Patent attributes
Systems and methods are provided to implement a metadata record migration system that schedules the migrations of metadata records that are frequently mutated. In embodiments, the scheduler collects timing data of jobs that modify the metadata records, including the timing of various mutation operations within the jobs. In embodiments, when it is determined that a metadata record is to be migrated to a different storage location, the scheduler determines a time to migrate the metadata record. The migration time may lie within a migration window, selected based on an expected migration time needed for the metadata record and the collected time data in order to reduce a probability that record mutations will occur during the migration. In embodiments, the jobs may be snapshot jobs that modify a snapshot record, and the migration may be performed as a result of a cell partitioning operation occurring within the snapshotting system.
