Is Chatflow load at first conversation?

[kientv]

I see that first question is very slow:

• 7s to init retriever
• and more time to finish RAG chain.
  Sometimes its not reply at first question after an idle period.

I'm using:

• Version: 1.4.5
• Chroma or Qdrant
• buffer memory
• Cache LLM
• Cache embedding

How to solve that problem or workaround?

Thanks

[HenryHengZJ]

if you use the latest vector store without Upsert or Load Existing, it should be very fast as it will no longer do the upsert for the 1st question

[kientv]

Yep, I'm testing on latest vector store, Do Langchain need to warm-up or re-connect to Vector db?