Comment by awesome_dude

I think that you're right to mention that if the DLQ is over used that that potentially cripples the whole event broker, but I don't think that having a second system that could fall over for the same reason AND a host of other reasons is a good plan. FTR I think doubling kafka provisioned capacity is simpler, easier, cheaper, and more reliable approach.

BUT, you are 100% right to point to what i think is the proper solution, and that is to treat the DLQ with some respect, not a bit bucket where things get dumped because the wind isn't blowing in the right direction.