Public bug reported: The oslo.cache backend argument description currently states:
"Dogpile.cache backend module. It is recommended that Memcache or Redis (dogpile.cache.redis) be used in production deployments. For eventlet- based or highly threaded servers, Memcache with pooling (oslo_cache.memcache_pool) is recommended. For low thread servers, dogpile.cache.memcached is recommended. Test environments with a single instance of the server can use the dogpile.cache.memory backend." So the dogpile.cache.memcached/dogpile.cache.redis backends should be used for production deployments, but the dogpile cache is recommended for low thread servers and the oslo_cache.memcache_pool should be used for high thread servers. I don't understand what the actual recommendation is here. For a production deployment of a service using uwsgi and a web server, what is the recommendation? For a production deployment of a service using uwsgi and no web server, what is the recommendation? For a production deployment of a service using eventlet, what is the recommendation? Using keystone as an example, the example config file has the same content which does not really help to clarify anything: https://github.com/openstack/keystone/blob/b7bd6e301964d393ac6835111a08bbf15ba73bc0/etc/keystone.conf.sample#L514-L520 ** Affects: keystone Importance: Undecided Status: New ** Affects: oslo.cache Importance: Undecided Status: New ** Also affects: keystone Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Identity (keystone). https://bugs.launchpad.net/bugs/1690756 Title: cache 'backend' argument description is ambiguous Status in OpenStack Identity (keystone): New Status in oslo.cache: New Bug description: The oslo.cache backend argument description currently states: "Dogpile.cache backend module. It is recommended that Memcache or Redis (dogpile.cache.redis) be used in production deployments. For eventlet-based or highly threaded servers, Memcache with pooling (oslo_cache.memcache_pool) is recommended. For low thread servers, dogpile.cache.memcached is recommended. Test environments with a single instance of the server can use the dogpile.cache.memory backend." So the dogpile.cache.memcached/dogpile.cache.redis backends should be used for production deployments, but the dogpile cache is recommended for low thread servers and the oslo_cache.memcache_pool should be used for high thread servers. I don't understand what the actual recommendation is here. For a production deployment of a service using uwsgi and a web server, what is the recommendation? For a production deployment of a service using uwsgi and no web server, what is the recommendation? For a production deployment of a service using eventlet, what is the recommendation? Using keystone as an example, the example config file has the same content which does not really help to clarify anything: https://github.com/openstack/keystone/blob/b7bd6e301964d393ac6835111a08bbf15ba73bc0/etc/keystone.conf.sample#L514-L520 To manage notifications about this bug go to: https://bugs.launchpad.net/keystone/+bug/1690756/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
