API request return "code":429,"message":"Busy"

[winlin]

Version v3.0.5-v3.0.7:

After several days running, I got this error for API nodes:

curl 127.0.0.1:180/v1/chain/get_info
{"code":429,"message":"Busy","error":{"code":1,"name":"","what":"","details":[]}}

it will recover by restarting the nodeos.

[Frank-AFN]

("http-max-bytes-in-flight-mb", bpo::value<uint32_t>()->default_value(500),

try to increase http-max-bytes-in-flight-mb param