Re: Cephfs losing files and corrupting others

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On Tue, Dec 4, 2012 at 1:57 PM, Gregory Farnum <greg@xxxxxxxxxxx> wrote:
> On Sun, Nov 25, 2012 at 12:45 PM, Nathan Howell
> <nathan.d.howell@xxxxxxxxx> wrote:
>> So when trawling through the filesystem doing checksum validation
>> these popped up on the files that are filled with null bytes:
>> https://gist.github.com/186ad4c5df816d44f909
>>
>> Is there any way to fsck today? Looks like feature #86
>> http://tracker.newdream.net/issues/86 isn't implemented yet.
>
> Yeah, unfortunately there isn't — fsck is one of those things that we
> want to do as we prepare CephFS for production use, but we're only now
> starting to move back in that direction.
>
> The error printouts you're seeing indicate that...actually, I don't
> know what they mean in this context. Hrm. In any case, Zheng Yan
> contributed some patches that could impact a number of these issues,
> but I still don't see how the NULL bytes could enter into it from our
> end.

Oooh, actually, Zheng's patches are definitely related to this issue.
If you can try the "next" branch, that might resolve it going forward
(it won't repair current damage, though).
-Greg
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