From this many records on, the index is rebuilt once (reindexAll) instead of each
record's postings being taken out of the shards it touches: one record touches 130–180
of the 256 shards, so the rebuild is the cheaper of the two well before a thousand.
From this many records on, the index is rebuilt once (
reindexAll) instead of each record's postings being taken out of the shards it touches: one record touches 130–180 of the 256 shards, so the rebuild is the cheaper of the two well before a thousand.