Hi Fyodor,
Ceph Grafana Dashboards come from 2 different sources: Node Exporter
metrics and the Ceph Exporter ones (a Python module running inside
ceph-mgr).
I'd check the following steps:
1. Ceph services are running (OSD, MDS, RGW, ...), otherwise there might
be no data to feed the Ceph-specific charts.
2. The Ceph exporter is running ("ceph mgr services") and it's URL is
reachable from the Prometheus server.
3. The Prometheus server contains "ceph_.*" metrics (you may simply
visit the Prometheus Web UI and start typing "ceph": if nothing shows up it
means that there are no Ceph metrics stored).
4. In the Prometheus Web UI you may check the target section: the Ceph
target should be green.
Hope this helps you find out the issue.
Kind Regards,
Ernesto
On Mon, Jul 5, 2021 at 5:58 PM Fyodor Ustinov <ufm@xxxxxx> wrote:
> Hi!
>
> I installed fresh cluster 16.2.4
> as described in https://docs.ceph.com/en/latest/cephadm/#cephadm
>
> Everything works except for one thing: there are only graphics in the
> hosts / overall performance, (only the CPU and the network). In all other
> places the inscription "no data".
>
> What could I have done wrong?
>
> WBR,
> Fyodor.
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