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Frequent origin timeouts when behind CloudFlare #19

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domenic opened this issue Jun 24, 2021 · 0 comments
Open

Frequent origin timeouts when behind CloudFlare #19

domenic opened this issue Jun 24, 2021 · 0 comments

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@domenic
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domenic commented Jun 24, 2021 •
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PR preview often fails with 524 Origin Time-out. I believe this is because CloudFlare, which sits in front of our new build.whatwg.org, has a short-ish timeout. https://community.cloudflare.com/t/community-tip-fixing-error-524-a-timeout-occurred/42342 implies it's 100 seconds.

Potential solutions:

  • Upgrade to a beefier machine so builds finish faster. (However, the dashboard shows about 30% CPU usage and 20% RAM usage, so I'm not sure this is the problem...)
  • Send a status code right away and send the body later. Downside: we'd no longer be able to give an accurate failure vs. not-failure status code, so we break pure HTTP semantics.
  • Ask PR preview to retry on 524 errors.

Other ideas also welcome.
domenic added a commit that referenced this issue Jun 24, 2021
@domenic
Add some logging
b05796c 
The timestamps accompanying these should be helpful for diagnosing #19.
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