infrastructure-resource-cleanup-unclosed-client-sessions-and-connectors-warnings-w-f8d1372b

THEN Implement proper cleanup for the OpenSearch client in OpensearchVectorClient. Use a try...finally block to ensure the client is closed after operations, or override the destructor to close the client. For async usage, explicitly call client._os_async_client.close() when the session ends.

import asyncio
from llama_index.vector_stores.opensearch import OpensearchVectorStore
from llama_index.vector_stores.opensearch.client import OpensearchVectorClient

client = OpensearchVectorClient(endpoint='localhost:9200', index='my_index', dim=3)
try:
    store = OpensearchVectorStore(client)
    # use store here
finally:
    # sync close (if applicable) or for async:
    # asyncio.get_event_loop().run_until_complete(client._os_async_client.close())
    client._os_client.close()  # adjust based on actual API