Hi Dimos,

You might want to post your current conf file again. In there you should see a line that says something like "RootHandle 1048576". That is the identifier for the root handle that pvfs2-ping is trying to find in the file system. If you then look a little further down in the configuration file there is a section called <MetaHandleRanges> which allocates ranges of metadata identifiers to different servers. The number listed in the RootHandle line _must_ fall into exactly one of these meta handle ranges. Assuming that it is in there, then it is the corresponding server that is causing a problem.

-Phil

On 01/26/2012 03:47 PM, Dimokritos Stamatakis wrote:
I just erased the storage (/mnt/pvfs2) and the /pvfs2-storage-space/ and tried again, but nothing happened.
Maybe another setup to the code or the DB_CONFIG?
As the error says noone is root for that file system, right?

Thanks,
Dimos.



I would delete the storage spaces and try again. The error message is saying that ithe root doesn't exist.

Becky

On Thursday, January 26, 2012, Dimokritos Stamatakis <dimsta...@gmail.com <mailto:dimsta...@gmail.com>> wrote:
> Yes , I did!
> Another possible solution?
> Thanks.
>
>
>
> Did you create the storage space on each server? (pvfs2-server -f pvfs2-fs.conf -a <alias>)
>
> Becky
>
> On Thu, Jan 26, 2012 at 11:42 AM, Dimokritos Stamatakis <dimsta...@gmail.com <mailto:dimsta...@gmail.com>> wrote:
>>
>> Thanks for your answers,
>> I generated the conf file once and I copy-pasted the contents to the other nodes.
>> But in pvfs2-ping -m /mnt/pvfs2 I still get the same error :
>>
>> (7) Verifying that root handle is owned by one server...
>>
>>   Root handle: 1048576
>> Failure: check root handle failed
>> PVFS_mgmt_setparam_all: Detailed per-server errors are available (error class: 0)
>>
>>        Exactly one server must own the root handle.
>>        In this setup, no servers own the root handle.
>>
>> Per-server errors:
>> =============================================================
>>
>> The PVFS2 filesystem at /mnt/pvfs2/ appears to have problems.
>>
>>
>>
>> What does it mean that the root handle is owned by more than one servers?
>> All the previous tests (1-6) are successful.
>>
>> Many thanks to all,
>> Dimos.
>>
>>
>>
>>
>> > You should generate it once and copy it to all servers. If it isn't exactly the same on all servers things won't work (potentially, the error you got).
>> >
>> > Walt
>> >
>> > On 1/26/12 10:26 AM, Dimokritos Stamatakis wrote:
>> >> Hello all,
>> >> I finally deployed the pvfs to the cloud, but I get the following error when I run pvfs-ping -m /mnt pvfs2 :
>> >>
>> >> (7) Verifying that root handle is owned by one server...
>> >>
>> >>    Root handle: 1048576
>> >> Failure: check root handle failed
>> >> PVFS_mgmt_setparam_all: Detailed per-server errors are available (error class: 0)
>> >>
>> >>      Exactly one server must own the root handle.
>> >>      In this setup, no servers own the root handle.
>> >>
>> >> Per-server errors:
>> >> =============================================================
>> >>
>> >> The PVFS2 filesystem at /mnt/pvfs2/ appears to have problems.
>> >>
>> >> How can I solve it?
>> >>
>> >> Another question:
>> >> The ideal way is to produce the /etc/pvfs2-fs.conf just once with pvfs2-genconf /etc/pvfs2-fs.conf , or separately to each node?
>> >>
>> >> Many thanks,
>> >> Dimos.
>> >> _______________________________________________
>> >> Pvfs2-developers mailing list
>> >> Pvfs2-developers@beowulf-underground.org <mailto:Pvfs2-developers@beowulf-underground.org> >> >> http://www.beowulf-underground.org/mailman/listinfo/pvfs2-developers
>>
>>
>> _______________________________________________
>> Pvfs2-developers mailing list
>> Pvfs2-developers@beowulf-underground.org <mailto:Pvfs2-developers@beowulf-underground.org>
>> http://www.beowulf-underground.org/mailman/listinfo/pvfs2-developers
>
>
>
> --
> Becky Ligon
> OrangeFS Support and Development
> Omnibond Systems
> Anderson, South Carolina
>
>
>
>

--
Becky Ligon
OrangeFS Support and Development
Omnibond Systems
Anderson, South Carolina





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