Load history calculation in internal stage replication
US11983165B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2023 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Mar 29, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/27
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present disclosure provide techniques for deduplicating files during internal stage replication using a directory table of the replicated internal stage that is modified as a cache for storing and retrieving original file-level metadata for the replicated files. An initial list of candidate files for loading from the internal stage to a table of the target deployment is prepared based on the files listed in the internal stage, and refined using a directory table lookup. If there is any inconsistency between the files registered in the directory table and the files listed in the internal stage, the target deployment will inspect the user-defined file-level metadata to obtain original file-level metadata for each file that is present in the internal stage but not in the directory table. This information may be used during deduplication to ensure that no duplicate files are loaded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.