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LLM Apps in Production (RAG + Vector DB + Caching) · Lesson

Session Management and Context Persistence

Learn to maintain conversation state and user context across multiple interactions for a seamless LLM experience.

Why LLMs Need Memory

Imagine talking to someone who forgets everything you said a moment ago. That's often how Large Language Models (LLMs) work by default!

For a truly natural and helpful experience, LLM applications need to remember past interactions. This is where session management and context persistence come in.

LLMs: Stateless by Design

When you send a prompt to an LLM API, it processes that single request independently. It doesn't inherently 'remember' any previous prompts or responses.

  • Each API call is a fresh start.
  • This stateless nature is efficient for simple, one-off questions.
  • But it breaks down for conversations or personalized tasks.

All lessons in this course

  1. Distributed Caching with Redis/Memcached
  2. Session Management and Context Persistence
  3. Advanced Cache Invalidation Strategies
  4. Semantic Caching for LLM Responses
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