Abstract: An accelerator scheduling method includes receiving a first request, where the first request is a request to configure a target accelerator for a first task currently being run in a first process run in a processor, wherein the processor includes a plurality of processing cores, wherein the first task includes a plurality of subtasks, and wherein each of the subtasks corresponds to one of the plurality of processing cores. The method also includes determining, in response to the first request, the target accelerator from N accelerators based on a processing core corresponding to a first subtask in the first task, where N is an integer greater than 0. The method also includes scheduling the first task to the target accelerator for processing.

Abstract: A data access method includes: receiving a data request, where the data request indicates a plurality of source storage addresses and a target data type; reading, from a memory based on the data request, a first memory block indicated by each of the plurality of source storage addresses, where a length of the first memory block is a granularity for accessing the memory; extracting data of each source storage address from the first memory block indicated by each source storage address; combining data of all the source storage addresses based on a length of a cache line to obtain a second memory block; and sending the second memory block to a processing subsystem, for the processing subsystem to cache the second memory block.

Abstract: This application provides a data access method, a database system, and a storage apparatus. In technical solutions provided in this application, a computing device includes a database operation request in a transmission command sent to a storage device. The database operation request is used to request to perform an operation on a data object in a database. After receiving the transmission command, the storage device parses the transmission command to obtain the database operation request, and then performs, on the data object in the operation request, the operation that is requested by the operation request, without conversion performed by a file system or a block device. Therefore, efficiency of the database system accessing data is improved.

Abstract: An index update method, including: receiving an index update request, where the index update request is used to instruct to create or delete a target index that is associated with a field in a logic table of a tenant; updating metadata information of the logic table in a database in response to the index update request; notifying a coordination service, where the coordination service is used to notify a second data access node to perform a local synchronization update; and after all second data access nodes finish local synchronization updates, performing a data asynchronization update. After the metadata information is updated in the database, an index is updated in two steps. In a first step, a local synchronization update is performed. In a second step, after all data access nodes finish local synchronization updates, a data asynchronization update is performed.

Abstract: An index update method, including: receiving an index update request, where the index update request is used to instruct to create or delete a target index that is associated with a field in a logic table of a tenant; updating metadata information of the logic table in a database in response to the index update request; notifying a coordination service, where the coordination service is used to notify a second data access node to perform a local synchronization update; and after all second data access nodes finish local synchronization updates, performing a data asynchronization update. After the metadata information is updated in the database, an index is updated in two steps. In a first step, a local synchronization update is performed. In a second step, after all data access nodes finish local synchronization updates, a data asynchronization update is performed.

Abstract: An index update method, including: receiving an index update request, where the index update request is used to instruct to create or delete a target index that is associated with a field in a logic table of a tenant; updating metadata information of the logic table in a database in response to the index update request; notifying a coordination service, where the coordination service is used to notify a second data access node to perform a local synchronization update; and after all second data access nodes finish local synchronization updates, performing a data asynchronization update. After the metadata information is updated in the database, an index is updated in two steps. In a first step, a local synchronization update is performed. In a second step, after all data access nodes finish local synchronization updates, a data asynchronization update is performed.