Relationships Between Kafka and Other Components
As a message publishing and subscription system, Kafka provides high-speed data transmission methods for data transmission between different subsystems of the FusionInsight platform.
It can receive external messages in a real-time manner and provides the messages to the online and offline services for processing.
The following figure shows the relationship between Kafka and other components.
![](https://support.huaweicloud.com/eu/productdesc-mrs/en-us_image_0274613772.png)
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