System of compressing the tail of a sparse log stream of a multisystem environment
US6125393A · kind A · utility
21Cited by
27References
13Claims
0Family size
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Key dates
| Filing date | Mar 28, 1997 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Mar 28, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99953
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A multisystem log stream of a multisystem environment is compressed. The oldest record needed for each system that can write or delete entries from the multisystem log stream is tracked, and that information is used in compression of the log stream. The block ids associated with those oldest records are maintained within a vector, and when the vector is updated, a determination is made as to whether the entry in the vector that it replaced previously contained the lowest block id in the vector. If so, all the records having block ids lower than the new lowest block id in the vector are deleted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.