Async support for some microservices (opea-project#763)

* Async support for some microservices

Signed-off-by: lvliang-intel <liang1.lv@intel.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* fix issues

Signed-off-by: lvliang-intel <liang1.lv@intel.com>

* fix issues

Signed-off-by: lvliang-intel <liang1.lv@intel.com>

* fix import issue

Signed-off-by: lvliang-intel <liang1.lv@intel.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* add dependency library

Signed-off-by: lvliang-intel <liang1.lv@intel.com>

* fix issue

Signed-off-by: lvliang-intel <liang1.lv@intel.com>

* roll back pinecone change

Signed-off-by: lvliang-intel <liang1.lv@intel.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Signed-off-by: lvliang-intel <liang1.lv@intel.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

comps/embeddings/mosec/langchain/embedding_mosec.py

@@ -57,11 +57,11 @@ def empty_embedding() -> List[float]:
     output_datatype=EmbedDoc,
 )
 @register_statistics(names=["opea_service@embedding_mosec"])
-def embedding(input: TextDoc) -> EmbedDoc:
+async def embedding(input: TextDoc) -> EmbedDoc:
     if logflag:
         logger.info(input)
     start = time.time()
-    embed_vector = embeddings.embed_query(input.text)
+    embed_vector = await embeddings.aembed_query(input.text)
     res = EmbedDoc(text=input.text, embedding=embed_vector)
     statistics_dict["opea_service@embedding_mosec"].append_latency(time.time() - start, None)
     if logflag:

comps/intent_detection/langchain/intent_detection.py

@@ -16,7 +16,7 @@
     host="0.0.0.0",
     port=9000,
 )
-def llm_generate(input: LLMParamsDoc):
+async def llm_generate(input: LLMParamsDoc):
     llm_endpoint = os.getenv("TGI_LLM_ENDPOINT", "http://localhost:8080")
     llm = HuggingFaceEndpoint(
         endpoint_url=llm_endpoint,
@@ -35,7 +35,7 @@ def llm_generate(input: LLMParamsDoc):
 
     llm_chain = LLMChain(prompt=prompt, llm=llm)
 
-    response = llm_chain.invoke(input.query)
+    response = await llm_chain.ainvoke(input.query)
     response = response["text"]
     print("response", response)
     return GeneratedDoc(text=response, prompt=input.query)

comps/llms/faq-generation/tgi/langchain/llm.py

@@ -34,10 +34,9 @@ def post_process_text(text: str):
     host="0.0.0.0",
     port=9000,
 )
-def llm_generate(input: LLMParamsDoc):
+async def llm_generate(input: LLMParamsDoc):
     if logflag:
         logger.info(input)
-    llm_endpoint = os.getenv("TGI_LLM_ENDPOINT", "http://localhost:8080")
     llm = HuggingFaceEndpoint(
         endpoint_url=llm_endpoint,
         max_new_tokens=input.max_tokens,
@@ -54,9 +53,6 @@ def llm_generate(input: LLMParamsDoc):
     """
     PROMPT = PromptTemplate.from_template(templ)
     llm_chain = load_summarize_chain(llm=llm, prompt=PROMPT)
-
-    # Split text
-    text_splitter = CharacterTextSplitter()
     texts = text_splitter.split_text(input.query)
 
     # Create multiple documents
@@ -77,12 +73,15 @@ async def stream_generator():
 
         return StreamingResponse(stream_generator(), media_type="text/event-stream")
     else:
-        response = llm_chain.invoke(docs)
+        response = await llm_chain.ainvoke(docs)
         response = response["output_text"]
         if logflag:
             logger.info(response)
         return GeneratedDoc(text=response, prompt=input.query)
 
 
 if __name__ == "__main__":
+    llm_endpoint = os.getenv("TGI_LLM_ENDPOINT", "http://localhost:8080")
+    # Split text
+    text_splitter = CharacterTextSplitter()
     opea_microservices["opea_service@llm_faqgen"].start()

comps/llms/summarization/tgi/langchain/llm.py

@@ -33,10 +33,10 @@ def post_process_text(text: str):
     host="0.0.0.0",
     port=9000,
 )
-def llm_generate(input: LLMParamsDoc):
+async def llm_generate(input: LLMParamsDoc):
     if logflag:
         logger.info(input)
-    llm_endpoint = os.getenv("TGI_LLM_ENDPOINT", "http://localhost:8080")
+
     llm = HuggingFaceEndpoint(
         endpoint_url=llm_endpoint,
         max_new_tokens=input.max_tokens,
@@ -48,9 +48,6 @@ def llm_generate(input: LLMParamsDoc):
         streaming=input.streaming,
     )
     llm_chain = load_summarize_chain(llm=llm, chain_type="map_reduce")
-
-    # Split text
-    text_splitter = CharacterTextSplitter()
     texts = text_splitter.split_text(input.query)
 
     # Create multiple documents
@@ -71,12 +68,15 @@ async def stream_generator():
 
         return StreamingResponse(stream_generator(), media_type="text/event-stream")
     else:
-        response = llm_chain.invoke(docs)
+        response = await llm_chain.ainvoke(docs)
         response = response["output_text"]
         if logflag:
             logger.info(response)
         return GeneratedDoc(text=response, prompt=input.query)
 
 
 if __name__ == "__main__":
+    llm_endpoint = os.getenv("TGI_LLM_ENDPOINT", "http://localhost:8080")
+    # Split text
+    text_splitter = CharacterTextSplitter()
     opea_microservices["opea_service@llm_docsum"].start()

comps/llms/text-generation/ollama/langchain/llm.py

@@ -19,7 +19,7 @@
     host="0.0.0.0",
     port=9000,
 )
-def llm_generate(input: LLMParamsDoc):
+async def llm_generate(input: LLMParamsDoc):
     if logflag:
         logger.info(input)
     ollama = Ollama(
@@ -48,7 +48,7 @@ async def stream_generator():
 
         return StreamingResponse(stream_generator(), media_type="text/event-stream")
     else:
-        response = ollama.invoke(input.query)
+        response = await ollama.ainvoke(input.query)
         if logflag:
             logger.info(response)
         return GeneratedDoc(text=response, prompt=input.query)

comps/llms/text-generation/ray_serve/llm.py

@@ -38,7 +38,7 @@ def post_process_text(text: str):
     host="0.0.0.0",
     port=9000,
 )
-def llm_generate(input: LLMParamsDoc):
+async def llm_generate(input: LLMParamsDoc):
     llm_endpoint = os.getenv("RAY_Serve_ENDPOINT", "http://localhost:8080")
     llm_model = os.getenv("LLM_MODEL", "Llama-2-7b-chat-hf")
     if "/" in llm_model:
@@ -73,7 +73,7 @@ async def stream_generator():
 
         return StreamingResponse(stream_generator(), media_type="text/event-stream")
     else:
-        response = llm.invoke(input.query)
+        response = await llm.ainvoke(input.query)
         response = response.content
         return GeneratedDoc(text=response, prompt=input.query)
 

comps/llms/text-generation/vllm/langchain/llm.py

@@ -48,7 +48,7 @@ def post_process_text(text: str):
     host="0.0.0.0",
     port=9000,
 )
-def llm_generate(input: Union[LLMParamsDoc, ChatCompletionRequest, SearchedDoc]):
+async def llm_generate(input: Union[LLMParamsDoc, ChatCompletionRequest, SearchedDoc]):
     if logflag:
         logger.info(input)
 
@@ -102,7 +102,7 @@ async def stream_generator():
             return StreamingResponse(stream_generator(), media_type="text/event-stream")
 
         else:
-            response = llm.invoke(new_input.query, **parameters)
+            response = await llm.ainvoke(new_input.query, **parameters)
             if logflag:
                 logger.info(response)
 
@@ -153,7 +153,7 @@ async def stream_generator():
             return StreamingResponse(stream_generator(), media_type="text/event-stream")
 
         else:
-            response = llm.invoke(prompt, **parameters)
+            response = await llm.ainvoke(prompt, **parameters)
             if logflag:
                 logger.info(response)
 

comps/llms/text-generation/vllm/llama_index/llm.py

@@ -39,7 +39,7 @@ def post_process_text(text: str):
     host="0.0.0.0",
     port=9000,
 )
-def llm_generate(input: LLMParamsDoc):
+async def llm_generate(input: LLMParamsDoc):
     if logflag:
         logger.info(input)
     llm_endpoint = os.getenv("vLLM_ENDPOINT", "http://localhost:8008")
@@ -56,8 +56,8 @@ def llm_generate(input: LLMParamsDoc):
 
     if input.streaming:
 
-        def stream_generator():
-            for text in llm.stream_complete(input.query):
+        async def stream_generator():
+            async for text in llm.astream_complete(input.query):
                 output = text.text
                 yield f"data: {output}\n\n"
             if logflag:
@@ -66,7 +66,7 @@ def stream_generator():
 
         return StreamingResponse(stream_generator(), media_type="text/event-stream")
     else:
-        response = llm.complete(input.query).text
+        response = await llm.acomplete(input.query).text
         if logflag:
             logger.info(response)
         return GeneratedDoc(text=response, prompt=input.query)

comps/llms/text-generation/vllm/ray/llm.py

@@ -30,7 +30,7 @@
     host="0.0.0.0",
     port=9000,
 )
-def llm_generate(input: LLMParamsDoc):
+async def llm_generate(input: LLMParamsDoc):
     if logflag:
         logger.info(input)
     llm_endpoint = os.getenv("vLLM_RAY_ENDPOINT", "http://localhost:8006")
@@ -50,9 +50,9 @@ def llm_generate(input: LLMParamsDoc):
 
     if input.streaming:
 
-        def stream_generator():
+        async def stream_generator():
             chat_response = ""
-            for text in llm.stream(input.query):
+            for text in llm.astream(input.query):
                 text = text.content
                 chat_response += text
                 chunk_repr = repr(text.encode("utf-8"))
@@ -63,7 +63,7 @@ def stream_generator():
 
         return StreamingResponse(stream_generator(), media_type="text/event-stream")
     else:
-        response = llm.invoke(input.query)
+        response = await llm.ainvoke(input.query)
         response = response.content
         if logflag:
             logger.info(response)

comps/lvms/predictionguard/lvm.py

@@ -28,7 +28,7 @@ class LVMDoc(BaseDoc):
     output_datatype=TextDoc,
 )
 @register_statistics(names=["opea_service@lvm_predictionguard"])
-async def lvm(request: LVMDoc) -> TextDoc:
+def lvm(request: LVMDoc) -> TextDoc:
     start = time.time()
 
     # make a request to the Prediction Guard API using the LlaVa model

comps/retrievers/milvus/langchain/retriever_milvus.py

@@ -67,7 +67,7 @@ def empty_embedding() -> List[float]:
     port=7000,
 )
 @register_statistics(names=["opea_service@retriever_milvus"])
-def retrieve(input: EmbedDoc) -> SearchedDoc:
+async def retrieve(input: EmbedDoc) -> SearchedDoc:
     if logflag:
         logger.info(input)
     vector_db = Milvus(
@@ -77,20 +77,20 @@ def retrieve(input: EmbedDoc) -> SearchedDoc:
     )
     start = time.time()
     if input.search_type == "similarity":
-        search_res = vector_db.similarity_search_by_vector(embedding=input.embedding, k=input.k)
+        search_res = await vector_db.asimilarity_search_by_vector(embedding=input.embedding, k=input.k)
     elif input.search_type == "similarity_distance_threshold":
         if input.distance_threshold is None:
             raise ValueError("distance_threshold must be provided for " + "similarity_distance_threshold retriever")
-        search_res = vector_db.similarity_search_by_vector(
+        search_res = await vector_db.asimilarity_search_by_vector(
             embedding=input.embedding, k=input.k, distance_threshold=input.distance_threshold
         )
     elif input.search_type == "similarity_score_threshold":
-        docs_and_similarities = vector_db.similarity_search_with_relevance_scores(
+        docs_and_similarities = await vector_db.asimilarity_search_with_relevance_scores(
             query=input.text, k=input.k, score_threshold=input.score_threshold
         )
         search_res = [doc for doc, _ in docs_and_similarities]
     elif input.search_type == "mmr":
-        search_res = vector_db.max_marginal_relevance_search(
+        search_res = await vector_db.amax_marginal_relevance_search(
             query=input.text, k=input.k, fetch_k=input.fetch_k, lambda_mult=input.lambda_mult
         )
     searched_docs = []

comps/retrievers/multimodal/redis/langchain/retriever_redis.py

@@ -34,7 +34,7 @@
     port=7000,
 )
 @register_statistics(names=["opea_service@multimodal_retriever_redis"])
-def retrieve(
+async def retrieve(
     input: Union[EmbedMultimodalDoc, RetrievalRequest, ChatCompletionRequest]
 ) -> Union[SearchedMultimodalDoc, RetrievalResponse, ChatCompletionRequest]:
 
@@ -45,20 +45,20 @@ def retrieve(
     else:
         # if the Redis index has data, perform the search
         if input.search_type == "similarity":
-            search_res = vector_db.similarity_search_by_vector(embedding=input.embedding, k=input.k)
+            search_res = await vector_db.asimilarity_search_by_vector(embedding=input.embedding, k=input.k)
         elif input.search_type == "similarity_distance_threshold":
             if input.distance_threshold is None:
                 raise ValueError("distance_threshold must be provided for " + "similarity_distance_threshold retriever")
-            search_res = vector_db.similarity_search_by_vector(
+            search_res = await vector_db.asimilarity_search_by_vector(
                 embedding=input.embedding, k=input.k, distance_threshold=input.distance_threshold
             )
         elif input.search_type == "similarity_score_threshold":
-            docs_and_similarities = vector_db.similarity_search_with_relevance_scores(
+            docs_and_similarities = await vector_db.asimilarity_search_with_relevance_scores(
                 query=input.text, k=input.k, score_threshold=input.score_threshold
             )
             search_res = [doc for doc, _ in docs_and_similarities]
         elif input.search_type == "mmr":
-            search_res = vector_db.max_marginal_relevance_search(
+            search_res = await vector_db.amax_marginal_relevance_search(
                 query=input.text, k=input.k, fetch_k=input.fetch_k, lambda_mult=input.lambda_mult
             )
         else:

comps/retrievers/neo4j/langchain/retriever_neo4j.py

@@ -40,7 +40,7 @@
     port=7000,
 )
 @register_statistics(names=["opea_service@retriever_neo4j"])
-def retrieve(
+async def retrieve(
     input: Union[EmbedDoc, RetrievalRequest, ChatCompletionRequest]
 ) -> Union[SearchedDoc, RetrievalResponse, ChatCompletionRequest]:
     if logflag:
@@ -54,20 +54,22 @@ def retrieve(
         query = input.input
 
     if input.search_type == "similarity":
-        search_res = vector_db.similarity_search_by_vector(embedding=input.embedding, query=input.text, k=input.k)
+        search_res = await vector_db.asimilarity_search_by_vector(
+            embedding=input.embedding, query=input.text, k=input.k
+        )
     elif input.search_type == "similarity_distance_threshold":
         if input.distance_threshold is None:
             raise ValueError("distance_threshold must be provided for " + "similarity_distance_threshold retriever")
-        search_res = vector_db.similarity_search_by_vector(
+        search_res = await vector_db.asimilarity_search_by_vector(
             embedding=input.embedding, query=input.text, k=input.k, distance_threshold=input.distance_threshold
         )
     elif input.search_type == "similarity_score_threshold":
-        docs_and_similarities = vector_db.similarity_search_with_relevance_scores(
+        docs_and_similarities = await vector_db.asimilarity_search_with_relevance_scores(
             query=input.text, k=input.k, score_threshold=input.score_threshold
         )
         search_res = [doc for doc, _ in docs_and_similarities]
     elif input.search_type == "mmr":
-        search_res = vector_db.max_marginal_relevance_search(
+        search_res = await vector_db.amax_marginal_relevance_search(
             query=input.text, k=input.k, fetch_k=input.fetch_k, lambda_mult=input.lambda_mult
         )
     else:

comps/retrievers/pgvector/langchain/retriever_pgvector.py

@@ -34,11 +34,11 @@
     port=PORT,
 )
 @register_statistics(names=["opea_service@retriever_pgvector"])
-def retrieve(input: EmbedDoc) -> SearchedDoc:
+async def retrieve(input: EmbedDoc) -> SearchedDoc:
     if logflag:
         logger.info(input)
     start = time.time()
-    search_res = vector_db.similarity_search_by_vector(embedding=input.embedding)
+    search_res = await vector_db.asimilarity_search_by_vector(embedding=input.embedding)
     searched_docs = []
     for r in search_res:
         searched_docs.append(TextDoc(text=r.page_content))

comps/retrievers/redis/langchain/requirements.txt

@@ -2,6 +2,7 @@ docarray[full]
 easyocr
 fastapi
 langchain_community
+langchain_huggingface
 opentelemetry-api
 opentelemetry-exporter-otlp
 opentelemetry-sdk