HTTP Access Logs: User Session Reconstruction

Problem

Investigate a client-side or server-side issue using HTTP access logs.

But what if the issue is intermittent or occurs only rarely for a specific user?

Solution

Enable access logs on Tomcat, Apache, or another web tier.

Identify the problematic request using markers such as HTTP status code, server think time, response size, or a specific URI, then reconstruct the full user session by session ID.