net: TestLookupGoogleSRV flaky on linux-arm bot #14997
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The scaleway ARM builders have:
Which explains the error message. I guess that DNS server just sucks (is flaky). Maybe the external net tests should hard-code 8.8.8.8? |
I feel like it should be reasonable for tests to assume /etc/resolv.conf points to reliable DNS servers. What about just configuring the Scaleway ARM VMs to use "nameserver 8.8.8.8" in their /etc/resolv.conf instead of changing any tests? We should probably also warn Scaleway that their DNS servers appear unreliable. |
Done. Sent https://go-review.googlesource.com/21194 and deployed. |
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Looking at build.golang.org right now, all 4 linux-arm failures are due to TestLookupGoogleSRV flakes:
http://build.golang.org/log/18b91c9dd84cfa397ae48f92f5806eb64be62d41
http://build.golang.org/log/31c93edec34c46a3b140db465f905f2412b8ef2f
http://build.golang.org/log/afede4adbc79168d91a430d5033cbd9d962d2729
http://build.golang.org/log/e6e72e6ad1f44c4ecd87884374d964bb8497582f
This is also causing trybot flakes; e.g., I had linux-arm flakes on golang.org/cl/21231 and golang.org/cl/21232.
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