samba - Mar 2016 - NT_STATUS_ACCESS_DENIED messages

We used successfully samba 3.5.15-74.fc15 in our production (animation studio).
It was installed on FC15 on ext4 volume.
Now, we got new hardware and tried fresh software installation:
it is CentOS7, with Samba 4.1.12 and XFS volumes.
So, now we got strange problem. Some production software (Autodesk Maya2016) got
errors trying to work with files. There is no such problem with Samba3.
For instance, we want to get software render - i.e. generate some files on samba
share. But we got error message with “permission error” in Maya log. The files
appeared in appropriate folder, but all of them are truncated - about 100 byte
length instead of hundred of bytes. The very strange moment, that this error
depend on file type to generate. .iff files are ok, but most all others (png,
tiff, psd) - generates errors.
Samba log files contains some NT_STATUS_ACCESS_DENIED messages. But all the
files are available from clients and there is no problem to create folder\files
as the software requires.
What may be the reason? How can we solve that?

Am 20.03.2016 um 19:47 schrieb Михаил Прокопенко:
> We used successfully samba 3.5.15-74.fc15 in our production (animation
studio). It was installed on FC15 on ext4 volume.
> Now, we got new hardware and tried fresh software installation:
> it is CentOS7, with Samba 4.1.12 and XFS volumes.
> So, now we got strange problem. Some production software (Autodesk
Maya2016) got errors trying to work with files. There is no such problem with
Samba3.
> For instance, we want to get software render - i.e. generate some files on
samba share. But we got error message with “permission error” in Maya log. The
files appeared in appropriate folder, but all of them are truncated - about 100
byte length instead of hundred of bytes. The very strange moment, that this
error depend on file type to generate. .iff files are ok, but most all others
(png, tiff, psd) - generates errors.
> Samba log files contains some NT_STATUS_ACCESS_DENIED messages. But all the
files are available from clients and there is no problem to create folder\files
as the software requires.
> What may be the reason? How can we solve that?
let me guess: Apple clients?

well, we recently copied a netatalk-share containg around 300 GB to a 
samba share and had all sorts of such "fun" up to Finder pretending
you
have no permissions ofr copy a specific file while all had 2777

frankly we where able to copy teh offedning image-file to the desktop 
but no permissions to copy it to the samba sahre

Apple clients and permissions issue are a own world
"NT_STATUS_ACCESS_DENIED messages" are likely not responsible

however, you need to provide config details

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