Hi Frank Bian, The DLQ means `Dead Letter Queue`, as you can see, all the messages will be redirected to DLQ when these's reconsumeTimes exceed the maxReconsumeTimes(default is 16).
Each consumer group has a DLQ named `%DLQ%CID`, it's a special topic indeed and doesn't have read permission by default. In most cases, messages should be consumed successfully after 16 times retry. if not, an application error may occurred, and should be resolved~ There is a related queue named `%RETRY%CID`, a special topic to queue the retried messages. Let me know if you have further questions. Regards, yukon On Mon, Dec 18, 2017 at 3:00 PM, Frank Bian <[email protected]> wrote: > Hi guys, > > What is DLQ or DLQ topic ? > > I found that the msg will be queued by DLQ topic when the reconsumeTimes > of it is bigger than maxReconsumeTimes , so the DLQ is special topic for > this case? > > > > Best regards, > Frank Bian > >
