The stream push disabled scenario can verify scenarios where an online stream is blocked due to violations or other reasons. By observing the fault performance, you can verify whether downstream playback can be properly disconnected after the online stream is disabled. If you have configured Stream slate, you can also verify whether the CSS can switch to the slate after the stream is banned. Experiment Preparation
Note:
1. Stream push disabled will realistically disable CSS stream push. Please carefully evaluate the impact when conducting experiments in a production environment.
2. Stream push disabled is equivalent to manually disabling the online stream on the CSS console.
Experiment Steps
Step 1: Create an experiment
1. Log in to Tencent Cloud Smart Advisor > Chaotic Fault Generator, and follow the steps in Quick Start Guide to create an experiment. In the action group configuration, select Audio and Video for Instance Type, and CSS (Stream Push Domain Name) for Instance Object. Click Add Instance to add the push domain name corresponding to the experiment stream. 2. After adding the domain name, click Experiment Actions and then Add Now to add the experiment action. Select the Stream push disabled fault action and configure the action parameters, where the StreamName field is the stream you will inject the fault into (supporting up to 20 different streams for concurrent operations).
3. After confirmation, click Next to enter the Global Configuration page, select Execution Method for the action, and configure Guardrail Policy and Monitoring Metrics .
Note:
Fault actions for CSS (stream push domain name) do not currently support configuring monitoring metrics.
4. Click Submit when it is completed, then click Experiment Details. The system will automatically pre-check the resources you added to determine if they meet the experiment execution conditions (Pre-check does not execute the experiment actions).
Stream push disabled will perform the following verification. Ensure the environment passes the pre-check before starting the experiment, or it may fail. After issues are fixed, you can click Double-Check to initiate the pre-check again.
Check whether the selected domain name is enabled and is a stream push domain name.
Confirm whether the specified stream is an online stream.
Step 2: Execute the experiment
Click Execute on the action to start executing the fault action.
Step 3: Observe results
2. On the Disabled Streams page, you can see the disabled online streams.
3. The downstream playback will be interrupted immediately. If you have configured a stream slate, the CSS screen will immediately switch to the stream slate.
Step 4: Fault recovery
In the CFG platform, click Recover Action to cancel the disablement. After successful execution, check if the items observed in Step 3 have been recovered.
Note:
You may need to restart stream push to recover the online stream.