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doc/TD-32681-drop-dnode-add-option

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dmchen 2024-10-25 09:51:57 +00:00
parent dd913a211d
commit c404086a5a
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12
docs/en/14-reference/03-taos-sql/21-node.md
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@ -27,20 +27,14 @@ The preceding SQL command shows all dnodes in the cluster with the ID, endpoint,
## Delete a DNODE ## Delete a DNODE
```sql ```sql
DROP DNODE dnode_id DROP DNODE dnode_id [force] [unsafe]
``` ```
Note that deleting a dnode does not stop its process. You must stop the process after the dnode is deleted. Note that deleting a dnode does not stop its process. You must stop the process after the dnode is deleted.
```sql Only online node is allowed to be deleted. Drop is executed with force option if the offline node need to be deleted.
DROP DNODE dnode_id force
```
Only online node is allowed to be deleted. Drop is executed forcely if the offline node need to be deleted.
```sql Drop is executed with unsafe option if the node with single replica is offline, and the data on it is not able to be restored.
DROP DNODE dnode_id unsafe
```
Drop is executed unsafely if the node with single replica is offline, and the data on it is not able to be restored.
## Modify Dnode Configuration ## Modify Dnode Configuration

12
docs/zh/14-reference/03-taos-sql/21-node.md
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@ -27,20 +27,14 @@ SHOW DNODES;
## 删除数据节点 ## 删除数据节点
```sql ```sql
DROP DNODE dnode_id DROP DNODE dnode_id [force] [unsafe]
``` ```
注意删除 dnode 不等于停止相应的进程。实际中推荐先将一个 dnode 删除之后再停止其所对应的进程。 注意删除 dnode 不等于停止相应的进程。实际中推荐先将一个 dnode 删除之后再停止其所对应的进程。
```sql 只有在线节点可以被删除。如果要强制删除离线节点，需要执行强制删除操作, 即指定force选项。
DROP DNODE dnode_id force
```
只有在线节点可以被删除。如果要强制删除离线节点，需要执行强制删除操作。
```sql 当节点上存在单副本，并且节点处于离线，如果要强制删除该节点，需要执行非安全删除，即制定unsafe，并且数据不可再恢复。
DROP DNODE dnode_id unsafe
```
当节点上存在单副本，并且节点处于离线，如果要强制删除该节点，需要执行非安全删除，并且数据不可再恢复。
## 修改数据节点配置 ## 修改数据节点配置