Distributed system having an improved method and apparatus for c

Details Distributed system having an improved method and apparatus for c Distributed system having an improved method and apparatus for c

1995-08-15

1998-12-01

Donaghue, Larry D.

39520031, 39518202, G06F 1100

Patent

active

058450823

ABSTRACT:
The invention provides a node apparatus and a storage apparatus for use with a distributed system and a recovery method for a resource managing server for a distributed system, which are improved in that the load to a server upon recovery of the server is reduced and the memory area of the server can be utilized effectively. The node apparatus is used with a distributed system which includes a plurality of node apparatus each including one or both of a client and a resource managing server and a storage apparatus for storing checkpoints and wherein the plurality of node apparatus and the server are interconnected by way of a network. The node apparatus at least includes a client, and includes a checkpoint taking unit for allowing, in ordinary operation of the distributed system, the client provided in the node apparatus to take a checkpoint regarding a resource managed by the server, and a unit for storing the checkpoint taken by the checkpoint taking unit in the ordinary operation of the distributed system into the storage apparatus.

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