Audit trail compaction for database recovery

1 July 1984

journal article
Published by Association for Computing Machinery (ACM) in Communications of the ACM

Vol. 27 (7) , 678-683
https://doi.org/10.1145/358105.358194

Abstract

Total elapsed recovery time from disk-based database corruption can be shortened by reprocessing the audit trail off-line and thereby avoiding excessive resource utilization penalties. Using a bit map, the audit trail is compacted by eliminating irrelevant or superseded records. The compacted trail is then partitioned, and the partitions are processed in parallel.

Keywords

COMPACTED
TRAIL COMPACTION
PARTITIONS
AUDIT
REPROCESSING
BIT
SHORTENED
DISK
SUPERSEDED

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