You push a dashboard refresh, the data lags, and your alerts take minutes to arrive. Somewhere between AWS SQS, SNS, and Looker, a message is drifting in the void. This is the moment every engineer starts muttering about queue depth and webhook retries. AWS SQS/SNS Looker should just work, but too often the wiring is half understood.
AWS SQS is your reliable message queue. SNS is your broadcast system that fans out notifications to subscribers. Looker is your data visualization layer waiting for fresh facts. Together, they create a powerful pipeline from your event stream to your decision engine. When tuned right, a new transaction in SQS triggers SNS to notify Looker to pull updated data from your warehouse. It feels like magic when it flows cleanly.
The tricky part is identity and timing. AWS resources speak IAM, while Looker expects a secure external connection. The key is to let SNS publish messages that carry metadata Looker can trust, without granting it broad AWS access. You accomplish this by binding SQS queues to SNS topics with precise permissions, then letting Looker poll or receive messages through a verified webhook endpoint. Think of this as your controlled handshake across clouds.
To set this up, keep the architecture simple. Use one SNS topic per domain of alerts, subscribe one SQS queue per downstream service, and give each queue minimal permissions through IAM. Configure Looker’s webhook endpoint as an SQS listener or a Lambda consumer that translates payloads into Looker API calls. This way, SNS blasts updates, SQS buffers them safely, and Looker only touches the data it should.
If your notifications vanish or duplicate, check message deduplication IDs and retention periods. Set a retry policy on SNS to avoid flooding Looker with old updates. Rotate secrets often, and audit IAM roles with policies like least privilege and OIDC identity federation. SOC 2 audits love that story.