Patent ID: 9098392
Filing Date: 2015-08-04
Classification: G06F

Abstract:
1. A computer-implemented method for changing fencing modes in clusters, at least a portion of the method being performed by a computing device comprising at least one processor, the method comprising: identifying a cluster of nodes configured with a functioning fencing mode for resolving split-brain scenarios within the cluster; identifying at least one application regulated by the functioning fencing mode running on at least one node in the cluster of nodes; identifying a request to reconfigure the cluster of nodes with a new fencing mode while the cluster of nodes is not in a split-brain scenario; transmitting the request to each node in the cluster of nodes; in response to the request, for each node within the cluster of nodes: after receiving the message indicating the success of the test from every node within the cluster of nodes, reconfiguring each node within the cluster of nodes to use the new fencing mode without first halting output operations from the application on the node to at least one resource to which access was regulated by the functioning fencing mode.