upstreams problem
[2021-03-13 03:42:00.884] * upstreams active: 396 sleep: 0 error: 0 total: 396
[2021-03-13 03:42:00.885] * miners    active: 399 max: 400

I dn know, why do I have so many upstreams
this causes each upstream to send a url request to the pool

