Deadlock in HRegion.batchUpdate

public void batchUpdate(BatchUpdate[] bus, Integer[] locks)

Takes out splitsAndClosesLock before calling checkResources. If checkResources stalls waiting for a cache flush, and a split starts before the flush, HRegion.close deadlocks when it tries to acquire splitsAndClosesLock

This never resolves because batchUpdate is waiting for a flush that will never happen since close has already disabled them.