Hi!
Thanks a lot for your help!
The problem turned out to be that the container with prometheus does not use the hosts file. DNS only. And I have all servers were described only in hosts.
----- Original Message -----
> From: "Ernesto Puerta" <epuertat@xxxxxxxxxx>
> To: "Fyodor Ustinov" <ufm@xxxxxx>
> Cc: "ceph-users" <ceph-users@xxxxxxx>
> Sent: Monday, 5 July, 2021 20:59:24
> Subject: Re: Graphics in ceph dashboard
> 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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