Streaming event data to different consumer instances of one event consumer during failure of a consumer instance’s ability to process the event data

A non-transitory machine readable medium storing a program for execution by at least one processing unit for providing data regarding events that is stored in a data store to a set of consumers, the program comprising sets of instructions for:

• at the event server:
• providing, to a first instance of a particular consumer that comprises a plurality of instances, a stream of data regarding a first event that is stored in a set of one or more partitions of the data store assigned to the first instance;
• receiving, from the first instance, notification that the first instance failed to process the stream of data;
• unassigning the set of partitions to the first instance;
• assigning the set of partitions to a second instance of the particular consumer;
• and
• providing, to the second instance, the stream of data regarding the first event.