[Lustre-discuss] Problem with Lustre and default ACL

[Gizo Nanava]

Hello,

   on our cluster where we have Scientific Linux 5.4 (64-bit, kernel 
2.6.18-164.11.1) and Lustre 1.8.2
we are experiencing problem with setting of  default ACLs.

According to rules, newly created files and directories in the directory 
with a default ACLs set, get
permissions of the parent directory, thus ignoring the value of umask.
As we have checked this is really the case on Linux with ext3, but we 
can not make this working in Lustre.

   Here is an example.

       On ACL enabled linux (Ubuntu Lucid,32-bit, kernel 
2.6.32-21-generic-pae):

 > mkdir noalc
 > mkdir acl
 > setfacl -d --set u::rwx,g::rx,g:atlas:rwx acl
 > getfacl -c acl
                default:user::rwx
                default:group::r-x
                default:group:atlas:rwx
                default:mask::rwx

 > umask 0777
 > mkdir noacl/dir
 > ls -l noacl
              d--------- 2 root root  .... dir

 >  mkdir acl/dir
 > getfacl -a acl/dir
               user::rwx
               group::r-x
               group:atlas:rwx
               mask::rwx

   So, here everything is okay.

  But, on Lustre the last command above looks as follows
 > getfacl --access --omit-header acl/dir
            user::---
            group::r-x                      #effective:---
            group:atlas:rwx            #effective:---
            mask::---

    So, the value of umask is not ignored.

  Does somebody else experience the same problem?
What could be wrong in our lustre setup? As usually ACL on MDS is 
enabled by mount -o acl..
The same problem is in lustre 1.6.6. Thank you very much for any help!

   Best wishes, Gizo Nanava