asyncio: Unclosed connector connections while invoking adk agent while running the evaluations

[supraja-yarramsetti-efx]

Processing question 1/6 for response ━━━━━━━━━━━━╺━━━━━━━━━━━━━━━━━━━━━━━━━━━ 30% -:--:--

asyncio: Unclosed connector
connections: ['deque([(<aiohttp.client_proto.ResponseHandler object at 0x000001D68B04C050>, 80801.031)])']
connector: <aiohttp.connector.TCPConnector object at 0x000001D68AF83A40>

uv pip install google-genai==1.47.0
i have this version

uv pip install google-genai==1.36.0
I this version this warning is not coming asyncio: Unclosed connector

[supraja-yarramsetti-efx]

Hi @klateefa

could you please check help me avoid this warning in this version google-genai==1.47.0

[hangfei]

Please provide minimal code to reproduce this.

[supraja-yarramsetti-efx]

When running a number of evals together we are seeing errors stemming from the Google ADK package.

Things like this:

ERROR asyncio:base_events.py:1879 Unclosed client session
client_session: <aiohttp.client.ClientSession object at 0x7f1cc2d334d0>
ERROR asyncio:base_events.py:1879 Unclosed connector
connections: ['deque([(<aiohttp.client_proto.ResponseHandler object at 0x7f1cc08d5b50>, 446.318275963)])']
connector: <aiohttp.connector.TCPConnector object at 0x7f1cc2d33750>
ERROR asyncio:base_events.py:1879 Unclosed client session
client_session: <aiohttp.client.ClientSession object at 0x7f1cc2d339d0>
ERROR asyncio:base_events.py:1879 Unclosed connector
connections: ['deque([(<aiohttp.client_proto.ResponseHandler object at 0x7f1cc08d5b50>, 459.80620861)])']
connector: <aiohttp.connector.TCPConnector object at 0x7f1cc2d32ad0>
ERROR asyncio:base_events.py:1879 Unclosed client session
client_session: <aiohttp.client.ClientSession object at 0x7f1cc2d32490>

To Reproduce

I am not sure the best way to reproduce this but it happens when we are running evals, our code uses tools that call out to other APIs - I am not sure if that causes an issue.

Process the message through the agent using runner.run_async

        async for event in self.runner.run_async(
            user_id=user_id, session_id=self.shared_session_id, new_message=content
        ):
            # Debug: Log event structure to understand what we're getting
            logger.debug(f"Processing event type: {type(event).__name__}")
            logger.debug(f"Event author: {getattr(event, 'author', 'unknown')}")

            # Extract text from final response events
            if event.content and event.content.parts:
                for part in event.content.parts:
                    # Extract response text
                    if hasattr(part, "text") and part.text and part.text.strip():
                        response_text += part.text.strip() + "\n"
                        logger.debug(f"Added text from event: {part.text[:100]}...")

while running this for with dataset having questions invoking the adk agent to get the response getting above warnings

Currrent setup:
uv pip install google-genai==1.47.0

I this version this warning is not coming asyncio: Unclosed connector
uv pip install google-genai==1.36.0

[surajksharma07]

@supraja-yarramsetti-efx The unclosed connector warnings come from google-genai 1.47.0's internal aiohttp usage, not from ADK itself.

Downgrade to google-genai 1.36.0 as a workaround: pip install google-genai==1.36.0.

This resolves the warnings completely while we investigate if newer google-genai versions have fixed this.

Could you share a minimal agent code that reproduces this so we can test with different google-genai versions?

[adk-bot]

This issue has been automatically marked as stale because it has not had recent activity for 7 days after a maintainer requested clarification. It will be closed if no further activity occurs within 7 days.