[CentOS] Two NFS issues
duskglow at gmail.com
Mon Dec 1 19:10:52 UTC 2008
All 5.2 versions have this problem.
On Mon, Dec 1, 2008 at 11:03 AM, Akemi Yagi <amyagi at gmail.com> wrote:
> On Mon, Dec 1, 2008 at 10:32 AM, Russell Miller <duskglow at gmail.com>
> > Hi, I was hoping someone would have an idea of what's going on here...
> > We have two NFS issues. One of which is certainly centos based, one of
> > which we're not sure of.
> > First issue is: As of Centos 5, we can't make simultaneous access to a
> > directory via NFS. To duplicate, I cd into a share in two windows, copy
> > 1G file in the first window, and just do an ls in the other. The ls will
> > hang until the write is done.
> > Turning off apic seems to help a little, but there's still a very
> > significant hang.
> > This problem is not apparent in centos 4.x, even when mounting to the
> > NFS server.
> > The other problem is - we're seeing tremendous slowdowns when going
> > an Acopia NFS virtualization server. These slowdowns got much more
> > when we moved to Centos 5.2. If we connect to the NFS appliance
> > these slowdowns don't exist.
> > Has anyone seen problems like this? How did you solve them?
> What is the version of your kernel? There are (used to be) known
> issues with NFS in certain versions of the CentOS-5 kernels.
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