Details
Critical Description
We develop web application, where client sends REST request and our application downloads messages from Kafka and sends those messages back to client. In our web application we use "New Consumer API" (not High Level nor Simple Consumer API).
Problem occurs in case of disabling Kafka and web application is running on. Application receives request and tries to poll messages from Kafka. Processing is on that line blocked until Kafka is enabled.
ConsumerRecords<byte[], byte[]> records = consumer.poll(1000);
Timeout parameter of the poll method has no influence in such case. I expect poll method could throw some Exception describing about connection issues.