The walk's order: partition by partition, each by the version key.
Flushes what the seeding and unstamp left to do: the measured window pays for neither.
Removes the access attributes from the history of every account but except, as an import writes a log. The account's walk record goes too, unless walkRecord keeps it: a run with nothing to walk.
The database's operations in progress (currentOp), by operation, collection and whether they wait for a lock.
currentOp
The account's walk record; null when none is recorded.