Safe and Efficient Sharing of Persistent Objects in Thor

Summary: Thor is an OO DB for heterogeneous distributed settings, guaranteeing safe sharing of persistent objects via language-agnostic method calls. It achieves low-overhead safety and an adaptive prefetching cache; OO7 shows faster traversals and better cache use. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID: 2956
Venue: SIGMOD
Year: 1996
Pagerank: 5.2755515e-05
Overall Rank: 9,404 | 35.49%
DOI: 10.1145/233269.233346

Incoming Non-self Citations Over Time

Authors

1. B. Liskov (Massachusetts Institute of Technology)
2. A. Adya (Massachusetts Institute of Technology)
3. M. Castro (Massachusetts Institute of Technology)
4. M. Day (Lotus; Massachusetts Institute of Technology)
5. S. Ghemawat (Digital Equipment Corporation; Massachusetts Institute of Technology)
6. R. Gruber (AT&T; Massachusetts Institute of Technology)
7. U. Maheshwari (Massachusetts Institute of Technology)
8. A. C. Myers (Massachusetts Institute of Technology)
9. L. Shrira (Massachusetts Institute of Technology)

BibTeX Citation

@inproceedings{liskov_sigmod96,
        title = {{Safe and Efficient Sharing of Persistent Objects in Thor}},
        author = {Liskov, B. and Adya, A. and Castro, M. and Day, M. and Ghemawat, S. and Gruber, R. and Maheshwari, U. and Myers, A. C. and Shrira, L.},
        series = {{SIGMOD} '96},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/233269.233346},
        url = {https://dl.acm.org/doi/10.1145/233269.233346},
        year = {1996}
}

Incoming Citations (Sorted by Pagerank)

Showing 3 of 3 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
2,930	StatusQuo: Making Familiar Abstractions Perform Using Program Analysis	2013	CIDR	7.9494635e-05
6,981	Partitioned Garbage Collection of a Large Object Store	1997	SIGMOD	5.7303405e-05
12,909	An Adaptive Hybrid Server Architecture for Client Caching Object DBMSs	1999	VLDB	5.093636e-05

Outgoing Citations (Sorted by Pagerank)

Showing 7 of 7 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank	Cited Paper	Year	Venue	Pagerank
299	Shoring Up Persistent Applications	1994	SIGMOD	0.00022084669
1,087	The OO7 Benchmark	1993	SIGMOD	0.0001224919
1,992	On the Performance of Object Clustering Techniques	1992	SIGMOD	9.3427219e-05
2,040	Efficient Optimistic Concurrency Control Using Loosely Synchronized Clocks	1995	SIGMOD	9.2704638e-05
2,672	QuickStore: A High Performance Mapped Object Store	1994	SIGMOD	8.2733031e-05
2,902	Dual-Buffering Strategies in Object Bases	1994	VLDB	7.9769977e-05
3,401	A Performance Study of Alternative Object Faulting and Pointer Swizzling Strategies	1992	VLDB	7.4431893e-05

Semantically Similar Papers

#	Overall Rank	Paper	Year	Venue
1	2,737	Managing Persistent Objects in a Multi-Level Store	1991	SIGMOD
2	14,380	The Design and Implementation of Persistent Transactions in an Object Database System	1992	SIGMOD
3	2,376	Data Caching Tradeoffs in Client-Server DBMS Architectures	1991	SIGMOD
4	12,955	Highly Concurrent Cache Consistency for Indices in Client-Server Database Systems	1997	SIGMOD
5	1,087	The OO7 Benchmark	1993	SIGMOD
6	7,983	An Approach to Object Sharing in Distributed Database Systems	1983	VLDB
7	3,305	Cache Tables: Paving the Way for an Adaptive Database Cache	2003	VLDB
8	2,040	Efficient Optimistic Concurrency Control Using Loosely Synchronized Clocks	1995	SIGMOD
9	12,909	An Adaptive Hybrid Server Architecture for Client Caching Object DBMSs	1999	VLDB
10	3,840	Fine-Grained Sharing in a Page Server OODBMS	1994	SIGMOD