Patent ID: 6446125
Filing Date: 2002-09-03
Classification: H04L

Abstract:
A resource manager for each node of a plurality of nodes of a distributed data processing system, wherein each node is capable of acting as a coordinator node, an intermediate node, and a leaf node, and wherein each node receives an arriving session to process, the resource manager comprising:determining means for determining whether a node corresponding to the determining means can support the arriving session; request sending means for sending, if the corresponding node is acting as a coordinator node or an intermediate node, a support request to child nodes which are to process the arriving session; response sending means for sending, if the corresponding node is acting as an intermediate node or a leaf node, a response to a parent node, wherein the response indicates whether the arriving session can be supported; and, commit sending means for sending, if the corresponding node is acting as a coordinator node and if the arriving session can be supported by the nodes which are to process the arriving session, a commit message to the child nodes which are to process the arriving session.