Method and system for providing coordinated checkpointing to a group of independent computer applications
AssigneeOpen Invention Networks, LLC
InventorAllan Havemose
Life of this patent
Estimating the term…
Abstract
A method and system of checkpointing single process application groups and multi-process application groups. In an exemplary embodiment, the method may include creating at least one full checkpoint for each application in an application group, and creating at least one incremental application checkpoint for each application in the application group. Further, each of the at least one incremental application checkpoint may be automatically merged against a corresponding full application checkpoint. Further, checkpointing may be synchronized across all applications in the application group. In the exemplary embodiment, each application may use both fork( ) and exec( ) in any combination.
Claims20
A method, comprising:
- creating at least one full application checkpoint for one or more applications;
- creating at least one incremental application checkpoint for the one or more applications;
- merging the at least one incremental application checkpoint and the at least one full application checkpoint;
- 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.
A non-transitory computer readable storage medium comprising instructions for:
- creating at least one full application checkpoint for one or more applications;
- creating at least one incremental application checkpoint for the one or more applications;
- merging the at least one incremental application checkpoint and the at least one full application checkpoint;
- 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.
A system, comprising:
- a processor;
- and
- memory;
- wherein the processor is configured to:
- create at least one full application checkpoint for one or more applications;
- create at least one incremental application checkpoint for the one or more applications;
- merge the at least one incremental application checkpoint and the at least one full application checkpoint;
- synchronize checkpointing across the one or more applications;
- and
- preload interceptors for fork( ) and exec( );
- wherein said interceptor for exec( ) preserves existing application state when said application state is stored in memory prior to calling a system call exec( ) and said application state is restored from the memory after the system call exec( ) returns.
Dependencies are inferred from the claim text.