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- Fault Action Library
- Compute
- JVM Process CPU at Full Load
- Cross-AZ Experiment in CVM
- CVM DNS Unavailability Experiment
- CVM Domain Name Parsing Tampering Experiment
- CVM System Time Skew
- CVM Disk IO Hang Fault Experiment
- CVM Memory OOM and Disk IO Load
- Experiments on CVM Intra-host Network Disorder
- CVM Kernel Faults
- Experiments on CVM Intra-host Network Latency
- High Utilization of CVM Resources (CPU, Memory, and Disk)
- Experiments on CVM Intra-host Network Corruption
- Experiments on CVM Intra-host Network Duplication
- Experiments on CVM Intra-host Network Occupation
- CVM Network Interruption
- CVM Ping Unreachable
- Cloud API Ban in CVM
- Database
- Primary-secondary Switch in TencentDB for PostgreSQL
- MySQL Instance Overall Unavailable
- Primary-secondary Switch in MySQL
- Setting Maximum Number of Connections in MySQL
- Primary Node Fault Experiment on TencentDB for MySQL
- TencentDB for MySQL Read-only Instance Group Unavailable
- Primary-secondary Switch in TDSQL for MySQM
- Primary-secondary Switch in MariaDB
- Primary-secondary Switch in TDSQL-C
- Practice of TencentDB for Redis Proxy Node Faults
- TencentDB for Redis Primary Node Fault
- Primary-secondary Nodes in TencentDB for Redis Instance Unavailable
- Simulating Primary-secondary Switch in Redis
- Simulating MongoDB Storage Node Fault
- Simulating Self-Built MySQL Crash Through Network Blocking
- Restarting TencentDB for MySQL
- Primary-secondary Switch in SQL Server
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- Simulating Container Resource Network Faults
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Primary-Secondary Stream Switch
Last updated: 2024-09-26 15:49:18
The primary-secondary stream switch fault scenario can simulate primary-secondary stream switch caused by stream push anomalies. By observing the post-fault behavior, you can verify whether downstream playback is normal after the primary-secondary stream switch and help evaluate the impact duration of primary-secondary switch on downstream playback.
Experiment Preparation
Note:
1. Primary-secondary stream switch will genuinely switch the primary-secondary streams. Please carefully evaluate the impact when conducting experiments in a production environment.
2. The primary-secondary stream switch fault is equivalent to manually operating the primary-secondary stream switch on the CSS console.
3. The primary-secondary stream switching fault requires the primary-secondary streams to have downstream playback, otherwise the switching will fail.
Experiment Steps
Step 1: Create an experiment
1. Log in to Tencent 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 Primary-secondary stream switch 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 the Execution Method for the action, configure Guardrail Policy, and set up 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.
Pre-check items for the primary-secondary stream switch:
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
1. After performing primary-secondary stream switch, enter CSS Console > Stream Management, and click Primary-secondary Stream to observe the current status of the primary-secondary streams.
2. In CSS Console > Business Monitoring > Exception Events, click Primary-secondary Stream Events to view Proactive Switchover abnormal events.
3. After switching, you can simultaneously observe the changes in downstream playback, which typically switches within 1 to 3 seconds.
4. You can view the impact on Live Playback, User distribution, Top playbacks, and Origin Server via CSS > Business Monitoring > Operational Analysis. For details, see Operation Analysis.
Step 4: Fault Recovery
In the CFG platform, click Recover Action to switch back the primary-secondary streams. After successful execution, check if the items observed in Step 3 have been recovered.
Yes
No
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