Cache data processing using cache cluster with configurable modes

A method, comprising:

• sending a cache processing request to a master cache service node in a plurality of cache service nodes, wherein the cache processing request includes an operation;
• determining that the master cache service node has failed;
• and
• in response to the determination that the master cache service node has failed:
• selecting a backup cache service node from the plurality of cache service nodes to perform the cache processing request;
• sending the cache processing request to the backup cache service node, wherein a task execution thread pool prevents one or more cache service nodes from the plurality of cache service nodes other than the backup cache service node from performing the operation;
• receiving a successful operation result corresponding to the cache processing request from the backup cache service node;
• and
• in response to the successful operation result, storing the operation and the successful operation result in a cluster operation task queue, wherein the operation and the successful operation result are to be copied from the cluster operation task queue to the master cache service node in the event that the master cache service node recovers from failure.

A computer program product, wherein the computer program product is embodied in a non-transitory computer readable storage medium and comprises computer instructions for:

• sending a cache processing request to a master cache service node in a plurality of cache service nodes, wherein the cache processing request includes an operation;
• determining that the master cache service node has failed;
• and
• in response to the determination that the master cache service node has failed:
• selecting a backup cache service node from the plurality of cache service nodes to perform the cache processing request;
• sending the cache processing request to the backup cache service node, wherein a task execution thread pool prevents one or more cache service nodes from the plurality of cache service nodes other than the backup cache service node from performing the operation;
• receiving a successful operation result corresponding to the cache processing request from the backup cache service node;
• and
• in response to the successful operation result, storing the operation and the successful operation result in a cluster operation task queue, wherein the operation and the successful operation result are to be copied from the cluster operation task queue to the master cache service node in the event that the master cache service node recovers from failure.