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1990 Fiscal Year Final Research Report Summary

Studies on a Distributed Database System in Personal Computer Network

Research Project

Project/Area Number 01580025
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Informatics
Research InstitutionKyoto University

Principal Investigator

TSUDA Takao  Kyoto Univ., Facult. of Engineering, Professor, 工学部, 教授 (60025905)

Co-Investigator(Kenkyū-buntansha) NAKAYA Itsuko  Kyoto Univ., Facult. of Engineering, Assistant, 工学部, 教務職員 (40115902)
OKABE Yasuo  Kyoto Univ., Facult. of Engineering, Instructor, 工学部, 助手 (20204018)
KUNIEDA Yoshitoshi  Kyoto Univ., Facult. of Engineering, Instructor, 工学部, 助手 (90153311)
OKUBO Eiji  Kyoto Univ., Facult. of Engineering, Associate Prof., 工学部, 助教授 (60127058)
Project Period (FY) 1989 – 1990
KeywordsDistributed Database / Personal Computer Network / Operating System / Stream Orientation / Software Segmentation / Distributed Segmentation / Transaction Scheduling / Concurrency Control
Research Abstract

The major objective in this research is to establish a construction method for the operating systems which provide effective functions for the database processing. This is because there are several performance problems of database systems on a conventional operating system. In this fiscal year, we have implemented a prototype system on the experimental system which consists of several personal computers connected by a local area network, and evaluated the performance of the software segmentation and stream-oriented relational operations which were studied in the last year. Furthermore, in this yoar, we have studied the following research subjects : 1. Exception handling in the tnansaction processing, 2. Duplicate executions of the transaction, 3. Server for monitoring network communications, 4. Visual user interface based on the tabular form, 5. Micro-mainframe link. In the above subject 1, we have studied the processing scheme of exceptional events in the distributed environment where all the network site are connnected by a local area network, and developed system primitives for the distributed exception handling. In the subjcet 2 and 3, we have studied a general procedure for the recovery from the failures of transaction, site, and communication link. In the subject 4 and 5, we have implemented the TCP/IP protocol as a network protocol of the prototype system. Furthermore, by using the X-window system on UNIX, we have implemented part of user interface of the prototype system on the UNIX workstation, and confirmed the possibility of sharing of the user interface task between several processors.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 國枝 和雄: "分散セグメンテ-ションに基づくデ-タベ-スアクセス方式" 情報処理学会第73回デ-タベ-ス・システム研究会・第44回オペレ-ティングシステム研究会・合同研究会報告. 73 44. <1>-<7> (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 水谷 高康: "デ-タベ-スオペレ-ティングシステムμOPTーRにおける 演算処理の高速化" 情報処理学会第73回デ-タベ-ス・システム研究会・第44回オペレ-ティングシステム研究会・合同研究会報告. 73 44. =1=-=8= (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 國枝 和雄: "デ-タベ-スオペレ-ティングシステムμOPTーRにおける 分散セグメンテ-ション方式" 情報処理学会論文誌. 32. (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kazuo Kunieda: "Database Access Method based on the Distributed Segmentation" IPSJ SIG Reports on Database System and Operating System. 73-5 and 44-5. (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takayasu Mizutani: "A High Speed Processing Scheme for Relational Operations in Database Operating System mu OPT-R." IPSJ SIG Reports on Database System and Operating System. 73-6 and 44-6. (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kazuo Kunieda: "Distributed Segmentation in Database Operating System mu OPT-R" Transactions of IPSJ. Vol. 32. (1991)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1993-08-12  

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