We have recently seen a number of failures during e2e tests caused by java.lang.OutOfMemoryError: Java heap space. Example here. We increased the max heap but still see the same problem. We should investigate the cause of this issue and resolve it without just allocating more resources.

Hints:

• It could be a large number of events with the same timestamp being read, as there is no upper bound on this (although the generator shouldn't do this)