Re: 2 pools - 513 pgs 100.00% pgs unknown - working cluster

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First thing I would try is a mgr failover.

Zitat von Eneko Lacunza <elacunza@xxxxxxxxx>:

Hi all,

I'm trying to diagnose a issue in a tiny cluster that is showing the following status:


root@proxmox3:~# ceph -s
  cluster:
    id:     80d78bb2-6be6-4dff-b41d-60d52e650016
    health: HEALTH_WARN
            1/3 mons down, quorum 0,proxmox3
            Reduced data availability: 513 pgs inactive

  services:
    mon: 3 daemons, quorum 0,proxmox3 (age 3h), out of quorum: 1
    mgr: proxmox3(active, since 16m), standbys: proxmox2
    osd: 12 osds: 8 up (since 3h), 8 in (since 3h)

  task status:

  data:
    pools:   2 pools, 513 pgs
    objects: 0 objects, 0 B
    usage:   0 B used, 0 B / 0 B avail
    pgs:     100.000% pgs unknown
             513 unknown

Cluster has 3 nodes, each with 4 OSDs. One of the nodes was offline for 3 weeks, and when bringing it back online VMs stalled on disk I/O.

Node has been shut down again and we're trying to understand the status, an then will try ti diagnose issue with the troubled node.

Currently VMs are working and can read RBD volumes, but there seems to be some kind of mgr issue (?) with stats.

There is no firewall on the nodes nor between the 3 nodes (all on the same switch). Ping is working for both CEph public and private networks.

MGR log show this continuosly:
2022-05-26T13:49:45.603+0200 7fb78ba3f700  0 auth: could not find secret_id=1892 2022-05-26T13:49:45.603+0200 7fb78ba3f700  0 cephx: verify_authorizer could not get service secret for service mgr secret_id=1892 2022-05-26T13:49:45.983+0200 7fb77a18d700  1 mgr.server send_report Not sending PG status to monitor yet, waiting for OSDs 2022-05-26T13:49:47.983+0200 7fb77a18d700  1 mgr.server send_report Not sending PG status to monitor yet, waiting for OSDs 2022-05-26T13:49:49.983+0200 7fb77a18d700  1 mgr.server send_report Not sending PG status to monitor yet, waiting for OSDs 2022-05-26T13:49:51.983+0200 7fb77a18d700  1 mgr.server send_report Giving up on OSDs that haven't reported yet, sending potentially incomplete PG state to m
on
2022-05-26T13:49:51.983+0200 7fb77a18d700  0 log_channel(cluster) log [DBG] : pgmap v3: 513 pgs: 513 unknown; 0 B data, 0 B used, 0 B / 0 B avail 2022-05-26T13:49:53.983+0200 7fb77a18d700  0 log_channel(cluster) log [DBG] : pgmap v4: 513 pgs: 513 unknown; 0 B data, 0 B used, 0 B / 0 B avail 2022-05-26T13:49:55.983+0200 7fb77a18d700  0 log_channel(cluster) log [DBG] : pgmap v5: 513 pgs: 513 unknown; 0 B data, 0 B used, 0 B / 0 B avail 2022-05-26T13:49:57.987+0200 7fb77a18d700  0 log_channel(cluster) log [DBG] : pgmap v6: 513 pgs: 513 unknown; 0 B data, 0 B used, 0 B / 0 B avail 2022-05-26T13:49:58.403+0200 7fb78ba3f700  0 auth: could not find secret_id=1892 2022-05-26T13:49:58.403+0200 7fb78ba3f700  0 cephx: verify_authorizer could not get service secret for service mgr secret_id=1892

So it seems that mgr is unable to contact OSDs for stats, then reports bad info to mon.

I see the following OSD ports open:
tcp        0      0 192.168.134.102:6800    0.0.0.0:* LISTEN      2268/ceph-osd tcp        0      0 192.168.133.102:6800    0.0.0.0:* LISTEN      2268/ceph-osd tcp        0      0 192.168.134.102:6801    0.0.0.0:* LISTEN      2268/ceph-osd tcp        0      0 192.168.133.102:6801    0.0.0.0:* LISTEN      2268/ceph-osd tcp        0      0 192.168.134.102:6802    0.0.0.0:* LISTEN      2268/ceph-osd tcp        0      0 192.168.133.102:6802    0.0.0.0:* LISTEN      2268/ceph-osd tcp        0      0 192.168.134.102:6803    0.0.0.0:* LISTEN      2268/ceph-osd tcp        0      0 192.168.133.102:6803    0.0.0.0:* LISTEN      2268/ceph-osd tcp        0      0 192.168.134.102:6804    0.0.0.0:* LISTEN      2271/ceph-osd tcp        0      0 192.168.133.102:6804    0.0.0.0:* LISTEN      2271/ceph-osd tcp        0      0 192.168.134.102:6805    0.0.0.0:* LISTEN      2271/ceph-osd tcp        0      0 192.168.133.102:6805    0.0.0.0:* LISTEN      2271/ceph-osd tcp        0      0 192.168.134.102:6806    0.0.0.0:* LISTEN      2271/ceph-osd tcp        0      0 192.168.133.102:6806    0.0.0.0:* LISTEN      2271/ceph-osd tcp        0      0 192.168.134.102:6807    0.0.0.0:* LISTEN      2271/ceph-osd tcp        0      0 192.168.133.102:6807    0.0.0.0:* LISTEN      2271/ceph-osd tcp        0      0 192.168.134.102:6808    0.0.0.0:* LISTEN      2267/ceph-osd tcp        0      0 192.168.133.102:6808    0.0.0.0:* LISTEN      2267/ceph-osd tcp        0      0 192.168.134.102:6809    0.0.0.0:* LISTEN      2267/ceph-osd tcp        0      0 192.168.133.102:6809    0.0.0.0:* LISTEN      2267/ceph-osd tcp        0      0 192.168.134.102:6810    0.0.0.0:* LISTEN      2267/ceph-osd tcp        0      0 192.168.133.102:6810    0.0.0.0:* LISTEN      2267/ceph-osd tcp        0      0 192.168.134.102:6811    0.0.0.0:* LISTEN      2267/ceph-osd tcp        0      0 192.168.133.102:6811    0.0.0.0:* LISTEN      2267/ceph-osd tcp        0      0 192.168.134.102:6812    0.0.0.0:* LISTEN      2274/ceph-osd tcp        0      0 192.168.133.102:6812    0.0.0.0:* LISTEN      2274/ceph-osd tcp        0      0 192.168.134.102:6813    0.0.0.0:* LISTEN      2274/ceph-osd tcp        0      0 192.168.133.102:6813    0.0.0.0:* LISTEN      2274/ceph-osd tcp        0      0 192.168.134.102:6814    0.0.0.0:* LISTEN      2274/ceph-osd tcp        0      0 192.168.133.102:6814    0.0.0.0:* LISTEN      2274/ceph-osd tcp        0      0 192.168.134.102:6815    0.0.0.0:* LISTEN      2274/ceph-osd tcp        0      0 192.168.133.102:6815    0.0.0.0:* LISTEN      2274/ceph-osd

Any idea what can I check/what's going on?

Thanks

Eneko Lacunza
Zuzendari teknikoa | Director técnico
Binovo IT Human Project

Tel. +34 943 569 206 |https://www.binovo.es
Astigarragako Bidea, 2 - 2º izda. Oficina 10-11, 20180 Oiartzun

https://www.youtube.com/user/CANALBINOVO
https://www.linkedin.com/company/37269706/
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