nanamikon commented on issue #7301:
URL: https://github.com/apache/apisix/issues/7301#issuecomment-1163213414
Refer to least_conn.lua
```
get = function (ctx)
.......
info.score = info.score + info.effect_weight
servers_heap:update(server, info)
return server
end
```
```
after_balance = function (ctx, before_retry)
local server = ctx.balancer_server
local info = servers_heap:valueByPayload(server)
info.score = info.score - info.effect_weight
servers_heap:update(server, info)
......
```
I found that the counter will add after picking, and reduce in the log
phase， so this will work only for the
http request of upgrade。 After ws upgrade， apisix will not kown how many
active tcp connections now
In the product env， we find least_conn fall back to rr through our monitor
dashboard。
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