Modules of the Streaming component

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The Huawei Streaming service consists of Nimbus, UI, Supervisor, and Logviewer modules.

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Data contained in the Streaming component
Nimbus contains the metadata of Streaming. Supervisor contains the computing data of Streaming.

Enhanced features of the Streaming component
The use of continuous query language (CQL) accelerates service development, enables tasks to be easily submitted to the Streaming platform for real-time processing, facilitates output of results, and allows tasks to be terminated at the appropriate time. Additionally, access control is implemented based on user types. As a result, only the user who creates the topology can view and manage the topology, preventing unauthorized operations. The Nimbus HA mechanism enhances cluster availability.

What are the enhanced features of the Streaming component?
The use of continuous query language (CQL) accelerates service development, enables tasks to be easily submitted to the Streaming platform for real-time processing, facilitates output of results, and allows tasks to be terminated at the appropriate time. Additionally, access control is implemented based on user types. As a result, only the user who creates the topology can view and manage the topology, preventing unauthorized operations. The Nimbus HA mechanism enhances cluster availability.

What components does FusionInsight Stream comprise?
FusionInsight Stream contains the Streaming, Kafka, Redis, DBService, and ZooKeeper services. If the security version is deployed, the Kerberos and LDAP services are also included.

Working principle of Streaming modules
A Streaming topology can be developed and compressed into a JAR file by using Storm APIs or referring to the CQL syntax manual. After the topology is submitted to the Streaming cluster, Nimbus automatically assigns it to the Supervisor node for processing. The topology logs can be viewed on the UI through the port provided by Logviewer.

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