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Leasing for failure detection

  • US 20010000812A1
  • Filed: 12/20/2000
  • Published: 05/03/2001
  • Est. Priority Date: 10/11/1996
  • Status: Active Grant
First Claim
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1. A method in a data processing system having a client and a server, comprising the steps of:

  • requesting a lease by the client from the server to use a resource managed by the server, the lease request containing a first recovery routine;

    granting the lease by the server so that the client can utilize the resource tor a period of time and sending a second recovery routine to the client;

    utilizing the resource by the client;

    determining by the client when the period of time is near expiration;

    sending a request to the server to renew the lease when the client determines that the lease is near expiration;

    determining whether the renew request is successful;

    invoking the second recovery routine by the client to perform failure recovery for the server when the client determines that the renew request is unsuccessful;

    determining by the server when the lease has expired;

    invoking the first recovery routine by the server when the lease has expired to perform failure recovery for the client.

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