On 11/10/2014 15:20, Loic Dachary wrote: > > > On 09/10/2014 12:24, SCHAER Frederic wrote: >> Hi, >> >> >> >> I am setting up a test ceph cluster, on decommissioned hardware (hence : not optimal, I know). >> >> I have installed CentOS7, installed and setup ceph mons and OSD machines using puppet, and now I’m trying to add OSDs with the servers OSD disks… and I have issues (of course ;) ) >> >> I used the Ceph RHEL7 RPMs (ceph-0.80.6-0.el7.x86_64) >> >> >> >> When I run “ceph-disk prepare” for a disk, I most of the time (but not always) get the partitions created, but not activated : >> >> >> >> [root@ceph4 ~]# ceph-disk list|grep sdh >> >> WARNING:ceph-disk:Old blkid does not support ID_PART_ENTRY_* fields, trying sgdisk; may not correctly identify ceph volumes with dmcrypt >> >> /dev/sdh : >> >> /dev/sdh1 ceph data, prepared, cluster ceph, journal /dev/sdh2 >> >> /dev/sdh2 ceph journal, for /dev/sdh1 >> >> >> >> I tried to debug udev rules thinking they were not launched to activate the OSD, but they are, and they fail on this error : >> >> >> >> + ln -sf ../../sdh2 /dev/disk/by-partuuid/5b3bde8f-ccad-4093-a8a5-ad6413ae8931 >> >> + mkdir -p /dev/disk/by-parttypeuuid > > Hi, > > I have a rhel7 machine handy. How did you get this debug output ? Found it : adding set -x to https://github.com/ceph/ceph/blob/giant/src/ceph-disk-udev > > Cheers > >> >> + ln -sf ../../sdh2 /dev/disk/by-parttypeuuid/45b0969e-9b03-4f30-b4c6-b4b80ceff106.5b3bde8f-ccad-4093-a8a5-ad6413ae8931 >> >> + case $ID_PART_ENTRY_TYPE in >> >> + /usr/sbin/ceph-disk -v activate-journal /dev/sdh2 >> >> INFO:ceph-disk:Running command: /usr/bin/ceph-osd -i 0 --get-journal-uuid --osd-journal /dev/sdh2 >> >> SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0b 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >> >> DEBUG:ceph-disk:Journal /dev/sdh2 has OSD UUID 00000000-0000-0000-0000-000000000000 >> >> INFO:ceph-disk:Running command: /sbin/blkid -p -s TYPE -ovalue -- /dev/disk/by-partuuid/00000000-0000-0000-0000-000000000000 >> >> error: /dev/disk/by-partuuid/00000000-0000-0000-0000-000000000000: No such file or directory >> >> ceph-disk: Cannot discover filesystem type: device /dev/disk/by-partuuid/00000000-0000-0000-0000-000000000000: Command '/sbin/blkid' returned non-zero exit status 2 >> >> + exit >> >> + exec >> >> >> >> You’ll notice the zeroed UUID… >> >> Because of this, I looked at the output of ceph-disk prepare, and saw that partx complains at the end (this is the partx –a command) : >> >> >> >> Warning: The kernel is still using the old partition table. >> >> The new table will be used at the next reboot. >> >> The operation has completed successfully. >> >> partx: /dev/sdh: error adding partitions 1-2 >> >> >> >> And indeed, running “partx –a /dev/sdh” does not change anything. >> >> But I just discovered that running “partx –u /dev/sdh” will fix everything ….???? >> >> I.e : right after I send this update command to the kernel, my debug logs show that the udev rule does everything fine and the OSD starts up. >> >> >> >> I’m therefore wondering what I did wrong ? >> >> is this CentOS 7 that is misbehaving, or the kernel, or…? >> >> Any reason why partx –a is used instead of partx –u ? >> >> >> >> I’d be glad to hear others advice on this ! >> >> Thanks && regards >> >> >> >> Frederic Schaer >> >> >> >> >> >> _______________________________________________ >> ceph-users mailing list >> ceph-users@xxxxxxxxxxxxxx >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> > -- Loïc Dachary, Artisan Logiciel Libre
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