@Override
  public SettableFuture<ConfigTaskResult> showCluster(final ShowCluster showCluster) {
    // As the implementation is identical, we'll simply translate to the
    // corresponding tree-model variant and execute that.
    final ShowClusterStatement treeStatement = new ShowClusterStatement();
    treeStatement.setDetails(showCluster.getDetails().orElse(false));
    return showCluster(treeStatement);
  }
FIXME Consolidate this clientManager with the upper one.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/execution/config/executor/ClusterConfigTaskExecutor.java