Host details dashboard in grafana is almost empty

[Yoshi Kadokawa]

Host details dashboard in Grafana shows only empty graphs due to empty Hostname.
The Hostname variable tries to list hostnames by crawling this metric, node_scrape_collector_success[0]
However, this metric is not collected, and I guess this is expected to be collected via node-exporter.

A quick workaround is to update the query to the one that is used in Telegraf Host Metrics (by-host).

Query: system_load1
Regex: .*host="([^"]+)".*$

[0] https://opendev.org/openstack/charm-ceph-dashboard/src/branch/master/src/dashboards/host-details.json#L1223

Follow-up bug:
https://bugs.launchpad.net/charm-ceph-dashboard/+bug/1982912

[Yoshi Kadokawa (yoshikadokawa)]

Attached is the bundle that reproduces the issue.

[Yoshi Kadokawa (yoshikadokawa)]

Subscribing to field-high, since the key metrics are not showing properly.

[Yoshi Kadokawa (yoshikadokawa)]

The "OSD Device details" dashboard is also having the same issue.
All panes in "Physical Device Performance" are empty due to querying metrics beginning with node_xxx, which is probably expected from node-exporter.

https://opendev.org/openstack/charm-ceph-dashboard/src/branch/master/src/dashboards/osd-device-details.json#L858

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/charm-ceph-dashboard/+/855888

[Yoshi Kadokawa (yoshikadokawa)]

https://review.opendev.org/c/openstack/charm-ceph-dashboard/+/855888

[Yoshi Kadokawa (yoshikadokawa)]

Screenshot of Host Details dashboard before the fix

[Yoshi Kadokawa (yoshikadokawa)]

Screenshot of Host Details dashboard after the fix

[Yoshi Kadokawa (yoshikadokawa)]

Screenshot of OSD Device Details dashboard before the fix

[Yoshi Kadokawa (yoshikadokawa)]

Screenshot of OSD Device Details dashboard after the fix

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/quincy
Review: https://review.opendev.org/c/openstack/charm-ceph-dashboard/+/859910

[OpenStack Infra (hudson-openstack)]

Change abandoned by "Yoshi Kadokawa <email address hidden>" on branch: stable/quincy
Review: https://review.opendev.org/c/openstack/charm-ceph-dashboard/+/859910