I’m using a custom client and I’ve gotten this error about timeouts a few times recently. Has anybody seen this error before? It looks like the message gets cut off by the logging service so I was hoping that somebody has the whole message starting from
Sep 21 11:11:37 service: unexpected error generating cert for [example.com], got failed challenge for host "example.com" with error LE returned an invalid response for the challenge, problem: type: urn:acme:error:connection, title: , status: 400, detail: Fetching http://example.com/.well-known/acme-challenge/XXXXXXXX: Timeout, instance:
never mind the error isn’t cut off there’s just no instance field
Does anybody know what the timeout is set to?
Here’s a new log line with quotes:
Sep 21 16:08:08 unexpected error generating cert for [002067.example.com], got failed challenge for host "002067.example.com" with error LE returned an invalid response for the challenge, problem: type: "urn:acme:error:connection", title: "", status: 400, detail: "Fetching http://002067.example.com/.well-known/acme-challenge/XXXXXXXX: Timeout", instance: ""
Can you provide me with more information I can use to identify some of the failing requests?
Your ACME account ID and some of the domain(s) that you experience this timeout validating would be great. An email or a DM would be fine if you don’t want to share the details in the forum.
I found a lock that serialized our responses to challenges. Under load this blocked some of our responses for more than the five second timeout.
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