Abstract: Disclosed techniques and solutions can provide improved snapshot replication. Typically, an initial replica obtained using snapshot replication is periodically updated. However, the update process can unnecessarily consume computing resources if data in a source data object has not changed with respect to data in a replica data object. Disclosed techniques check to determine whether a snapshot replica is out of date before obtaining a new snapshot. The checks can be performed on manual request or on the occurrence of triggers, such as receiving a query that accesses the replica data object or according to a schedule. Information for current and prior versions of the remote data object can be compared to determine whether a replica is out of date, such as digest values of contents of the remote data object or timestamps associated with the remote data object.

Abstract: A cylindrical battery module including at least two rows of cell assemblies, two brackets, and a cooling plate is provided. The cell assemblies in each row include cylindrical cells arranged along a first direction. The brackets are disposed at two sides of the cell assemblies along a second direction. The bracket is provided with fixing holes, and the cylindrical cell is plugged into two fixing holes on the brackets. The cooling plate is clamped between adjacent rows of the cell assemblies. The cooling plate is provided with arc grooves arranged at intervals and along the first direction. A first inserting portion is formed between two adjacent arc grooves. The arc grooves are respectively mated with the cylindrical cells of the cell assemblies in one row, and the first inserting portion is inserted into a gap between two adjacent cylindrical cells of the cell assemblies in the one row.

Abstract: A member-oriented hybrid cloud operating system architecture and a communication method thereof are provided. A hybrid architecture is established based on layer, object and message models, and a member-oriented idea is applied to manage constituent members and a processing environment thereof. On this basis, high-efficient routing, read-write separation and load balancing are performed on a member processing cluster, satisfying the requirements of being open and compatible, loosely coupled and extensible of a cloud operating system, and solving the self-management problem, the horizontal scaling problem of members and the high-availability problem of stateful members of the existing cloud operating system.

Abstract: A member-oriented hybrid cloud operating system architecture and a communication method thereof are provided. A hybrid architecture is established based on layer, object and message models, and a member-oriented idea is applied to manage constituent members and a processing environment thereof. On this basis, high-efficient routing, read-write separation and load balancing are performed on a member processing cluster, satisfying the requirements of being open and compatible, loosely coupled and extensible of a cloud operating system, and solving the self-management problem, the horizontal scaling problem of members and the high-availability problem of stateful members of the existing cloud operating system.