Systems and methods for cache warming in a distributed data storage system

A non-transitory machine readable medium, having instructions stored thereon, which when executed by a processing system of a distributed caching system, cause the processing system to perform operations for cache warming in a distributed storage system, comprising:

• detecting, by the processing system of the distributed caching system, a destructive change to one or more nodes of an existing cluster of cache data nodes;
• allocating, by the processing system, a new cluster of cache data nodes in a write-only mode;
• streaming data from each cache data node of the existing cluster to cache data nodes of the new cluster, the streaming occurring via one or more router nodes;
• in response to a data access request received by a router node of the distributed storage system, servicing the data access request from a selected cache data node of the existing cluster, and writing data from the data access request to a selected cache data node of the new cluster;
• and
• in response to a determination that a configurable amount of data from the cache data nodes of the existing cluster has been successfully streamed to the cache data nodes of the new cluster, reconfiguring, by the processing system, the new cluster of cache data nodes to a read-write mode for servicing new data access requests.

A distributed caching system, comprising:

• a memory;
• and
• a processing system coupled with the memory configured to:
• detect a destructive change to one or more of data nodes of an existing cluster of cache data nodes,
• allocating a new cluster of cache data nodes in a write-only mode,
• stream data from each cache data node of the existing cluster to cache data nodes of the new cluster, the streaming occurring via one or more router nodes,
• in response to a data access request received by a router node of the distributed storage system, service the data access request from a selected cache data node of the existing cluster, and write data from the data access request to a selected cache data node of the new cluster, and
• in response to a determination that a configurable amount of data from the cache data nodes of the existing cluster has been successfully streamed to the cache data nodes of the new cluster, reconfigure the new cluster of cache data nodes to a read-write mode for servicing new data access requests.