Jim Gray (computer scientist)
James Nicholas Gray | |
|---|---|
| Born | 1944 San Francisco, California, U.S. |
| Died | January 28, 2012 (aged 67–68) Declared dead in absentia (disappeared at sea near Farallon Islands, California) |
| Occupation | Computer scientist |
| Years active | 1966–2007 |
| Known for | Contributions to database systems and transaction processing; Turing Award laureate |
James Nicholas Gray (1944 – declared dead in absentia 2012) was a distinguished American computer scientist recognized with the Turing Award in 1998 for his groundbreaking work in database systems and transaction processing, as well as his leadership in practical system development.
Early years and personal life
Gray was born in San Francisco but spent much of his childhood in Rome, Italy, where he learned Italian before English. Following his parents' separation, he moved back to San Francisco with his mother. His father, an amateur inventor, generated income through royalties from a patented typewriter ribbon cartridge.
In 1961, Gray enrolled at the University of California, Berkeley, financing his education through a cooperative position at General Dynamics. He earned a Bachelor of Science degree in engineering mathematics in 1966.
After marrying Loretta, Gray worked at Bell Labs, focusing on digital simulation for the Multics operating system while pursuing a Master's degree at the Courant Institute of New York University. After traveling internationally, the couple settled in Berkeley, where Gray completed his doctorate in programming languages under Michael A. Harrison in 1969. He then spent two years conducting postdoctoral research at IBM.
Gray and Loretta had one daughter before their divorce. He later married Donna Carnes.
Research
Gray’s professional journey included research and software development roles at major corporations such as IBM, Tandem Computers, and DEC. In 1995, he joined Microsoft as a Technical Fellow and remained there until his disappearance at sea in 2007.
His contributions were pivotal to several influential database and transaction processing systems. Notably, IBM’s System R project, which he contributed to, established the foundation for SQL relational databases extensively used today. During his tenure at Microsoft, Gray was involved in initiatives like TerraServer-USA and Skyserver.
Roger Sippl described Gray as one of the "technical gods" within the industry and acknowledged his reputation as an impartial authority on standards committees. Among Gray’s significant innovations are:
- ACID, which defines essential properties for reliable transaction processing
- Multiple granularity locking for fine-grained database locking
- Two-phase commit protocols for transaction coordination
- The Five-minute rule guiding storage allocation decisions
- OLAP cube operators utilized in data warehousing
- A taxonomy for classifying software defect types
Additionally, Gray played a role in creating Virtual Earth and co-founded the Conference on Innovative Data Systems Research, impacting both academic research and commercial database technologies.
Disappearance
An experienced sailor, Gray owned a sailboat. On January 28, 2007, he embarked on a solo voyage to scatter his mother’s ashes near the Farallon Islands off San Francisco but never returned. Weather conditions were clear that day, and no distress signals or alerts from the boat’s automatic Emergency Position-Indicating Radio Beacon were received.
The Coast Guard conducted an extensive four-day search involving aircraft and vessels but found no trace. On February 1, 2007, imagery from a DigitalGlobe satellite covering the region was released via Amazon Mechanical Turk for public analysis. A global network of colleagues and computer scientists formed the "Jim Gray Group" to assist with image examination. The search was called off on February 16; an underwater investigation employing advanced technology concluded on May 31.
Marine search specialist Bob Bilger highlighted that Gray’s sailboat model, a C&C 40, is susceptible to sudden hull breaches and can sink within approximately 30 seconds without leaving debris behind.
On May 31, 2008, both the University of California, Berkeley and Gray’s family organized a memorial event. Five years after his disappearance, he was officially declared legally dead on January 28, 2012.
In 2012, Donna Carnes co-authored research addressing coping strategies for ambiguous loss. Following the disappearance of Malaysia Airlines Flight 370, CNN interviewed Carnes in 2014; she was residing in Wisconsin with her elderly mother who had dementia.
Legacy
Microsoft's WorldWide Telescope application was dedicated as a tribute to Gray. In 2008, Microsoft Research inaugurated the Gray Systems Lab located in Madison, Wisconsin, bearing his name in recognition of his impact.
Each year, the database conference SIGMOD honors exceptional doctoral students in database research with the Jim Gray Doctoral Dissertation Award.
Additionally, Microsoft Research annually grants the Jim Gray eScience Award to scholars who have made notable advancements in data-intensive computing. Previous awardees include Alex Szalay (2007), Carole Goble (2008), Jeff Dozier (2009), Phil Bourne (2010), Mark Abbott (2011), Antony John Williams (2012), and Dr. David Lipman, M.D. (2013).
See also
External links
- Articles with short description
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- 1944 births
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