private void doPutAlls(Region<Object, Object> region) {
    Map<Object, Object> map = new HashMap<>();
    map.put(0, 0);
    map.put(1, 1);
    map.put(2, 2);
    map.put(3, 3);

    region.putAll(map, "putAllCallback");
    region.putAll(map);
    region.putAll(map);
    region.putAll(map);
  }
2 servers, 2 clients.One client to one server. Put from c1 to s1. Now put from c2. So since
there will be a hop at least once, fetchservice has to be triggered. Now put again from
c2.There should be no hop at all.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/PartitionedRegionSingleHopDUnitTest.java