# Documents

- [Plugin Developer Guide](/pinpoint/v2.3.2/documents/plugin-dev-guide.md)
- [Setting Alarm](/pinpoint/v2.3.2/documents/alarm.md)
- [How to use Application Inspector](/pinpoint/v2.3.2/documents/application-inspector.md)
- [Separate Logging Per Request](/pinpoint/v2.3.2/documents/per-request_feature_guide.md)
- [Marking Transaction as Fail](/pinpoint/v2.3.2/documents/http-status-code-failure.md)
- [Monitoring Proxy Server](/pinpoint/v2.3.2/documents/proxy-http-header.md)
- [Upgrade Database Hbase2](/pinpoint/v2.3.2/documents/hbase-upgrade.md)