I used 2 different consumers to consume data from the same topic. I expected the 2 consumers to return the same result. But I found that there were messages which was caught by the first consumer but failed to be caught by second consumer. I had no idea what caused this. Can someone told me what I can do to guarantee that no message should be lost in consumption? First I tried to set a time gap which was 1 hour. Then I used 2 different consumers to get messages which were created in an hour.I compared the number of messages caught by 2 consumers, they are different. I tried setting different time gap but the outcome from different consumers were still different. Continue reading...
