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Data processing system for dynamically switching access control process and for performing recovery process

  • US 5,553,303 A
  • Filed: 12/20/1994
  • Issued: 09/03/1996
  • Est. Priority Date: 08/31/1990
  • Status: Expired due to Term
First Claim
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1. A database processing system using a multiprocessor including a plurality of processor modules each having a local memory connected to an external shared memory, said database processing system comprising:

  • a composite structure definition control part for defining an administrative processor module for controlling an access to a composite structure of a database which has a storage structure independent of a logical structure; and

    a maintenance/selection control part in an optimum control processor for providing a function of access-controlling a shared process and a local process when an access request arises for a database composite structure, and for dynamically switching the access control process for said composite structure according to an access frequency notified by each said processor module.

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