(Archived) SQS
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Standard queues
Standard queues support a nearly unlimited number of API calls per second, per API action (SendMessage, ReceiveMessage, or DeleteMessage). Standard queues support at-least-once message delivery. However, occasionally (because of the highly distributed architecture that allows nearly unlimited throughput), more than one copy of a message might be delivered out of order. Standard queues provide best-effort ordering which ensures that messages are generally delivered in the same order as they're sent.
Message ordering
A standard queue makes a best effort to preserve the order of messages, but more than one copy of a message might be delivered out of order.
At-least-once delivery
Amazon SQS stores copies of your messages on multiple servers for redundancy and high availability. On rare occasions, one of the servers that stores a copy of a message might be unavailable when you receive or delete a message.
If this occurs, the copy of the message isn't deleted on that unavailable server, and you might get that message copy again when you receive messages. Design your applications to be idempotent (they should not be affected adversely when processing the same message more than once).
FIFO queues
FIFO queues have all the capabilities of the standard queue. FIFO (First-In-First-Out) queues are designed to enhance messaging between applications when the order of operations and events is critical, or where duplicates can't be tolerated.
Message ordering
The order in which messages are sent and received is strictly preserved and a message is delivered once and remains available until a consumer processes and deletes it. Duplicates aren't introduced into the queue.
Exactly-once processing
FIFO queues don't introduce duplicate messages. If you retry the SendMessage action within the 5-minute deduplication interval, Amazon SQS doesn't introduce any duplicates into the queue.
Authentification
Both types of queues are provided with authentication. A distinction is made between two types:
Username / Password
Instance Profile Only AWS CLI / AWS SDK commands are allowed for using a queue
Requesting SQS
If you want to request SQS, you can do so by sending an E-Mail to service@root360.de or creating a ticket in the ticket system.
Required information
Required Information | Explanation | Options |
|---|---|---|
Name of Queue | Queues have to follow our naming pattern "<company>-<project>-<env>-<suffix>" with a maximum length of 80 characters (alphanumeric characters, hyphens, or underscores) | Select a name matching our naming pattern (for fifo queue add ".fifo") |
Fifo queue or standard queue | We can setup standard and fifo queues. | Standard queue, Fifo queue (default: Standard queue) |
Maximum message size | Maximal size of a single message. | min 1 Byte, max 262 144 Bytes (default: 262 144 Bytes) |
Message retention period | Amount of time that a message is stored in SQS. Older messages are deleted automatically. | min 1 day, max 4 days (default: 1 day) |
Receive message wait time | The receive message wait time is the maximum amount of time that polling will wait for messages to become available to receive | min 0 seconds, max 20 seconds (default: 0 seconds) |
Visibility timeout | Visibility timeout sets the length of time that a message received from a queue (by one consumer) will not be visible to the other message consumers | min 0 seconds, max 12 hours (default: 30 seconds) |
Delivery delay | The delivery delay is the amount of time to delay the first delivery of each message added to the queue. Any messages that you send to the queue remain invisible to consumers for the duration of the delay period. | min 0 seconds, max 15 minutes (default: 0 seconds) |
User access | In case you have/request multiple queues, we can either create one dedicated user per queue or grant access to multiple (please provide names of all queues/users) queues to one user. | Dedicated user per queue, master user for multiple queues |
Pricing
For detailed AWS pricing see https://aws.amazon.com/sqs/pricing/?nc1=h_ls
For Root360 Managed Service costs please contact our Service team.
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