Determines the largest segment (measured by total /// byte size of the segment's files, in MB) that may be /// merged with other segments. Small values (e.g., less /// than 50 MB) are best for interactive indexing, as this /// limits the length of pauses while indexing to a few /// seconds. Larger values are best for batched indexing /// and speedier searches.
/// ///Note that {@link #setMaxMergeDocs} is also /// used to check whether a segment is too large for /// merging (it's either or).
///