Re: backfillfull osd - but it is only at 68% capacity

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Hi,

I’ve seen this many times in older clusters, mostly Nautilus (can’t say much about Octopus or later). Apparently the root cause hasn’t been fixed yet, but it should resolve after the recovery has finished.

Zitat von Wyll Ingersoll <wyllys.ingersoll@xxxxxxxxxxxxxx>:

My cluster (ceph pacific) is complaining about one of the OSD being backfillfull:

[WRN] OSD_BACKFILLFULL: 1 backfillfull osd(s)

    osd.31 is backfill full

backfillfull ratios:

full_ratio 0.95

backfillfull_ratio 0.9

nearfull_ratio 0.85

ceph osd df shows:

31 hdd 5.55899 1.00000 5.6 TiB 3.8 TiB 3.7 TiB 411 MiB 6.7 GiB 1.8 TiB 68.13 0.92 83 up

So, why does the cluster think that osd.31 is backfillfull if its only at 68% capacity?


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