# Diagnostics

> Gathering the data a support investigation needs — log files, thread dumps, and HAR files — and where each one comes from.

URL: https://www.hannonhill.com/cascadecms/latest/articles/cascade-administration/diagnostics/index.html
category: Cascade Administration
article-type: concept
content-kind: article
release-availability: all
tags: errors, installation
updated: 2026-10-06

When something goes wrong in Cascade CMS, the fix usually starts with data from the running system. These articles cover how to collect each kind, whether you're investigating yourself or gathering what our support team asked for.

## Related

- [How do I enable DEBUG logging?](https://www.hannonhill.com/cascadecms/latest/articles/cascade-administration/administration-tools/enable-debug-logging.html) — add detail to the logs before reproducing a problem.
- [How can I enable request logging?](https://www.hannonhill.com/cascadecms/latest/articles/cascade-administration/administration-tools/enable-request-logging.html) — record every request Tomcat serves.
- [Logs and System Information](https://www.hannonhill.com/cascadecms/latest/articles/cascade-administration/administration-tools/logs-and-system-information.html) — the Administration area tool itself.

## Environment lookups