Why unable to start Gluster-Swift services using 'systemctl' on Red Hat Gluster Storage 3.1 ISO ?

Issue

• Why unable to start Gluster-Swift services using 'systemctl' on Red Hat Gluster Storage 3.1 ISO ?

• Did 'systemctl' supported for gluster swift services other than 'swift-init' for starting gluster swift ?

• Unable to start gluster swift services with 'systemctl' on Red Hat Gluster Storage 3.1 based on Red Hat Enterprise Linux 7.1 ?

~snippet from terminal,

[root@gluster-swift ~]# systemctl status openstack-swift-proxy openstack-swift-account openstack-swift-container openstack-swift-object
openstack-swift-proxy.service - OpenStack Object Storage (swift) - Proxy Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-swift-proxy.service; disabled)
   Active: failed (Result: exit-code) since Thu 2015-11-05 13:52:59 GMT; 11s ago
  Process: 13049 ExecStart=/usr/bin/swift-proxy-server /etc/swift/proxy-server.conf (code=exited, status=1/FAILURE)
 Main PID: 13049 (code=exited, status=1/FAILURE)

Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-proxy-server[13049]: Traceback (most recent call last):
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-proxy-server[13049]: File "/usr/bin/swift-proxy-server", line 23, in <module>
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-proxy-server[13049]: sys.exit(run_wsgi(conf_file, 'proxy-server', default_port=8080, **options))
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-proxy-server[13049]: File "/usr/lib/python2.7/site-packages/swift/common/wsgi.py", line 383, in run_wsgi
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-proxy-server[13049]: drop_privileges(conf.get('user', 'swift'))
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-proxy-server[13049]: File "/usr/lib/python2.7/site-packages/swift/common/utils.py", line 1219, in drop_privileges
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-proxy-server[13049]: os.setgid(user[3])
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-proxy-server[13049]: OSError: [Errno 1] Operation not permitted       <<================
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net systemd[1]: openstack-swift-proxy.service: main process exited, code=exited, status=1/FAILURE
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net systemd[1]: Unit openstack-swift-proxy.service entered failed state.

openstack-swift-account.service - OpenStack Object Storage (swift) - Account Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-swift-account.service; disabled)
   Active: failed (Result: exit-code) since Thu 2015-11-05 13:52:59 GMT; 11s ago
  Process: 13050 ExecStart=/usr/bin/swift-account-server /etc/swift/account-server.conf (code=exited, status=1/FAILURE)
 Main PID: 13050 (code=exited, status=1/FAILURE)

Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-account-server[13050]: Traceback (most recent call last):
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-account-server[13050]: File "/usr/bin/swift-account-server", line 24, in <module>
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-account-server[13050]: 'account-server', default_port=6002, **options))
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-account-server[13050]: File "/usr/lib/python2.7/site-packages/swift/common/wsgi.py", line 383, in run_wsgi
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-account-server[13050]: drop_privileges(conf.get('user', 'swift'))
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-account-server[13050]: File "/usr/lib/python2.7/site-packages/swift/common/utils.py", line 1219, in drop_privileges
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-account-server[13050]: os.setgid(user[3])
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-account-server[13050]: OSError: [Errno 1] Operation not permitted
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net systemd[1]: openstack-swift-account.service: main process exited, code=exited, status=1/FAILURE
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net systemd[1]: Unit openstack-swift-account.service entered failed state.

openstack-swift-container.service - OpenStack Object Storage (swift) - Container Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-swift-container.service; disabled)
   Active: failed (Result: exit-code) since Thu 2015-11-05 13:52:59 GMT; 11s ago
  Process: 13051 ExecStart=/usr/bin/swift-container-server /etc/swift/container-server.conf (code=exited, status=1/FAILURE)
 Main PID: 13051 (code=exited, status=1/FAILURE)

Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-container-server[13051]: Traceback (most recent call last):
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-container-server[13051]: File "/usr/bin/swift-container-server", line 24, in <module>
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-container-server[13051]: 'container-server', default_port=6001, **options))
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-container-server[13051]: File "/usr/lib/python2.7/site-packages/swift/common/wsgi.py", line 383, in run_wsgi
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-container-server[13051]: drop_privileges(conf.get('user', 'swift'))
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-container-server[13051]: File "/usr/lib/python2.7/site-packages/swift/common/utils.py", line 1219, in drop_privileges
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-container-server[13051]: os.setgid(user[3])
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-container-server[13051]: OSError: [Errno 1] Operation not permitted       <<====================
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net systemd[1]: openstack-swift-container.service: main process exited, code=exited, status=1/FAILURE
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net systemd[1]: Unit openstack-swift-container.service entered failed state.

openstack-swift-object.service - OpenStack Object Storage (swift) - Object Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-swift-object.service; disabled)
   Active: failed (Result: exit-code) since Thu 2015-11-05 13:52:59 GMT; 11s ago
  Process: 13052 ExecStart=/usr/bin/swift-object-server /etc/swift/object-server.conf (code=exited, status=1/FAILURE)
 Main PID: 13052 (code=exited, status=1/FAILURE)

Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-object-server[13052]: Traceback (most recent call last):
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-object-server[13052]: File "/usr/bin/swift-object-server", line 27, in <module>
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-object-server[13052]: **options))
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-object-server[13052]: File "/usr/lib/python2.7/site-packages/swift/common/wsgi.py", line 383, in run_wsgi
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-object-server[13052]: drop_privileges(conf.get('user', 'swift'))       <<====================
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-object-server[13052]: File "/usr/lib/python2.7/site-packages/swift/common/utils.py", line 1219, in drop_privileges
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-object-server[13052]: os.setgid(user[3])
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net swift-object-server[13052]: OSError: [Errno 1] Operation not permitted
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net systemd[1]: openstack-swift-object.service: main process exited, code=exited, status=1/FAILURE
Nov 05 13:52:59 hh-rhs-ap41.lnx.lr.net systemd[1]: Unit openstack-swift-object.service entered failed state.