Issue description
When both the routing and traffic-split plugins use upstream_id to bind upstream, the request distribution is not accurate.
1、add route and bind plugin
The upstream_id is 1, the response data is 1980, and the upstream_id is 2 the response data is 1981.
curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
"create_time":1614743731,
"update_time":1614745342,
"uris":[
"/*"
],
"name":"luarocks_cn",
"methods":[
"GET",
"HEAD",
"POST",
"PUT",
"DELETE",
"OPTIONS",
"PATCH"
],
"vars":[
],
"plugins":{
"proxy-rewrite":{
"disable":false,
"scheme":"http"
},
"traffic-split":{
"disable":false,
"rules":[
{
"match":[
{
"vars":[
[
"uri",
"==",
"/hello"
]
]
}
],
"weighted_upstreams":[
{
"upstream_id":"2"
}
]
}
]
}
},
"upstream_id":"1",
"status":1
}
'2、Test plugin
The vars rule passes:
$ curl http://127.0.0.1:9080/hello
1981
The vars rule failed：
$ curl http://127.0.0.1:9080/hello12
1980
The vars rule passes:
$ curl http://127.0.0.1:9080/hello
1981
The vars rule failed (an exception occurred)：
$ curl http://127.0.0.1:9080/hello12
1981
Issue description
When both the routing and traffic-split plugins use upstream_id to bind upstream, the request distribution is not accurate.
1、add route and bind plugin
The upstream_id is 1, the response data is 1980, and the upstream_id is 2 the response data is 1981.
2、Test plugin
The vars rule passes:
The vars rule failed：
The vars rule passes:
The vars rule failed (an exception occurred)：