On Tue, Nov 29, 2022 at 1:42 PM Frank Schilder <frans@xxxxxx> wrote: > > Hi Venky. > > > You most likely ran into performance issues with distributed ephemeral > > pins with octopus. It'd be nice to try out one of the latest releases > > for this. > > I run into the problem that distributed ephemeral pinning seems not actually implemented in octopus. This mode didn't pin anything, see also the recent conversation with Patrick: Distributed ephemeral pins used to distribute inodes under a directory mongst MDSs which had scalability issues due to the sheer number of subtrees. This was changed to distribute dirfrags and I think those changes were not in octopus. > > https://lists.ceph.io/hyperkitty/list/ceph-users@xxxxxxx/thread/YEB34F5SREAOOMATOKC6NO3G2GVCSOOZ > > I sent him a couple of dumps, but am not sure if he is doing anything with it. I wrote a small script to do the distributed pinning by hand and it solved all sorts of problems. Distributing dirfrags solved a lot of scalability issues and those changes are available in pacific and beyond. We aren't backporting to octopus anymore, so the options are limited. > > Best regards, > ================= > Frank Schilder > AIT Risø Campus > Bygning 109, rum S14 > -- Cheers, Venky _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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