As long as the cluster is no healthy, the OSD will require much more space, depending on the cluster size and other factors. Yes this is somewhat normal. -- Martin Verges Managing director Mobile: +49 174 9335695 E-Mail: martin.verges@croit.io Chat: https://t.me/MartinVerges croit GmbH, Freseniusstr. 31h, 81247 Munich CEO: Martin Verges - VAT-ID: DE310638492 Com. register: Amtsgericht Munich HRB 231263 Web: https://croit.io YouTube: https://goo.gl/PGE1Bx Am Fr., 2. Okt. 2020 um 15:46 Uhr schrieb Andreas John <aj@net-lab.net>:
Hello,
we observed massive and sudden growth of the mon db size on disk, from 50MB to 20GB+ (GB!) and thus reaching 100% disk usage on the mountpoint.
As far as we can see, it happens if we set "noout" for a node reboot: After the node and the OSDs come back it looks like the mon db size increased drastically.
We have 14.2.11, 10 OSD @ 2TB and cephfs in use.
Is this a known issue? Should we avoid noout?
TIA,
derjohn
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