prometheus: Prometheus returns HTTP 500 "seeker can't seek" error on /favicon.ico
What did you do?
- Run Prometheus (I did
docker run -it -p 9090:9090 quay.io/prometheus/prometheus:latest
) - Go to http://localhost:9090/favicon.ico
What did you expect to see?
Prometheus’ favicon.
What did you see instead? Under which circumstances?
A HTTP 500 response with Go’s seeker can't seek
error message.
System information
Darwin 21.4.0 x86_64
Prometheus version
prometheus, version 2.35.0 (branch: HEAD, revision: 6656cd29fe6ac92bab91ecec0fe162ef0f187654)
build user: root@cf6852b14d68
build date: 20220421-09:53:42
go version: go1.18.1
platform: linux/amd64
Prometheus configuration file
No response
Alertmanager version
No response
Alertmanager configuration file
No response
Logs
None relevant to the issue (not even with --log.level=debug
).
About this issue
- Original URL
- State: closed
- Created 2 years ago
- Reactions: 7
- Comments: 15 (11 by maintainers)
Commits related to this issue
- Fix handling of static files Closes #10697 Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu> — committed to roidelapluie/prometheus by roidelapluie 2 years ago
- Fix handling of static files (#10879) Closes #10697 Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu> — committed to prometheus/prometheus by roidelapluie 2 years ago
- Upgrade Prometheus/common to fix static assets Properly fix #10697 Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu> — committed to roidelapluie/prometheus by roidelapluie 2 years ago
- Upgrade Prometheus/common to fix static assets Properly fix #10697 Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu> — committed to roidelapluie/prometheus by roidelapluie 2 years ago
- Upgrade Prometheus/common to fix static assets (#10889) Properly fix #10697 Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu> — committed to prometheus/prometheus by roidelapluie 2 years ago
- Fix handling of static files (#10879) Closes #10697 Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu> — committed to roidelapluie/prometheus by roidelapluie 2 years ago
- Upgrade Prometheus/common to fix static assets Properly fix #10697 Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu> — committed to roidelapluie/prometheus by roidelapluie 2 years ago
Hello everyone, do you notice that alertmanager
0.24.0
have the same issue?Thank you, folks!
After some testing, I confirm that prometheus/common#385 fixes the issue.
https://github.com/prometheus/common/pull/385
My initial thinking: https://github.com/prometheus/common/blob/627089d3a7af73be778847aa577192b937b8d89a/server/static_file_server.go#L21
We need more extensions here. If the extension is not known, go http will seek the file to know the mimetype, which is not possible.
This
HTTP 500
on/favicon.ico
seems to appear only when running Prometheus using docker. I have a2.35.0
version running as a service and I getHTTP 200
and the actual image when I’m browsing/favicon.ico
.