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Apache Kafka Vs. RabbitMQ

What is RabbitMQ?

RabbitMQ is the most widely used, general-purpose, and open-source message broker. It was released in the year 2007 and was a primary component in messaging systems. Currently, it is used for streaming use cases. RabbitMQ was able to handle the background tasks or act as a message broker between microservices. It helped the web applications in reducing the loads. Also, it reduced the delivery time of the servers for those tasks or resources which were time-consuming.

What is Apache Kafka?

Apache Kafka is also an open-source distributed pub/sub message system. It was released in the year 2011 which works as middle storage between two applications. The producer writes and stores the message in the Kafka cluster. On the other hand, the consumer consumes messages from the cluster. It also reduces the slow delivery of heavy messages.

Kafka Vs. RabbitMQ

Apache Kafka vs RabbitMQ

Parameters Apache Kafka RabbitMQ
Distribution Kafka consumers get distributed through topic partitions. Each consumer consumes messages from a specific partition at a time. There are a number of consumers present for each queue instance. These consumers are known as Competitive consumers as they compete with one another for consuming the message. But, the message can be processed just once.
High Availability With the help of zookeeper, it manages the state of the Kafka cluster and supports high availability. Through clustering and high available queues provides high-performance data replication. Thus, it also provides high availability.
Performance It can process millions of messages in a second with less number of the hardware. It can also process millions of messages within a second, but it needs more number of the hardware.
Replication There are replicated brokers available in Kafka, which works when the master broker is down. Here, queues are not automatically replicated. The configuration is mandatory.
Multi subscriber Multiple consumer types can subscribe to many messages to Kafka. Although messages are routed to various queues, only one consumer from a queue can process the message.
Message Protocols Apache Kafka supports primitives such as int8, int16, etc. and binary messages. This supports any standard queue protocols such as STOMP, AMQP, HTTP, etc.
Message Ordering Message ordering is present inside the partition only. It guarantees that either all fail or pass together. It maintains the order for flows via a single AMQP channel. In addition, it also reorders the retransmitted packets inside its queue logic that will prevent the consumer from resequencing the buffers.
Message lifetime It contains a log file that prevents all messages anytime. Since it is a queue, messages once consumed are removed, and the acknowledgment is received.
Architecture Highly scalable pub/sub distributed messaging system. It has brokers, topics, partitions, and topics within the Kafka cluster. A general-purpose pub/sub message broker. Its architecture varies from Kafka as it consists of queues.
Use Cases It is mainly used for streaming the data. The web servers mainly use it for immediate response to the requests.
Transactions It supports those transactions that exhibit a ?read-process-write? pattern performed to/from Kafka topics. It does not guarantee atomicity even when the transaction indulges only a single queue.
Language Apache Kafka is written in Scala with JVM. RabbitMQ is written in Erlang.
Routing Support It supports complex routing scenarios. It does not support complex routing scenarios.
Developer Experience With high growth, it led to a good experience. But, it only supports Java clients. RabbitMQ carries mature client libraries that support Java, PHP, Python, Ruby, and many more.

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