Public bug reported:
Following these instructions: https://docs.openstack.org/horizon/2024.1/install/install-ubuntu.html CACHES = { 'default': { 'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache', 'LOCATION': 'controller:11211', } } dpkg -l | grep openstack ii openstack-dashboard 4:24.0.0-0ubuntu1.2~cloud0 all Django web interface for OpenStack Started with this error: Could not find backend 'django.core.cache.backends.memcached.MemcachedCache': Module "django.core.cache.backends.memcached" does not define a "MemcachedCache" attribute/class InvalidCacheBackendError at /auth/login/ Could not find backend 'django.core.cache.backends.memcached.MemcacheCache': Module "django.core.cache.backends.memcached" does not define a "MemcacheCache" attribute/class Request Method: GET Request URL: http://localhost:9098/horizon/auth/login/?next=/horizon/ Django Version: 4.2.11 Exception Type: InvalidCacheBackendError Exception Value: Could not find backend 'django.core.cache.backends.memcached.MemcacheCache': Module "django.core.cache.backends.memcached" does not define a "MemcacheCache" attribute/class Exception Location: /usr/lib/python3/dist-packages/django/core/cache/__init__.py, line 49, in create_connection Python Executable: /usr/bin/python3 Python Version: 3.10.12 Python Path: ['/usr/lib/python3/dist-packages', '/usr/lib/python310.zip', '/usr/lib/python3.10', '/usr/lib/python3.10/lib-dynload', '/usr/local/lib/python3.10/dist-packages', '/usr/lib/python3/dist-packages', '/usr/lib/python3/dist-packages/openstack_dashboard'] Server time: Thu, 27 Feb 2025 16:29:47 +0000 note python and django version from command line. Different from above. Running python on cmd line: python3 Python 3.10.12 (main, Feb 4 2025, 14:57:36) [GCC 11.4.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import django >>> print(django.get_version()) 4.2.11 Then changed local_settings.py to PyMemcacheCache Getting this error: OfflineGenerationError at /auth/login/ You have offline compression enabled but key "xxx" is missing from offline manifest. You may need to run "python manage.py compress". Here is the original content: this is my /etc/openstack-dashboard/local_settings.py CACHES = { 'default': { 'BACKEND': 'django.core.cache.backends.memcached.PyMemcacheCache', 'LOCATION': 'controller:11211', } } After following these instructions: OpenStack 2024.1 Caracal for Ubuntu 22.04 LTS: add-apt-repository cloud-archive:caracal Saw this was fixed in earlier version of Horizon. So not sure what to do for this one? ** Affects: horizon Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Dashboard (Horizon). https://bugs.launchpad.net/bugs/2100546 Title: Could not find backend 'django.core.cache.backends.memcached.MemcachedCache' - openstack- dashboard 4:24.0.0 Status in OpenStack Dashboard (Horizon): New Bug description: Following these instructions: https://docs.openstack.org/horizon/2024.1/install/install-ubuntu.html CACHES = { 'default': { 'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache', 'LOCATION': 'controller:11211', } } dpkg -l | grep openstack ii openstack-dashboard 4:24.0.0-0ubuntu1.2~cloud0 all Django web interface for OpenStack Started with this error: Could not find backend 'django.core.cache.backends.memcached.MemcachedCache': Module "django.core.cache.backends.memcached" does not define a "MemcachedCache" attribute/class InvalidCacheBackendError at /auth/login/ Could not find backend 'django.core.cache.backends.memcached.MemcacheCache': Module "django.core.cache.backends.memcached" does not define a "MemcacheCache" attribute/class Request Method: GET Request URL: http://localhost:9098/horizon/auth/login/?next=/horizon/ Django Version: 4.2.11 Exception Type: InvalidCacheBackendError Exception Value: Could not find backend 'django.core.cache.backends.memcached.MemcacheCache': Module "django.core.cache.backends.memcached" does not define a "MemcacheCache" attribute/class Exception Location: /usr/lib/python3/dist-packages/django/core/cache/__init__.py, line 49, in create_connection Python Executable: /usr/bin/python3 Python Version: 3.10.12 Python Path: ['/usr/lib/python3/dist-packages', '/usr/lib/python310.zip', '/usr/lib/python3.10', '/usr/lib/python3.10/lib-dynload', '/usr/local/lib/python3.10/dist-packages', '/usr/lib/python3/dist-packages', '/usr/lib/python3/dist-packages/openstack_dashboard'] Server time: Thu, 27 Feb 2025 16:29:47 +0000 note python and django version from command line. Different from above. Running python on cmd line: python3 Python 3.10.12 (main, Feb 4 2025, 14:57:36) [GCC 11.4.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import django >>> print(django.get_version()) 4.2.11 Then changed local_settings.py to PyMemcacheCache Getting this error: OfflineGenerationError at /auth/login/ You have offline compression enabled but key "xxx" is missing from offline manifest. You may need to run "python manage.py compress". Here is the original content: this is my /etc/openstack-dashboard/local_settings.py CACHES = { 'default': { 'BACKEND': 'django.core.cache.backends.memcached.PyMemcacheCache', 'LOCATION': 'controller:11211', } } After following these instructions: OpenStack 2024.1 Caracal for Ubuntu 22.04 LTS: add-apt-repository cloud-archive:caracal Saw this was fixed in earlier version of Horizon. So not sure what to do for this one? 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