Abstract: A method for remote assistance is provided. The method includes: receiving a remote assistance file sent by a controlling terminal, the remote assistance file containing a script file generated by the controlling terminal based on user operation; determining whether the script file is compatible to the controlled terminal; and if the script file is compatible to the controlled terminal, executing the script file to perform the user operation corresponding to the script file. Thereby, by transmitting a script file generated based on user operation between the controlled terminal and the controlling terminal, remote assistance can be performed more conveniently and user experience can be improved.

Abstract: A method for remote assistance is provided. The method includes: receiving a remote assistance file sent by a controlling terminal, the remote assistance file containing a script file generated by the controlling terminal based on user operation; determining whether the script file is compatible to the controlled terminal; and if the script file is compatible to the controlled terminal, executing the script file to perform the user operation corresponding to the script file. Thereby, by transmitting a script file generated based on user operation between the controlled terminal and the controlling terminal, remote assistance can be performed more conveniently and user experience can be improved.

Abstract: Metadata may be stored in, and retrieved from, a scalable, fault-tolerant metadata service. In one example, metadata is divided into partitions, and each partition is served by one or more nodes. For each partition, a first one of the nodes may handle read and write requests, and the other nodes may handle read requests in the event that the first node is down or is experiencing high load. When a request is made with respect to metadata, a metadata server may identify a node, in the partition to which the metadata is assigned, to which the request is to be made. The entity that is making the request then contacts that node, and requests the read or write on the metadata. In a partition, metadata may be replicated between the first node and the other nodes using a log-based replication protocol.

Abstract: Metadata may be stored in, and retrieved from, a scalable, fault-tolerant metadata service. In one example, metadata is divided into partitions, and each partition is served by one or more nodes. For each partition, a first one of the nodes may handle read and write requests, and the other nodes may handle read requests in the event that the first node is down or is experiencing high load. When a request is made with respect to metadata, a metadata server may identify a node, in the partition to which the metadata is assigned, to which the request is to be made. The entity that is making the request then contacts that node, and requests the read or write on the metadata. In a partition, metadata may be replicated between the first node and the other nodes using a log-based replication protocol.