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On 01/19/2017 03:49 AM, Lincoln Bryant wrote:
> On 1/18/2017 7:30 PM, Adrian Sevcenco wrote:
>> Hi! Is there a possibility of localroot content to be repaired or
>> rebuilt?
>>
>> I ask because it would seem to me that localroot is a single point of
>> failure : i have a situation where the first storage partition (where
>> also localroot is placed) is offline (waiting for drive replacement)
>> but because of this xrootd services are disabled. (and all other
>> partitions are not used.)
>> I could have moved the localroot directory to the OS disk, but i am
>> worried that if i lose the localroot content i lose the whole data
>> stored on that server (the data remains but is no longer accessible).
>>
>> So, is it possible to reconstruct localroot content based on the
>> actual content from oss.space paths?
>>
>> Thank you!
>> Adrian
>>
>>
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>
>
> Hi Adrian,
Hi!

> As I recall, there's an extended attribute called "user.XrdFrm.Pfn". So
> if you look at the files in oss.space, you can grab the attribute like
> this:
>
> # cd /data/pool1/public/00
> # getfattr -d 09172E58E91400000000c0aae37c000300000C6%
> # file: 09172E58E91400000000c0aae37c000300000C6%
> user.XrdFrm.Pfn="/data/xrootd/atlas/uct3/data/users/blahblahblah/foo/bar/baz.root"
>
>
> From there you should be able to whip up a script to reconstruct the
> namespace. Hope that helps.
Thank you!!! I could use this on newer servers ... unfortunately on my 
old servers (old data) the files does not have any extended attribute 
set up (even if the partition is mounted with user_xattr)

I thought that maybe frm_admin would convert and set up the extended 
attributes but it did not.

Does anyone know if the files attributes can be fixed?

Thank you!
Adrian



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