Horizontal scaling of version caches in a distributed high-concurrency multi-user environment

A non-transitory computer-readable storage medium for tangibly storing computer program instructions capable of being executed by a computer processor, the computer program instructions defining steps of:

• replicating a first version cache to generate a replicated first version cache;
• receiving a write operation including data at the first version cache;
• generating a delta for the write operation representing a change in the data;
• writing the delta to a replication log storing an ordered set of deltas including the delta;
• and
• applying the ordered set of deltas at the replicated first version cache.

A system comprising:

• a processor configured to:
• replicate a first version cache to generate a replicated first version cache;
• receive a write operation including data at the first version cache;
• generate a delta for the write operation representing a change in the data;
• write the delta to a replication log storing an ordered set of deltas including the delta;
• and
• apply the ordered set of deltas at the replicated first version cache.