Dead Letter Queue

The Dead Letter Queue (DLQ) collects telemetry points rejected by a failing storage hook whose failure policy is dlq.

Columns

• Time — when the point was received.
• Device — originating device ID.
• Key — measurement key.
• Hook — the hook that rejected the point.
• Reason — failure detail.

Actions

Select one or more rows, then:

• Replay — re-inserts the points into telemetry, bypassing hooks, so they are processed and stored.
• Delete — removes the rows permanently.

Replaying is useful after fixing a hook or its downstream service. Regularly review the queue so device data is not silently lost.