hi, thanks for the replies. I guess this would also explain why every time an OSD would fail it wouldn't stay down, and add itself back again. On Tue, Sep 3, 2019 at 11:45 AM Frank Schilder <frans@dtu.dk> wrote:
"ceph osd down" will mark an OSD down once, but not shut it down. Hence, it will continue to send heartbeats and request to be marked up again after a couple of seconds. To keep it down, there are 2 ways:
- either set "ceph osd set noup", - or actually shut the OSD down.
The first version will allow the OSD to keep running so you can talk to the daemon while it is marked "down" . Be aware that the OSD will be marked "out" after a while. You might need to mark it "in" manually when you are done with maintenance.
I believe with nautilus it is possible to set the noup flag on a specific OSD, which is much safer.
Best regards,
================= Frank Schilder AIT Risø Campus Bygning 109, rum S14
________________________________________ From: ceph-users <ceph-users-bounces@lists.ceph.com> on behalf of solarflow99 <solarflow99@gmail.com> Sent: 03 September 2019 19:40:59 To: Ceph Users Subject: [ceph-users] forcing an osd down
I noticed this has happened before, this time I can't get it to stay down at all, it just keeps coming back up:
# ceph osd down osd.48 marked down osd.48.
# ceph osd tree |grep osd.48 48 3.64000 osd.48 down 0 1.00000
# ceph osd tree |grep osd.48 48 3.64000 osd.48 up 0 1.00000
health HEALTH_WARN 2 pgs backfilling 1 pgs degraded 2 pgs stuck unclean recovery 18/164089686 objects degraded (0.000%) recovery 1467405/164089686 objects misplaced (0.894%) monmap e1: 3 mons at {0= 192.168.4.10:6789/0,1=192.168.4.11:6789/0,2=192.168.4.12:6789/0< http://192.168.4.10:6789/0,1=192.168.4.11:6789/0,2=192.168.4.12:6789/0>} election epoch 210, quorum 0,1,2 0,1,2 mdsmap e166: 1/1/1 up {0=0=up:active}, 2 up:standby osdmap e25733: 45 osds: 45 up, 44 in; 2 remapped pgs
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