You can change the pools configuration using for example one of this two options:
1. define a different crush_ruleset for the pools to allow replicas to be placed on the same host (so 3 replicas can be accommodated on two hosts). 2. set the number of replicas to two Option 2 is very easy: $ ceph osd pool set <pool_name> size 2 For option 1, please try to have a look here: http://blog.zhaw.ch/icclab/deploy-ceph-troubleshooting-part-23/ (case 2 of " Check that replication requirements can be met" paragraph) 2014-07-18 16:55 GMT+02:00 Joe Hewitt <joe.z.hew...@gmail.com>: > Agree with Iban,, adding one more OSD may help. > I met the same problem when I created cluster following quick start guide. > 2 OSD nodes gave me health_warn and then adding one more OSD made > everything okay. > > > > From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of > Iban Cabrillo > Sent: Friday, July 18, 2014 10:43 PM > To: Pratik Rupala > Cc: ceph-users@lists.ceph.com > Subject: Re: [ceph-users] Not able to achieve active+clean state > > Hi Pratik, > I am not an expert, but I think you need one more OSD server, the > default pools (rbd, metadata, data) have 3 replicas by default. > Regards, I > El 18/07/2014 14:19, "Pratik Rupala" <pratik.rup...@calsoftinc.com> > escribió: > Hi, > > I am deploying firefly version on CentOs 6.4. I am following quick > installation instructions available at ceph.com. > Kernel version in CentOs 6.4 is 2.6.32-358. > > I am using virtual machines for all the nodes. As per the setup, there are > one admin-node, one monitor node and two OSD nodes. > I have added four OSDs created from four scsi disks of 10 GB on both OSD > nodes, instead of just creating directory on OSD nodes as shown in that > quick installation section. > > At the end when I run ceph health command, the website says it should > achieve active+clean state. But my cluster is not able to achieve it as > shown below: > > [ceph@node1 ~]$ ceph health > HEALTH_WARN 192 pgs incomplete; 192 pgs stuck inactive; 192 pgs stuck > unclean > [ceph@node1 ~]$ ceph status > cluster 08c77eb5-4fa9-4d4a-938c-af812137cb2c > health HEALTH_WARN 192 pgs incomplete; 192 pgs stuck inactive; 192 > pgs stuck unclean > monmap e1: 1 mons at {node1=172.17.35.17:6789/0}, election epoch 1, > quorum 0 node1 > osdmap e36: 8 osds: 8 up, 8 in > pgmap v95: 192 pgs, 3 pools, 0 bytes data, 0 objects > 271 MB used, 40600 MB / 40871 MB avail > 192 creating+incomplete > [ceph@node1 ~]$ > > > [ceph@node1 ~]$ ceph osd tree > # id weight type name up/down reweight > -1 0 root default > -2 0 host node2 > 0 0 osd.0 up 1 > 1 0 osd.1 up 1 > 2 0 osd.2 up 1 > 3 0 osd.3 up 1 > -3 0 host node3 > 4 0 osd.4 up 1 > 5 0 osd.5 up 1 > 6 0 osd.6 up 1 > 7 0 osd.7 up 1 > [ceph@node1 ~]$ > > > Please let me know if I am missing anything. Do I still need to do to > bring my Ceph cluster in HEALTH OK state. > > Regards, > Pratik Rupala > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Vincenzo Pii Researcher, InIT Cloud Computing Lab Zurich University of Applied Sciences (ZHAW) http://www.cloudcomp.ch/
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