4 posts tagged with "Milvus"

Debugging multi-tenant collection naming in a RAG knowledge base project — full writeup below.

TL;DR​

Concatenating f"{tenant_id}_{collection}" to name a Milvus collection breaks when tenant_id is a UUID: the result starts with a digit and contains hyphens -, both of which violate Milvus naming rules and throw code=1100. The rule in one line: first character must be a letter or underscore, only [a-zA-Z0-9_] allowed, no hyphens. Never concatenate a UUID raw — use the original collection name, or convert it to a legal identifier.

While maintaining a 2-core 7GB cloud server for a client, I discovered disk usage at 93% (only 3GB free) and Airflow scheduler consistently consuming 160% CPU. Here's the complete diagnosis and fix.

在 RAG 知识库项目中调试混合检索评分问题，以下是完整排查过程。

TL;DR​

Milvus 混合检索的加权融合分数 = 0.7 * dense_score + 0.3 * sparse_score，理论最大值约 0.7。如果用 min_similarity=0.7 过滤，结果几乎全被剔除。解决方案：将阈值降到 0.3，或根据融合策略动态调整。

在 RAG 知识库项目中调试混合检索评分问题，以下是完整排查过程。

TL;DR​

Milvus 混合搜索（Dense + Sparse）有四个常见坑：空稀疏向量报错、Collection 未加载、sparse 格式错误、阈值过高。本文给出每个问题的最小修复代码。