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2. Currently the producer sends requests in a non-blocking way and does not wait for response. If a socket is disconnected the network client will fail the requests with a NetworkException. However, It might take very long for TCP connection to timeout. And this mechanism is not sufficient in some cases. For example, if a broker is behind a VIP, it is possibel that the broker is down but the connection between client and VIP is still alive. In this case the client will never be able to receive the response. Adding a client side request timeout will help solve such kind of issues.
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