Ceph

Firstly, well done guys on achieving this version milestone. I successfully upgraded to the 0.48 format uneventfully on a live (test) system.

The same system was then going through "rebuild" testing, to confirm that also worked fine.

Unfortunately, the mkcephfs command is failing:

root@dsanb1-coy:~# mkcephfs -c /etc/ceph/ceph.conf --allhosts --mkbtrfs -k /etc/ceph/keyring --crushmapsrc crushfile.txt -v temp dir is /tmp/mkcephfs.GaRCZ9i06a preparing monmap in /tmp/mkcephfs.GaRCZ9i06a/monmap /usr/bin/monmaptool --create --clobber --add alpha 10.32.0.10:6789 --add bravo 10.32.0.25:6789 --add charlie 10.32.0.11:6789 --print /tmp/mkcephfs.GaRCZ9i06a/monmap
/usr/bin/monmaptool: monmap file /tmp/mkcephfs.GaRCZ9i06a/monmap
/usr/bin/monmaptool: generated fsid c7202495-468c-4678-b678-115c3ee33402
epoch 0
fsid c7202495-468c-4678-b678-115c3ee33402
last_changed 2012-07-04 15:02:31.732275
created 2012-07-04 15:02:31.732275
0: 10.32.0.10:6789/0 mon.alpha
1: 10.32.0.11:6789/0 mon.charlie
2: 10.32.0.25:6789/0 mon.bravo
/usr/bin/monmaptool: writing epoch 0 to /tmp/mkcephfs.GaRCZ9i06a/monmap (3 monitors) /usr/bin/ceph-conf -c /etc/ceph/ceph.conf -n osd.0 "user" 
=== osd.0 ===
--- dsanb1-coy# /sbin/mkcephfs -d /tmp/mkcephfs.GaRCZ9i06a --prepare-osdfs osd.0
umount: /srv/osd.0: not mounted
umount: /dev/disk/by-wwn/wwn-0x50014ee601246234: not mounted

WARNING! - Btrfs Btrfs v0.19 IS EXPERIMENTAL WARNING! - see http://btrfs.wiki.kernel.org before using

fs created label (null) on /dev/disk/by-wwn/wwn-0x50014ee601246234
        nodesize 4096 leafsize 4096 sectorsize 4096 size 1.82TB Btrfs Btrfs v0.19 Scanning for Btrfs filesystems
mount: wrong fs type, bad option, bad superblock on /dev/sdc,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

failed: '/sbin/mkcephfs -d /tmp/mkcephfs.GaRCZ9i06a --prepare-osdfs osd.0'

dmesg/syslog is spitting out at the time of this failure:

Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.751945] device fsid 7de0d192-b710-4629-a201-849df1d9db17 devid 1 transid 27109 /dev/sdp Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.751987] device fsid 08fc3479-2fa2-4388-8b61-83e2a742a13e devid 1 transid 28699 /dev/sdo Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.752023] device fsid 8b4a7c43-1a05-4dcb-bbed-de2a5c933996 devid 1 transid 24346 /dev/sdn Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.752068] device fsid ba5fb1ca-c642-49b1-8a41-7f56f8e59fbd devid 1 transid 27274 /dev/sdm Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.761453] device fsid 7fe8c5cf-bf8c-4276-90f2-c3f57f5275fb devid 1 transid 28724 /dev/sdi Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.761518] device fsid 93fa3631-1202-4d42-8908-e5ef4d3e600d devid 1 transid 25201 /dev/sdh Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.761579] device fsid b9a1b5e4-3e5e-4381-a29a-33470f4b870f devid 1 transid 23375 /dev/sdg Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.761635] device fsid 280ea990-23f8-4c43-9e56-140c82340fdc devid 1 transid 25559 /dev/sdf Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.761693] device fsid 2f724cde-6de5-4262-b195-1ba3eea2256e devid 1 transid 176 /dev/sde Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.761732] device fsid a66f890f-8b08-4393-aab0-f222637ca5a4 devid 1 transid 7 /dev/sdd Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.761769] device fsid 6c181a94-697c-4e0c-af0d-05eb04d3626c devid 1 transid 7 /dev/sdc Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.775931] device fsid 6c181a94-697c-4e0c-af0d-05eb04d3626c devid 1 transid 7 /dev/sdc Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.779716] btrfs bad fsid on block 20971520 Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.791594] btrfs bad fsid on block 20971520 Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.803608] btrfs bad fsid on block 20971520 Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.815541] btrfs bad fsid on block 20971520 Jul  4 15:02:31 dsanb1-coy kernel: [ 2306.815878] btrfs bad fsid on block 20971520 Jul  4 15:02:32 dsanb1-coy kernel: [ 2306.823554] btrfs bad fsid on block 20971520 Jul  4 15:02:32 dsanb1-coy kernel: [ 2306.823797] btrfs bad fsid on block 20971520 Jul  4 15:02:32 dsanb1-coy kernel: [ 2306.823887] btrfs: failed to read chunk root on sdc Jul  4 15:02:32 dsanb1-coy kernel: [ 2306.825622] btrfs: open_ctree failed

Also fails if not forcing to use btrfs, eg:

root@dsanb1-coy:~# mkcephfs -c /etc/ceph/ceph.conf --allhosts -k /etc/ceph/keyring --crushmapsrc crushfile.txt -v temp dir is /tmp/mkcephfs.ZOh6tBPAH0 preparing monmap in /tmp/mkcephfs.ZOh6tBPAH0/monmap /usr/bin/monmaptool --create --clobber --add alpha 10.32.0.10:6789 --add bravo 10.32.0.25:6789 --add charlie 10.32.0.11:6789 --print /tmp/mkcephfs.ZOh6tBPAH0/monmap
/usr/bin/monmaptool: monmap file /tmp/mkcephfs.ZOh6tBPAH0/monmap
/usr/bin/monmaptool: generated fsid adb8d65c-a823-4dc2-9415-22b0d7252699
epoch 0
fsid adb8d65c-a823-4dc2-9415-22b0d7252699
last_changed 2012-07-04 15:04:17.423368
created 2012-07-04 15:04:17.423368
0: 10.32.0.10:6789/0 mon.alpha
1: 10.32.0.11:6789/0 mon.charlie
2: 10.32.0.25:6789/0 mon.bravo
/usr/bin/monmaptool: writing epoch 0 to /tmp/mkcephfs.ZOh6tBPAH0/monmap (3 monitors) /usr/bin/ceph-conf -c /etc/ceph/ceph.conf -n osd.0 "user" 
=== osd.0 ===
--- dsanb1-coy# /sbin/mkcephfs -d /tmp/mkcephfs.ZOh6tBPAH0 --init-daemon osd.0
2012-07-04 15:04:17.789064 7fc7fadca780 -1 filestore(/srv/osd.0) limited size xattrs -- enable filestore_xattr_use_omap
2012-07-04 15:04:17.789120 7fc7fadca780 -1 OSD::mkfs: couldn't mount FileStore: error -95
2012-07-04 15:04:17.789161 7fc7fadca780 -1  ** ERROR: error creating empty object store in /srv/osd.0: (95) Operation not supported
failed: '/sbin/mkcephfs -d /tmp/mkcephfs.ZOh6tBPAH0 --init-daemon osd.0'

Confirming all this was working previously, and the crushmap, config file, etc are all proven to be OK (get same failure when not specifying a custom crushmap also). Also note that whilst the above is failing on osd.0 creation, I have swapped disk references and still get the same failure on different HDD's when they are hooked in as osd.0

The setup is: Ubuntu 12.04 x64, with "main/release" ceph installed per: http://ceph.com/docs/master/install/debian/

Many thanks!

Paul