[Bugs] [Bug 1752429] New: Cannot see the "trusted.glusterfs.mdata" xattr for directory on a new brick after rebalance

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1752429

            Bug ID: 1752429
           Summary: Cannot see the "trusted.glusterfs.mdata" xattr for
                    directory on a new brick after rebalance
           Product: GlusterFS
           Version: 7
            Status: NEW
         Component: ctime
          Severity: medium
          Priority: medium
          Assignee: bugs at gluster.org
          Reporter: khiremat at redhat.com
                CC: amukherj at redhat.com, bugs at gluster.org,
                    khiremat at redhat.com, moagrawa at redhat.com,
                    nchilaka at redhat.com, rgowdapp at redhat.com,
                    rhs-bugs at redhat.com, saraut at redhat.com,
                    storage-qa-internal at redhat.com, vdas at redhat.com
        Depends On: 1728673, 1734026
            Blocks: 1696809, 1752413
  Target Milestone: ---
    Classification: Community



Description of problem:
The "trusted.glusterfs.mdata" xattr was present on a dir on brick1 when it was
created, but when added new brick (brick2) to the volume, and did rebalance as
well, the xattr was not present on the dir on new brick(brick2).

Version-Release number of selected component (if applicable):
mainline

How reproducible:
Always

Steps to Reproduce :
===================
1.Create a 1 brick distributed volume.
2.Mount the volume on a client node using fuse.
3.Create a dir on client node
  #mkdir dir1
4.Check all the internal xattrs for the dir1 on the back-end using:
  #getfattr -de hex -m . /bricks/brick1/dir1
5.Add a new brick to the volume.
6.Trigger rebalance on the volume and let it complete.
7.Check all the internal xattrs for the dir1 on the back-end (old_brick and
new_brick) using:
  #getfattr -de hex -m . /bricks/brick1/dir1


Actual Results:
==============
[root at dhcp46-63 ~]# getfattr -de hex -m . /bricks/brick8/vol6-b1/dir1   
<------ Old brick
getfattr: Removing leading '/' from absolute path names
# file: bricks/brick8/vol6-b1/dir1
security.selinux=0x73797374656d5f753a6f626a6563745f723a676c7573746572645f627269636b5f743a733000
trusted.gfid=0xeb91e43ca84147ef872a31b119e7c1d4
trusted.glusterfs.dht=0xe92e902a000000007fffffffffffffff
trusted.glusterfs.dht.mds=0x00000000
trusted.glusterfs.mdata=0x010000000000000000000000005d25d1bd0000000021374da7000000005d25d1bd0000000021374da7000000005d25d1bd0000000021374da7



[root at dhcp47-188 dir1]# getfattr -de hex -m . /bricks/brick8/vol6-b2/dir1  
<----- New brick
getfattr: Removing leading '/' from absolute path names
# file: bricks/brick8/vol6-b2/dir1
security.selinux=0x73797374656d5f753a6f626a6563745f723a676c7573746572645f627269636b5f743a733000
trusted.gfid=0xeb91e43ca84147ef872a31b119e7c1d4
trusted.glusterfs.dht=0xe92e902a00000000000000007ffffffe



Expected Results:
=================

As the trusted.glusterfs.mdata is an internal xattr, it should also behave like
other xattrs (e.g. trusted.glusterfs.dht) and be present on dir1 on new brick
as well.


Rebalance status output:
=======================

[root at dhcp47-88 ~]# gluster v rebal vol6 status
                                    Node Rebalanced-files          size      
scanned      failures       skipped               status  run time in h:m:s
                               ---------      -----------   -----------  
-----------   -----------   -----------         ------------     --------------
                            10.70.47.188                0        0Bytes        
    0             0             0            completed        0:00:00
                             10.70.46.63                0        0Bytes        
    0             0             0            completed        0:00:00
volume rebalance: vol6: success


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1728673
[Bug 1728673] Cannot see the "trusted.glusterfs.mdata" xattr for directory on a
new brick after rebalance
https://bugzilla.redhat.com/show_bug.cgi?id=1734026
[Bug 1734026] Cannot see the "trusted.glusterfs.mdata" xattr for directory on a
new brick after rebalance
https://bugzilla.redhat.com/show_bug.cgi?id=1752413
[Bug 1752413] ctime: Cannot see the "trusted.glusterfs.mdata" xattr for
directory on a new brick after rebalance
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