Thomas M. Cheng
IT Professional
The recovery subsystem of an experimental data management system is described and evaluated. The transactmn concept allows application programs to commit, abort, or partially undo their effects. The DO-UNDO-REDO protocol allows new recoverable types and operations to be added to the recovery system Apphcation programs can record data in the transaction log to facilitate application-specific recovery. Transaction undo and redo are based on records kept in a transaction log. The checkpoint mechanism is based on differential fries (shadows). The recovery log is recorded on disk rather than tape. © 1981, ACM. All rights reserved.
Thomas M. Cheng
IT Professional
Xiaozhu Kang, Hui Zhang, et al.
ICWS 2008
Michael C. McCord, Violetta Cavalli-Sforza
ACL 2007
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Qinghua Daxue Xuebao/Journal of Tsinghua University