Connection timeout

[TccccD]

When the network is disconnected, the server will reconnect after ten minutes, but select() always returns the connection timeout.
The select() is in s3_filesys.cc CURLReadStreamBase::FillBuffer().

And, I changed select() to curl_multi_wait(), and this problem still occurs. It is the reason of my system or the reason of the server ?

@rahul003 @tqchen thanks!

[TccccD]

If finish reading a batch of data and then train for a longer time, it will get an error:
"request failed with error Transferred a partial file"
Why is this happening?
@rahul003 @tqchen
it might be "firewalls timing out"?