# Documents

- [Plugin Developer Guide](https://pinpoint-apm.gitbook.io/pinpoint/v2.5.0/documents/plugin-dev-guide.md)
- [Setting Alarm](https://pinpoint-apm.gitbook.io/pinpoint/v2.5.0/documents/alarm.md)
- [System Metric](https://pinpoint-apm.gitbook.io/pinpoint/v2.5.0/documents/system_metric.md)
- [URI Statistics](https://pinpoint-apm.gitbook.io/pinpoint/v2.5.0/documents/uri_statistics.md)
- [How to use Application Inspector](https://pinpoint-apm.gitbook.io/pinpoint/v2.5.0/documents/application-inspector.md)
- [Separate Logging Per Request](https://pinpoint-apm.gitbook.io/pinpoint/v2.5.0/documents/per-request_feature_guide.md)
- [Marking Transaction as Fail](https://pinpoint-apm.gitbook.io/pinpoint/v2.5.0/documents/http-status-code-failure.md)
- [Monitoring Proxy Server](https://pinpoint-apm.gitbook.io/pinpoint/v2.5.0/documents/proxy-http-header.md)
- [Upgrade Database Hbase2](https://pinpoint-apm.gitbook.io/pinpoint/v2.5.0/documents/hbase-upgrade.md)