CRITICAL sahara [-] error: [Errno 98] Address already in use

I use  Openstack Kilo version  and  I use sahara  service. It is give  me error  when  system restart. My sahara.log file follow  like ;

WARNING keystonemiddleware.auth_token [-] Use of the auth_admin_prefix, auth_host, auth_port, auth_protocol, identity_uri, admin_token, ad$

2016-02-25 04:06:43.378 1700 INFO keystonemiddleware.auth_token [-] Using /tmp/keystone-signing-sPU2E2 as cache directory for signing certificate

2016-02-25 04:06:43.380 1700 INFO sahara.main [-] Driver distributed successfully loaded

2016-02-25 04:06:43.381 1700 CRITICAL sahara [-] error: [Errno 98] Address already in use

2016-02-25 04:06:43.381 1700 ERROR sahara Traceback (most recent call last):

2016-02-25 04:06:43.381 1700 ERROR sahara File "/usr/bin/sahara-api", line 10, in <module>

2016-02-25 04:06:43.381 1700 ERROR sahara sys.exit(main())

2016-02-25 04:06:43.381 1700 ERROR sahara File "/usr/lib/python2.7/site-packages/sahara/cli/sahara_api.py", line 56, in main

2016-02-25 04:06:43.381 1700 ERROR sahara server.start_server(app)

2016-02-25 04:06:43.381 1700 ERROR sahara File "/usr/lib/python2.7/site-packages/sahara/main.py", line 217, in start_server

2016-02-25 04:06:43.381 1700 ERROR sahara server.start(app)

2016-02-25 04:06:43.381 1700 ERROR sahara File "/usr/lib/python2.7/site-packages/sahara/utils/wsgi.py", line 143, in start

2016-02-25 04:06:43.381 1700 ERROR sahara self.sock = eventlet.listen((CONF.host, CONF.port), backlog=500)

2016-02-25 04:06:43.381 1700 ERROR sahara File "/usr/lib/python2.7/site-packages/eventlet/convenience.py", line 43, in listen

2016-02-25 04:06:43.381 1700 ERROR sahara sock.bind(addr)

2016-02-25 04:06:43.381 1700 ERROR sahara File "/usr/lib64/python2.7/socket.py", line 224, in meth

2016-02-25 04:06:43.381 1700 ERROR sahara return getattr(self._sock,name)(*args)

2016-02-25 04:06:43.381 1700 ERROR sahara error: [Errno 98] Address already in use

2016-02-25 04:06:43.381 1700 ERROR sahara

2016-02-25 04:07:30.425 1536 INFO keystonemiddleware.auth_token [-] Auth Token confirmed use of None apis

Can I solve this problem ?