We often come with requirements which are suited for integrating Messaging Frameworks in the Software Systems.
There are many messaging frameworks available in the market – some are open-source, some are paid-licensed, some provide great support, have good Community support.
In order to make an apt choice, we look out and explore different messaging frameworks based on our requirements.
This post compares few Popular Messaging Frameworks and aims to provide or equip you with enough information to make a decision on choosing the best framework as per your requirements.
|RabbitMQ||Apache Kafka||AWS SQS|
|HA||☑ Requires some extra work and may require 3rd party Plugins like Shovel and Federation||☑ Out of the Box (OOB)||☑ OOB|
|Guaranteed Delivery||☑ Supports Consumer Acknowledgments||☑ Supports Consumer Acknowledgments||☑ Supports Consumer Acknowledgments|
|Durable||☑ Through Disk Nodes and Queues with extra configuration||☑ OOB||☑ Message Retention upto 14 days max and default being 4 days.|
|Exactly-Once Delivery||☑ Annotates a message with redelivered when message was delivered earlier but consumer ack failed earlier. Requires Idempotent behavior of a Consumer||☑ Dependent on Consumer behavior. Consumer is made responsible to track Offsets (messages read so far) and store those offsets. Kafka started supporting storing offsets within Kafka itself. It supports storing Offsets OOB through HIGH LEVEL CONSUMERS, however Requires Idempotent behavior of a Consumer||☑ MessageDeDup ID and MessageGroupID attributes are used. Requires Idempotent behavior of a Consumer. FIFO supports Exactly-once while Standard Queues support Atleast-Once|
|Ease of Deployment||☑ For Distributed Topology, Requires more effort and 3rd party Plugins||☑ Requires ZooKeeper||☑ Managed by AWS|
|Authentication Support||☑ OOB||☑ OOB||☑ OOB|
|Authorization aka Acl Support||☑ OOB||☑ OOB||☑ OOB|
|TLS Support||☑ OOB||☑ OOB||☑ OOB|
|Non-Bocking Producers||☑||☑ Supports both Synchronous and Async|
|Performant||⭐ ⭐ Medium to High||⭐ ⭐ ⭐ ⭐ Very High||⭐ ⭐ ⭐ ⭐ Very High FIFO: 300 tps Standard Queues: Unlimited|
|Load Balancing Across Consumers||☑||☑ Can be done Through Consumer Groups||☑ Multiple Consumers can read from the same queue in an atomic way|
|Delay Queues||NOT OOB||NOT OOB||☑ OOB|
|Visibility Timeout Queues||NOT OOB||NOT OOB||☑ OOB|
|Message Size Limits||Upto 256 KB. AWS SDK supports storing large messages in S3 etc though.|
|No of Messages in a Queue||☑ No limits||☑ No Limits||☑ No Limits but Standard Queues: 1,20,000 In-Flight Messages FIFO: 20,000 In-Flight Messages Details here and here Messages are In-Flight after they have been received from the queue by a consuming component, but have not yet been deleted from the queue|
|Message Content Limits||☑ No Limits||☑ No Limits||A message can include only XML, JSON, and unformatted text. The following Unicode characters are allowed:
|Disaster Recovery||Not OOB||Not OOB but simple. Replicas can be deployed across regions||Not OOB and simple. Requires different Strategies to achieve it.|