Qdrant vector search quality is hard to get right

Databases8 posts from 7 people4d active+00 posts in the last 7 days, 0 the 7 days before (fading)

Posts per day8 posts, Sep 3 to Sep 25

The posts behind it

8, newest first

Post	Where	Date
Qdrant N8N update question### Bug Description The @n8n/n8n-nodes-langchain.vectorStoreQdrant node (v1.3, retrieve-as-tool mode, attached to an AI Agent) throws "fetch failed" at execution time. The Qdrant cluster is healthy and the credential tests successfully. The same Qdrant endpoint and API key work...n8n-io/n8nclientworkaccess-cmd	n8n-io/n8nclientworkaccess-cmd2 reactions, 19 replies	Sep 112 weeks ago
Qdrant Fetching error### Bug Description The @n8n/n8n-nodes-langchain.vectorStoreQdrant node (v1.3, retrieve-as-tool mode, attached to an AI Agent) throws "fetch failed" at execution time. The Qdrant cluster is healthy and the credential tests successfully. The same Qdrant endpoint and API key work...n8n-io/n8nclientworkaccess-cmd	n8n-io/n8nclientworkaccess-cmd5 replies	Sep 92 weeks ago
Qdrant Vector Store node: insert fails with "fetch failed" against Qdrant Cloud (search/delete to same host succeed)### Bug Description The Qdrant Vector Store node (@n8n/n8n-nodes-langchain.vectorStoreQdrant, v1.3) consistently fails with "fetch failed" when running mode: insert against a Qdrant Cloud cluster. Facts that isolate the problem to the insert path of this node: - The qdrantApi...n8n-io/n8nsumiVer2	n8n-io/n8nsumiVer23 replies	Sep 92 weeks ago
"Qdrant Vector Store" broken## Describe the problem/error/question Since September 1st the node "Qdrant Vector Store" doesn't work anymore. ## What is the error message (if any)? "Fetch failed" and others ## Please share your workflow/screenshots/recording { "nodes": [ { "parameters": { "mode": "insert",...n8n-io/n8nfelix-sh	n8n-io/n8nfelix-sh3 replies	Sep 92 weeks ago
Qdrant v1.19.1 fetch failed...It did so perfectly in the past. Just wit the latest Qdrant update (Qdrant v1.19.1) it doesnt work anymore. ## Debug info ### core - n8nVersion: 2.37.10 - platform: docker (self-hosted) - nodeJsVersion: 26.5.1 - nodeEnv: production - database: postgres - executionMode: scaling...n8n-io/n8nmcr-ksh	n8n-io/n8nmcr-ksh9 replies	Sep 92 weeks ago
Qdrant Vector Store node: "fetch failed" / UND_ERR_INVALID_ARG when loading collections dropdown (undici dispatcher version mismatch)...directly inside the n8n container: Failed to obtain server version. Unable to check client-server compatibility. CLIENT ERROR: TypeError: fetch failed at Object.processResponse (node:internal/deps/undici/undici:13720:20) ... [cause]: InvalidArgumentError: invalid onError method...n8n-io/n8nbestillcat	n8n-io/n8nbestillcat1 reactions, 9 replies	Sep 52 weeks ago
Qdrant Vector Store fails with Qdrant 1.19.x because bundled @qdrant/js-client-rest is outdated...credentials. 5. Open the Qdrant Collection dropdown. 6. Observe that the collection list fails to load with: "Could not load list - fetch failed". 7. Enter a valid collection name manually. 8. Execute the Qdrant Vector Store node. 9. Observe that execution also fails with:...n8n-io/n8ngokhanmms	n8n-io/n8ngokhanmms1 reactions, 4 replies	Sep 52 weeks ago
n8n 2.37.7 - Qdrant Vector Store "fetch failed" with Qdrant 1.19.0## Describe the problem/error/question I am experiencing a connection/runtime issue with the Qdrant Vector Store node in n8n Cloud. The Qdrant credentials are configured successfully, and Qdrant itself is reachable from the same n8n Cloud instance using an HTTP Request node....n8n-io/n8nloc-tvg0716-tvhs	n8n-io/n8nloc-tvg0716-tvhs1 reactions, 4 replies	Sep 33 weeks ago

Companies and products named

Company or product	Posts naming it
Qdrant	8
n8n	8
LangChain	5
SQLite	4
Docker	4
PostgreSQL	3

About this problem

Evidence

8 posts from 7 people in 1 place, about 4 a week over 9 days. Mostly on n8n-io/n8n. Tools named alongside: n8n, LangChain, SQLite, Docker.

Frustration Frustration 0 of 3· Seen on GitHub issues

How it was grouped

Posts that state a pain and match the "vector-search" rule about Qdrant. First post Sep 3, 2026, latest Sep 11, 2026. Corroborated: 3 or more posts from 2 or more people or places. Method

The same problem elsewhere

Vector search quality and scaling are hard to get right (5)

History

2026-09-25 Added: Qdrant vector search quality is hard to get right (8 posts)

Posts per day

The posts behind it

Companies and products named

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