Following patch is posted and merged in upstream.
https://github.com/gluster/glusterfs/pull/1657

Hi All,

The bug fix is verified as below:

Old Build:
----------
# rpm -qa glusterfs-server glusterfs-fuse
glusterfs-server-6.0-49.el7rhgs.x86_64
glusterfs-fuse-6.0-49.el7rhgs.x86_64

# uname -a
Linux dhcp46-206.lab.eng.blr.redhat.com 3.10.0-1160.11.1.el7.x86_64 #1 SMP Mon Nov 30 13:05:31 EST 2020 x86_64 x86_64 x86_64 GNU/Linux

# cat /etc/system-release-cpe 
cpe:/o:redhat:enterprise_linux:7.9:ga:server

# localectl status
   System Locale: LANG=ja_JP.eucjp
       VC Keymap: in-eng
      X11 Layout: in
     X11 Variant: eng

# g pool list
UUID                                    Hostname        State
ac3425d7-f7a6-473d-957e-26ec135038a1    localhost       Connected 

# g peer probe 10.70.46.56
peer probe: failed: 10.70.46.56 is either already part of another cluster or having volumes configured

# grep -rin peer /var/log/glusterfs/ | grep ' E ' | grep '2021-01-29'
/var/log/glusterfs/glusterd.log:187:[2021-01-29 05:08:36.869844] E [MSGID: 106165] [glusterd-handshake.c:2018:__glusterd_mgmt_hndsk_version_cbk] 0-management: failed to get the 'versions' from peer (10.70.46.56:24007) [̵ʰ] <<< Statement in brackets is not in English

Current Build:
-------------
# rpm -qa glusterfs-server glusterfs-fuse
glusterfs-fuse-6.0-52.el8rhgs.x86_64
glusterfs-server-6.0-52.el8rhgs.x86_64

# uname -a
Linux dhcp47-78.lab.eng.blr.redhat.com 4.18.0-240.10.1.el8_3.x86_64 #1 SMP Wed Dec 16 03:30:52 EST 2020 x86_64 x86_64 x86_64 GNU/Linux

# cat /etc/system-release-cpe 
cpe:/o:redhat:enterprise_linux:8.3:ga

# localectl status
   System Locale: LANG=ja_JP.eucjp
       VC Keymap: in-eng
      X11 Layout: in
     X11 Variant: eng

# g pool list
UUID                                    Hostname        State
c0bcce30-419b-44cb-ad4f-2462e802e4a3    localhost       Connected 

# g peer probe 10.70.47.81
peer probe: failed: 10.70.47.81 is either already part of another cluster or having volumes configured

root@dhcp47-78  ~ > 
# grep -rin peer /var/log/glusterfs/ | grep ' E ' | grep '2021-01-29'
/var/log/glusterfs/glusterd.log:784:[2021-01-29 05:34:19.943504] E [MSGID: 106165] [glusterd-handshake.c:2018:__glusterd_mgmt_hndsk_version_cbk] 0-management: failed to get the 'versions' from peer (10.70.47.81:24007) [Invalid argument] <<< Statement in brackets is in English

Based on above, targeted patch from `https://github.com/gluster/glusterfs/pull/1657` is verified.

Moving this bug to verified, please comment/change status accordingly if needed.

Thanks,
Leela.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (glusterfs bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:1462