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- Product Overview
- Purchase Guide
- Quick Start
- Operation Guide
- 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
- Network
- Container
- Simulating Container Resource Network Faults
- Experiment on Container Resource Pod Operation Faults
- Experiment on Container Resource Node Faults
- Experiment on Container Resource Application Process Faults
- Standard Cluster and Serverless Cluster Super Node Faults
- Serverless Pod Fault Experiment Case
- Cluster Node Resource (CPU, Memory, Disk) Stress Test Faults
- Serverless Pod Virtual Node Shutdown Faults
- Simulating Serverless Cluster Pod Network Faults
- High Cluster Pod Resource (CPU, Memory, and Disk) Utilization Rate
- Cluster Pod TencentCloud API Ban
- Big Data
- Cloud Load Balancer
- Message Queue
- Direct Connect
- Custom Actions
- Cloud Streaming Services (CSS)
- Compute
- Permission Management Guide
- API Documentation
- FAQs
- Related Protocol
- Contact Us
Expanding Fault Injection Actions with Custom Scripts
Last updated: 2024-09-26 15:49:18
To meet users' personalized fault action needs, CFG has developed custom actions. You can package fault scripts as a fault action for experiment orchestration. During experiment execution, custom actions are distributed to the selected CVM for execution. Additionally, custom actions support dynamic parameter configuration and action resource sharing under the root account, allowing for creation once and multiple uses. Below is an introduction about how to use custom actions with custom scripts to kill the specified process.
During the operation of the business, processes may terminate due to various unexpected situations. To verify whether the service can automatically restart, you can use a custom script to simulate this scenario by killing the process.
Directions
Step 1: Create an action
Log in to Tencent Smart Advisor > Chaotic Fault Generator, select Action Library Management, and click Create Custom Action.
Step 2: Fill in action basic information
1. Fill in the basic information for the custom action:
Note:
Custom actions support two command types:
Shell: means Linux script commands.
Powershell: means Windows script commands.
Command content supports dynamic parameter replacement. Use {{}} to enclose parameters that need to be dynamically replaced in the script, then click Use Parameters to automatically extract dynamic parameters.
ps -ef | grep -w {{process_name}} | grep -v grep | awk '{print $2;}' | xargs kill -9
2. Click Save to see the newly created custom action in the action list. If you have more granular permission management needs, you can specify tags during creation so that only sub-users under the same tag can share the custom action.
Step 3: Create an experiment
1. Enter the Experiment Management page and click Create a New Experiment.
2. Custom actions can participate in experiment orchestration. During experiment creation, click Skip and create a blank experiment, then fill in the experiment details and add experiment Instances.
3. Click Add Now, and select the experiment action to add.
4. After selecting the relevant custom action, click Next.
5. Set dynamic parameters. If not set, default values for creation will be used.
Custom actions will be distributed to the corresponding CVM instances. If multiple instances are chosen, the script can be distributed for batch parallel execution.
Step 4: Execute the experiment
After completing experiment orchestration, click Execute Experiment. If the action is executed successfully (Return code 0 indicates success.), you can log in to the server for verification.
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