@Override
  public void upsert(Iterable<ExtendedCell> cells, long readpoint, MemStoreSizing memstoreSizing) {
    for (ExtendedCell cell : cells) {
      upsert(cell, readpoint, memstoreSizing);
    }
  }
Issue any post update synchronization and tests
@param currentActive updated segment
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/AbstractMemStore.java