Indexing a rapidly modified group of items (e.g. a time series, a group of counters,
or a patched collection) can preoccupy RavenDB with lengthy consecutive indexing of
small batches of items.
Throttles Index Performance View
The Indexing Performance view shown above demonstrates the procession of a throttled index
along the timeline, with a 1500 Milliseconds gap between consecutive batches.
Throttling offers indexing-free time gaps that the database can use for other
tasks and the procession of larger batches when indexing does take place.
Throttled indexes are kept stale
as long as their procession is incomplete.
They are therefore expected to remain stale longer than indexes that are processed sequentially.