NFS 0-byte problem

[Maxim Dounin]

Hello!

On Sat, Oct 29, 2011 at 09:59:43PM -0400, kernelheaders wrote:

> Brian Akins Wrote:
> -------------------------------------------------------
> > On Oct 28, 2011, at 9:18 PM, kernelheaders wrote:
> > 
> > > 
> > > We're using 12 x 600 GB SAS 15K Hard drives on
> > NetApp storage, so
> > > storage I/O operations very fast. But my problem
> > is not speed .
> > > 
> > 
> > 
> > The cache is expected to be used only by a single
> > nginx instance.  Sharing it will not work. The
> > cache is made up of the cache directory, temp
> > files, and shared memory.  
> > 
> > If you really need shared cache as well, then look
> > into using memc with srcache modules.
> 
> Can you please explain why only one distance ? If you have same cachekey
> and structure , cache work all intance even remote locations . 
> And system works well , sometimes and some servers occurs problem .

As Brian already wrote, nginx currently doesn't allow sharing of 
the same cache directory between several nginx instances.  It 
doesn't expect cache files to appear or be changed by another 
nginx instance.  If you share cache directory between multiple 
nginx instances - weird things will happen, and problem you see is 
one of them.

Maxim Dounin