On Wed, Dec 14, 2005 at 02:21:34PM +0100, Maarten Litmaath wrote:
> Patrick Guio wrote:
>
> >On Wed, 14 Dec 2005, Maarten Litmaath wrote:
> >
> >Hi Maarten,
> >
> >>Do you automount the same directories on CE and WN? If so, try using the
> >
> >
> >Yes,
> >[dteam001@grid dteam001]$ df -Ph .
> >Filesystem Size Used Avail Use% Mounted on
> >/export/home/dteam001 10G 6.8G 2.8G 72% /home/dteam001
> >
> >[dteam001@compute-0-0 dteam001]$ df -Ph .
> >Filesystem Size Used Avail Use% Mounted on
> >grid.local:/export/home/dteam001 10G 6.8G 2.8G 72% /home/dteam001
> >
> >
> >>"noac" option for /home. As a test you could mount different directories
> >>for dteam001 and see if that helps.
> >
> >
> >Where and how should I set the "noac" option?
>
> In the /etc/auto.* file (or YP/NIS map) that describes how to mount /home.
> For example, it could be in /etc/auto.direct somewhat like this:
>
> /home -rw,intr,hard,noac grid.local:/export/home
Keep in mind that performance will suffer with this setting :(
noac Disable all forms of attribute caching entirely. This extracts a significant performance
penalty but it allows two different NFS clients to get reasonable results when both clients
are actively writing to a common export on the server.
Kostas
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