pubsub/WARN/2023_002
BigQuery subscription should have a dead-letter topic attached.
Product: Cloud Pub/Sub
Rule class: WARN - Something that is possibly wrong
Description
A BigQuery subscription could be configured to forward undeliverable/failed messages to a special dead-letter topic for further analysis/handling.
Remediation
When a Pub/Sub message cannot be written to BigQuery, the message cannot be acknowledged. To forward such undeliverable messages, configure a dead-letter topic on the BigQuery subscription.