Method, system and computer readable recording medium for determining major group under split-brain syndrome

A non-transitory computer-readable recording medium comprising an executable program used to determine a major group among at least two groups created by splitting an initial group comprising a plurality of nodes in a network-based distributed environment, and when executed, the executable program causes performance of the following steps:

• comparing a number of nodes included in a first group with a number of nodes included in a second group, the first and second groups being among the at least two groups created by splitting the initial group;
• acquiring history information of the nodes included in the first group and the second group;
• and
• determining the first group or the second group as the major group using at least one of a result of comparing the number of nodes and the acquired history information,
• wherein the first group and the second group are created from the initial group being split at least twice, and the first group or the second group is determined as the major group only when a group which both of the first group and the second group recently belonged to was a major group, and
• wherein the acquired history information comprises information on time points when the nodes included in the first group and the second group joined the initial group.

A distributed environment management system comprising a plurality of nodes, comprising:

• a storage device;
• and
• a history information of the plurality of nodes stored on the storage device,
• wherein when an initial group of the nodes is split into at least two groups of the nodes at least one of the nodes is configured to determine one of the at least two groups as a major group using at least one of the number of nodes included in each split group and the history information,
• wherein a first group and a second group are created from the initial group being split at least twice, and the first group or the second group is determined as the major group only when a group which both of the first group and the second group recently belonged to was a major group, and
• wherein the history information comprises information on time points when the nodes joined the initial group.