RediSearch Not avaialble.

[parshva-softmaxai]

Hello!

I'm trying to use the GCP Memorystore instance on my Local Mac using port forwarding as mentioned in the documentation.

The problem is I want to use it for Vector search and after I connect it using python code I get error for using the RedisVectorStore
I tried installing the redis-stack on my local machine and it still doesn't work.

To Solve this problem I tried running Redis Stack locally using Docker, which includes RediSearch:

docker run -d -p 6379:6379 redis/redis-stack-server

Environment details

• OS type and version:
• Python version: 3.11.10
• pip version: 24.2
• langchain-google-memorystore-redis version: 0.2.0

Steps to reproduce

1. Creating the MemoryStore Instance and following the steps to connect to the local using Port Forwarding documentation.
2. Download the vector_store.ipynb
3. Run the Code shell in order to connect to the Redis Instance and Create the RedisVectorStore with the index_config.

Code example

import redis
from langchain_google_memorystore_redis import RedisVectorStore
from langchain_google_memorystore_redis import (
    DistanceStrategy,
    HNSWConfig,
    RedisVectorStore,
)

# Connect to a Memorystore for Redis instance
redis_client = redis.from_url("redis://127.0.0.1:6379")
# Configure HNSW index with descriptive parameters
index_config = HNSWConfig(
    name="livekit-vectorstore", distance_strategy=DistanceStrategy.COSINE, vector_size=128
)

# Initialize/create the vector store index
RedisVectorStore.init_index(client=redis_client, index_config=index_config)

Stack trace

---------------------------------------------------------------------------
ResponseError                             Traceback (most recent call last)
Cell In[23], [line 7](vscode-notebook-cell:?execution_count=23&line=7)
      [2](vscode-notebook-cell:?execution_count=23&line=2) index_config = HNSWConfig(
      [3](vscode-notebook-cell:?execution_count=23&line=3)     name="livekit-vectorstore", distance_strategy=DistanceStrategy.COSINE, vector_size=128
      [4](vscode-notebook-cell:?execution_count=23&line=4) )
      [6](vscode-notebook-cell:?execution_count=23&line=6) # Initialize/create the vector store index
----> [7](vscode-notebook-cell:?execution_count=23&line=7) RedisVectorStore.init_index(client=redis_client, index_config=index_config)

File ~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/langchain_google_memorystore_redis/vectorstore.py:342, in RedisVectorStore.init_index(client, index_config)
    [333](https://file+.vscode-resource.vscode-cdn.net/Users/parshva/SoftmaxAI/Livekit_Redis/~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/langchain_google_memorystore_redis/vectorstore.py:333)     command = (
    [334](https://file+.vscode-resource.vscode-cdn.net/Users/parshva/SoftmaxAI/Livekit_Redis/~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/langchain_google_memorystore_redis/vectorstore.py:334)         f"FT.CREATE {index_config.name} ON HASH PREFIX 1 {RedisVectorStore.get_key_prefix(index_config.name)} "
    [335](https://file+.vscode-resource.vscode-cdn.net/Users/parshva/SoftmaxAI/Livekit_Redis/~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/langchain_google_memorystore_redis/vectorstore.py:335)         f"SCHEMA {index_config.field_name} VECTOR {index_config.type} "
   (...)
    [338](https://file+.vscode-resource.vscode-cdn.net/Users/parshva/SoftmaxAI/Livekit_Redis/~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/langchain_google_memorystore_redis/vectorstore.py:338)         f"TYPE {index_config.data_type} "
    [339](https://file+.vscode-resource.vscode-cdn.net/Users/parshva/SoftmaxAI/Livekit_Redis/~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/langchain_google_memorystore_redis/vectorstore.py:339)     )
    [341](https://file+.vscode-resource.vscode-cdn.net/Users/parshva/SoftmaxAI/Livekit_Redis/~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/langchain_google_memorystore_redis/vectorstore.py:341) try:
--> [342](https://file+.vscode-resource.vscode-cdn.net/Users/parshva/SoftmaxAI/Livekit_Redis/~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/langchain_google_memorystore_redis/vectorstore.py:342)     client.execute_command(command)
    [343](https://file+.vscode-resource.vscode-cdn.net/Users/parshva/SoftmaxAI/Livekit_Redis/~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/langchain_google_memorystore_redis/vectorstore.py:343) except redis.exceptions.ResponseError as e:
    [344](https://file+.vscode-resource.vscode-cdn.net/Users/parshva/SoftmaxAI/Livekit_Redis/~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/langchain_google_memorystore_redis/vectorstore.py:344)     if re.match(r"Redis module key \w+ already exists", str(e)):

File ~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/redis/client.py:548, in Redis.execute_command(self, *args, **options)
    [545](https://file+.vscode-resource.vscode-cdn.net/Users/parshva/SoftmaxAI/Livekit_Redis/~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/redis/client.py:545) conn = self.connection or pool.get_connection(command_name, **options)
    [547](https://file+.vscode-resource.vscode-cdn.net/Users/parshva/SoftmaxAI/Livekit_Redis/~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/redis/client.py:547) try:
--> [548](https://file+.vscode-resource.vscode-cdn.net/Users/parshva/SoftmaxAI/Livekit_Redis/~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/redis/client.py:548)     return conn.retry.call_with_retry(
...
--> [536](https://file+.vscode-resource.vscode-cdn.net/Users/parshva/SoftmaxAI/Livekit_Redis/~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/redis/connection.py:536)         raise response
    [537](https://file+.vscode-resource.vscode-cdn.net/Users/parshva/SoftmaxAI/Livekit_Redis/~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/redis/connection.py:537)     finally:
    [538](https://file+.vscode-resource.vscode-cdn.net/Users/parshva/SoftmaxAI/Livekit_Redis/~/SoftmaxAI/Livekit_Redis/.conda/lib/python3.11/site-packages/redis/connection.py:538)         del response  # avoid creating ref cycles

ResponseError: unknown command 'FT.CREATE', with args beginning with: 'livekit-vectorstore' 'ON' 'HASH' 'PREFIX' '1' 'livekit-vectorstore' 'SCHEMA' 'vector' 'VECTOR' 'HNSW' '14' 'TYPE' 'FLOAT32' 'DIM'

Thanks!

[PingXie]

ResponseError: unknown command 'FT.CREATE', with args beginning with: 'livekit-vectorstore' 'ON' 'HASH' 'PREFIX' '1' 'livekit-vectorstore' 'SCHEMA' 'vector' 'VECTOR' 'HNSW' '14' 'TYPE' 'FLOAT32' 'DIM'

Can you check the Redis engine version of your Memorystore instance? Judging by the error above, it looks like you are using a Redis version older than 7.2.