Thanks again Cary, Yes, once all the backfilling was done I was back to a Healthy cluster. I moved on to the same steps for the next server in the cluster, it is backfilling now. Once that is done I will do the last server in the cluster, and then I think I am done! Just checking on one thing. I get these messages when running this command. I assume this is OK, right? root@node-54:~# ceph-osd -i 4 --mkfs --mkkey --osd-uuid 25c21708-f756-4593-bc9e-c5506622cf07 2017-12-15 17:28:22.849534 7fd2f9e928c0 -1 journal FileJournal::_open: disabling aio for non-block journal. Use journal_force_aio to force use of aio anyway 2017-12-15 17:28:22.855838 7fd2f9e928c0 -1 journal FileJournal::_open: disabling aio for non-block journal. Use journal_force_aio to force use of aio anyway 2017-12-15 17:28:22.856444 7fd2f9e928c0 -1 filestore(/var/lib/ceph/osd/ceph-4) could not find #-1:7b3f43c4:::osd_superblock:0# in index: (2) No such file or directory 2017-12-15 17:28:22.893443 7fd2f9e928c0 -1 created object store /var/lib/ceph/osd/ceph-4 for osd.4 fsid 2b9f7957-d0db-481e-923e-89972f6c594f 2017-12-15 17:28:22.893484 7fd2f9e928c0 -1 auth: error reading file: /var/lib/ceph/osd/ceph-4/keyring: can't open /var/lib/ceph/osd/ceph-4/keyring: (2) No such file or directory 2017-12-15 17:28:22.893662 7fd2f9e928c0 -1 created new key in keyring /var/lib/ceph/osd/ceph-4/keyring thanks -----Original Message----- From: Cary [mailto:dynamic.cary@xxxxxxxxx] Sent: Thursday, December 14, 2017 7:13 PM To: James Okken Cc: ceph-users@xxxxxxxxxxxxxx Subject: Re: add hard drives to 3 CEPH servers (3 server cluster) James, Usually once the misplaced data has balanced out the cluster should reach a healthy state. If you run a "ceph health detail" Ceph will show you some more detail about what is happening. Is Ceph still recovering, or has it stalled? has the "objects misplaced (62.511%" changed to a lower %? Cary -Dynamic On Thu, Dec 14, 2017 at 10:52 PM, James Okken <James.Okken@xxxxxxxxxxxx> wrote: > Thanks Cary! > > Your directions worked on my first sever. (once I found the missing carriage return in your list of commands, the email musta messed it up. > > For anyone else: > chown -R ceph:ceph /var/lib/ceph/osd/ceph-4 ceph auth add osd.4 osd > 'allow *' mon 'allow profile osd' -i /etc/ceph/ceph.osd.4.keyring really is 2 commands: > chown -R ceph:ceph /var/lib/ceph/osd/ceph-4 and ceph auth add osd.4 > osd 'allow *' mon 'allow profile osd' -i /etc/ceph/ceph.osd.4.keyring > > Cary, what am I looking for in ceph -w and ceph -s to show the status of the data moving? > Seems like the data is moving and that I have some issue... > > root@node-53:~# ceph -w > cluster 2b9f7957-d0db-481e-923e-89972f6c594f > health HEALTH_WARN > 176 pgs backfill_wait > 1 pgs backfilling > 27 pgs degraded > 1 pgs recovering > 26 pgs recovery_wait > 27 pgs stuck degraded > 204 pgs stuck unclean > recovery 10322/84644 objects degraded (12.195%) > recovery 52912/84644 objects misplaced (62.511%) > monmap e3: 3 mons at {node-43=192.168.1.7:6789/0,node-44=192.168.1.5:6789/0,node-45=192.168.1.3:6789/0} > election epoch 138, quorum 0,1,2 node-45,node-44,node-43 > osdmap e206: 4 osds: 4 up, 4 in; 177 remapped pgs > flags sortbitwise,require_jewel_osds > pgmap v3936175: 512 pgs, 5 pools, 333 GB data, 58184 objects > 370 GB used, 5862 GB / 6233 GB avail > 10322/84644 objects degraded (12.195%) > 52912/84644 objects misplaced (62.511%) > 308 active+clean > 176 active+remapped+wait_backfill > 26 active+recovery_wait+degraded > 1 active+remapped+backfilling > 1 active+recovering+degraded recovery io 100605 > kB/s, 14 objects/s > client io 0 B/s rd, 92788 B/s wr, 50 op/s rd, 11 op/s wr > > 2017-12-14 22:45:57.459846 mon.0 [INF] pgmap v3936174: 512 pgs: 1 > activating, 1 active+recovering+degraded, 26 > active+recovery_wait+degraded, 1 active+remapped+backfilling, 307 > active+clean, 176 active+remapped+wait_backfill; 333 GB data, 369 GB > used, 5863 GB / 6233 GB avail; 0 B/s rd, 101107 B/s wr, 19 op/s; > 10354/84644 objects degraded (12.232%); 52912/84644 objects misplaced > (62.511%); 12224 kB/s, 2 objects/s recovering > 2017-12-14 22:45:58.466736 mon.0 [INF] pgmap v3936175: 512 pgs: 1 > active+recovering+degraded, 26 active+recovery_wait+degraded, 1 > active+remapped+backfilling, 308 active+clean, 176 > active+remapped+wait_backfill; 333 GB data, 370 GB used, 5862 GB / > 6233 GB avail; 0 B/s rd, 92788 B/s wr, 61 op/s; 10322/84644 objects > degraded (12.195%); 52912/84644 objects misplaced (62.511%); 100605 > kB/s, 14 objects/s recovering > 2017-12-14 22:46:00.474335 mon.0 [INF] pgmap v3936176: 512 pgs: 1 > active+recovering+degraded, 26 active+recovery_wait+degraded, 1 > active+remapped+backfilling, 308 active+clean, 176 > active+remapped+wait_backfill; 333 GB data, 370 GB used, 5862 GB / > 6233 GB avail; 0 B/s rd, 434 kB/s wr, 45 op/s; 10322/84644 objects > degraded (12.195%); 52912/84644 objects misplaced (62.511%); 84234 > kB/s, 10 objects/s recovering > 2017-12-14 22:46:02.482228 mon.0 [INF] pgmap v3936177: 512 pgs: 1 > active+recovering+degraded, 26 active+recovery_wait+degraded, 1 > active+remapped+backfilling, 308 active+clean, 176 > active+remapped+wait_backfill; 333 GB data, 370 GB used, 5862 GB / > 6233 GB avail; 0 B/s rd, 334 kB/s wr > > > -----Original Message----- > From: Cary [mailto:dynamic.cary@xxxxxxxxx] > Sent: Thursday, December 14, 2017 4:21 PM > To: James Okken > Cc: ceph-users@xxxxxxxxxxxxxx > Subject: Re: add hard drives to 3 CEPH servers (3 server > cluster) > > Jim, > > I am not an expert, but I believe I can assist. > > Normally you will only have 1 OSD per drive. I have heard discussions about using multiple OSDs per disk, when using SSDs though. > > Once your drives have been installed you will have to format them, unless you are using Bluestore. My steps for formatting are below. > Replace the sXX with your drive name. > > parted -a optimal /dev/sXX > print > mklabel gpt > unit mib > mkpart OSD4sdd1 1 -1 > quit > mkfs.xfs -f /dev/sXX1 > > # Run blkid, and copy the UUID for the newly formatted drive. > blkid > # Add the mount point/UUID to fstab. The mount point will be created later. > vi /etc/fstab > # For example > UUID=6386bac4-7fef-3cd2-7d64-13db51d83b12 /var/lib/ceph/osd/ceph-4 xfs > rw,noatime,inode64,logbufs=8 0 0 > > > # You can then add the OSD to the cluster. > > uuidgen > # Replace the UUID below with the UUID that was created with uuidgen. > ceph osd create 23e734d7-96d8-4327-a2b9-0fbdc72ed8f1 > > # Notice what number of osd it creates usually the lowest # OSD available. > > # Add osd.4 to ceph.conf on all Ceph nodes. > vi /etc/ceph/ceph.conf > ... > [osd.4] > public addr = 172.1.3.1 > cluster addr = 10.1.3.1 > ... > > # Now add the mount point. > mkdir -p /var/lib/ceph/osd/ceph-4 > chown -R ceph:ceph /var/lib/ceph/osd/ceph-4 > > # The command below mounts everything in fstab. > mount -a > # The number after -i below needs changed to the correct OSD ID, and the osd-uuid needs to be changed the UUID created with uuidgen above. > Your keyring location may be different and need changed as well. > ceph-osd -i 4 --mkfs --mkkey --osd-uuid > 23e734d7-96d8-4327-a2b9-0fbdc72ed8f1 > chown -R ceph:ceph /var/lib/ceph/osd/ceph-4 ceph auth add osd.4 osd > 'allow *' mon 'allow profile osd' -i /etc/ceph/ceph.osd.4.keyring > > # Add the new OSD to its host in the crush map. > ceph osd crush add osd.4 .0 host=YOURhostNAME > > # Since the weight used in the previous step was .0, you will need to increase it. I use 1 for a 1TB drive and 5 for a 5TB drive. The command below will reweight osd.4 to 1. You may need to slowly ramp up this number. ie .10 then .20 etc. > ceph osd crush reweight osd.4 1 > > You should now be able to start the drive. You can watch the data move to the drive with a ceph -w. Once data has migrated to the drive, start the next. > > Cary > -Dynamic > > On Thu, Dec 14, 2017 at 5:34 PM, James Okken <James.Okken@xxxxxxxxxxxx> wrote: >> Hi all, >> >> Please let me know if I am missing steps or using the wrong steps >> >> I'm hoping to expand my small CEPH cluster by adding 4TB hard drives to each of the 3 servers in the cluster. >> >> I also need to change my replication factor from 1 to 3. >> This is part of an Openstack environment deployed by Fuel and I had foolishly set my replication factor to 1 in the Fuel settings before deploy. I know this would have been done better at the beginning. I do want to keep the current cluster and not start over. I know this is going thrash my cluster for a while replicating, but there isn't too much data on it yet. >> >> >> To start I need to safely turn off each CEPH server and add in the 4TB drive: >> To do that I am going to run: >> ceph osd set noout >> systemctl stop ceph-osd@1 (or 2 or 3 on the other servers) ceph osd >> tree (to verify it is down) poweroff, install the 4TB drive, bootup >> again ceph osd unset noout >> >> >> >> Next step wouyld be to get CEPH to use the 4TB drives. Each CEPH server already has a 836GB OSD. >> >> ceph> osd df >> ID WEIGHT REWEIGHT SIZE USE AVAIL %USE VAR PGS >> 0 0.81689 1.00000 836G 101G 734G 12.16 0.90 167 >> 1 0.81689 1.00000 836G 115G 721G 13.76 1.02 166 >> 2 0.81689 1.00000 836G 121G 715G 14.49 1.08 179 >> TOTAL 2509G 338G 2171G 13.47 MIN/MAX VAR: 0.90/1.08 >> STDDEV: 0.97 >> >> ceph> df >> GLOBAL: >> SIZE AVAIL RAW USED %RAW USED >> 2509G 2171G 338G 13.47 >> POOLS: >> NAME ID USED %USED MAX AVAIL OBJECTS >> rbd 0 0 0 2145G 0 >> images 1 216G 9.15 2145G 27745 >> backups 2 0 0 2145G 0 >> volumes 3 114G 5.07 2145G 29717 >> compute 4 0 0 2145G 0 >> >> >> Once I get the 4TB drive into each CEPH server should I look to increasing the current OSD (ie: to 4836GB)? >> Or create a second 4000GB OSD on each CEPH server? >> If I am going to create a second OSD on each CEPH server I hope to use this doc: >> http://docs.ceph.com/docs/master/rados/operations/add-or-rm-osds/ >> >> >> >> As far as changing the replication factor from 1 to 3: >> Here are my pools now: >> >> ceph osd pool ls detail >> pool 0 'rbd' replicated size 1 min_size 1 crush_ruleset 0 object_hash >> rjenkins pg_num 64 pgp_num 64 last_change 1 flags hashpspool stripe_width 0 pool 1 'images' replicated size 1 min_size 1 crush_ruleset 0 object_hash rjenkins pg_num 64 pgp_num 64 last_change 116 flags hashpspool stripe_width 0 >> removed_snaps [1~3,b~6,12~8,20~2,24~6,2b~8,34~2,37~20] >> pool 2 'backups' replicated size 1 min_size 1 crush_ruleset 0 >> object_hash rjenkins pg_num 64 pgp_num 64 last_change 7 flags hashpspool stripe_width 0 pool 3 'volumes' replicated size 1 min_size 1 crush_ruleset 0 object_hash rjenkins pg_num 256 pgp_num 256 last_change 73 flags hashpspool stripe_width 0 >> removed_snaps [1~3] >> pool 4 'compute' replicated size 1 min_size 1 crush_ruleset 0 >> object_hash rjenkins pg_num 64 pgp_num 64 last_change 34 flags >> hashpspool stripe_width 0 >> >> I plan on using these steps I saw online: >> ceph osd pool set rbd size 3 >> ceph -s (Verify that replication completes successfully) ceph osd >> pool set images size 3 ceph -s ceph osd pool set backups size 3 ceph >> -s ceph osd pool set volumes size 3 ceph -s >> >> >> please let me know any advice or better methods... >> >> thanks >> >> --Jim >> >> _______________________________________________ >> ceph-users mailing list >> ceph-users@xxxxxxxxxxxxxx >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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