Tolerating failures using concurrency in a cluster

A data processing system for tolerating failures using concurrency in a clustered data processing environment, the data processing system comprising:

• a storage device including a storage medium, wherein the storage device stores computer usable program code;
• and
• a processor, wherein the processor executes the computer usable program code, and wherein the computer usable program code comprises:
• computer usable code for detecting a failure in a first computing node, the first computing node serving an application in a cluster of computing nodes;
• computer usable code for selecting a subset of actions from a set of actions, the set of actions configured to transfer the serving of the application from the first computing node to a second computing node in the cluster;
• computer usable code for reordering the set of actions such that the subset of actions can be performed before a second subset of actions in the set of actions;
• computer usable code for setting a waiting period for the first computing node;
• computer usable code for allowing the first computing node to continue serving the application in the cluster during the waiting period;
• computer usable code for performing during the waiting period, concurrently with the first computing node serving the application, the subset of actions at the second computing node;
• and
• computer usable code for aborting, responsive to receiving a signal of activity from the first computing node during the waiting period, the concurrent operation of the second computing node in the cluster.