The minimum number of documents in a single generation for it to be considered for re-indexing.
Can be set in: collection.cfg
The minimum number of documents a generation must have for it to be considered to be re-indexed. Used with push.scheduler.generation.re-index.killed-percent.
By default, a generation must have 1 million documents before it can be considered for re-index by push.scheduler.generation.re-index.killed-percent.