File (setuid) permission changes during volume heal - possible bug?

Chalcogen <chalcogen_eg_oxygen@xxxxxxxxx> · Tue, 28 Jan 2014 02:07:14 +0530



    Hi,

      
      I am working on a twin-replicated setup (server1 and server2) with
      glusterfs 3.4.0. I perform the following steps:

      
      Create a distributed volume 'testvol'
          with the XFS brick server1:/brick/testvol on server1, and
          mount it using the glusterfs native client at /testvol.

          
      I copy the following file to /testvol:

        server1:~$ ls -l /bin/su

        -rwsr-xr-x 1
                root root 84742 Jan 17  2014 /bin/su

        server1:~$ cp -a /bin/su /testvol

        
      Within /testvol if I list out the file I
          just copied, I find its attributes intact.

        
      Now, I add the XFS brick
          server2:/brick/testvol.

        server2:~$ gluster volume
                add-brick testvol replica 2
        server2:/brick/testvol

        
          At this point, heal kicks in and the file is replicated on
          server 2.

          
      If I list out su in testvol on either
          server now, now, this is what I see.

        server1:~$ ls -l /testvol/su

          -rwsr-xr-x
                  1 root root 84742 Jan 17  2014 /bin/su

          
          server2:~$ ls
                  -l /testvol/su

          -rwxr-xr-x
                  1 root root 84742 Jan 17  2014 /bin/su
    
    That is, the 's' file mode gets changed
              to plain 'x' - meaning, all the attributes are not
              preserved upon heal completion. Would you consider this a
              bug? Is the behavior different on a higher release?

              
              Thanks a lot.

              Anirban

          
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