Hi Hervé, On 01.06.21 14:00, Hervé Ballans wrote:
I'm aware with your points, and maybe I was not really clear in my previous email (written in a hurry!) The problematic pool is the metadata one. All its OSDs (x3) are full. The associated data pool is OK and no OSD is full on the data pool.
Are you saying that you only have 3 OSD for your metadata pool, which are the full ones? Alright, then you can - at least for this specific issue - disregard my previous comment.
The problem is that metadata pool suddenly increases a lot and continiously from 3% to 100% in 5 hours (from 5 am to 10 am, then crash)
724 GiB stored in the metadata pool with only 11 TiB cephfs data size does seem huge at first glance. For reference, I have about 160 TiB cephfs data with only 31 GiB stored in the metadata pool.
I don't have an explanation for this behaviour, as I am relatively new to Ceph. Maybe the list can chime in?
And we don't understand the reason, since there was no specific activities on the data pool ? This cluster runs perfectly with the current configuration since many years.
Probably unrelated to your issues: I noticed that your STORED and USED column in `ceph df` output are identical. Is that because of Nautilus (I myself am running Octopus, where USED is the expected multiple of STORED depending on replication factor / EC configuration in the pool) or are you running a specific configuration that might cause that?
Cheers Sebastian _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
