Hi, What is your "allocsize"? If it's default you're allocating 64KiB per file. If you have lots of small files (check file size distribution) you may need to use a smaller allocsize (eg. 4KiB).
Best, On Tue, Oct 25, 2016 at 4:37 AM, Василий Ангапов <[email protected]> wrote: > Hello, > > I got Ceph 10.2.1 cluster with 10 nodes, each having 29 * 6TB OSDs. > Yesterday I found that 3 OSDs were down and out with 89% space > utilization. > In logs there is: > 2016-10-24 22:36:37.599253 7f8309c5e800 0 ceph version 10.2.1 > (3a66dd4f30852819c1bdaa8ec23c795d4ad77269), process ceph-osd, pid > 2602081 > 2016-10-24 22:36:37.600129 7f8309c5e800 0 pidfile_write: ignore empty > --pid-file > 2016-10-24 22:36:37.635769 7f8309c5e800 0 > filestore(/var/lib/ceph/osd/ceph-123) backend xfs (magic 0x58465342) > 2016-10-24 22:36:37.635805 7f8309c5e800 -1 > genericfilestorebackend(/var/lib/ceph/osd/ceph-123) detect_features: > unable to create /var/lib/ceph/osd/ceph-123/fiemap_test: (28) No space > left on device > 2016-10-24 22:36:37.635814 7f8309c5e800 -1 > filestore(/var/lib/ceph/osd/ceph-123) _detect_fs: detect_features > error: (28) No space left on device > 2016-10-24 22:36:37.635818 7f8309c5e800 -1 > filestore(/var/lib/ceph/osd/ceph-123) FileStore::mount: error in > _detect_fs: (28) No space left on device > 2016-10-24 22:36:37.635824 7f8309c5e800 -1 osd.123 0 OSD:init: unable > to mount object store > 2016-10-24 22:36:37.635827 7f8309c5e800 -1 ESC[0;31m ** ERROR: osd > init failed: (28) No space left on deviceESC[0m > > root@ed-ds-c178:[/var/lib/ceph/osd/ceph-123]:$ df -h > /var/lib/ceph/osd/ceph-123 > Filesystem Size Used Avail Use% Mounted on > /dev/mapper/disk23p1 5.5T 4.9T 651G 89% /var/lib/ceph/osd/ceph-123 > > root@ed-ds-c178:[/var/lib/ceph/osd/ceph-123]:$ df -i > /var/lib/ceph/osd/ceph-123 > Filesystem Inodes IUsed IFree IUse% Mounted on > /dev/mapper/disk23p1 146513024 22074752 124438272 16% > /var/lib/ceph/osd/ceph-123 > > root@ed-ds-c178:[/var/lib/ceph/osd/ceph-123]:$ touch 123 > touch: cannot touch ‘123’: No space left on device > > root@ed-ds-c178:[/var/lib/ceph/osd/ceph-123]:$ grep ceph-123 /proc/mounts > /dev/mapper/disk23p1 /var/lib/ceph/osd/ceph-123 xfs > rw,noatime,attr2,inode64,noquota 0 0 > > The same situation is for all three down OSDs. OSD can be unmounted > and mounted without problem: > root@ed-ds-c178:[~]:$ umount /var/lib/ceph/osd/ceph-123 > root@ed-ds-c178:[~]:$ > root@ed-ds-c178:[~]:$ mount /var/lib/ceph/osd/ceph-123 > root@ed-ds-c178:[~]:$ touch /var/lib/ceph/osd/ceph-123/123 > touch: cannot touch ‘/var/lib/ceph/osd/ceph-123/123’: No space left on > device > > xfs_repair gives no error for FS. > > Kernel is > root@ed-ds-c178:[~]:$ uname -r > 4.7.0-1.el7.wg.x86_64 > > What else can I do to rectify that situation? > _______________________________________________ > ceph-users mailing list > [email protected] > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Łukasz Jagiełło lukasz<at>jagiello<dot>org
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