kafka消息确认ack_什么是确认（ACK）？ ACK代表什么？

kafka消息确认ack

ACK：致谢 (ACK: Acknowledgment)

An acknowledgment (ACK) is a signal that is passed among the communicating processes, computers, or devices to indicate acknowledgment, or delivery of the message, as a component of a communications protocol in the process of data networking, telecommunications, and computer buses. The acknowledgment signal, which is sent to discard a formerly acknowledged or received message or to specify some type of error, is known as negative-acknowledgment (NAK or NACK). Acknowledgments and negative acknowledgments put in the picture of a sender of the receiver's condition or situation so that it can regulate its condition according to the situation.

确认(ACK)是在通信过程，计算机或设备之间传递的信号，用于指示消息的确认