Hi Amit, We had a similar issue after a set_param of "max_create_count=0"
In our case re-mounting the MDT (not the OST) fixed the issue. Hope it helps. Regards, Marco On 3/3/20 8:25 PM, Kumar, Amit wrote: > Dear Lustre, > > > > Recently we had a degraded(Not failed) RAID and had to wait longer to > get compatible disk, as we had received incompatible one and it took > over a week to get the correct one back in place. > > > > During this wait I ended up disabling the OST first and then noticed > continuous IO to the OST and thought of disabling object creation on it > as well. Everything looked normal after that and once the disk was > replaced I reenabled object creation and enabled OST. Since then I > started seeing these messages on OST > > …(ofd_dev.c:1784:ofd_create_hdl()) scratch0-OST0029: unable to > precreate: rc = -52 > > And following messages on MDS > > …(osp_precreate.c:1282:osp_precreate_thread()) > scratch0-OST0029-osc-MDT0000: cannot precreate objects: rc = -116 > > …(osp_precreate.c:657:osp_precreate_send()) > scratch0-OST0029-osc-MDT0000: precreate fid [0x100290000:0x101b39a:0x0] > < local used fid [0x100290000:0x101b39a:0x0]: rc = -116 > > > > These messages don’t seem to stop. I am wondering what impact could > these errors have in long run? I have noticed I am not able to create > files on this particular OST using lfs setstripe, when I do so it gets > me an object on another OST by default. Just want to make sure this is > not causing any data loss for files the currently on them and new requests? > > We plan to upgrade to 2.12 in the summer downtime and assuming that has > a fix based on LU-9442 & LU-11186. Currently running servers on lustre > 10.4.1 over ZFS-0.7.9-1 > > > > Any help is greatly appreciated. > > > > Thank you, > Amit > > > _______________________________________________ > lustre-discuss mailing list > [email protected] > http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org > -- Marco Grossi ICHEC Systems Team _______________________________________________ lustre-discuss mailing list [email protected] http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
