AWS SQS & SNS Support
AWS SQS & SNS support, troubleshooting and optimization.
Queues and topics decouple systems, but visibility timeouts, poison messages and missing permissions can quietly stop processing.
Common SQS & SNS problems we fix
The Amazon SQS and SNS issues our engineers see most often, and how we resolve them.
SQS messages stuck or processed multiple times
If processing takes longer than the visibility timeout, the message becomes visible again and runs twice. We tune the timeout, make consumers idempotent and use heartbeat extension for long jobs.
SQS dead-letter queue filling up
Poison messages fail repeatedly and move to the DLQ after maxReceiveCount. We inspect failures, fix the consumer and redrive messages safely.
SQS queue growing and consumers falling behind
Slow consumers, low concurrency or downstream bottlenecks cause backlog. We scale consumers on queue depth and age, and fix the slow dependency.
SNS messages not delivered
Subscription filter policies, missing queue or Lambda permissions, and unconfirmed subscriptions are frequent. We check delivery logs and policies.
FIFO queue throughput limits
FIFO ordering requires message group design. We structure group IDs for parallelism and use high-throughput mode where needed.
How We Help With SQS & SNS
Senior AWS engineers who explain what they change and why.
What we do
- Messaging architecture and fan-out
- DLQ, retry and idempotency design
- Autoscaling consumers
- Encryption and access policies
How it works
- Tell us what is wrong or what you want to improve
- We review with read-only access first
- We fix, explain and document the change
- We hand off with monitoring so it stays fixed
Specialized SQS & SNS support
Deep-dive help for specific SQS & SNS tasks.
SQS dead-letter queues and redriveSet up and monitor AWS SQS dead-letter queues and redrive messages safely. TwinTix configures maxReceiveCount, retention, alarms and replay after fixing the bug.
SQS visibility timeout and duplicate messagesFix duplicate SQS message processing. TwinTix sets visibility timeout from consumer duration, adds idempotency and handles long-running jobs correctly.
SNS to SQS fan-out and subscription filter policiesBuild and debug AWS SNS to SQS fan-out. TwinTix fixes queue policies, filter policies, raw delivery and failed deliveries with DLQs and delivery logs.
Tuning Lambda SQS event source mappingsTune AWS Lambda SQS triggers: batch size, batching window, partial batch responses and maximum concurrency. TwinTix stops poison messages and throttling.
SQS FIFO throughput, message groups and orderingDesign AWS SQS FIFO queues for throughput and ordering. TwinTix chooses message group IDs, deduplication, high throughput mode and handles blocked groups.
Frequently Asked Questions
SQS or SNS?
SQS is a queue where one consumer processes each message. SNS is pub/sub fan-out to many subscribers. They are often combined, with SNS topics feeding SQS queues.
Why am I getting duplicate SQS messages?
Standard queues deliver at least once, and a short visibility timeout causes reprocessing. Design consumers to be idempotent.
How do I reprocess dead-letter messages?
Fix the cause, then use the DLQ redrive feature to move messages back to the source queue.
Need Help With Amazon SQS and SNS?
Schedule an appointment. Describe the problem and we will tell you the fastest safe way to fix it.
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