4results about How to "Reduce migration time" patented technology

This invention relates to a method and apparatus for storage pool scaling and recovery in a distributed storage system. The method includes the following steps: obtaining a scaling request; setting the storage pool to maintenance mode; determining whether the current storage pool meets the conditions for allowed scaling; if so, performing the scaling operation; if not, sending an operation failure signal; after completing the scaling operation, all storage nodes in the storage pool, based on the updated cluster view, use a two-layer consistent static hash ring distribution algorithm to complete data rebalancing. Compared with existing technologies, this invention maintains the availability of data replicas / shards throughout the scaling process, thereby preventing storage pool degradation and minimizing the impact of data migration on front-end read / write requests.

This invention discloses a method for deduplicating multi-virtual machine hot migration data in a cloud computing environment, belonging to the field of cloud computing technology. The specific steps include: continuously learning from virtual machines in a test environment to master a certain level of virtual machine memory data hash digest->value pairs based on the operating system image ID, and understanding the data hit rate; and importing the data learned from the test environment into a migration cache server to complete the deduplication of multi-virtual machine hot migration data. This invention can effectively reduce virtual machine hot migration time, while reducing the pressure of virtual machine migration on the business network and mitigating business risks for other cloud hosts.

The application discloses a method and device for realizing strong consistency synchronization of an Elasticsearch cluster, and the method comprises the following steps: writing data into a master shard of a master index to which a document belongs; after the data is written successfully, sending a write request to a node where a master shard of a slave index to which the document belongs is located, regarding the master shard of the slave index as a remote copy of the master shard of the master index, writing data into the remote copy, and realizing real-time data synchronization; the master shard of the master index sends a segment file which has been landed on a disk to the remote copy, and analyzes storage information of actual data in the segment file; the master shard of the master index sends a translog log which has not been landed on a disk to the remote copy, so that the remote copy is restored to a data state consistent with the master shard, and historical data recovery is realized. The method and device copy indexes in a remote cluster to a local cluster, ensure strong consistency of master-slave data, provide high availability and fast disaster recovery capability, and realize uninterrupted inter-cluster index migration.

The application provides a data migration method and device, electronic equipment, a storage medium and a program product, relates to the technical field of data storage, and the method comprises the following steps: firstly, monitoring a file list in an object storage service of source data, determining an incremental file index, and the file list comprising file identifiers of files stored by the object storage service; the incremental file index comprising file identifiers of incremental files in the file list; then, reading incremental data corresponding to the file identifiers of the incremental files from a source data address, and writing the incremental data into a target data address. In the embodiment, the incremental data can be quickly identified and migrated to the target data address by monitoring the file list, the data migration time is reduced, and the high timeliness requirement of data migration is met.