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Method and system for providing coordinated checkpointing to a group of independent computer applications

  • US 9,323,623 B1
  • Filed: 04/02/2015
  • Issued: 04/26/2016
  • Est. Priority Date: 08/26/2005
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • merging at least one full application checkpoint for one or more applications and at least one full application checkpoint for one or more applications;

    synchronizing checkpointing across the one or more applications; and

    preloading interceptors for fork( ) and exec( );

    wherein said interceptor for exec( ) preserves existing application state by storing said application state in memory prior to calling a system call exec( ) and restoring said application state from the memory after the system call exec( ) returns.

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