Re: file open for write fails under stress

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On Tue, Oct 14, 2008 at 12:51:50AM +0200, Omry Yadan wrote:
> I have an application that open many files for writing very fast, in a
> way - it can almost be looked as a file system stress test.
> 
> 
> my application is single threaded, and I noticed the following problem
> when running a single instance of it:
> 
> 
> at some point, after opening (and closing) many files for writing, the
> application fails to open a file for writing.

Do you know what error exactly the open is failing with?

--b.

> if I sleep for 1 second and try again, it works.
> 
> 
> my NFS server runs Debian etch 32 bit, with
> 
> nfs-kernel-server and nfs-common (1:1.0.10-6+etch.1).
> 
> 
> client is also etch 32.
> 
> kernel on both is :2.6.18-6-686 #1 SMP Tue Jun 17 21:31:27 UTC 2008 i686
> 
> 
> both machines are quad core.
> 
> 
> 
> I tried to mount with tcp and udp, and tried both sync and async export
> point.
> 
> 
> is this a known issue?
> 
> any known workaround that will not require messing up the application
> with retry logic?
> 
> 
>     Omry.
> 
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