Re: Journal symlink broken / Ceph 0.94.5 / CentOS 6.7

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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
>>
>>
>> _______________________________________________
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>> ceph-users@xxxxxxxxxxxxxx
>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>>
> 
> -- 
> Loïc Dachary, Artisan Logiciel Libre
> 
> 
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> 
> 
> 
> _______________________________________________
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> 

-- 
Loïc Dachary, Artisan Logiciel Libre

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