Explain the features of Amazon Simple Queue Service

In this recipe, we will learn about Amazon Simple Queue Service We will also learn about the features of Amazon Simple Queue Service.

Recipe Objective - Explain the features of Amazon Simple Queue Service?

The Amazon Simple Queue Service or Amazon SQS is widely used and is defined as the distributed message queuing service which was introduced by Amazon as a beta in late 2004, and available in mid-2006. Amazon Simple Queue Service(SQS) supports the programmatic sending of messages via web service applications as a way to communicate over the Internet. Amazon SQS is intended to provide the highly scalable hosted message queue which resolves the issues arising from the common producer-consumer problem or connectivity between the producer and consumer. Amazon Simple Queue Service(SQS) is also described as the commoditization of the messaging service so, examples of messaging service technologies include the IBM WebSphere MQ and Microsoft Message Queuing. Also, Users do not need to maintain their own server, So Amazon does it for users and sells the SQS service at the per-use rate. Also, Amazon SQS is also defined as a fully managed message queuing service which enables users to decouple and scale microservices, distributed systems, and the serverless applications. SQS eliminates the complexity and overhead associated with the managing and operating message-oriented middleware and further empowers developers to focus on the differentiating work. Using SQS, users can send, store, and receive messages between the software components at any volume, without losing messages or requiring other services to be available. Amazon SQS also offers two types of message queues. The Standard queues offer the maximum throughput, best-effort ordering, and at least-once delivery. Also, Amazon SQS FIFO queues are designed to further guarantee that messages are processed exactly once, in the exact order that they are sent.

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Benefits of Amazon Simple Queue Service

  • The Amazon Simple Queue Service(SQS) helps in transmitting any volume of data, at any level of throughput without losing the messages or requiring other services to be available. Also, Amazon SQS lets users to decouple application components so that they run and fail independently, increasing the overall fault tolerance of the system. Also, Multiple copies of every message are stored redundantly across multiple Availability Zones so that they are available and it reliably delivers messages. Amazon Simple Queue Service(SQS) leverages AWS which dynamically scale based on the demand. Amazon SQS scales elastically with the user's application so users don’t have to worry about the capacity planning and pre-provisioning and there is no limit to the number of messages per queue, and standard queues provide nearly unlimited throughput. So, Costs are based on usage, which provides significant cost saving versus the “always-on” model of the self-managed messaging middleware and thus it scales elastically and is cost-effective. Amazon SQS provides no upfront cost, no need to acquire, install, and further configure messaging software, and no time-consuming build-out and maintenance of the supporting infrastructure. Amazon SQS queues are dynamically created and scale automatically so users can build and grow the applications quickly and efficiently and thus it eliminates administrative overhead. Amazon SQS exchanges sensitive data between the applications using server-side encryption (SSE) to encrypt each message body. Also, Amazon SQS SSE integration with Amazon Web Services Key Management Service (KMS) allows users to centrally manage the keys which protect SQS messages along with the keys which protect users' other AWS resources. AWS KMS logs every use of their encryption keys to AWS CloudTrail to help meet their regulatory and compliance needs and thus it keeps sensitive data secure.

System Requirements

  • Any Operating System(Mac, Windows, Linux)

This recipe explains Amazon Simple Queue Service and Features of Amazon Queue Email Service.

Features of Amazon Queue Email Service

    • It provides Standard Queue

Amazon Simple Queue Service(SQS) provides Standard Queue which supports nearly an unlimited number of transactions per second (TPS) per API action. It also supports at-least-once Delivery that is when a message is delivered at least once, but occasionally more than one copy of the message is delivered. It offers best-Effort Ordering that is occasionally, messages might be delivered in an order different from which they were further sent.

    • It provides FIFO Queues

Amazon Simple Queue Service(SQS) provides FIFO Queues which supports high throughput that is FIFO queues support up to 300 messages per second (300 send, receive, or the delete operations per second). It offers exactly-Once Processing that is a message is delivered once and further remains available until the consumer processes and deletes it. Also, duplicates aren't introduced into the queue. It offers First-In-First-Out Delivery which is the order in which messages are being sent and received is strictly preserved (i.e. First-In-First-Out).

    • It provides Unlimited queues and messages and Long polling

Using Amazon Simple Queue Service(SQS), users can use Amazon SQS to create unlimited Amazon SQS queues with an unlimited number of messages in any Region. Also, Amazon SQS provides Long Polling which reduces extraneous polling to minimize cost while receiving new messages as quickly as possible. Also, when the queue is empty, long-poll requests wait up to 20 seconds for the next message to arrive. So, long poll requests cost the same amount as regular requests.

    • It provides Message locking and Queue Sharing

Using Amazon Simple Queue Service(SQS), users can use Amazon SQS for message locking which is when a message is received, it becomes “locked” while being processed. So, this keeps other computers from processing the message simultaneously and if the message processing fails, the lock will expire and the message will be available again. Amazon SQS offers Queue sharing that is it securely share Amazon SQS queues anonymously or with specific AWS accounts. So, Queue sharing can also be restricted by IP address and time of day.

    • It provides Server-side encryption and Dead Letter Queues

Using Amazon Simple Queue Service(SQS), users can use Amazon SQS which provides Server-side encryption which protects the contents of messages in the Amazon SQS queues using keys managed in the AWS Key Management Service (AWS KMS). SSE in AMazon SQS encrypts the messages as soon as Amazon SQS receives them. The messages are stored in the encrypted form and Amazon SQS decrypts messages only when they are sent to the authorized consumer. Amazon SQS also provides Dead letter Queues which handles messages that a consumer has not successfully processed with dead-letter queues (DLLs). Also, when a message's maximum receive count is exceeded, Amazon SQS moves the message to Dead Letter Queue associated with the original queue. DLQs in Amazon SQS must be of the same type as the source queue (standard or FIFO).

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