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106 lines
2.5 KiB
Markdown
106 lines
2.5 KiB
Markdown
# Monitor
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The monitor module is used to record and view server performance data, including CPU, memory, disk I/O, and network traffic.
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## Monitor Page
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## Monitor Settings
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### Enable Monitoring
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After turning on the **Enable Monitoring** switch, the system will periodically collect performance data.
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### Retention Days
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Set the retention time for monitoring data, default is 30 days. Data exceeding the retention time will be automatically cleaned up.
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### Clear Monitor Records
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Click the **Clear Monitor Records** button to manually clear all historical monitoring data.
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## Monitoring Metrics
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### Load Average
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System load reflects the busyness of the CPU:
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- **1-minute load**: Average load over the last 1 minute
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- **5-minute load**: Average load over the last 5 minutes
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- **15-minute load**: Average load over the last 15 minutes
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Load value reference:
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- Load < CPU cores: System running smoothly
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- Load = CPU cores: System running at full capacity
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- Load > CPU cores: System overloaded, may experience lag
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### CPU Usage
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Displays CPU usage percentage, including:
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- User mode usage
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- System mode usage
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- Idle rate
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### Memory Usage
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Displays memory usage:
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- Used memory
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- Available memory
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- Cache/Buffer
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### Disk I/O
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Displays disk read/write speed:
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- Read speed (KB/s or MB/s)
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- Write speed (KB/s or MB/s)
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You can select the disk device to monitor.
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### Network Traffic
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Displays network interface traffic:
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- Send speed
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- Receive speed
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You can select the network interface to monitor.
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## Time Range
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Each monitoring chart supports selecting a time range:
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- **Yesterday**: View yesterday's data
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- **Today**: View today's data
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- **Last 7 days**: View data from the last week
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- **Custom**: Select any time range
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## Use Cases
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### Performance Analysis
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Analyze server performance bottlenecks through monitoring data:
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- Sustained high CPU load: Consider optimizing programs or upgrading CPU
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- Insufficient memory: Consider adding memory or optimizing memory usage
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- High disk I/O: Consider using SSD or optimizing database queries
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- Insufficient network bandwidth: Consider upgrading bandwidth
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### Troubleshooting
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When problems occur, view historical monitoring data to locate the time and cause of the problem.
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### Capacity Planning
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Based on historical data trends, predict future resource needs and plan for expansion in advance.
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## Notes
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- Monitoring data will occupy some disk space
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- The longer the retention days, the more space it occupies
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- It is recommended to set appropriate retention days based on actual needs
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