ensure_goma can take up to 9 minutes to download 20 MB |
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Issue descriptionhttps://build.chromium.org/p/chromium/builders/Linux%20x64/builds/20342/steps/ensure_goma.ensure_installed/logs/stdio > 9 minutes to download 20 MB! That's over 10% of the time the full build needed.
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Jun 6 2016
dba, are we still short on nat ports? I remember we had this issue a couple of weeks ago
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Jun 6 2016
It fetches directly from Google Storage (starting from line "[P14042 12:59:20.458 storage.go:214 I] cipd: about to fetch 19.9 Mb"). :( Not sure how to workaround that.
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Jun 6 2016
(Also, NAT port shortage would have resulted in a failure to establish a connection, not slow download).
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Jun 6 2016
Downloading clang packages from Google Storage using a https url ('https://commondatastorage.googleapis.com/chromium-browser-clang' -- https://cs.chromium.org/chromium/src/tools/clang/scripts/update.py?q=update.py+file:clang&sq=package:chromium&dr=C&l=407) using python's standard urllib2 is fast -- maybe your storage config has something that makes it slow?
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Jun 6 2016
It's probably compounded by the fact we've been maxing out or uplinks for the past 2-3 weeks. We have maintenance scheduled for tomorrow to work on upgrading the link.
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Jun 6 2016
cipd is fast in vast majority of cases too (it's the first time I see it reported as slow). Here how it works usually: https://build.chromium.org/p/chromium/builders/Linux%20x64/builds/20422/steps/ensure_goma.ensure_installed/logs/stdio It seems to happening right now too. I'll SSH on the machine and investigate.
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Jun 6 2016
It's an issues with machine and/or Golo. I did "wget -O /dev/null http://speedtest.wdc01.softlayer.com/downloads/test10.zip" and it downloads the file at whooping 30 Kb/s. Modem speed basically :-/ (So dba@ conclusion seems to be correct). Though I also filed https://bugs.chromium.org/p/chromium/issues/detail?id=617686, since it shouldn't be downloading anything at all.
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Jun 7 2016
PCR completed. ensure_goma step is fast again https://build.chromium.org/p/chromium/builders/Linux%20x64/builds/20471/steps/ensure_goma |
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Comment 1 by ukai@chromium.org
, Jun 6 2016