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containers / prometheus-podman-exporter

Prometheus exporter for podman environments exposing containers, pods, images, volumes and networks information.

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Recurring error in logs "error gathering metrics....was collected before with the same name and label values"

firecat53 opened this issue · comments

commented

Describe the bug
Every 30 seconds in the logs I get the following error:

Aug 21 08:21:50 lvps podman-exporter_run[51905]: ts=2022-08-21T15:21:50.073Z caller=stdlib.go:105 level=error msg="error gathering metrics: 2 error(s) occurred:\n* [from Gatherer #2] collected metric \"podman_image_size\" { label:<name:\"id\" value:\"9c6f07244728\" > gauge:<value:5.830724e+06 > } was collected before with the same name and label values\n* [from Gatherer #2] collected metric \"podman_image_created_seconds\" { label:<name:\"id\" value:\"9c6f07244728\" > gauge:<value:1.660065593e+09 > } was collected before with the same name and label values"
Aug 21 08:21:50 lvps podman[51871]: ts=2022-08-21T15:21:50.073Z caller=stdlib.go:105 level=error msg="error gathering metrics: 2 error(s) occurred:\n* [from Gatherer #2] collected metric \"podman_image_size\" { label:<name:\"id\" value:\"9c6f07244728\" > gauge:<value:5.830724e+06 > } was collected before with the same name and label values\n* [from Gatherer #2] collected metric \"podman_image_created_seconds\" { label:<name:\"id\" value:\"9c6f07244728\" > gauge:<value:1.660065593e+09 > } was collected before with the same name and label values"

To Reproduce

Run prometheus-podman-exporter with --collector.enable-all. Have two identical images with different tags:

[ansible@lvps ~]$ podman images | grep 9c6f072
docker.io/library/alpine     3.16          9c6f07244728  11 days ago        5.83 MB
docker.io/library/alpine     latest        9c6f07244728  11 days ago        5.83 MB

Removing one of the images makes the error go away.

Expected behavior

I wouldn't expect error messages every 30 seconds in the logs for the above duplicate images. I believe it's not abnormal to have a latest tag that matches a numbered tag for a given image.

Desktop (please complete the following information):

  • OS CentOS Stream 9
  • Podman Version 4.1.1

Thanks!

commented

Hi @firecat53
Thanks for reaching, #27 will fix the issue.

Regards