.

[bradfitz]

I was getting a 502 of a GET to /. (See screenshot) That wouldn't make its way back to the gvisor world.

[toothrot]

I understand that, but when too many requests 500, the AppEngine LB will return a 502 for all requests from a particular Flex instance.

[gopherbot]

Change https://golang.org/cl/229418 mentions this issue: sandbox: update configuration to match production

[odeke-em]

I've also been getting these consistently for the past 30 minutes

[toothrot]

Thanks @odeke-em. We're aware of an ongoing issue and are still working to figure out the cause.

[toothrot]

Thanks @odeke-em. We're aware of an ongoing issue and are still working to figure out the cause.