Service Unavailable (HTTP 503)和Unable to connect to WSGI daemon process 'keystone-admin' on '/run/ht

[root@master ~]# openstack service create  --name keystone --description "OpenStack Identity" identity
Service Unavailable (HTTP 503)
[root@master ~]#

[root@master keystone]# openstack service list
Service Unavailable (HTTP 503)

[root@master ~]# cd /var/log/httpd/
[root@master httpd]# ls
access_log           access_log-20170725  access_log-20170831  error_log-20170724  error_log-20170807  keystone-access.log
access_log-20170717  access_log-20170731  error_log            error_log-20170730  error_log-20170831  keystone-error.log
[root@master httpd]# vi keystone-error.log 

2017-11-01 14:10:03.594121 mod_wsgi (pid=19147): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19098.0.2.sock' after multiple attempts.
2017-11-01 14:11:52.656216 mod_wsgi (pid=19145): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19098.0.2.sock' after multiple attempts.
2017-11-01 14:13:18.034893 mod_wsgi (pid=19144): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19098.0.2.sock' after multiple attempts.
2017-11-01 14:20:19.668066 mod_wsgi (pid=19883): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.
2017-11-01 14:27:43.132432 mod_wsgi (pid=19885): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.
2017-11-01 14:34:13.570757 mod_wsgi (pid=19886): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.
2017-11-01 14:38:07.266293 mod_wsgi (pid=19882): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.
2017-11-01 14:40:48.584888 mod_wsgi (pid=19884): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.
2017-11-01 14:41:39.235653 mod_wsgi (pid=19883): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.
2017-11-01 14:42:53.061807 mod_wsgi (pid=19885): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.
2017-11-01 14:44:31.602943 mod_wsgi (pid=19886): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.
2017-11-01 14:45:27.431142 mod_wsgi (pid=19882): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.
2017-11-01 14:45:27.631051 mod_wsgi (pid=19884): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.
2017-11-01 14:45:40.939553 mod_wsgi (pid=19883): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.
2017-11-01 14:45:40.978780 mod_wsgi (pid=19885): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.
2017-11-01 14:45:46.671664 mod_wsgi (pid=19884): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.
2017-11-01 14:45:46.711924 mod_wsgi (pid=19883): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.
2017-11-01 14:45:53.167477 mod_wsgi (pid=19886): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.
2017-11-01 14:45:53.857388 mod_wsgi (pid=19884): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.
2017-11-01 14:45:54.364553 mod_wsgi (pid=19883): Unable to connect to WSGI daemon process 'keystone-admin' on '/run/httpd/wsgi.19871.0.2.sock' after multiple attempts.

[root@master conf.d]# pwd
/etc/httpd/conf.d
[root@master conf.d]# vim wsgi-keystone.conf

Listen 5000
Listen 35357

WSGISocketPrefix /var/run/wsgi

<VirtualHost *:5000>
    WSGIDaemonProcess keystone-public processes=5 threads=1 user=keystone group=keystone display-name=%{GROUP}
    WSGIProcessGroup keystone-public
    WSGIScriptAlias / /usr/bin/keystone-wsgi-public
    WSGIApplicationGroup %{GLOBAL}
    WSGIPassAuthorization On
    ErrorLogFormat "%{cu}t %M"
    ErrorLog /var/log/httpd/keystone-error.log
    CustomLog /var/log/httpd/keystone-access.log combined

    <Directory /usr/bin>
        Require all granted
    </Directory>
</VirtualHost>

<VirtualHost *:35357>
    WSGIDaemonProcess keystone-admin processes=5 threads=1 user=keystone group=keystone display-name=%{GROUP}
    WSGIProcessGroup keystone-admin
    WSGIScriptAlias / /usr/bin/keystone-wsgi-admin
    WSGIApplicationGroup %{GLOBAL}
    WSGIPassAuthorization On
    ErrorLogFormat "%{cu}t %M"
    ErrorLog /var/log/httpd/keystone-error.log
    CustomLog /var/log/httpd/keystone-access.log combined

    <Directory /usr/bin>
        Require all granted
    </Directory>
</VirtualHost>

[root@master conf.d]# systemctl restart httpd.service

[root@master conf.d]# openstack service list

[root@master conf.d]# 
[root@master conf.d]#  openstack service create \
>   --name keystone --description "OpenStack Identity" identity
+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Identity               |
| enabled     | True                             |
| id          | 242a271521f845988d0bab4921545d07 |
| name        | keystone                         |
| type        | identity                         |
+-------------+----------------------------------+
[root@master conf.d]#