Ravi Sir's Cards › AWS
Poison DLQ
This interview card covers Poison DLQ. One bad record can stall a shard. ReportBatchItemFailures + DLQ + alarm. Inject bad mapping , then land DLQ , then fix template , then replay.
Read card text
What this card says
What it is
One bad record can stall a shard.
Why it matters
ReportBatchItemFailures + DLQ + alarm.
DLQ
How / example
Inject bad mapping → land DLQ → fix template → replay.
MNC resilience.