--- ansible_become: true tuned_profile: throughput-performance rabbitmq_fd: 1600 haproxy_max_connections: 4096 mariadb_max_connections: 4096 mysqld_soft_fd: 16384 nova_vif_timeout: 300 netdev_max_backlog: 100000 keystone_threads: 6 keystone_processes: 2 checks : bz1282491 : url: "https://bugzilla.redhat.com/show_bug.cgi?id=1282491" description: "update RabbitMQ default file descriptor setting" severity: "Suggestion" impact: "RabbitMQ can become unreliable after it runs out of FDs" bz1281584 : url: "https://bugzilla.redhat.com/show_bug.cgi?id=1281584" description: "Director does not create an haproxy configuration that conforms to our best-practice recommendations" severity: "Suggestion" impact: "HAProxy config should match our best practices" bz1266253 : url: "https://bugzilla.redhat.com/show_bug.cgi?id=1266253" description: "increase mariadb max_connection default value" severity: "Critical" impact: "With the max_connection set too low, MariaDB will fail at scale" buffer_pool_size: url: "none" description: "mariadb buffer pool size tuning" severity: "Suggestion" impact: "Tune the buffer pool size to increase performance" mysqld_safe_soft_fd: url: "none" description: "mariadb file descriptor setting not high enough" severity: "Suggestion" impact: "If the FD setting is not set very high, the Scale of the cloud might be impacted." bz1293712 : url: "https://bugzilla.redhat.com/show_bug.cgi?id=1293712" description: "/etc/udev/rules.d/99-dhcp-all-interfaces.rules causes a slow and miserable degradation until things fail" severity: "Suggestion" impact: "This will slow down the machine due to all the dhcp-namespaces" nova_vif_timeout_result: url: "none" description: "Nova VIF timeout should be >= 300" severity: "Suggestion" impact: "Best practices from the Neutron team" bz1264740: url: "https://bugzilla.redhat.com/show_bug.cgi?id=1264740" description: "RHEL OSP Director must be configured with nova-event-callback by default" severity: "Critical" impact: "nova-event-callback should be enabled, nova will launch guests with possibly no networking" rabbit_partitioned: url: "none" description: "RabbitMQ is currently partitioned - YMMV... Good luck." severity: "Critical" impact: "RabbitMQ is partitioned - The deployment is broken" tuned_profile_result: url: "none" description: "Ensure TuneD Profile is set to throughput-performance" severity: "Suggestion" impact: "Set the right TuneD profile for the host" neutron_rootwrap_daemon: url: "none" description: "Ensure rootwrap has daemon mode enabled" severity: "Suggestion" impact: "The Red Hat Neutron team recommends having rootwrap in Daemon mode" bz1330980: url: "https://bugzilla.redhat.com/show_bug.cgi?id=1330980" description: "Undercloud deployed with 1 keystone worker and cpu_count for threads" severity: "Critical" impact: "Not tuning the workers properly can cause degraded performance"