anjia0532 commented on issue #6105:
URL: https://github.com/apache/apisix/issues/6105#issuecomment-1012895362
> > 同key数据结构不一致，常见的比如 node.nodes
无值{},有值[],更奇葩的是upstream的node.nodes[].nodes,通过接口更新的是{},通过dashboard更新的是[{},{}],就很难受
>
> Could you provide detailed steps to reproduce it?
>
> It's a bit weird in this case, because both `{}` and `[]` are valid
`nodes` values. The array format is preferable, because:
>
> 1. it can be PATCHed
> 2. it is extendable
> Could you provide detailed steps to reproduce it?
My env `apache/apisix:2.9-alpine` and `apache/apisix-dashboard:2.8`
ref doc
[docs/apisix/admin-api/#request-body-parameters-3](https://apisix.apache.org/docs/apisix/admin-api/#request-body-parameters-3)
`nodes`'s Description: `Hash table or array. If it is a hash table, the key
of the internal element is the upstream machine address list, the format is
Address + (optional) Port, where the address part can be IP or domain name,
such as 192.168.1.100:80, foo.com:80, etc. The value is the weight of node. If
it is an array, each item is a hash table with key host/weight and optional
port/priority. The nodes can be empty, which means it is a placeholder and will
be filled later. Clients use such an upstream will get 502 response.` means `{
"ip:port": weight} or [{"host":"", "weight ":1, "port":80}]`
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