openstack安装dashboard后访问horizon出错

Question

如题，访问controller/horizon出错500：internal server error

apache/error.log出错信息如下：

[Sun Nov 27 03:35:40.350220 2016] [mpm_event:notice] [pid 3313:tid 140083000240000] AH00489: Apache/2.4.7 (Ubuntu) mod_wsgi/3.4 Python/2.7.6 configured -- resuming normal operations

[Sun Nov 27 03:35:40.350267 2016] [core:notice] [pid 3313:tid 140083000240000] AH00094: Command line: '/usr/sbin/apache2'

[Sun Nov 27 03:43:46.458437 2016] [mpm_event:notice] [pid 3313:tid 140083000240000] AH00491: caught SIGTERM, shutting down

[Sun Nov 27 05:05:03.495445 2016] [mpm_event:notice] [pid 3238:tid 139659907987328] AH00489: Apache/2.4.7 (Ubuntu) mod_wsgi/3.4 Python/2.7.6 configured -- resuming normal operations

[Sun Nov 27 05:05:03.555512 2016] [core:notice] [pid 3238:tid 139659907987328] AH00094: Command line: '/usr/sbin/apache2'

[Sun Nov 27 05:56:53.084779 2016] [core:error] [pid 3255:tid 139659661248256] [client 192.168.157.1:6059] End of script output before headers: django.wsgi

[Sun Nov 27 06:11:29.776677 2016] [mpm_event:notice] [pid 3238:tid 139659907987328] AH00493: SIGUSR1 received. Doing graceful restart

[Sun Nov 27 06:11:40.334294 2016] [mpm_event:notice] [pid 3238:tid 139659907987328] AH00489: Apache/2.4.7 (Ubuntu) mod_wsgi/3.4 Python/2.7.6 configured -- resuming normal operations

[Sun Nov 27 06:11:40.334432 2016] [core:notice] [pid 3238:tid 139659907987328] AH00094: Command line: '/usr/sbin/apache2'

[Sun Nov 27 06:17:21.963054 2016] [core:error] [pid 5214:tid 139659810662144] [client 192.168.157.1:6308] End of script output before headers: django.wsgi

[Sun Nov 27 06:47:06.036727 2016] [mpm_event:notice] [pid 3238:tid 139659907987328] AH00493: SIGUSR1 received. Doing graceful restart

[Sun Nov 27 06:47:11.888344 2016] [mpm_event:notice] [pid 3238:tid 139659907987328] AH00489: Apache/2.4.7 (Ubuntu) mod_wsgi/3.4 Python/2.7.6 configured -- resuming normal operations

[Sun Nov 27 06:47:11.888397 2016] [core:notice] [pid 3238:tid 139659907987328] AH00094: Command line: '/usr/sbin/apache2'

[Sun Nov 27 06:47:39.162800 2016] [mpm_event:notice] [pid 3238:tid 139659907987328] AH00493: SIGUSR1 received. Doing graceful restart

[Sun Nov 27 06:47:42.577268 2016] [core:error] [pid 5842:tid 139659703211776] [client 192.168.157.1:7524] End of script output before headers: django.wsgi

[Sun Nov 27 06:47:42.636704 2016] [mpm_event:notice] [pid 3238:tid 139659907987328] AH00489: Apache/2.4.7 (Ubuntu) mod_wsgi/3.4 Python/2.7.6 configured -- resuming normal operations

[Sun Nov 27 06:47:42.636744 2016] [core:notice] [pid 3238:tid 139659907987328] AH00094: Command line: '/usr/sbin/apache2'

[Sun Nov 27 06:53:07.710714 2016] [core:error] [pid 6066:tid 139659810662144] [client 192.168.157.1:7537] End of script output before headers: django.wsgi

/etc/openstack-dashboard/local_settings.py部分如下：（按照官网配置）

import os

from django.utils.translation import ugettext_lazy as _

from horizon.utils import secret_key

from openstack_dashboard import exceptions

from openstack_dashboard.settings import HORIZON_CONFIG

DEBUG = False

TEMPLATE_DEBUG = DEBUG

WEBROOT = '/'

OPENSTACK_API_VERSIONS = {

"identity": 3,

"image": 2,

"volume": 2,

}

OPENSTACK_KEYSTONE_MULTIDOMAIN_SUPPORT = True

OPENSTACK_KEYSTONE_DEFAULT_DOMAIN = "default"

LOCAL_PATH = os.path.dirname(os.path.abspath(__file__))

SECRET_KEY = secret_key.generate_or_read_from_file('/var/lib/openstack-dashboard/secret_key')

SESSION_ENGINE = 'django.contrib.sessions.backends.cache'

CACHES = {

'default': {

     'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',

     'LOCATION': '192.168.157.11:11211',

}

}

EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'

OPENSTACK_HOST = "controller"

OPENSTACK_KEYSTONE_URL = "http://%s:5000/v3" % OPENSTACK_HOST

OPENSTACK_KEYSTONE_DEFAULT_ROLE = "user"

IMAGE_RESERVED_CUSTOM_PROPERTIES = []

API_RESULT_LIMIT = 1000

API_RESULT_PAGE_SIZE = 20

SWIFT_FILE_TRANSFER_CHUNK_SIZE = 512 * 1024

DROPDOWN_MAX_ITEMS = 30

TIME_ZONE = "UTC"

ALLOWED_HOSTS = ['*', ]