OT - NFS group ignored [SOLVED]

[Emmett Culley]

On 07/25/2015 08:31 PM, Cameron Simpson wrote:
> On 26Jul2015 10:39, Ed Greshko <ed.greshko at greshko.com> wrote:
>> On 07/26/15 10:34, Cameron Simpson wrote:
>>> On 26Jul2015 08:06, Ed Greshko <ed.greshko at greshko.com> wrote:
>>>> But, FWIW, I'm trying to replicate a failure here and can't.
>>>
>>> My standard question in this situation is: how many groups is the user in on the client machine?
>>>
>> Well, in my non-failing case, just 2.
>>
>> Not heard of a limitation in that area.
> 
> Historically there was a 16 group protocol limit on what the client passed to the NFS server, so unless the file's group was in your first 15 secondary groups it would not be consulted for file access.
> 
> Let's see what the OP has to deal with.
> 
> Cheers,
> Cameron Simpson <cs at zip.com.au>

Turns out this is the clue I needed.  Using the search "NFS4 group ID limitations", I found this article:

http://www.xkyle.com/solving-the-nfs-16-group-limit-problem/

Running rpc.mountd --manage-gids on the server seems to have fixed my problem.  I don't know if that command is persistent, but I will soon  :-)

Thanks for all your suggestions.

Emmett