Ceph Dashboard Charm

Host details dashboard in grafana is almost empty

Bug #1982910 reported by Yoshi Kadokawa on 2022-07-27

This bug affects 3 people

Affects		Status	Importance	Assigned to	Milestone
	Ceph Dashboard Charm	In Progress	Undecided	Yoshi Kadokawa

Bug Description

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

See original description

Revision history for this message

Yoshi Kadokawa (yoshikadokawa) wrote on 2022-07-27:

Screen Shot 2022-07-27 at 13.19.13.png Edit (184.0 KiB, image/png)

Revision history for this message

Yoshi Kadokawa (yoshikadokawa) wrote on 2022-07-27:

ceph-with-dashboard.yaml Edit (5.4 KiB, text/plain)

Attached is the bundle that reproduces the issue.

Revision history for this message

Yoshi Kadokawa (yoshikadokawa) wrote on 2022-07-27:

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

Nobuto Murata (nobuto) on 2022-07-27

description:

updated

Revision history for this message

Yoshi Kadokawa (yoshikadokawa) wrote on 2022-08-01:

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