fix Get EOF and Client.Timeout exceeded while awaiting headers

iyear · Jun 15, 2021 · 2390200 · 2390200
1 parent 0c2cc1e
commit 2390200
Showing 1 changed file with 10 additions and 4 deletions.
diff --git a/model/client.go b/model/client.go
@@ -38,8 +38,16 @@ var client = &http.Client{}
 func init() {
  client.Timeout = 10 * time.Second
  tp := http.DefaultTransport.(*http.Transport).Clone()
- tp.MaxIdleConns = 100
- tp.MaxIdleConnsPerHost = 100
+ //TODO
+ //https://gocn.vip/topics/11970
+ //DefaultMaxIdleConnsPerHost 设置的太小就会导致一个问题,
+ //在大量请求的情况下去访问特定的 host 的时候,长连接会退化成短链接.
+ tp.MaxIdleConns = 0
+ tp.MaxIdleConnsPerHost = 50
+ //to avoid "context deadline exceeded (Client.Timeout exceeded while awaiting headers)"
+ //https://cloud.tencent.com/developer/article/1529840
+ tp.IdleConnTimeout = 5 * time.Second
+
  client.Transport = tp
 }
 func NewClient(clientId string, clientSecret string) *Client {
@@ -73,8 +81,6 @@ func (c *Client) GetTokenWithCode(code string) (error error) {
  if err != nil {
  return err
  }
- //prevents the connection from being re-used
- ////https://stackoverflow.com/questions/17714494/golang-http-request-results-in-eof-errors-when-making-multiple-requests-successi
  resp, err := client.Do(req)
  if err != nil {
  return err