Re: ghost files and error code 13 (mysql binlog files)

[mimo <mimo@restoel.net>]

Hi Simon and everyone else, thanks for your help (and slagging off my beloved 
resierfs). The fsck.reiserfs pointed me to rebuild-tree which took about 4 
hours to complete (this is on a 100Gb raid 1 partition).
In your experience does this always point to a hardware problem?

Thanks,

mimo

On Tuesday 26 February 2008 10:51:34 Simon Pither wrote:
> Hi,
>
> On Mon, 2008-02-25 at 19:53 +0000, mimo wrote:
> >  ?--------- ? ?     ?            ?                ?
> > /var/log/mysql/bin.000744 ?--------- ? ?     ?            ?              
> >  ? /var/log/mysql/bin.000774
> >
> > # stat /var/log/mysql/bin.000744
> >  stat: cannot stat `/var/log/mysql/bin.000744': Permission denied
> >
> > This is a reiserfs filesystem on Linux 2.6.18-5-686 #1 SMP Wed Oct 3
> > 00:12:50 UTC 2007 i686 GNU/Linux (debian/etch)
>
> I have seen symptoms like this before and it has been a sign of reiserfs
> corruption.  I would suggest something along the lines of:
>
> * ensure your backups are current
> * unmount the partition
> * fsck.reiserfs --check <device>
>
> This will either tell you that there are fixable corruptions, so run:
>
> * fsck.reiserfs --fix-fixable <device>
>
> Or it will report fatal corruptions, in which case run:
>
> * fsck.reiserfs --rebuild-tree <device>
>
> The output from --fix-fixable may also tell you that it couldn't fix
> everything and you need to run --rebuild-tree as well.  Also if
> --fix-fixable doesn't seem to do the trick, you may need to try
> --rebuild-tree anyway.
>
> * remount partition
>
>
> I do suggest you "man fsck.reiserfs" before doing any of this.
>
> The fsck.reiserfs runs will take a while on a large partition and may
> require (multiple) confirmation during the process to save their
> changes.
>
> Please be aware that while I've never seen --rebuild-tree make things
> worse, I've heard reports from people who have!  Make sure you have
> backups.
>
> Simon