有什么方法可以知道orientdb中是否存在集群？

Question

是否有命令/查询来了解数据库中是否存在群集？或者知道数据库中的集群列表？

感谢。

Answer 1

使用文档API ：

graph.getRawGraph().existsCluster("V");
graph.getRawGraph().existsCluster(graph.getRawGraph().getClusterNameById(9));

使用图谱API ：

int main()
{
    int howMany;
    cout << "How many?";
    cin >> howMany;

    Worker * workers = new Worker[howMany];

Answer 2

来自API文档：

  To view all clusters, from the console run the CLUSTERS command:

  CLUSTERS:
  -------------+------+-----------+-----------+
  NAME        | ID   | TYPE      | RECORDS   |
  -------------+------+-----------+-----------+
  account     | 11   | PHYSICAL  |      1107 |
  actor       | 91   | PHYSICAL  |         3 |
  address     | 19   | PHYSICAL  |       166 |
  animal      | 17   | PHYSICAL  |         0 |
  animalrace  | 16   | PHYSICAL  |         2 |
  ....        | .... | ....      |      .... |
  -------------+------+-----------+-----------+
  TOTAL                                23481 |
  --------------------------------------------+