private Throwable unmarkCompacting(Set<SSTableReader> unmark, Throwable accumulate) {
accumulate = tracker.apply(updateCompacting(unmark, emptySet()), accumulate);
// when the CFS is invalidated, it will call unreferenceSSTables(). However,
// unreferenceSSTables only deals
// with sstables that aren't currently being compacted. If there are ongoing compactions that
// finish or are
// interrupted after the CFS is invalidated, those sstables need to be unreferenced as well, so
// we do that here.
accumulate = tracker.dropSSTablesIfInvalid(accumulate);
return accumulate;
}
