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RAG retrieval returns irrelevant or missing context

LLM apps10 posts from 10 people6d active+33 posts in the last 7 days, 1 the 7 days before (rising)

Posts per day

Posts per day10 posts, Aug 28 to Sep 25

The posts behind it

10, newest first
PostDate
I’m struggling to understand how this approach is novel. How is this different from nearest-neighbor within traditional vector search, used by RAG systems? What am I missing? 1. Compute input embeddings 2. Concurrently compute distance-to/logits-of runtime-specifiHacker News commentssota_popSep 232 days ago
Should I take this new position?...came to me recently from a bigger company that's been around for a while, and I'm struggling choosing between staying or going.. This is my breakdown:. Current Company (82k; low tier benefits, small PTO gain) Pros . Small team, so there's high ownership and visibility. Easy to...r/dataengineeringu/NerdasticPerformerSep 223 days ago
text-splitters: `RecursiveJsonSplitter` sizes chunks against escaped JSON, so `ensure_ascii=False` chunks come back far below `max_chunk_size`...the same document. `split_json` doesn't take `ensure_ascii` at all, so there's currently no way to ask for the unescaped measurement. Happy to open a PR: thread `ensure_ascii` from `split_text` through `split_json` and `_json_split` into `_json_size`, defaulting to `True`...langchain-ai/langchainpablo-legerenSep 223 days ago
[Feature]: Production evidence for restoring concurrent partial prefill limits (max_num_partial_prefills / max_concurrent_prefills) in V1 scheduler...and we believe this is a strong real-world case for reviving #49075 / #55256. ## Problem With `--enable-chunked-prefill` and `--max-num-batched-tokens` set to a reasonably high value (tested 8192 and 16384), a single long-prompt request still needs many scheduler iterations to...vllm-project/vllmjavimp2003Sep 178 days ago
Why Your Enterprise RAG Pipeline Is Failing Before the First Query RunsMost teams building Retrieval-Augmented Generation (RAG) systems invest their engineering effort in two places: the LLM and the retrieval layer. They tune prompts, experiment with embedding models, compare vector databases, and benchmark retrieval precision. When the system...DEV #awsaws_sa_sgSep 112 weeks ago
MPS: linalg.svd / svdvals / lstsq fail with a Metal pipeline-state error above 8192 input elements...`N` for `(N, m, m)` float32 inputs: | shape | largest working `N` | `N * m * m` | first failing `N * m * m` | |---|---|---|---| | `(N, 2, 2)` | 2047 | 8188 | 8192 | | `(N, 3, 3)` | 910 | 8190 | 8199 | | `(N, 4, 4)` | 511 | 8176 | 8192 | | `(N, 8, 9)` | 113 | 8136 | 8208 | | `(N,...pytorch/pytorchducha-aikiSep 33 weeks ago
Support large `Map`s in Parquet/Arrow...the entries buffer whole and the offsets absolute, so a few-element slice of a big map fails to export even though it holds almost no entries -- and the Parquet writer hits this on its own, because it splits row groups by slicing. ### 2. A single Polars chunk holds 2^31+ entries...pola-rs/polarsdancsiSep 33 weeks ago
...rate under 1%. Delivered dozens product on the market and fixed delivery processes for struggling companies.Hacker News commentspftgSep 33 weeks ago
Turbopack panics in ModuleGraphImportTracer: 'entered unreachable code: there must be a path to a root' (module_graph/mod.rs:750)### Link to the code that reproduces this issue https://github.com/agentHits/next-prerender-workstore-reproduction ### To Reproduce 1. Clone reproduction repository: 2. Run a cold static export build without `experimental.inlineCss: true`: 3. On projects with standalone output...vercel/next.jsagentHitsSep 33 weeks ago
Turbopack build: whole-app module graph construction is effectively serial and dominates large-app production buildsOn a large Next.js App Router application (2,070 routes, roughly 16,000 first-party TypeScript files, module graph of ~31,000 modules), `next build` with Turbopack spends 60% of its wall time in a phase that uses almost no parallelism, while the rest of the build parallelizes...vercel/next.jsejc3Aug 284 weeks ago

Companies and products named

Company or productPosts naming it
GitHub2
Vercel2
SQL Server1
Anthropic1
OpenAI1
Perplexity1
About this problem

Evidence

10 posts from 10 people in 8 places, about 3 a week over 27 days. Mostly on Hacker News comments, vercel/next.js, DEV #aws. Tools named alongside: GitHub, Vercel, SQL Server, Anthropic.

Frustration Frustration 0 of 3· Seen on GitHub issues, Hacker News, DEV, Reddit

How it was grouped

Posts that state a pain and match the "rag-retrieval" rule. First post Aug 28, 2026, latest Sep 23, 2026. Corroborated: 3 or more posts from 2 or more people or places. Method

History

  • 2026-09-25 Added: RAG retrieval returns irrelevant or missing context (7 posts)

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