Abstract: Embodiments of this application relate to the field of storage technologies, and disclose a data backup method and a terminal, to back up user data in a terminal when the terminal cannot be used. A specific solution is as follows: A terminal includes a first data partition, and the first data partition supports to start an operating system when the terminal is powered on. The terminal starts the operating system by using a second data partition after detecting a power-on failure of the terminal or detecting a preset operation of a user. The second data partition is a blank data partition. After the operating system is successfully started, the terminal transmits user data in the first data partition to a first storage medium. The first storage medium is located outside the terminal and is connected to the terminal.

Abstract: This application provides a dynamic bandwidth allocation method and a related device. The method includes: receiving, by a dynamic bandwidth allocation device, bandwidth request messages from bandwidth request devices through at least two access ports of a convergence device, wherein the bandwidth request messages include requested bandwidth information; allocating bandwidth information to the bandwidth request device based on the requested bandwidth information and remaining bandwidth information of an upstream egress port of the convergence device, wherein the remaining bandwidth information is a difference between limited bandwidth information of the upstream egress port and bandwidth information already allocated; and sending a response message to the bandwidth request device through the access port.

Abstract: This application provides a dynamic bandwidth allocation method and a related device. The method includes: receiving, by a dynamic bandwidth allocation device, bandwidth request messages from bandwidth request devices through at least two access ports of a convergence device, wherein the bandwidth request messages include requested bandwidth information; allocating bandwidth information to the bandwidth request device based on the requested bandwidth information and remaining bandwidth information of an upstream egress port of the convergence device, wherein the remaining bandwidth information is a difference between limited bandwidth information of the upstream egress port and bandwidth information already allocated; and sending a response message to the bandwidth request device through the access port.

Abstract: An implementation of the present specification provides a method for training a risk identification model. Because different types of unsupervised machine learning algorithms have different requirements for features, a type of a target unsupervised machine learning algorithm can be determined first, then various types of feature information are extracted from input information, and then target feature information is extracted from the feature information in a way of extracting feature information corresponding to the type of the target unsupervised machine learning algorithm. Because the target feature information adapted to the target unsupervised machine learning algorithm is extracted, a target risk identification model obtained through training by using the target feature information based on the target unsupervised machine learning algorithm has higher identification accuracy and ensures the accuracy of risk identification.

Abstract: Failure detection techniques in distributed computing systems are disclosed herein. In one embodiment, a method includes receiving an arbitration request from a first node in a computing system having a plurality of nodes interconnected by a computer network. Each of the nodes has a logic relationship with another node in the computing system. The arbitration request indicates that the first node is unable to establish a lease with a second node for a predetermined threshold period. The second node is logically related to the first node according to the logic relationship and is a default monitor for the first node for the lease. The method also includes in response to receiving the arbitration request from the first node, providing a neutral arbitration result to the first node, and allowing the first node to continue to operate without causing the second node to terminate itself.

Abstract: Arbitration techniques in distributed computing systems are disclosed herein. In one embodiment, a method includes receiving an arbitration request from a first node in the computing system. The first arbitration request indicating that a one-way lease between the first node and a second node in the computing system has failed. The method also includes in response to receiving the arbitration request from the first node, providing an arbitration result to the first node, the arbitration result allowing both the first and second nodes to continue to operate despite of that the one-way lease between the first and second nodes has failed.

Abstract: Failure detection techniques in distributed computing systems are disclosed herein. In one embodiment, a method includes receiving an arbitration request from a first node in a computing system having a plurality of nodes interconnected by a computer network. Each of the nodes has a logic relationship with another node in the computing system. The arbitration request indicates that the first node is unable to establish a lease with a second node for a predetermined threshold period. The second node is logically related to the first node according to the logic relationship and is a default monitor for the first node for the lease. The method also includes in response to receiving the arbitration request from the first node, providing a neutral arbitration result to the first node, and allowing the first node to continue to operate without causing the second node to terminate itself.

Abstract: Arbitration techniques in distributed computing systems are disclosed herein. In one embodiment, a method includes receiving an arbitration request from a first node in the computing system. The first arbitration request indicating that a one-way lease between the first node and a second node in the computing system has failed. The method also includes in response to receiving the arbitration request from the first node, providing an arbitration result to the first node, the arbitration result allowing both the first and second nodes to continue to operate despite of that the one-way lease between the first and second nodes has failed.

Abstract: A scalable hierarchical health model provides granularly focused evaluations of the health of the health of distributed computational components, e.g., cluster, nodes, applications, services, and the like. A health entity represents a health state of a corresponding computational component. When a health condition is detected, it is reported to a replicated health store by sending a health report which identifies one or more health entities, each of which has the finest granularity of any health entity associated with the health condition. The health report includes a health entity ID, a health property, and a health state of the health property. A health report may also include a health event description written to inform human readers about the event in question. One or more events may be reported in a given health report. The health store aggregates health states according to health policies, thereby providing actionable health information.

Abstract: A shell (100) of an electronic device is provided. The shell includes a base body (10) and a color-changing layer (20). The color-changing layer is formed on a surface of the base body and configured to change its color thereof according to changes of temperature thereof.

Abstract: The invention is a process for the preparation of crosslinked water-swellable polymer particles. First, an aqueous polymer solution containing a water-soluble polymer having at least one functional group or charge, is combined with aqueous medium. The aqueous polymer solution is then mixed under moderate agitation with an oil medium and an emulsifier to form an emulsion of droplets of the water-soluble polymer. A crosslinking agent capable of crosslinking the functional groups and/or charges in the water-soluble polymer is then added to the emulsion to form crosslinked water-swellable polymer particles. The invention also includes the particles formed by the process and aqueous dispersions containing the particles which are useful for administering to an individual. The particles of the invention are useful for implantation, soft tissue augmentation, and scaffolding to promote cell growth.

Abstract: The invention is a process for the preparation of crosslinked water-swellable polymer particles. First, an aqueous polymer solution containing a water-soluble polymer having at least one functional group or charge, is combined with aqueous medium. The aqueous polymer solution is then mixed under moderate agitation with an oil medium and an emulsifier to form an emulsion of droplets of the water-soluble polymer. A crosslinking agent capable of crosslinking the functional groups and/or charges in the water-soluble polymer is then added to the emulsion to form crosslinked water-swellable polymer particles. The invention also includes the particles formed by the process and aqueous dispersions containing the particles which are useful for administering to an individual. The particles of the invention are useful for implantation, soft tissue augmentation, and scaffolding to promote cell growth.