Re: possible fio bug, file not found in hash, cannot open file

[Jens Axboe <jaxboe@fusionio.com>]

On 2010-09-30 04:57, DongJin Lee wrote:
> Hi all.
> 
> System: ubuntu 10.04 x32 and x64
> 
> I'm trying to use xtreemfs (distributed file system), which I got it
> successfully mounted (it uses fusermount, current version I have is
> 2.8.1),
> so I can write, read, (including gnome drap drog, etc) and do some
> file benchmarks using dbench (testing windows file server) to that
> mounted directory, without any problems.
> Also, I've used iozone benchmark without a problem, so it appears that
> the filesystem works fine.
> 
> However, when I tried to run fio (including the latest version
> 1.44-rc1), I keep getting an 'Invalid argument error', I have no idea
> because this does not happen on other file systems, (e.g., nfs, etc)
> I think the error occurs somewhere getting the file information..
> 
> randread: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
> Starting 1 process
> fio: pid=12627, err=22/file:filesetup.c:493,
> func=open(/media/xtreemfs/afile), error=Invalid argument

Try making that direct=0 instead, probably the fs does not support
O_DIRECT.

-- 
Jens Axboe