IIRC that results in a fair amount of space being used on each of your OSDs and your mon DB. The default IIRC used to be much larger than it is now. It's a tradeoff. It kinda sounds to me like the OSD in question has probably been down for some time and was unexpected resurrected by your recent activity. Unless you have incomplete PGs, honestly I would just zap/purge it and redeploy, unless this is more than one or two.
On Oct 24, 2025, at 2:21 PM, Huseyin Cotuk <hcotuk@gmail.com> wrote:
Hi again,
By the way, I ran into a similar problem a few years ago and I have set the following config parameter to 5000 some time ago.
osd_map_cache_size <https://docs.ceph.com/en/reef/rados/configuration/osd-config-ref/#confval-osd_map_cache_size> The number of OSD maps to keep cached.
type : int default : 50 I could not find any other related config parameters.
BR, Huseyin Cotuk hcotuk@gmail.com
On 24 Oct 2025, at 21:14, Huseyin Cotuk <hcotuk@gmail.com> wrote:
Hi Eugen,
I have already tried as the below method I stated before. I got the current osdmap and tried to set-osdmap via ceph-object-store-tool. But the command failed with error:
ceph osd getmap 72555 > /tmp/osd_map_72555 CEPH_ARGS="--bluestore-ignore-data-csum" ceph-objectstore-tool --data-path /var/lib/ceph/osd/ceph-11/ --op set-osdmap --file /tmp/osd_map_72555
osdmap (#-1:9c8e9ef2:::osdmap.72555:0#) does not exist.
https://www.mail-archive.com/ceph-users@ceph.io/msg11545.html
BR, Huseyin hcotuk@gmail.com
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