Examples of Polling
Below are some examples of how polling can be used in system design:
- Database Polling: In a system with a database backend, polling can be used to regularly query the database for new records or changes to existing records. For example, an e-commerce platform might poll the database every few seconds to check for new orders or updates to inventory levels.
- API Polling: Many systems integrate with external APIs to exchange data. Polling can be used to periodically request data from these APIs. For instance, a weather application might poll a weather API every hour to get updated forecasts.
- Monitoring Systems: In systems monitoring, polling is used to continuously check the health and performance of various components. This could involve polling CPU and memory usage, network latency, disk space, etc., on servers or other devices.
- Notification Systems: Polling can be used to check for new notifications or messages. For example, a messaging app might poll the server every few seconds to check for new messages for the user.
- File System Polling: In file processing systems, polling can be used to monitor directories for new files. For instance, a file upload service might periodically check a directory for new files to process.
Polling in System Design
Polling in system design is an important method for gathering data or monitoring device status at regular intervals. This article provides an overview of polling, its importance, applications, strategies, and challenges also.
Important Topics for Polling in System Design
- What is Polling?
- Importance of Polling in System Design
- Polling Mechanisms in System Design
- Use Cases of Polling
- Polling Strategies
- Benefits of Polling
- Challenges of Polling
- Alternatives to Polling
- Examples of Polling
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