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In Prometheus with black box exporter for website monitoring getting http status code of 0 (zero) in the some datapoints. Any comments please

tried to Corelated "https 0" for any actaull error/issue with infra & at the same time instances dint found any issues.

Ravi Raj
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  • And what does other `probe_...` metrics show? For example, `probe_success` and `probe_duration_seconds`? – markalex Jul 15 '23 at 17:00

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From my experience, a status code 0 with an HTTP probe means that an error has occurred before the blackbox exporter has received an answer with the actual status code. Most often this is either a "connection timeout" or "connection refused" error. You can find out what it is by making a request like this:

curl 'http://my.blackbox.exporter:9115/probe?target=example.com&module=http_2xx&debug=true'

... and then checking the logs of the exporter.

anemyte
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