Network Error (tcp_error)
A communication error occurred: "Can't send more"
上传大文件（例如 200MB）时发生错误。我已经更改了以下设置：
upload_max_filesize = 300M
post_max_size = 2G
max_execution_time = 86400
max_file_uploads = 40
memory_limit = 300M
FcgidMaxRequestLen = 1677721600
我还应该更改哪些内容？
你最好尝试分块上传。传输大内容可能会失败
https://github.com/blueimp/jQuery-File-Upload/wiki/Chunked-file-uploads