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

Anirban Ghoshal <chalcogen_eg_oxygen@xxxxxxxxx> · Sun, 2 Feb 2014 16:21:04 +0800 (SGT)

Hi Ravi, 

Many thanks for the super-quick turnaround on this!
Didn't know about this one quirk os chown, so thanks for that as well.

Anirban

     On Thursday, 30 January 2014 9:22 AM, Ravishankar N <ravishankar@xxxxxxxxxx> wrote:

    Hi Anirban,

      Thanks for taking the time off to file the bugzilla bug report.
      The fix has been sent for review upstream
      (http://review.gluster.org/#/c/6862/). Once it is merged, I will
      backport it to 3.4 as well.    

      Regards,

      Ravi

      On 01/28/2014 02:07 AM, Chalcogen wrote:

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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