[Lustre-discuss] big problem: read-only fs

[Papp Tamás]

Papp Tamas wrote:
> Andreas Dilger wrote:
>   
>> On Sep 16, 2008  18:47 +0200, Papp Tam�s wrote:
>>   
>>     
>>> I run fsck on the node, and remounted it. Fsck found a lot of errors.
>>>
>>>
>>> After this I see this on the logs again:
>>> Sep 16 18:30:08 node1 kernel: LDISKFS-fs error (device sdb1): 
>>> ldiskfs_ext_find_extent: bad header in inode #58262056: invalid magic - 
>>> magic 0, entries 0, max 0(0), depth 0(0)
>>> Sep 16 18:30:08 node1 kernel: Remounting filesystem read-only
>>>
>>> But why does -30 is here? I hoped, it will disappear after fsck, but I 
>>> see again. What could cause this problem? How can I solve it?
>>>     
>>>       
>> -30 = -EROFS, caused by the extent header error.  This was fixed in
>> very recent Lustre e2fsprogs, do you have the latest released version?
>>
>>   
>>     
>
> Well, the recent e2fsprogs from Sun did not help.
>
> So I tried to move away the files from the node, but it's not so simple, 
> I have some question.
>
> 1.
> $ lfs df|grep OST0002
> cubefs-OST0002_UUID  1845110624 1512955404 332155220   81% /W[OST:2]
> $ lctl dl|grep OST0002
>   4 UP osc cubefs-OST0002-osc-ffff81002b2b5000 
> 345f312a-51e9-b9de-b462-35a56ae76341 5
>
> Which one should I use?
>
> Anyway:
>
> $ lfs find --obd cubefs-OST0002-osc-ffff81002b2b5000 -r .
> error: setup_obd_uuids: unknown obduuid: cubefs-OST0002-osc-ffff81002b2b5000
> ./1 2
> ./1 23
> ./1 234
> ./1 2345
>
> $ lfs find --obd cubefs-OST0002_UUID -r .
> error: setup_obd_uuids: unknown obduuid: cubefs-OST0002_UUID
> ./1 2
> ./1 23
> ./1 234
> ./1 2345
>
> But:
>
> $ lfs getstripe .
> OBDS:
> . has no stripe info
> ./1 2
>         obdidx           objid          objid            group
>              3          455101        0x6f1bd                0
>
> ./1 23
>         obdidx           objid          objid            group
>              3          455125        0x6f1d5                0
>
> ./1 234
>         obdidx           objid          objid            group
>              4          448480        0x6d7e0                0
>
> ./1 2345
>         obdidx           objid          objid            group
>              2          455201        0x6f221                0
>
>
> 2.
> # mount|grep lustre
> /dev/sdb1 on /mnt/cubefs/ost-1 type lustre (rw)
>
> # grep lustre /proc/mounts
> /dev/*sdb */mnt/cubefs/ost-1 lustre ro 0 0
>
> Why don't I see sdb1 in /proc?
> Also why do I see ro in /proc?
>
> 3.
> samba:~$ cat /proc/fs/lustre/lov/cubefs-clilov-ffff8100330c4800/target_obd
> samba:~$
>
> I have an other cluster, on that it shows the right values (on the same 
> machine at the same time too).
>
>   

There is no answer about any of these issues?

Did I do something wrong?

tamas