On 5/12/22 14:31, ronny.lippold wrote: > many thanks, we will check the slides ... are looking great > > >>> >>> ok, you mean, that the growing came, cause of replication is to slow? >>> strange ... i thought our cluster is not so big ... but ok. >>> so, we cannot use journal ... >>> maybe some else have same result? >> >> If you want a bit more details on this you can check my slides here: >> https://codimd.web.cern.ch/p/-qWD2Y0S9#/. >> >> >> Hmmm I think there are some plan to have a way to spread the snapshots >> in the provided interval in Reef (and not take every snapshots at once) >> but that's unfortunately not here today... The timing thing is a bit >> weird but I am not an expert on RBD snapshots implication in general... >> Maybe you can try to reproduce by taking snapshot by hand with `rbd >> mirror image snapshot` on some of your images, maybe that's something >> related to really big images? Or that there was a lot of write since >> the >> last snapshot? >> > > yes right, i was alos thinking of this ... > i would like to find something, to debug the problem. > problems after 50days ... i do not understand this > > which way are you actually going? do you have a replication? We are going towards mirror snapshots, but we didn't advertise internally so far and we won't enable it on every images; it would only be for new volumes if people want explicitly that feature. So we are probably not going to hit these performance issues that you suffer for quite some time and the scope of it should be limited... -- Arthur Outhenin-Chalandre _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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