Highly available cluster message passing facility

A method of configuring communication in a distributed computing system comprising a plurality of nodes, the method comprising:

• determining a configuration of said distributed computing system, wherein said configuration includes active nodes of said distributed computing system and links between said active nodes;
• initializing a connection module according to said system configuration, wherein said connection module is configured to manage inter-node links between nodes of said system;
• establishing connections between active nodes of said system via said inter-node links;
• detecting a change in said configuration of said system;
• reconfiguring said connection module according to said configuration change, in response to detecting said change.

A computer-readable storage medium comprising program instructions executable to:

• determine a configuration of a distributed computing system, wherein said configuration includes active nodes of said distributed computing system and links between said active nodes;
• initialize a connection module according to said system configuration, wherein said connection module is configured to manage inter-node links between nodes of said system;
• establish connections between active nodes of said system via said inter-node links;
• detect a change in said configuration of said system;
• reconfigure said connection module according to said configuration change, in response to detecting said change.