Re: Throughput metrics missing iwhen updating Ceph Quincy to Reef

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I got those metrics back after setting:

reef01:~ # ceph config set mgr mgr/prometheus/exclude_perf_counters false

reef01:~ # curl http://localhost:9283/metrics | grep ceph_osd_op | head
% Total % Received % Xferd Average Speed Time Time Time Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  324k  100  324k    0     0  72.5M      0 --:--:-- --:--:-- --:--:-- 79.1M
# HELP ceph_osd_op Client operations
# TYPE ceph_osd_op counter
ceph_osd_op{ceph_daemon="osd.0"} 139650.0
ceph_osd_op{ceph_daemon="osd.11"} 9711090.0
ceph_osd_op{ceph_daemon="osd.2"} 3864.0
ceph_osd_op{ceph_daemon="osd.1"} 25.0
ceph_osd_op{ceph_daemon="osd.4"} 543.0
ceph_osd_op{ceph_daemon="osd.5"} 12192.0
ceph_osd_op{ceph_daemon="osd.3"} 3661521.0
ceph_osd_op{ceph_daemon="osd.6"} 2030.0

I found the option in the docs [1], but the same section is in the quincy docs as well, although there's no such option in my quincy cluster, maybe that's why it still exports those performance counters in my quincy cluster:

quincy-1:~ # ceph config get mgr mgr/prometheus/exclude_perf_counters
Error ENOENT: unrecognized key 'mgr/prometheus/exclude_perf_counters'

Anyway, this should bring back the metrics the "legacy" way (I guess). Apparently, the ceph-exporter daemon is now required on your hosts to collect those metrics. After adding the ceph-exporter service (ceph orch apply ceph-exporter) and setting mgr/prometheus/exclude_perf_counters back to "true" I see that there are "ceph_osd_op" metrics defined but no values yet. Apparently, I'm still missing something, I'll check tomorrow. But this could/should be in the upgrade docs IMO.



Zitat von Martin <ceph@xxxxxxxxxxxxx>:


Confirmed that this happens to me as well.
After upgrading from 18.2.0 to 18.2.1 OSD metrics like: ceph_osd_op_* are missing from ceph-mgr.

The Grafana dashboard also doesn't display all graphs correctly.

ceph-dashboard/Ceph - Cluster : Capacity used, Cluster I/O, OSD Capacity Utilization, PGs per OSD....

curl http://localhost:9283/metrics | grep -i ceph_osd_op
  % Total    % Received % Xferd  Average Speed   Time Time     Time  Current
                                 Dload  Upload   Total Spent    Left  Speed
100 38317  100 38317    0     0   9.8M      0 --:--:-- --:--:-- --:--:-- 12.1M

Before the upgrading to reef 18.2.1 I could get all the metrics.


On 18/01/2024 12:32, Jose Vicente wrote:
After upgrading from Quincy to Reef the ceph-mgr daemon is not throwing some throughput OSD metrics like: ceph_osd_op_*
curl http://localhost:9283/metrics | grep -i ceph_osd_op
  % Total    % Received % Xferd  Average Speed   Time  Time     Time  Current
                                 Dload  Upload   Total Spent    Left  Speed
100  295k  100  295k    0     0   144M      0 --:--:-- --:--:-- --:--:--  144M
However I can get other metrics like:
# curl http://localhost:9283/metrics | grep -i ceph_osd_apply
# HELP ceph_osd_apply_latency_ms OSD stat apply_latency_ms
# TYPE ceph_osd_apply_latency_ms gauge
ceph_osd_apply_latency_ms{ceph_daemon="osd.275"} 152.0
ceph_osd_apply_latency_ms{ceph_daemon="osd.274"} 102.0
Before the upgrading to reef (from quincy) I I could get all the metrics. MGR module prometheus is enabled.
Rocky Linux release 8.8 (Green Obsidian)
ceph version 18.2.1 (7fe91d5d5842e04be3b4f514d6dd990c54b29c76) reef (stable)
# netstat -nap | grep 9283
tcp        0      0      ESTABLISHED 3561/prometheus tcp6       0      0 :::9283                 :::*      LISTEN      804985/ceph-mgr
Jose C.

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