nginx 0.7.59 open_file_cache and NFS

[andan andan]

2009/6/10 Igor Sysoev <is at rambler-co.ru>:
> On Wed, Jun 10, 2009 at 11:49:00AM +0200, andan andan wrote:
>
>> We have two nginx serving static objects from a shared NFS partition,
>> and we are using open_file_cache for performance purposes:
>>
>> With nginx 0.6.x, when the developers uploads files, during a few
>> seconds (less than 30s) we see this errors in logs:
>>
>> [alert] 2721#0: *75303 sendfile() failed (116: Stale NFS file handle)
>> while sending response to client, client: XXX ....
>>
>> I understand that is a normal behaviour because we are using a open_file_cache.
>>
>> But, when we upgrade to nginx 0.7.59 the same errors appears
>> indefinitely (and of course we are sending corrupted objects or
>> blank), it seems that, open_file_cache_valid is been ignored in new
>> version.
>>
>> Any idea, tip or recomendation ?
>>
>> In other hand, is recomended the use of open_file_cache, until now, we
>> are very happy with it.
>
> What OS do you using on NFS client and server side ?

Client: RHEL5
2.6.18-128.1.10.el5 x86_64

Server: NAS EMC Celerra NS40

> How files are uploaded - simple cp or
>
> cp file file.temp
> rm file
> mv file.temp file

Normally, they uploads files via scp, but editing a file by hand the
errors appears on the same way.

>
> I believe in later case NFS should provide atomic operation.

Is this related to async/sync mount options ?

Thanks you Igor.
BR.