tzssangglass commented on issue #3740:
URL: https://github.com/apache/apisix/issues/3740#issuecomment-789768684
```json
"weighted_upstreams":[
{
"upstream_id":"2"
}
]
```
should be
```json
"weighted_upstreams":[
{
"upstream_id":2
}
]
```
the type of `upstream_id` is number but not string.
by the way, it is an interesting bug
I added a debug log
```lua
core.log.warn("route.value.upstream_id: ",
core.json.encode(route.value.upstream_id))
```
between the line 71 and the line 72
https://github.com/apache/apisix/blob/a97ba0ddf7ce8c0aca2374b774f1da8f98913a09/apisix/http/route.lua#L70-L73
I found that when the bug appeared, the `upstream_id` changed from `1` to
`2`.
I don't know what caused the change.
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