Cao Gaofei created IOTDB-3316:
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Summary: Add SHOW CLUSTER implementation for IoTDB MPP mode
Key: IOTDB-3316
URL: https://issues.apache.org/jira/browse/IOTDB-3316
Project: Apache IoTDB
Issue Type: New Feature
Components: Core/Cluster
Reporter: Cao Gaofei
Fix For: master branch
Attachments: image-2022-05-29-17-47-58-071.png
1. After the preliminary discussion, the output format of 'SHOW CLUSTER' is as
below.
|NodeID|Role|Status|Host|Ports|
|0|DataNode|Running
|192.168.10.100|{"rpc_port":"6667", "mpp_port":"6668",
"internal_port":""}|
|1|ConfigNode|Running|192.168.10.101| |
2. Some references of other distributed systems.
1) TDEngine 'show dnodes', displays the information of
'id、end_point、vnodes、cores、status、role、create_time'.
!https://apache-iotdb.feishu.cn/space/api/box/stream/download/asynccode/?code=MDBlZTQzNGJlNzQ3ZDM2MjgzODA4ZjdlY2E1YjIwNzdfZk1WTjdGbzZlM2I1NjJOWW1YSlkwcUhjdzJYcXNoUE1fVG9rZW46Ym94Y25hQ1RqNlRSdDdnVXNtT1NPWDhMRlNiXzE2NTM4MTczNzM6MTY1MzgyMDk3M19WNA|width=477,height=143!
2) Clickhouse 'SELECT * FROM system.clusters', displays the information of
'shard_num、shard_weight、replica_num、host_name、host_address、port、is_local、user、default_database、errors_count及estimated_recovery_time'.
┌─cluster───────────────┬─shard_num─┬─shard_weight┬─replica_num┬─host_name─┬─host_address─┬─port┬─is_local┬─user──┬─default_database┬─errors_count─┬─estimated_recovery_time┐
│ cluster_3shards_1replicas │ 1 │ 1 │ 1 │ node01 │ 192.168.10.100 │ 9000 │ 1 │
default │ │ 0 │ 0 │
│ cluster_3shards_1replicas │ 2 │ 1 │ 1 │ node02 │ 192.168.10.110 │ 9000 │ 0 │
default │ │ 0 │ 0 │
│ cluster_3shards_1replicas │ 3 │ 1 │ 1 │ node03 │ 192.168.10.120 │ 9000 │ 0 │
default │ │ 0 │ 0 │
│ test_cluster_two_shards │ 1 │ 1 │ 1 │ 127.0.0.1 │ 127.0.0.1 │ 9000 │ 1 │
default │ │ 0 │ 0 │
│ test_cluster_two_shards │ 2 │ 1 │ 1 │ 127.0.0.2 │ 127.0.0.2 │ 9000 │ 0 │
default │ │ 0 │ 0 │
│ test_cluster_two_shards_localhost │ 1 │ 1 │ 1 │ localhost │ ::1 │ 9000 │ 1 │
default │ │ 0 │ 0 │
│ test_cluster_two_shards_localhost │ 2 │ 1 │ 1 │ localhost │ ::1 │ 9000 │ 1 │
default │ │ 0 │ 0 │
│ test_shard_localhost │ 1 │ 1 │ 1 │ localhost │ ::1 │ 9000 │ 1 │ default │ │ 0
│ 0 │
│ test_shard_localhost_secure │ 1 │ 1 │ 1 │ localhost │ ::1 │ 9440 │ 0 │
default │ │ 0 │ 0 │
│ test_unavailable_shard │ 1 │ 1 │ 1 │ localhost │ ::1 │ 9000 │ 1 │ default │ │
0 │ 0 │
│ test_unavailable_shard │ 2 │ 1 │ 1 │ localhost │ ::1 │ 1 │ 0 │ default │ │ 0
│ 0 │
└─────────────────────┴──────┴──────────────┴─────────────┴───────────┴────────────────┴──────┴───────────────────────────
3) TiDB 'tiup cluster display', displays the informations of
'ID、Role、Host、Ports、OS、Status、Data Dir、Deploy Dir'.
!image-2022-05-29-17-47-58-071.png|width=636,height=220!
For Chinese developers, we can forward more information in the document link of
FeiShu.
https://apache-iotdb.feishu.cn/docs/doccnfObLV57B9XQ0Tebg8N6Dqf#
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