In 2.x versions of ECS Streamer, when Enterprise Vault asked for an enumeration of the objects in a partition, ECS Streamer collected the entire listing before returning to Enterprise Vault with the first object. This activity fails if a lot of objects must be listed. ECS version 2.x gathers objects in groups of 1,000. Thus, the first object is returned much faster than with previous versions, but this ensures that the request will not time out waiting for all the objects to be fetched.
