@Override
    public short getDFSReplication() {
      return getStringOrDefault(DFS_REPLICATION_BYTES, Short::valueOf, DEFAULT_DFS_REPLICATION);
    }
Set the mob compact partition policy for the family.
@param policy policy type
@return this (for chained invocation)
hbase-client/src/main/java/org/apache/hadoop/hbase/client/ColumnFamilyDescriptorBuilder.java