In 0.8, if you send a set of messages in sync mode, the producer will throw
back an exception if at least one message can't be sent to the broker after
all retries. The client won't know which messages are sent successfully and
which are not. We do plan to improve the producer API after 0.8 that can
expose more information to the client.
On Mon, Feb 11, 2013 at 9:27 AM, Bob Jervis <[EMAIL PROTECTED]