SHOW HOSTS

SHOW HOSTS语句可以显示Graph、Storage、Meta服务主机信息、版本信息。

语法

  1. SHOW HOSTS [GRAPH | STORAGE | META];

不添加服务名，直接使用SHOW HOSTS，会显示Storage服务主机信息，以及leader总数、leader分布和分片分布。

示例

  1. nebula> SHOW HOSTS;
  2. +-------------+-------+----------+--------------+----------------------------------+------------------------------+
  3. | Host        | Port  | Status   | Leader count | Leader distribution              | Partition distribution       |
  4. +-------------+-------+----------+--------------+----------------------------------+------------------------------+
  5. | "storaged0" | 9779  | "ONLINE" | 8            | "docs:5, basketballplayer:3"     | "docs:5, basketballplayer:3" |
  6. | "storaged1" | 9779  | "ONLINE" | 9            | "basketballplayer:4, docs:5"     | "docs:5, basketballplayer:4" |
  7. | "storaged2" | 9779  | "ONLINE" | 8            | "basketballplayer:3, docs:5"     | "docs:5, basketballplayer:3" |
  8. +-------------+-------+----------+--------------+----------------------------------+------------------------------+
  10. nebula> SHOW HOSTS GRAPH;
  11. +-----------+------+----------+---------+---------------+--------+
  12. | Host      | Port | Status   | Role    | Git Info Sha | Version |
  13. +-----------+------+----------+---------+--------------+---------+
  14. | "graphd"  | 9669 | "ONLINE" | "GRAPH" | "3ba41bd"    | "2.6.0" |
  15. | "graphd1" | 9669 | "ONLINE" | "GRAPH" | "3ba41bd"    | "2.6.0" |
  16. | "graphd2" | 9669 | "ONLINE" | "GRAPH" | "3ba41bd"    | "2.6.0" |
  17. +-----------+------+----------+---------+--------------+---------+
  19. nebula> SHOW HOSTS STORAGE;
  20. +-------------+------+----------+-----------+--------------+---------+
  21. | Host        | Port | Status   | Role      | Git Info Sha | Version |
  22. +-------------+------+----------+-----------+--------------+---------+
  23. | "storaged0" | 9779 | "ONLINE" | "STORAGE" | "3ba41bd"    | "2.6.0" |
  24. | "storaged1" | 9779 | "ONLINE" | "STORAGE" | "3ba41bd"    | "2.6.0" |
  25. | "storaged2" | 9779 | "ONLINE" | "STORAGE" | "3ba41bd"    | "2.6.0" |
  26. +-------------+------+----------+-----------+--------------+---------+
  28. nebula> SHOW HOSTS META;
  29. +----------+------+----------+--------+--------------+---------+
  30. | Host     | Port | Status   | Role   | Git Info Sha | Version |
  31. +----------+------+----------+--------+--------------+---------+
  32. | "metad2" | 9559 | "ONLINE" | "META" | "3ba41bd"    | "2.6.0" |
  33. | "metad0" | 9559 | "ONLINE" | "META" | "3ba41bd"    | "2.6.0" |
  34. | "metad1" | 9559 | "ONLINE" | "META" | "3ba41bd"    | "2.6.0" |
  35. +----------+------+----------+--------+--------------+---------+

最后更新: November 1, 2021