Hi Loic, 

osd's are on /dev/sda and /dev/sdb, journal's is on /dev/sdc (sdc3 / sdc4). 

sgdisk for sda shows; 

Partition GUID code: 4FBD7E29-9D25-41B8-AFD0-062C0CEFF05D (Unknown) 
Partition unique GUID: E85F4D92-C8F1-4591-BD2A-AA43B80F58F6 
First sector: 2048 (at 1024.0 KiB) 
Last sector: 1953525134 (at 931.5 GiB) 
Partition size: 1953523087 sectors (931.5 GiB) 
Attribute flags: 0000000000000000 
Partition name: 'ceph data' 

for sdb 

Partition GUID code: 4FBD7E29-9D25-41B8-AFD0-062C0CEFF05D (Unknown) 
Partition unique GUID: C83B5AA5-FE77-42F6-9415-25CA0266FB7F 
First sector: 2048 (at 1024.0 KiB) 
Last sector: 1953525134 (at 931.5 GiB) 
Partition size: 1953523087 sectors (931.5 GiB) 
Attribute flags: 0000000000000000 
Partition name: 'ceph data' 

for /dev/sdc3 

Partition GUID code: 45B0969E-9B03-4F30-B4C6-B4B80CEFF106 (Unknown) 
Partition unique GUID: C34D4694-B486-450D-B57F-DA24255F0072 
First sector: 935813120 (at 446.2 GiB) 
Last sector: 956293119 (at 456.0 GiB) 
Partition size: 20480000 sectors (9.8 GiB) 
Attribute flags: 0000000000000000 
Partition name: 'ceph journal' 

for /dev/sdc4 

Partition GUID code: 45B0969E-9B03-4F30-B4C6-B4B80CEFF106 (Unknown) 
Partition unique GUID: 1E9D527F-0866-4284-B77C-C1CB04C5A168 
First sector: 956293120 (at 456.0 GiB) 
Last sector: 976773119 (at 465.8 GiB) 
Partition size: 20480000 sectors (9.8 GiB) 
Attribute flags: 0000000000000000 
Partition name: 'ceph journal' 

60-ceph-partuuid-workaround.rules is located in /lib/udev/rules.d, so it seems 
correct to me. 

after a reboot, /dev/disk/by-partuuid is; 

-rw-r--r-- 1 root root 0 Dec 16 07:35 1e9d527f-0866-4284-b77c-c1cb04c5a168 
-rw-r--r-- 1 root root 0 Dec 16 07:35 c34d4694-b486-450d-b57f-da24255f0072 
lrwxrwxrwx 1 root root 10 Dec 16 07:35 c83b5aa5-fe77-42f6-9415-25ca0266fb7f -> 
../../sdb1 
lrwxrwxrwx 1 root root 10 Dec 16 07:35 e85f4d92-c8f1-4591-bd2a-aa43b80f58f6 -> 
../../sda1 

i dont know how to verify the symlink of the journal file - can you guide me on 
that one? 

Thank :-) ! 

/Jesper 

************** 

Hi, 

On 17/12/2015 07:53, Jesper Thorhauge wrote: 
> Hi, 
> 
> Some more information showing in the boot.log; 
> 
> 2015-12-16 07:35:33.289830 7f1b990ad800 -1 
> filestore(/var/lib/ceph/tmp/mnt.aWZTcE) mkjournal error creating journal on 
> /var/lib/ceph/tmp/mnt.aWZTcE/journal: (22) Invalid argument 
> 2015-12-16 07:35:33.289842 7f1b990ad800 -1 OSD::mkfs: ObjectStore::mkfs 
> failed with error -22 
> 2015-12-16 07:35:33.289883 7f1b990ad800 -1 ** ERROR: error creating empty 
> object store in /var/lib/ceph/tmp/mnt.aWZTcE: (22) Invalid argument 
> ERROR:ceph-disk:Failed to activate 
> ceph-disk: Command '['/usr/bin/ceph-osd', '--cluster', 'ceph', '--mkfs', 
> '--mkkey', '-i', '7', '--monmap', 
> '/var/lib/ceph/tmp/mnt.aWZTcE/activate.monmap', '--osd-data', 
> '/var/lib/ceph/tmp/mnt.aWZTcE', '--osd-journal', 
> '/var/lib/ceph/tmp/mnt.aWZTcE/journal', '--osd-uuid', 
> 'c83b5aa5-fe77-42f6-9415-25ca0266fb7f', '--keyring', 
> '/var/lib/ceph/tmp/mnt.aWZTcE/keyring']' returned non-zero exit status 1 
> ceph-disk: Error: One or more partitions failed to activate 
> 
> Maybe related to the "(22) Invalid argument" part..? 

After a reboot the symlinks are reconstructed and if they are still incorrect, 
it means there is an inconsistency somewhere else. To debug the problem, could 
you mount /dev/sda1 and verify the symlink of the journal file ? Then verify 
the content of /dev/disk/by-partuuid. And also display the partition 
information with sgdisk -i 1 /dev/sda and sgdisk -i 2 /dev/sda. Are you 
collocating your journal with the data, on the same disk ? Or are they on two 
different disks ? 

git log --no-merges --oneline tags/v0.94.3..tags/v0.94.5 udev 

shows nothing, meaning there has been no change to udev rules. There is one 
change related to the installation of the udev rules 
https://github.com/ceph/ceph/commit/4eb58ad2027148561d94bb43346b464b55d041a6. 
Could you double check 60-ceph-partuuid-workaround.rules is installed where it 
should ? 

Cheers 

> 
> /Jesper 
> 
> ********************* 
> 
> Hi, 
> 
> I have done several reboots, and it did not lead to healthy symlinks :-( 
> 
> /Jesper 
> 
> ************ 
> 
> Hi, 
> 
> On 16/12/2015 07:39, Jesper Thorhauge wrote: 
>> Hi, 
>> 
>> A fresh server install on one of my nodes (and yum update) left me with 
>> CentOS 6.7 / Ceph 0.94.5. All the other nodes are running Ceph 0.94.2. 
>> 
>> "ceph-disk prepare /dev/sda /dev/sdc" seems to work as expected, but 
>> "ceph-disk activate / dev/sda1" fails. I have traced the problem to 
>> "/dev/disk/by-partuuid", where the journal symlinks are broken; 
>> 
>> -rw-r--r-- 1 root root 0 Dec 16 07:35 1e9d527f-0866-4284-b77c-c1cb04c5a168 
>> -rw-r--r-- 1 root root 0 Dec 16 07:35 c34d4694-b486-450d-b57f-da24255f0072 
>> lrwxrwxrwx 1 root root 10 Dec 16 07:35 c83b5aa5-fe77-42f6-9415-25ca0266fb7f 
>> -> ../../sdb1 
>> lrwxrwxrwx 1 root root 10 Dec 16 07:35 e85f4d92-c8f1-4591-bd2a-aa43b80f58f6 
>> -> ../../sda1 
>> 
>> Re-creating them manually wont survive a reboot. Is this a problem with the 
>> udev rules in Ceph 0.94.3+? 
> 
> This usually is a symptom of something else going wrong (i.e. it is possible 
> to confuse the kernel into creating the wrong symbolic links). The correct 
> symlinks should be set when you reboot. 
> 
>> Hope that somebody can help me :-) 
> 
> Please let us know if rebooting leads to healthy symlinks. 
> 
> Cheers 
>> 
>> Thanks! 
>> 
>> Best regards, 
>> Jesper 
>> 
>> 
>> _______________________________________________ 
>> ceph-users mailing list 
>> ceph-users@lists.ceph.com 
>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com 
>> 
> 
> -- 
> Loïc Dachary, Artisan Logiciel Libre 
> 
> 
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-- 
Loïc Dachary, Artisan Logiciel Libre 

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