Hello, > Hi Yoann, thanks for your response. > Here are the results of the commands. > > root@pf-us1-dfs2:/var/log/ceph# ceph osd df > ID CLASS WEIGHT REWEIGHT SIZE USE AVAIL %USE VAR PGS > 0 hdd 7.27739 1.00000 7.3 TiB 6.7 TiB 571 GiB 92.33 1.74 310 > 5 hdd 7.27739 1.00000 7.3 TiB 5.6 TiB 1.7 TiB 77.18 1.45 271 > 6 hdd 7.27739 1.00000 7.3 TiB 609 GiB 6.7 TiB 8.17 0.15 49 > 8 hdd 7.27739 1.00000 7.3 TiB 2.5 GiB 7.3 TiB 0.03 0 42 > 1 hdd 7.27739 1.00000 7.3 TiB 5.6 TiB 1.7 TiB 77.28 1.45 285 > 3 hdd 7.27739 1.00000 7.3 TiB 6.9 TiB 371 GiB 95.02 1.79 296 > 7 hdd 7.27739 1.00000 7.3 TiB 360 GiB 6.9 TiB 4.84 0.09 53 > 9 hdd 7.27739 1.00000 7.3 TiB 4.1 GiB 7.3 TiB 0.06 0.00 38 > 2 hdd 7.27739 1.00000 7.3 TiB 6.7 TiB 576 GiB 92.27 1.74 321 > 4 hdd 7.27739 1.00000 7.3 TiB 6.1 TiB 1.2 TiB 84.10 1.58 351 > TOTAL 73 TiB 39 TiB 34 TiB 53.13 > MIN/MAX VAR: 0/1.79 STDDEV: 41.15 It looks like you don't have a good balance between your OSD, what is your failure domain ? could you provide your crush map http://docs.ceph.com/docs/luminous/rados/operations/crush-map/ ceph osd crush tree ceph osd crush rule ls ceph osd crush rule dump > root@pf-us1-dfs2:/var/log/ceph# ceph osd pool ls detail > pool 1 'poolcephfs' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 128 pgp_num 128 last_change 471 fla > gs hashpspool,full stripe_width 0 > pool 2 'cephfs_data' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 256 pgp_num 256 last_change 471 lf > or 0/439 flags hashpspool,full stripe_width 0 application cephfs > pool 3 'cephfs_metadata' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 256 pgp_num 256 last_change 47 > 1 lfor 0/448 flags hashpspool,full stripe_width 0 application cephfs > pool 4 '.rgw.root' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 8 pgp_num 8 last_change 471 flags ha > shpspool,full stripe_width 0 application rgw > pool 5 'default.rgw.control' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 8 pgp_num 8 last_change 47 > 1 flags hashpspool,full stripe_width 0 application rgw > pool 6 'default.rgw.meta' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 8 pgp_num 8 last_change 471 f > lags hashpspool,full stripe_width 0 application rgw > pool 7 'default.rgw.log' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 8 pgp_num 8 last_change 471 fl > ags hashpspool,full stripe_width 0 application rgw You may need to increase the pg num for cephfs_data pool. But before, you must understand what is the impact https://ceph.com/pgcalc/ you can't decrease pg_num, if it set too high you may have trouble in your cluster. > root@pf-us1-dfs2:/var/log/ceph# ceph osd tree > ID CLASS WEIGHT TYPE NAME STATUS REWEIGHT PRI-AFF > -1 72.77390 root default > -3 29.10956 host pf-us1-dfs1 > 0 hdd 7.27739 osd.0 up 1.00000 1.00000 > 5 hdd 7.27739 osd.5 up 1.00000 1.00000 > 6 hdd 7.27739 osd.6 up 1.00000 1.00000 > 8 hdd 7.27739 osd.8 up 1.00000 1.00000 > -5 29.10956 host pf-us1-dfs2 > 1 hdd 7.27739 osd.1 up 1.00000 1.00000 > 3 hdd 7.27739 osd.3 up 1.00000 1.00000 > 7 hdd 7.27739 osd.7 up 1.00000 1.00000 > 9 hdd 7.27739 osd.9 up 1.00000 1.00000 > -7 14.55478 host pf-us1-dfs3 > 2 hdd 7.27739 osd.2 up 1.00000 1.00000 > 4 hdd 7.27739 osd.4 up 1.00000 1.00000 You really should add 2 disks to pf-us1-dfs3, currently, the cluster tries to balance data between the 3 hosts, (replica 3, failure domain set to 'host' I guess). Each host will store 1/3 of data (1 replica) pf-us1-dfs3 only have half of the 2 others, you won't be able to put more than 3x (osd.2+osd.4) even though there are free spaces on others OSDs. Best regards, Yoann > On Tue, Jan 8, 2019 at 10:36 AM Yoann Moulin <yoann.moulin@xxxxxxx <mailto:yoann.moulin@xxxxxxx>> wrote: > > Hello, > > > Hi guys, I need your help. > > I'm new with Cephfs and we started using it as file storage. > > Today we are getting no space left on device but I'm seeing that we have plenty space on the filesystem. > > Filesystem Size Used Avail Use% Mounted on > > 192.168.51.8,192.168.51.6,192.168.51.118:6789:/pagefreezer/smhosts 73T 39T 35T 54% /mnt/cephfs > > > > We have 35TB of disk space. I've added 2 additional OSD disks with 7TB each but I'm getting the error "No space left on device" every time > that > > I want to add a new file. > > After adding the 2 additional OSD disks I'm seeing that the load is beign distributed among the cluster. > > Please I need your help. > > Could you give us the output of > > ceph osd df > ceph osd pool ls detail > ceph osd tree > > Best regards, > > -- > Yoann Moulin > EPFL IC-IT > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx <mailto:ceph-users@xxxxxxxxxxxxxx> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Yoann Moulin EPFL IC-IT _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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