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LangChain chunk_overlap=200: 2,181 of 4,155 Chunks Got No Overlap

This is the first line of a chunk from my test index: That 14.2% is the number that explains the 32% crash rate. 14.2% of what? The answer sits at the end of the previous chunk, and the two chunks share zero characters. I had set LangChain chunk_overlap=200 , the setting every RAG tutorial uses to…

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  1. 2026-11-06 01:15 · DEV Community — Machine Learning
    LangChain chunk_overlap=200: 2,181 of 4,155 Chunks Got No Overlap

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