@Override
    public void reverseScan(final byte[] startKey, final byte[] endKey, final int limit, final boolean readOnlySafe,
                            final KVStoreClosure closure) {
        reverseScan(startKey, endKey, limit, readOnlySafe, true, closure);
    }
KVStore based on RAFT replica state machine.

@author jiachun.fjc
jraft-rheakv/rheakv-core/src/main/java/com/alipay/sofa/jraft/rhea/storage/RaftRawKVStore.java