changeover_percent
Background
This option is a safety measure to prevent an update from swapping views if too few documents were gathered.
At the end of an update the live and offline views are swapped to make the new documents and indexes available to users. Before the swap is performed the number of documents in the older live view is compared to the number in the newer offline view and the changeover percent used to determine if the update has been successful.
If the percentage:
(number of new documents / number of old documents) * 100
is less than the changeover_percent
value then the swap will not proceed.