Cloud Stream Service

Cloud Stream Service (CS) is a real-time big data stream analysis service running on HUAWEI CLOUD. Compatible with Apache Flink APIs, CS also fully hosts computing clusters, allowing you to focus on StreamSQL services and run jobs in real time.

Pay per use, SPU unit price ¥0.50/hour

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Product Advantages
  • Easy to Use

    You can edit StreamSQL statements to define the data input, output, and processing. Business logics are implemented quickly, facilitating streaming data analysis.

  • Fully Hosted

    You can check visualized information on running jobs without the need for cluster O&M.

  • Pay per Use

    The service is priced based on the used SPU resources (1 SPU = 1 core + 4 GB memory) and the service duration (by second).

  • High Throughput, Low Latency

    The Dataflow model of Apache Flink is leveraged to achieve a real-time computing framework.

Application Scenarios
  • Real-time Stream Analysis

  • IoT

Real-time Stream Analysis

Real-time Stream Analysis

Real-time stream analysis features ease of use, low latency, and high throughput. It can be achieved based on StreamSQL and user-defined jobs.


Easy to Use

Supports online StreamSQL statement editing and provides abundant SQL functions to meet complex service requirements.

Fully Hosted

Computing clusters are fully hosted by CS, enabling you to focus on stream analysis.

Pay per Use

SPU resources specified during job creation are charged by duration (by second).

Related Services





IoT or edge devices upload data to DIS. CS reads data from DIS, analyzes data (including fault detection and counter warning), and makes the analysis result persistent or reports alarms in real time.


Abundant IoT SQL Functions

Provides common IoT functions such as area, yaw, and distance detection functions.

High Throughput, Low Latency

Leverages Apache Flink to achieve a complete real-time computing framework.

Secure Isolation

Isolates tenants from each other to ensure data security.

Related Services




  • StreamSQL Functions

    Aggregate functions, such as window and join, are supported, and SQL is used to express business logics.

  • High Throughput, Low Latency

    CS supports the backpressure mechanism, high throughput, and millisecond-level latency.

StreamSQL Functions

High Throughput, Low Latency

  • Rock-solid Security

    Security protection mechanisms for tenants ensure operation security.

  • Distributed Real-time Computing

    Large-scale cluster computing and cluster auto scaling significantly reduce the cost.

Rock-solid Security

Distributed Real-time Computing

Usage Guides

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