Patent ID: 9037899
Filing Date: 2015-05-19
Classification: G06F

Abstract:
1. A method for managing quorum services in a cluster infrastructure for reliable failover of shared resources, comprising: responsive to detecting, using a processor, by a quorum service, a plurality of liveness failures of at least two failed nodes from among a plurality of nodes in a domain of a cluster infrastructure layer of a cluster environment within a limited time frame, adding the at least two failed nodes to a list of nodes set to pending to be fenced by a group leader node from among the plurality of nodes; determining, by the quorum service, whether the at least two failed nodes include the group leader node; responsive to the at least two failed nodes not including the group leader node, triggering, by the quorum service, the group leader node to trigger at least one fencing operation to fence the at least two failed nodes in the list of nodes; and responsive to the at least two failed nodes including the group leader node, setting a new node as the group leader node and triggering, by the quorum service, the new node set as the group leader node to trigger the at least one fencing operation to fence the at least two failed nodes in the list of nodes.