公开(公告)号：CA2719673A1

公开(公告)日：2011-01-18

申请号：CA2719673

申请日：2010-11-05

Applicant: IBM CANADA

Inventor： BAE MYUNG M ,  BUCKLER ANDREW D ,  CHAN YUE FONG Y ,  GARCIA-ARELLANO CHRISTIAN M ,  HURAS MATTHEW A ,  MUELLER MARKUS ,  SACHEDINA AAMER ,  SCHMUCK FRANK B ,  VOLOBUEV YURI

IPC: G06F11/07 ,  G06F15/16

Abstract: An illustrative embodiment of a computer-implemented process for fencing shared cluster resources in event of a possible split-brain, identifies a failing resource of a node within a set of shared resources to form an identified failing resource, fences a subset of the set of shared resources to form a winning subset of shared resources and prevents the identified failing resource from communicating with the winning subset of shared resources using a white list maintained at each database system of the winning subset of shared resources. The computer-implemented process further determines whether the identified failing resource has been cleared to form a cleared failing resource and responsive to a determination that the identified failing resource has been cleared, rejoins the cleared failing resource with the winning subset of the set of shared resources absent a re-boot of the cleared failing resource.