[Lustre-discuss] Oss Error and 0 byte files

[Gabriele Paciucci]

Hi Luca,
the error mean: ost grant more space than there is avaiable!!!
You could check in the proc filesystem of yours client checking the 
cur_grant_bytes to  check how much grant space those clients take.



On 09/08/2010 05:02 PM, Gianluca Tresoldi wrote:
> Hello everyone
>
> I've an installation with Lustre 1.8.2, Centos 5, x86_64 and  I 
> encountered this problem:
>
> After several months of smooth operation, client begin to write empty 
> files without log error,from their point of view writing was successful.
>
> OSS wrote, in their log, several lines like:
> Sep  8 12:40:31 tgoss-0200 kernel: LustreError: 
> 5816:0:(filter_io.c:183:filter_grant_space_left()) lfs01-OST0000: cli 
> 20d94382-3300-f12e-65d1-c0f1743e1e20/ffff8106a4e30a00 grant 
> 39956230144 > available 39956226048 and pending 0
>
> I checked the availability of space and inodes, but this is not the 
> problem.
>
> the problem goes away by rebooting ost.
>
> This is the second time I have, first at july 2010, second september 2010.
>
> Any ideas?It's a bug?
>
> Thanks
> -- 
> Gianluca Tresoldi
> ***SysAdmin***
> ***Demon's Trainer***
> Tuttogratis Italia Spa
> E-mail: gianluca.tresoldi at tuttogratis.com
> http://www.tuttogratis.it
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-- 
_Gabriele Paciucci_ http://www.linkedin.com/in/paciucci

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