why a frame size is too bigger

[Lu.Qin]

Hi,All


I see a log in Recent Logs like this :
Read a frame size of 1330664521, which is bigger than the maximum allowable 
buffer size for ALL connections.
or
Read an invalid frame size of -1811886609. Are you using TFramedTransport on 
the client side?




How can I config the maximum allowable buffer size ?
and Why the size is small then zero?


Thanks.