[Bugs] [Bug 1651498] [geo-rep]: Failover / Failback shows fault status in a non-root setup

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1651498



--- Comment #2 from Kotresh HR <khiremat at redhat.com> ---
Summary:

geo-rep: Fix permissions with non-root setup

Problem:
    In non-root fail-over/fail-back(FO/FB), when slave is
    promoted as master, the session goes to 'Faulty'

Cause:
    The command 'gluster-mountbroker <mountbroker-root> <group>'
    is run as a pre-requisite on slave in non-root setup.
    It modifies the permission and group of following required
    directories and files recursively

      [1] /var/lib/glusterd/geo-replication
      [2] /var/log/glusterfs/geo-replication-slaves

    In a normal setup, this is executed on slave node and hence
    doing it recursively is not an issue on [1]. But when original
    master becomes slave in non-root during FO/FB, it contains
    ssh public keys and modifying permissions on them causes
    geo-rep to fail with incorrect permissions.

Fix:
    Don't do permission change recursively. Fix permissions for
    required files.

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