[GitHub] [incubator-apisix] stone4774 edited a comment on issue #1452: feature: Load balancing of weighted-upstream

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stone4774 edited a comment on issue #1452:
URL: https://github.com/apache/incubator-apisix/issues/1452#issuecomment-614516119


   @moonming 
   
   When a service publishes a new version, you can create a new upstream (similar to the cluster in envoy) for the instance of the new version, configure it to the service, and specify the weight as follows:
   
   ```
   curl http://127.0.0.1:9080/apisix/admin/services/200 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
   {
       "weighted_upstreams": {
           "total_weight": 100,
           "upstream_ids":[
               {
                    "upstream_id":1,
                    "weight": 99
               },{
                    "upstream_id":2,
                    "weight": 1
               }
           ]
       }
   }'
   ```
   
   I think it's very important, but at present, apsix doesn't support it. Now if I want to use a small amount of traffic to verify the new version, I have to find some routes with small traffic to try, but these traffic is selective and can't cover all situations
   
   We can refer to the implementation of envoy:
   https://www.envoyproxy.io/docs/envoy/v1.14.0/configuration/http/http_conn_man/traffic_splitting
   
   


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