问调用scf返回错误:请求内容超过限制？

$ base64 q22.cap | curl -d @- https://service-g5ht32mi-xxx.gz.apigw .tencentcs.com/test/main_handler % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 12.2M 0 94 100 12.2M 5 769k 0:00:16 0:00:16 --:--:-- 2587k {" errorCode":1,"errorMessage":"Content length[13337262] exceed sync content length [6291456]"}