Do I need to use connection pool to write data to Doris using stream load？

[GuiSong01]

When I use a go http client to send data to doris, I create a http connection pool for connection reused; I start to write data, the go http client report many error:"http: server closed idle connection", and I find many TCP connection with TIME_WAIT status in Doris BE 8040 port.
I read code of doris-streamloader, it does not use http connection pool,and a new http client is created each time data sent.
So, is it recommended to use connection pool or Doris doesn't support it?