KBQA FAQ

Q1: text2vec-large-chinese not found

make sure you have download text2vec-large-chinese embedding model in right way

centos:yum install git-lfs
ubuntu:apt-get install git-lfs -y
macos:brew install git-lfs

cd models
git lfs clone https://huggingface.co/GanymedeNil/text2vec-large-chinese

Q2:How to change Vector DB Type in DB-GPT.

Update .env file and set VECTOR_STORE_TYPE.

DB-GPT currently support Chroma(Default), Milvus(>2.1), Weaviate vector database. If you want to change vector db, Update your .env, set your vector store type, VECTOR_STORE_TYPE=Chroma (now only support Chroma and Milvus(>2.1), if you set Milvus, please set MILVUS_URL and MILVUS_PORT) If you want to support more vector db, you can integrate yourself.how to integrate

#*******************************************************************#
#**                  VECTOR STORE SETTINGS                       **#
#*******************************************************************#
VECTOR_STORE_TYPE=Chroma
#MILVUS_URL=127.0.0.1
#MILVUS_PORT=19530
#MILVUS_USERNAME
#MILVUS_PASSWORD
#MILVUS_SECURE=

#WEAVIATE_URL=https://kt-region-m8hcy0wc.weaviate.network

Q3:When I use vicuna-13b, found some illegal character like this.

Set KNOWLEDGE_SEARCH_TOP_SIZE smaller or set KNOWLEDGE_CHUNK_SIZE smaller, and reboot server.

Q4:space add error (pymysql.err.OperationalError) (1054, "Unknown column 'knowledge_space.context' in 'field list'")

1.shutdown dbgpt_server(ctrl c)

2.add column context for table knowledge_space

mysql -h127.0.0.1 -uroot -paa12345678

3.execute sql ddl

mysql> use knowledge_management;
mysql> ALTER TABLE knowledge_space ADD COLUMN context TEXT COMMENT "arguments context";

4.restart dbgpt serve

Q5:Use Mysql, how to use DB-GPT KBQA

build Mysql KBQA system database schema.

$ mysql -h127.0.0.1 -uroot -paa12345678 < ./assets/schema/knowledge_management.sql

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