@Override
  public TableDescriptor getTableDescriptor(TableName tableName) throws IOException {
    TableDescriptors tds = services.getTableDescriptors();
    return tds != null ? tds.get(tableName) : null;
  }
Use to add balancer decision history to ring-buffer
hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/MasterClusterInfoProvider.java