Detecting and correcting node misconfiguration of...

Details Detecting and correcting node misconfiguration of... Detecting and correcting node misconfiguration of...

2005-09-27

2008-10-14

Meky, Moustafa M (Department: 2157)

Electrical computers and digital processing systems: multicomput

Multicomputer data transferring via shared memory

C709S224000

Reexamination Certificate

active

07437426

ABSTRACT:
A group of shared-storage resources are being maintained as replicas by the nodes of a cluster. Each node in the cluster maintains a set of pointers to the members of the group. As membership changes, the set of pointers should be changed accordingly. For various, reasons, the set of pointers of a node are not changed and may point to shared-storage resources that are no longer members of the group and/or not point to shared-storage resources that are members of the group. By recording a history of membership changes in the shared-storage resources, and comparing the recording to what a node thinks the shared resources should be, an incorrect set of pointers can be detected and corrective active undertaken.

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