Dynamic adjustment of entity assignment in a multi-data center environment

Techniques for handling the dynamic reassignment of entities among multiple data centers are provided. In one technique, for each task of a plurality of tasks that are associated with a first data center of a plurality of data centers, an entity identifier that is associated with the task is identified. A call to an entity routing service is initiated, where the call includes the entity A response to the call is received from the entity routing service, where the response indicates a particular data center. An entity processor that is different than the entity routing service processes the task only if the particular data center is the first data center. If the particular data center is different than the first data center, then a data structure that stores the task is updated to indicate the particular data center and the task is eventually processed in the particular data center.