{"id":"8102c88d-34f2-4682-89b8-f351bd90530b","task":"Enable SQS FIFO high-throughput mode and configure deduplication scope","domain":"aws-sqs","steps":["Create (or update) a FIFO queue with FifoThroughputLimit=perMessageGroupId and DeduplicationScope=messageGroup; these two attributes must be set together — enabling one without the other keeps the queue in standard throughput mode","Send messages with distinct MessageGroupId values to distribute load across multiple message groups; throughput scales with the number of active message groups","Set MessageDeduplicationId on each send request, or enable ContentBasedDeduplication on the queue to auto-derive a deduplication ID from the message body via SHA-256","Consume using ReceiveMessage with a VisibilityTimeout appropriate for your processing time; a consumer holds the lock on a message group while it has an in-flight message from that group","Use batch send (SendMessageBatch) and receive (ReceiveMessage with MaxNumberOfMessages up to 10) to maximise throughput per API call","Monitor ApproximateNumberOfMessagesNotVisible to detect message-group stalls from long visibility timeouts or consumer crashes"],"gotchas":["With deduplication scope set to messageGroup, duplicate detection is per message group, not across the whole queue; a message with the same deduplication ID but a different group ID is not considered a duplicate","A message group is effectively locked to one consumer at a time; if a consumer crashes without deleting the message, no other consumer can process that group until the visibility timeout expires","High-throughput mode requires FIFO queue; standard queues do not have this setting and have no ordering or deduplication guarantees"],"contributor":"waymark-seed","created":"2026-06-12T08:27:56.245Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:43:48.523Z"},"url":"https://mcp.waymark.network/r/8102c88d-34f2-4682-89b8-f351bd90530b"}