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System and methodology providing workload management in database cluster

  • US 9,141,435 B2
  • Filed: 08/17/2007
  • Issued: 09/22/2015
  • Est. Priority Date: 07/30/2007
  • Status: Active Grant
First Claim
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1. A method for allocating workload amongst a plurality of database servers sharing access to data, the method comprising:

  • periodically collecting information about workload at each database server, wherein each database server is organized into one of a plurality of logical clusters, and wherein each logical cluster comprises at least one database server and is associated with a particular application;

    distributing the workload information to each of said plurality of database servers;

    in response to a client connected to a first database server requesting that work be performed, examining the workload information at the first database server to determine whether the requested work should be performed at a second database server having a lower workload than the first database server;

    if it is determined at the first database server that the work should be performed at the second database server, automatically transferring the client connection to the second database server and performing the requested work at the second database server; and

    otherwise, performing the requested work at the first database server.

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