Troubleshooting "No Data Available" in Apache Server Monitoring
If you’re not seeing certain metrics in Apache server monitor, it may be due to one or more of the following reasons. Here's a step-by-step guide for resolving the issue:
1. Extended Status Metrics
- Some metrics are only available when Extended Status is enabled. These include: Requests per second, Bytes per second and Bytes per request.
- If Extended Status is turned OFF, you won’t be able to monitor these metrics.
- For detailed instructions on enabling Extended Status, refer to the full guide here.
Starting from version 2.3.6, enabling normal-status automatically enables Extended Status by default.
2. Apache Version
- Certain metrics are only available in the latest versions of Apache. If you're using an older version, you may not be able to access them.
3. Dependency Metrics : Some metrics are dependent on specific conditions:
- Load Average: This metric is available only on Linux-based servers.
- Connection Metrics: Total Connections and Asynchronous Connections stats are available only if Apache is using the Event MPM (Multi-Processing Module).
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