Capture and Runtime Analysis
Learn when browser captures and runtime snapshots reveal the real bottleneck faster than trial-and-error fixes.
This chapter connects front-end evidence and JVM runtime evidence so learners can diagnose request-path problems, slow dependencies, and concurrency issues with much stronger confidence.
Some incidents only become clear when you inspect the browser-to-backend conversation, or when you capture what a busy process is doing at the exact moment performance degrades. This chapter introduces two practical support topics for those situations: HAR analysis for web traffic and Java thread dump analysis for blocked or slow JVM applications.
Use these topics when timing, redirects, dependency latency, lock contention, or backend wait states are more important than surface-level UI symptoms.
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Understand why AI-enabled systems fail differently and how to troubleshoot prompts, retrieval, tools, quality, latency, and safety.
- Operating Principles and Troubleshooting Mindset
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- HAR File Analysis
Use browser HAR captures to trace redirects, cache behavior, API failures, latency spikes, and blocked assets with far more precision.
- Java Thread Dump Analysis
Use thread dumps to identify slow back-end calls, blocked threads, lock contention, and repeated hot stacks in busy JVM applications.
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- Remote Support and Endpoint Administration
Prepare for distributed support work where diagnosis, evidence gathering, and user guidance happen remotely.
- Security-Aware Troubleshooting
Build troubleshooting habits that solve access issues safely and recognize when a support ticket is actually a security event.