Abstract

This project aims to solve the problem of how to do automatic software upgrades: how to cause the code running in the system to change while the system continues to run. We are interested in two different but related subproblems: how to upgrade code of objects in a distributed object-oriented database, and how to upgrade code in robust distributed systems that are intended to provide continuous service over a very long lifetime. In either case, there is a compelling need for automatic upgrades to correct software errors, improve performance, or to change system behavior, e.g., to support new features.
More on software upgrades in a OODBMS ...

Copyright notice.

2006

“Modular Software Upgrades for Distributed Systems”
by Sameer Ajmani, Barbara Liskov, and Liuba Shrira.
In European Conference on Object-Oriented Programming (ECOOP), July 2006.
Details. Download: ps, pdf .

2004

“Automatic Software Upgrades for Distributed Systems”
by Sameer Ajmani.
Ph.D. dissertation, MIT, Sep. 2004. Also as Technical Report MIT-LCS-TR-1012.
Details. Download: ps, pdf .

2003

“Automatic Software Upgrades for Distributed Systems”
by Sameer Ajmani, Barbara Liskov, and Liuba Shrira.
Oct. 2003. Poster presented at the ACM Symposium on Operating Systems Principles (SOSP 19).
Details. Download: pdf.

“Lazy Modular Upgrades in Persistent Object Stores”
by Chandrasekhar Boyapati, Barbara Liskov, Liuba Shrira, Chuang-Hue Moh, and Steven Richman.
In ACM Conference on Object-Oriented Programming, Systems, Languages, and Applications (OOPSLA), (Anaheim, California), Oct. 2003.
Details. Download: pdf, ps.

“Scheduling and Simulation: How to Upgrade Distributed Systems”
by Sameer Ajmani, Barbara Liskov, and Liuba Shrira.
In Ninth Workshop on Hot Topics in Operating Systems (HotOS-IX), (Lihue, Hawaii), May 2003, pp. 43-48.
Details. Download: ppt, pdf, ps.

“Automatic Software Upgrades for Distributed Systems”
by Sameer Ajmani.
Apr. 2003. Ph.D. thesis proposal.
Details. Download: pdf, ps .

“Ownership Types for Object Encapsulation”
by Chandrasekhar Boyapati, Barbara Liskov, and Liuba Shrira.
In ACM Symposium on Principles of Programming Languages (POPL), (New Orleans, Louisiana), Jan. 2003.
Details. Download: pdf, ps .

2002

“Distributed System Upgrade Scenarios”
by Sameer Ajmani.
Oct. 2002.
Details. Download: pdf, ps .

“A Review of Software Upgrade Techniques for Distributed Systems”
by Sameer Ajmani.
Aug. 2002.
Details. Download: pdf, ps, bib, html.

“Ownership Types and Safe Lazy Upgrades in Object-Oriented Databases”
by Chandrasekhar Boyapati, Barbara Liskov, and Liuba Shrira.
MIT technical report MIT-LCS-TR-858, July 2002.
Details. Download: ps, pdf .

“Safe Lazy Software Upgrades in Object-Oriented Databases”
by Barbara Liskov, Chuang-Hue Moh, Steven Richman, Liuba Shrira, Yin Cheung, and Chandrasekhar Boyapati.
MIT technical report MIT-LCS-TR-851, June 2002.
Details. Download: ps, pdf .

2001

“Software Upgrades in Distributed Systems”
by Barbara Liskov.
Oct. 2001. Keynote address at the 18th ACM Symposium on Operating Systems Principles (SOSP).
Details. Download: ppt, ps .

“Lazy Schema Evolution in Object-Oriented Databases”
by Yin Cheung.
Masters thesis, MIT, Sep. 2001.
Details. Download: ps, pdf .

2000

“Dynamic Reconfiguration of Component-Based Applications in Java”
by Ziqiang Tang.
Masters thesis, MIT, Sep. 2000.
Details. Download: ps .

“Lazy Type Changes in Object-Oriented Databases”
by Shan-Ming Woo.
Masters thesis, MIT, Jan. 2000.
Details. Download: ps .

1992

“Reconfiguration in Argus”
by Toby Bloom and Mark Day.
In Intl. Workshop on Configurable Dist. Systems, (London, England), Mar. 1992, pp. 176-187.
Details.

1983

“Dynamic Module Replacement in a Distributed Programming System”
by Toby Bloom.
Ph.D. dissertation, MIT, 1983, 134 pages. Also as MIT LCS Tech. Report 303.
Details. Download: pdf .


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