Re: [Moosefs-users] cannot read the file ./metadata_ml.mfs.back

[Anh K. H. <ky...@vi...>]

On Mon, 22 Nov 2010 08:24:36 +0100
Michał Borychowski <mic...@ge...> wrote:

> First, you should start to recover the metadata from the master
> server. So backup "metadata.mfs.back" on the master server and
> later run "mfsmetarestore -a" on the master server. 

I tried all these methods but none is success :(


> 
> On the other hand please send to me the metadata_ml.mfs.back file -
> we would like to have a look at it.

The meta file is quite big (190MB). Is this a critical problem when publishing this file ?

Regards,


> 
> Thank you
> Michał Borychowski 
> 
> 
> -----Original Message-----
> From: Anh K. Huynh [mailto:ky...@vi...] 
> Sent: Sunday, November 21, 2010 12:14 PM
> To: moosefs-users
> Subject: [Moosefs-users] cannot read the file ./metadata_ml.mfs.back
> 
> Hi,
> 
> My master crashed. I am trying to restore the file system from the
> meta logger, but the file metadata.mfs.back is unreadable:
> 
> /------------------------------------------------------------
> | $ < mfsmetarestore  -m ./metadata_ml.mfs.back -o u.mfs
> changelog_ml.*.mfs | loading objects (files,directories,etc.) ... ok
> | loading names ... loading edge: read error: Success
> | error
> | can't read metadata from file: ./metadata_ml.mfs.back
> \------------------------------------------------------------
> 
> What's wrong? There are many files changelog*, but there's only a
> file metadata and it's unreadable now. How can I recovery from this
> error?
> 
> Regards,
> 


-- 
Anh Ky Huynh at UTC+7