My hourly argus data files from time to time freeze up any ra tools that touch them

[Chris Wilson]

Hi Claudio,

On Fri, 24 Sep 2010, Claudio Luck wrote:

> I can confirm that this (also) happens when running an archive over 
> NFSv3 and works fine instead when using a local XFS storage. I think 
> there is a different handling of concurrent writes in NFS (v3 at least) 
> compared to local file-systems (Linux). There must be some assumption in 
> how the files are written in rasplit that only holds for local 
> file-systems.

Is the NFS export mounted with the sync or async option? With async, you 
get much better performance because the client caches and groups writes to 
the server, but concurrent access could cause exactly this kind of 
corruption.

You could try adding the "sync" option to your mount and see if that 
solves corruption issues?

Cheers, Chris.
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