feature:add milvus store

pilot/configs/model_config.py

@@ -48,3 +48,5 @@ DB_SETTINGS = {
 VS_ROOT_PATH = os.path.join(os.path.dirname(os.path.dirname(__file__)), "vs_store")
 KNOWLEDGE_UPLOAD_ROOT_PATH = os.path.join(os.path.dirname(os.path.dirname(__file__)), "data")
 KNOWLEDGE_CHUNK_SPLIT_SIZE = 100
+VECTOR_STORE_TYPE = "milvus"
+VECTOR_STORE_CONFIG = {"url": "127.0.0.1", "port": "19530"}

pilot/server/webserver.py

@@ -19,7 +19,8 @@ from langchain import PromptTemplate
 ROOT_PATH = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 sys.path.append(ROOT_PATH)
 
-from pilot.configs.model_config import DB_SETTINGS, KNOWLEDGE_UPLOAD_ROOT_PATH, LLM_MODEL_CONFIG, VECTOR_SEARCH_TOP_K
+from pilot.configs.model_config import DB_SETTINGS, KNOWLEDGE_UPLOAD_ROOT_PATH, LLM_MODEL_CONFIG, VECTOR_SEARCH_TOP_K, \
+    VECTOR_STORE_CONFIG
 from pilot.server.vectordb_qa import KnownLedgeBaseQA
 from pilot.connections.mysql import MySQLOperator
 from pilot.source_embedding.knowledge_embedding import KnowledgeEmbedding
@@ -267,12 +268,16 @@ def http_bot(state, mode, sql_mode, db_selector, temperature, max_new_tokens, re
         skip_echo_len = len(prompt.replace("</s>", " ")) + 1
 
     if mode == conversation_types["custome"] and not db_selector:
-        persist_dir = os.path.join(KNOWLEDGE_UPLOAD_ROOT_PATH, vector_store_name["vs_name"] + ".vectordb")
+        # persist_dir = os.path.join(KNOWLEDGE_UPLOAD_ROOT_PATH, vector_store_name["vs_name"])
-        print("vector store path: ", persist_dir)
+        print("vector store type: ", VECTOR_STORE_CONFIG)
+        print("vector store name: ", vector_store_name["vs_name"])
+        vector_store_config = VECTOR_STORE_CONFIG
+        vector_store_config["vector_store_name"] = vector_store_name["vs_name"]
+        vector_store_config["text_field"] = "content"
+        vector_store_config["vector_store_path"] = KNOWLEDGE_UPLOAD_ROOT_PATH
         knowledge_embedding_client = KnowledgeEmbedding(file_path="", model_name=LLM_MODEL_CONFIG["text2vec"],
                                                         local_persist=False,
-                                                        vector_store_config={"vector_store_name": vector_store_name["vs_name"],
+                                                        vector_store_config=vector_store_config)
-                                                      "vector_store_path": KNOWLEDGE_UPLOAD_ROOT_PATH})
         query = state.messages[-2][1]
         docs = knowledge_embedding_client.similar_search(query, VECTOR_SEARCH_TOP_K)
         context = [d.page_content for d in docs]

pilot/source_embedding/knowledge_embedding.py

@@ -1,7 +1,7 @@
 import os
 
 from bs4 import BeautifulSoup
-from langchain.document_loaders import PyPDFLoader, TextLoader, markdown
+from langchain.document_loaders import TextLoader, markdown
 from langchain.embeddings import HuggingFaceEmbeddings
 from langchain.vectorstores import Chroma
 from pilot.configs.model_config import DATASETS_DIR, KNOWLEDGE_CHUNK_SPLIT_SIZE
@@ -12,6 +12,7 @@ from pilot.source_embedding.pdf_embedding import PDFEmbedding
 import markdown
 
 from pilot.source_embedding.pdf_loader import UnstructuredPaddlePDFLoader
+from pilot.vector_store.milvus_store import MilvusStore
 
 
 class KnowledgeEmbedding:
@@ -20,7 +21,7 @@ class KnowledgeEmbedding:
         self.file_path = file_path
         self.model_name = model_name
         self.vector_store_config = vector_store_config
-        self.vector_store_type = "default"
+        self.file_type = "default"
         self.embeddings = HuggingFaceEmbeddings(model_name=self.model_name)
         self.local_persist = local_persist
         if not self.local_persist:
@@ -42,7 +43,7 @@ class KnowledgeEmbedding:
         elif self.file_path.endswith(".csv"):
             embedding = CSVEmbedding(file_path=self.file_path, model_name=self.model_name,
                                      vector_store_config=self.vector_store_config)
-        elif self.vector_store_type == "default":
+        elif self.file_type == "default":
             embedding = MarkdownEmbedding(file_path=self.file_path, model_name=self.model_name, vector_store_config=self.vector_store_config)
 
         return embedding
@@ -52,6 +53,8 @@ class KnowledgeEmbedding:
 
     def knowledge_persist_initialization(self, append_mode):
         vector_name = self.vector_store_config["vector_store_name"]
+        documents = self._load_knownlege(self.file_path)
+        if self.vector_store_config["vector_store_type"] == "Chroma":
             persist_dir = os.path.join(self.vector_store_config["vector_store_path"], vector_name + ".vectordb")
             print("vector db path: ", persist_dir)
             if os.path.exists(persist_dir):
@@ -66,11 +69,17 @@ class KnowledgeEmbedding:
                     vector_store = Chroma(persist_directory=persist_dir, embedding_function=self.embeddings)
             else:
                 print(vector_name + " is new vector store, knowledge begin load...")
-            documents = self._load_knownlege(self.file_path)
                 vector_store = Chroma.from_documents(documents=documents,
                                                      embedding=self.embeddings,
                                                      persist_directory=persist_dir)
                 vector_store.persist()
+
+        elif self.vector_store_config["vector_store_type"] == "milvus":
+            vector_store = MilvusStore({"url": self.vector_store_config["url"],
+                                "port": self.vector_store_config["port"],
+                                "embedding": self.embeddings})
+            vector_store.init_schema_and_load(vector_name, documents)
+
         return vector_store
 
     def _load_knownlege(self, path):

pilot/source_embedding/source_embedding.py

@@ -5,9 +5,14 @@ from abc import ABC, abstractmethod
 
 from langchain.embeddings import HuggingFaceEmbeddings
 from langchain.vectorstores import Chroma
+from langchain.vectorstores import Milvus
 
 from typing import List, Optional, Dict
 
+
+from pilot.configs.model_config import VECTOR_STORE_TYPE, VECTOR_STORE_CONFIG
+from pilot.vector_store.milvus_store import MilvusStore
+
 registered_methods = []
 
 
@@ -29,6 +34,17 @@ class SourceEmbedding(ABC):
         self.vector_store_config = vector_store_config
         self.embedding_args = embedding_args
         self.embeddings = HuggingFaceEmbeddings(model_name=self.model_name)
+
+        if VECTOR_STORE_TYPE == "milvus":
+            print(VECTOR_STORE_CONFIG)
+            if self.vector_store_config.get("text_field") is None:
+                self.vector_store_client = MilvusStore({"url": VECTOR_STORE_CONFIG["url"],
+                                            "port": VECTOR_STORE_CONFIG["port"],
+                                            "embedding": self.embeddings})
+            else:
+                self.vector_store_client = Milvus(embedding_function=self.embeddings, collection_name=self.vector_store_config["vector_store_name"], text_field="content",
+                                            connection_args={"host": VECTOR_STORE_CONFIG["url"], "port": VECTOR_STORE_CONFIG["port"]})
+        else:
             persist_dir = os.path.join(self.vector_store_config["vector_store_path"],
                                        self.vector_store_config["vector_store_name"] + ".vectordb")
             self.vector_store_client = Chroma(persist_directory=persist_dir, embedding_function=self.embeddings)
@@ -54,11 +70,19 @@ class SourceEmbedding(ABC):
     @register
     def index_to_store(self, docs):
         """index to vector store"""
+
+        if VECTOR_STORE_TYPE == "chroma":
             persist_dir = os.path.join(self.vector_store_config["vector_store_path"],
                                        self.vector_store_config["vector_store_name"] + ".vectordb")
             self.vector_store = Chroma.from_documents(docs, self.embeddings, persist_directory=persist_dir)
             self.vector_store.persist()
 
+        elif VECTOR_STORE_TYPE == "milvus":
+            self.vector_store = MilvusStore({"url": VECTOR_STORE_CONFIG["url"],
+                                        "port": VECTOR_STORE_CONFIG["port"],
+                                        "embedding": self.embeddings})
+            self.vector_store.init_schema_and_load(self.vector_store_config["vector_store_name"], docs)
+
     @register
     def similar_search(self, doc, topk):
         """vector store similarity_search"""

pilot/vector_store/milvus_store.py

@@ -1,31 +1,35 @@
+from typing import List, Optional, Iterable
+
 from langchain.embeddings import HuggingFaceEmbeddings
 from pymilvus import DataType, FieldSchema, CollectionSchema, connections, Collection
 
-from pilot.configs.model_config import LLM_MODEL_CONFIG
 from pilot.vector_store.vector_store_base import VectorStoreBase
 
 
 class MilvusStore(VectorStoreBase):
-    def __init__(self, cfg: {}) -> None:
+    def __init__(self, ctx: {}) -> None:
-        """Construct a milvus memory storage connection.
+        """init a milvus storage connection.
 
         Args:
-            cfg (Config): MilvusStore global config.
+            ctx ({}): MilvusStore global config.
         """
         # self.configure(cfg)
 
         connect_kwargs = {}
         self.uri = None
-        self.uri = cfg["url"]
+        self.uri = ctx["url"]
-        self.port = cfg["port"]
+        self.port = ctx["port"]
-        self.username = cfg.get("username", None)
+        self.username = ctx.get("username", None)
-        self.password = cfg.get("password", None)
+        self.password = ctx.get("password", None)
-        self.collection_name = cfg["table_name"]
+        self.collection_name = ctx.get("table_name", None)
-        self.password = cfg.get("secure", None)
+        self.secure = ctx.get("secure", None)
+        self.model_config = ctx.get("model_config", None)
+        self.embedding = ctx.get("embedding", None)
+        self.fields = []
 
         # use HNSW by default.
         self.index_params = {
-            "metric_type": "IP",
+            "metric_type": "L2",
             "index_type": "HNSW",
             "params": {"M": 8, "efConstruction": 64},
         }
@@ -39,20 +43,144 @@ class MilvusStore(VectorStoreBase):
             connect_kwargs["password"] = self.password
 
         connections.connect(
-            **connect_kwargs,
             host=self.uri or "127.0.0.1",
             port=self.port or "19530",
             alias="default"
             # secure=self.secure,
         )
+        if self.collection_name is not None:
+            self.col = Collection(self.collection_name)
+            schema = self.col.schema
+            for x in schema.fields:
+                self.fields.append(x.name)
+                if x.auto_id:
+                    self.fields.remove(x.name)
+                if x.is_primary:
+                    self.primary_field = x.name
+                if x.dtype == DataType.FLOAT_VECTOR or x.dtype == DataType.BINARY_VECTOR:
+                    self.vector_field = x.name
 
-        self.init_schema()
+
+        # self.init_schema()
+        # self.init_collection_schema()
+
+    def init_schema_and_load(self, vector_name, documents):
+        """Create a Milvus collection, indexes it with HNSW, load document.
+                Args:
+                    documents (List[str]): Text to insert.
+                    vector_name (Embeddings): your collection name.
+                Returns:
+                    VectorStore: The MilvusStore vector store.
+                """
+        try:
+            from pymilvus import (
+                Collection,
+                CollectionSchema,
+                DataType,
+                FieldSchema,
+                connections,
+            )
+            from pymilvus.orm.types import infer_dtype_bydata
+        except ImportError:
+            raise ValueError(
+                "Could not import pymilvus python package. "
+                "Please install it with `pip install pymilvus`."
+            )
+        # Connect to Milvus instance
+        if not connections.has_connection("default"):
+            connections.connect(
+                host=self.uri or "127.0.0.1",
+                port=self.port or "19530",
+                alias="default"
+                # secure=self.secure,
+            )
+        texts = [d.page_content for d in documents]
+        metadatas = [d.metadata for d in documents]
+        embeddings = self.embedding.embed_query(texts[0])
+        dim = len(embeddings)
+        # Generate unique names
+        primary_field = "pk_id"
+        vector_field = "vector"
+        text_field = "content"
+        self.text_field = text_field
+        collection_name = vector_name
+        fields = []
+        # Determine metadata schema
+        # if metadatas:
+        #     # Check if all metadata keys line up
+        #     key = metadatas[0].keys()
+        #     for x in metadatas:
+        #         if key != x.keys():
+        #             raise ValueError(
+        #                 "Mismatched metadata. "
+        #                 "Make sure all metadata has the same keys and datatype."
+        #             )
+        #     # Create FieldSchema for each entry in singular metadata.
+        #     for key, value in metadatas[0].items():
+        #         # Infer the corresponding datatype of the metadata
+        #         dtype = infer_dtype_bydata(value)
+        #         if dtype == DataType.UNKNOWN:
+        #             raise ValueError(f"Unrecognized datatype for {key}.")
+        #         elif dtype == DataType.VARCHAR:
+        #             # Find out max length text based metadata
+        #             max_length = 0
+        #             for subvalues in metadatas:
+        #                 max_length = max(max_length, len(subvalues[key]))
+        #             fields.append(
+        #                 FieldSchema(key, DataType.VARCHAR, max_length=max_length + 1)
+        #             )
+        #         else:
+        #             fields.append(FieldSchema(key, dtype))
+
+        # Find out max length of texts
+        max_length = 0
+        for y in texts:
+            max_length = max(max_length, len(y))
+        # Create the text field
+        fields.append(
+            FieldSchema(text_field, DataType.VARCHAR, max_length=max_length + 1)
+        )
+        # Create the primary key field
+        fields.append(
+            FieldSchema(primary_field, DataType.INT64, is_primary=True, auto_id=True)
+        )
+        # Create the vector field
+        fields.append(FieldSchema(vector_field, DataType.FLOAT_VECTOR, dim=dim))
+        # Create the schema for the collection
+        schema = CollectionSchema(fields)
+        # Create the collection
+        collection = Collection(collection_name, schema)
+        self.col = collection
+        # Index parameters for the collection
+        index = self.index_params
+        # Create the index
+        collection.create_index(vector_field, index)
+        # Create the VectorStore
+        # milvus = cls(
+        #     embedding,
+        #     kwargs.get("connection_args", {"port": 19530}),
+        #     collection_name,
+        #     text_field,
+        # )
+        # Add the texts.
+        schema = collection.schema
+        for x in schema.fields:
+            self.fields.append(x.name)
+            if x.auto_id:
+                self.fields.remove(x.name)
+            if x.is_primary:
+                self.primary_field = x.name
+            if x.dtype == DataType.FLOAT_VECTOR or x.dtype == DataType.BINARY_VECTOR:
+                self.vector_field = x.name
+        self._add_texts(texts, metadatas)
+
+        return self.collection_name
 
     def init_schema(self) -> None:
         """Initialize collection in milvus database."""
         fields = [
             FieldSchema(name="pk", dtype=DataType.INT64, is_primary=True, auto_id=True),
-            FieldSchema(name="vector", dtype=DataType.FLOAT_VECTOR, dim=384),
+            FieldSchema(name="vector", dtype=DataType.FLOAT_VECTOR, dim=self.model_config["dim"]),
             FieldSchema(name="raw_text", dtype=DataType.VARCHAR, max_length=65535),
         ]
 
@@ -75,7 +203,7 @@ class MilvusStore(VectorStoreBase):
         info = self.collection.describe()
         self.collection.load()
 
-    def insert(self, text) -> str:
+    def insert(self, text, model_config) -> str:
         """Add an embedding of data into milvus.
         Args:
             text (str): The raw text to construct embedding index.
@@ -83,10 +211,54 @@ class MilvusStore(VectorStoreBase):
             str: log.
         """
         # embedding = get_ada_embedding(data)
-        embeddings = HuggingFaceEmbeddings(model_name=LLM_MODEL_CONFIG["sentence-transforms"])
+        embeddings = HuggingFaceEmbeddings(model_name=self.model_config["model_name"])
         result = self.collection.insert([embeddings.embed_documents(text), text])
         _text = (
             "Inserting data into memory at primary key: "
             f"{result.primary_keys[0]}:\n data: {text}"
         )
         return _text
+
+    def _add_texts(
+        self,
+        texts: Iterable[str],
+        metadatas: Optional[List[dict]] = None,
+        partition_name: Optional[str] = None,
+        timeout: Optional[int] = None,
+    ) -> List[str]:
+        """Insert text data into Milvus.
+        Args:
+            texts (Iterable[str]): The text being embedded and inserted.
+            metadatas (Optional[List[dict]], optional): The metadata that
+                corresponds to each insert. Defaults to None.
+            partition_name (str, optional): The partition of the collection
+                to insert data into. Defaults to None.
+            timeout: specified timeout.
+
+        Returns:
+            List[str]: The resulting keys for each inserted element.
+        """
+        insert_dict: Any = {self.text_field: list(texts)}
+        try:
+            insert_dict[self.vector_field] = self.embedding.embed_documents(
+                list(texts)
+            )
+        except NotImplementedError:
+            insert_dict[self.vector_field] = [
+                self.embedding.embed_query(x) for x in texts
+            ]
+        # Collect the metadata into the insert dict.
+        if len(self.fields) > 2 and metadatas is not None:
+            for d in metadatas:
+                for key, value in d.items():
+                    if key in self.fields:
+                        insert_dict.setdefault(key, []).append(value)
+        # Convert dict to list of lists for insertion
+        insert_list = [insert_dict[x] for x in self.fields]
+        # Insert into the collection.
+        res = self.col.insert(
+            insert_list, partition_name=partition_name, timeout=timeout
+        )
+        # Flush to make sure newly inserted is immediately searchable.
+        self.col.flush()
+        return res.primary_keys

requirements.txt

@@ -60,6 +60,7 @@ gTTS==2.3.1
 langchain
 nltk
 python-dotenv==1.0.0
+pymilvus
 
 # Testing dependencies
 pytest

tools/knowlege_init.py

@@ -2,8 +2,10 @@
 # -*- coding: utf-8 -*-
 import argparse
 
-from pilot.configs.model_config import DATASETS_DIR, LLM_MODEL_CONFIG, VECTOR_SEARCH_TOP_K, \
+from langchain.embeddings import HuggingFaceEmbeddings
-    KNOWLEDGE_UPLOAD_ROOT_PATH
+from langchain.vectorstores import Milvus
+
+from pilot.configs.model_config import DATASETS_DIR, LLM_MODEL_CONFIG, VECTOR_SEARCH_TOP_K, VECTOR_STORE_CONFIG
 from pilot.source_embedding.knowledge_embedding import KnowledgeEmbedding
 
 
@@ -12,15 +14,15 @@ class LocalKnowledgeInit:
     model_name = LLM_MODEL_CONFIG["text2vec"]
     top_k: int = VECTOR_SEARCH_TOP_K
 
-    def __init__(self) -> None:
+    def __init__(self, vector_store_config) -> None:
-        pass
+        self.vector_store_config = vector_store_config
 
-    def knowledge_persist(self, file_path, vector_name, append_mode):
+    def knowledge_persist(self, file_path, append_mode):
         """ knowledge persist """
         kv = KnowledgeEmbedding(
             file_path=file_path,
             model_name=LLM_MODEL_CONFIG["text2vec"],
-            vector_store_config= {"vector_store_name":vector_name, "vector_store_path": KNOWLEDGE_UPLOAD_ROOT_PATH})
+            vector_store_config= self.vector_store_config)
         vector_store = kv.knowledge_persist_initialization(append_mode)
         return vector_store
 
@@ -34,11 +36,15 @@ class LocalKnowledgeInit:
 
 if __name__ == "__main__":
     parser = argparse.ArgumentParser()
-    parser.add_argument("--vector_name", type=str, default="default")
+    parser.add_argument("--vector_name", type=str, default="keting")
     parser.add_argument("--append", type=bool, default=False)
+    parser.add_argument("--store_type", type=str, default="Chroma")
     args = parser.parse_args()
     vector_name = args.vector_name
     append_mode = args.append
-    kv  = LocalKnowledgeInit()
+    store_type = args.store_type
-    vector_store = kv.knowledge_persist(file_path=DATASETS_DIR, vector_name=vector_name, append_mode=append_mode)
+    vector_store_config = {"url": VECTOR_STORE_CONFIG["url"], "port": VECTOR_STORE_CONFIG["port"], "vector_store_name":vector_name, "vector_store_type":store_type}
+    print(vector_store_config)
+    kv  = LocalKnowledgeInit(vector_store_config=vector_store_config)
+    vector_store = kv.knowledge_persist(file_path=DATASETS_DIR, append_mode=append_mode)
     print("your knowledge embedding success...")