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Merge pull request #17770 from Classic298/feat-milvus-diskann-support

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feat: Add DISKANN index type support for Milvus
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Tim Jaeryang Baek 2025-09-26 14:23:53 -05:00 committed by GitHub
commit f8a3ed2d18
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2 changed files with 13 additions and 1 deletions
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4
backend/open_webui/config.py
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@ -2009,6 +2009,10 @@ MILVUS_METRIC_TYPE = os.environ.get("MILVUS_METRIC_TYPE", "COSINE")
MILVUS_HNSW_M = int(os.environ.get("MILVUS_HNSW_M", "16"))
MILVUS_HNSW_EFCONSTRUCTION = int(os.environ.get("MILVUS_HNSW_EFCONSTRUCTION", "100"))
MILVUS_IVF_FLAT_NLIST = int(os.environ.get("MILVUS_IVF_FLAT_NLIST", "128"))
MILVUS_DISKANN_MAX_DEGREE = int(os.environ.get("MILVUS_DISKANN_MAX_DEGREE", "56"))
MILVUS_DISKANN_SEARCH_LIST_SIZE = int(
os.environ.get("MILVUS_DISKANN_SEARCH_LIST_SIZE", "100")
)
# Qdrant
QDRANT_URI = os.environ.get("QDRANT_URI", None)

10
backend/open_webui/retrieval/vector/dbs/milvus.py
View file

@ -22,6 +22,8 @@ from open_webui.config import (
MILVUS_HNSW_M,
MILVUS_HNSW_EFCONSTRUCTION,
MILVUS_IVF_FLAT_NLIST,
MILVUS_DISKANN_MAX_DEGREE,
MILVUS_DISKANN_SEARCH_LIST_SIZE,
)
from open_webui.env import SRC_LOG_LEVELS
@ -131,12 +133,18 @@ class MilvusClient(VectorDBBase):
elif index_type == "IVF_FLAT":
index_creation_params = {"nlist": MILVUS_IVF_FLAT_NLIST}
log.info(f"IVF_FLAT params: {index_creation_params}")
elif index_type == "DISKANN":
index_creation_params = {
"max_degree": MILVUS_DISKANN_MAX_DEGREE,
"search_list_size": MILVUS_DISKANN_SEARCH_LIST_SIZE,
}
log.info(f"DISKANN params: {index_creation_params}")
elif index_type in ["FLAT", "AUTOINDEX"]:
log.info(f"Using {index_type} index with no specific build-time params.")
else:
log.warning(
f"Unsupported MILVUS_INDEX_TYPE: '{index_type}'. "
f"Supported types: HNSW, IVF_FLAT, FLAT, AUTOINDEX. "
f"Supported types: HNSW, IVF_FLAT, DISKANN, FLAT, AUTOINDEX. "
f"Milvus will use its default for the collection if this type is not directly supported for index creation."
)
# For unsupported types, pass the type directly to Milvus; it might handle it or use a default.