Abstract: A database service may distribute resources across different geographic locations or other infrastructures to increase availability of the resources and may provide multiple locations to access resources and isolate failure of resources to a respective location or infrastructure. The processing resources in differing fault tolerance zones may be able to continue operating in the event of an outage impacting an entire fault tolerance zone. The database service may generate a supporting processing cluster in the differing fault tolerance zone that handles at least a portion of the access requests of an initial processing cluster. The database service may provision the supporting processing cluster in a separate fault tolerance zone that has a similar capacity and may provision and maintain the cluster in order to preclude the potential of not having sufficient capacity to recover upon failure of a single fault tolerance zone.

Abstract: Idle periods may be for management actions at processing clusters for managed databases. A leader node of a processing cluster for a managed database may monitor a network endpoint at a proxy service associated with a database managed by the database service. An idle period for the database may be detected. A management action for the processing cluster may be determined to be performed during the detected idle period. The leader node may cause the determined management action to be performed.

Abstract: An animal warning device for emitting a sound that is loud and consistent enough to cause animals to avoid oncoming vehicles. The present invention accomplishes this objective by electrically connecting a speaker to a wind-powered generator. The wind-powered generator is driven by air current striking an impeller. The device is mounted onto a vehicle such that oncoming air current strikes the impeller causing the impeller to rotate. Rotation of the impeller causes the generator to produce a current which powers the speaker. As such, it is unnecessary to connect the animal warning device to an external power source, such as the vehicle's alternator or battery.

Abstract: An animal warning device for emitting a sound that is loud and consistent enough to cause animals to avoid oncoming vehicles. The present invention accomplishes this objective by electrically connecting a speaker to a wind-powered generator. The wind-powered generator is driven by air current striking an impeller. The device is mounted onto a vehicle such that oncoming air current strikes the impeller causing the impeller to rotate. Rotation of the impeller causes the generator to produce a current which powers the speaker. As such, it is unnecessary to connect the animal warning device to an external power source, such as the vehicle's alternator or battery.