lhecking@xxxxxxxxxxxxxxxxxxxxx wrote:
> We're experiencing problems with some legacy software when it comes to NFS
> access. Even though files are visible in a terminal and can be accessed with
> standard shell tools and vi, this software typically complains that the files
> are empty or not syntactically correct.
>
> The NFS filesystems in question are 8TB+ XFS filesystems mounted with
> "delaylog,inode64,logbsize=32k,logdev=/dev/sda2,nobarrier,quota" options,
> and I suspect that inode64 may have to do with the observed behaviour. The
> server is running CentOS 6.3 + all patches.
>
> The clients exhibiting the problem are running CentOS 5.4 and CentOS 5.8
> x84_64. Interesting enough, the application (which is available in 32-bit
> only) appears to work fine on RHEL3 32-bit; we have no CentOS5 32-bit
> systems to test.
>
> I was wondering if anyone has seen such behaviour and whether it can be
> corrected using nfs mount options. The only other solution I have at the
> moment is reformatting to ext4, i.e. ugly.
I would suspect the inode64 option is the problem
We had similar issues running 32 bit apps on a 64 bit clients accessing
'large' NFS servers (non-Linux NFS servers) - the 'fix' was to make sure
the file systems were exported/mounted with 32 bit inode compatibility
I believe in our case the 32 bit apps in question were not compiled with
large file support (they are/were 3rd party apps). I think if they were
compiled with large file support, then they would work OK.
James Pearson
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