[Lustre-devel] Flush on file close

[Oleg Drokin]

Actually this is already being done. We do set AS_error (or something like that).
There is only one exception where on eviction we forgot to implement this, I think.

On Apr 19, 2010, at 10:34 PM, Andreas Dilger wrote:

> One thing we can do to improve this situation a bit is to return any  
> previous write error codes at close time.
> 
> Cheers, Andreas
> 
> On 2010-04-19, at 12:30, Andrew Perepechko <Andrew.Perepechko at Sun.COM>  
> wrote:
> 
>> Some applications expect non-zero errno on close() for any errors  
>> that may
>> happen during flushing dirty cached data/metadata even though linux  
>> manual
>> page for close(2) suggests that fsync(2) should be used prior to  
>> close(2) in
>> order to detect problems like those.
>> 
>> Since syncing may degrade performance to a large extent, what do you  
>> think is
>> the best/most convenient/least intrusive way to switch to that  
>> behaviour?
>> Should it be a mount option for the client or anything else?
>> 
>> Andrew.
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