Commit graph

4 commits

Author SHA1 Message Date
Sébastien Han
7d9adf22ad
refactor: move missing tests to test directory (#1892)
Move the test_context.py under the main tests directory, and fix the
code.

The problem was that the function captures the initial values of the
context variables and then restores those same initial values before
each iteration. This means that any modifications made to the context
variables during iteration are lost when the next iteration starts.

Error was:

```
====================================================== FAILURES =======================================================
______________________________________ test_preserve_contexts_across_event_loops ______________________________________

    @pytest.mark.asyncio
    async def test_preserve_contexts_across_event_loops():
        """
        Test that context variables are preserved across event loop boundaries with nested generators.
        This simulates the real-world scenario where:
        1. A new event loop is created for each streaming request
        2. The async generator runs inside that loop
        3. There are multiple levels of nested generators
        4. Context needs to be preserved across these boundaries
        """
        # Create context variables
        request_id = ContextVar("request_id", default=None)
        user_id = ContextVar("user_id", default=None)

        # Set initial values

        # Results container to verify values across thread boundaries
        results = []

        # Inner-most generator (level 2)
        async def inner_generator():
            # Should have the context from the outer scope
            yield (1, request_id.get(), user_id.get())

            # Modify one context variable
            user_id.set("user-modified")

            # Should reflect the modification
            yield (2, request_id.get(), user_id.get())

        # Middle generator (level 1)
        async def middle_generator():
            inner_gen = inner_generator()

            # Forward the first yield from inner
            item = await inner_gen.__anext__()
            yield item

            # Forward the second yield from inner
            item = await inner_gen.__anext__()
            yield item

            request_id.set("req-modified")

            # Add our own yield with both modified variables
            yield (3, request_id.get(), user_id.get())

        # Function to run in a separate thread with a new event loop
        def run_in_new_loop():
            # Create a new event loop for this thread
            loop = asyncio.new_event_loop()
            asyncio.set_event_loop(loop)

            try:
                # Outer generator (runs in the new loop)
                async def outer_generator():
                    request_id.set("req-12345")
                    user_id.set("user-6789")
                    # Wrap the middle generator
                    wrapped_gen = preserve_contexts_async_generator(middle_generator(), [request_id, user_id])

                    # Process all items from the middle generator
                    async for item in wrapped_gen:
                        # Store results for verification
                        results.append(item)

                # Run the outer generator in the new loop
                loop.run_until_complete(outer_generator())
            finally:
                loop.close()

        # Run the generator chain in a separate thread with a new event loop
        with ThreadPoolExecutor(max_workers=1) as executor:
            future = executor.submit(run_in_new_loop)
            future.result()  # Wait for completion

        # Verify the results
        assert len(results) == 3

        # First yield should have original values
        assert results[0] == (1, "req-12345", "user-6789")

        # Second yield should have modified user_id
        assert results[1] == (2, "req-12345", "user-modified")

        # Third yield should have both modified values
>       assert results[2] == (3, "req-modified", "user-modified")
E       AssertionError: assert (3, 'req-modified', 'user-6789') == (3, 'req-modified', 'user-modified')
E
E         At index 2 diff: 'user-6789' != 'user-modified'
E
E         Full diff:
E           (
E               3,
E               'req-modified',
E         -     'user-modified',
E         +     'user-6789',
E           )

tests/unit/distribution/test_context.py:155: AssertionError
-------------------------------------------------- Captured log call --------------------------------------------------
ERROR    asyncio:base_events.py:1758 Task was destroyed but it is pending!
task: <Task pending name='Task-7' coro=<<async_generator_athrow without __name__>()>>
================================================== warnings summary ===================================================
.venv/lib/python3.10/site-packages/pydantic/fields.py:1042
  /Users/leseb/Documents/AI/llama-stack/.venv/lib/python3.10/site-packages/pydantic/fields.py:1042: PydanticDeprecatedSince20: Using extra keyword arguments on `Field` is deprecated and will be removed. Use `json_schema_extra` instead. (Extra keys: 'contentEncoding'). Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.10/migration/
    warn(

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
=============================================== short test summary info ===============================================
FAILED tests/unit/distribution/test_context.py::test_preserve_contexts_across_event_loops - AssertionError: assert (3, 'req-modified', 'user-6789') == (3, 'req-modified', 'user-modified')

  At index 2 diff: 'user-6789' != 'user-modified'

  Full diff:
    (
        3,
        'req-modified',
  -     'user-modified',
  +     'user-6789',
    )
```

[//]: # (## Documentation)

Signed-off-by: Sébastien Han <seb@redhat.com>
2025-04-08 18:54:00 -07:00
Hardik Shah
cb2a9784ab
fix: multiple issues with getting_started notebook (#1795)
Fixes multiple issues 

1. llama stack build of dependencies was breaking with incompatible
numpy / pandas when importing datasets

Moved the notebook to start a local server instead of using library as a
client. This way the setup is cleaner since its all contained and by
using `uv run --with` we can test both the server setup process too in
CI and release time.

2. The change to [1] surfaced some other issues 
- running `llama stack run` was defaulting to conda env name 
- provider data was not being managed properly 
- Some notebook cells (telemetry for evals) were not updated with latest
changes

Fixed all the issues and update the notebook. 

### Test 

1. Manually run it all in local env 
2. `pytest -v -s --nbval-lax docs/getting_started.ipynb`
2025-03-26 10:59:12 -07:00
Dinesh Yeduguru
0fdb15bcc7
fix: fix build error in context.py (#1595)
# What does this PR do?
This fixes the build error


## Test Plan
pre-commit run --all-files
check for merge
conflicts................................................Passed
trim trailing
whitespace.................................................Passed
check for added large
files..............................................Passed
fix end of
files.........................................................Passed
Insert license in
comments...............................................Passed

ruff.....................................................................Passed

ruff-format..............................................................Passed

blacken-docs.............................................................Passed

uv-lock..................................................................Passed

uv-export................................................................Passed

mypy.....................................................................Passed
Distribution Template
Codegen............................................Passed
2025-03-12 13:26:23 -07:00
Dinesh Yeduguru
58d08d100e
feat: Add back inference metrics and preserve context variables across asyncio boundary (#1552)
# What does this PR do?
This PR adds back the changes in #1300  which were reverted in  #1476 .

It also adds logic to preserve context variables across asyncio
boundary. this is needed with the library client since the async
generator logic yields control to code outside the event loop, and on
resuming, does not have the same context as before and this requires
preserving the context vars.

address #1477 
## Test Plan


```
 curl --request POST \
  --url http://localhost:8321/v1/inference/chat-completion \
  --header 'content-type: application/json' \
  --data '{
  "model_id": "meta-llama/Llama-3.1-70B-Instruct",
  "messages": [
    {
      "role": "user",
      "content": {
        "type": "text",
        "text": "where do humans live"
      }
    }
  ],
  "stream": false
}' | jq .

{
  "metrics": [
    {
      "trace_id": "kCZwO3tyQC-FuAGb",
      "span_id": "bsP_5a5O",
      "timestamp": "2025-03-11T16:47:38.549084Z",
      "attributes": {
        "model_id": "meta-llama/Llama-3.1-70B-Instruct",
        "provider_id": "fireworks"
      },
      "type": "metric",
      "metric": "prompt_tokens",
      "value": 10,
      "unit": "tokens"
    },
    {
      "trace_id": "kCZwO3tyQC-FuAGb",
      "span_id": "bsP_5a5O",
      "timestamp": "2025-03-11T16:47:38.549449Z",
      "attributes": {
        "model_id": "meta-llama/Llama-3.1-70B-Instruct",
        "provider_id": "fireworks"
      },
      "type": "metric",
      "metric": "completion_tokens",
      "value": 369,
      "unit": "tokens"
    },
    {
      "trace_id": "kCZwO3tyQC-FuAGb",
      "span_id": "bsP_5a5O",
      "timestamp": "2025-03-11T16:47:38.549457Z",
      "attributes": {
        "model_id": "meta-llama/Llama-3.1-70B-Instruct",
        "provider_id": "fireworks"
      },
      "type": "metric",
      "metric": "total_tokens",
      "value": 379,
      "unit": "tokens"
    }
  ],
  "completion_message": {
    "role": "assistant",
    "content": "Humans live on the planet Earth, specifically on its landmasses and in its oceans. Here's a breakdown of where humans live:\n\n1. **Continents:** Humans inhabit all seven continents:\n\t* Africa\n\t* Antarctica ( temporary residents, mostly scientists and researchers)\n\t* Asia\n\t* Australia\n\t* Europe\n\t* North America\n\t* South America\n2. **Countries:** There are 196 countries recognized by the United Nations, and humans live in almost all of them.\n3. **Cities and towns:** Many humans live in urban areas, such as cities and towns, which are often located near coastlines, rivers, or other bodies of water.\n4. **Rural areas:** Some humans live in rural areas, such as villages, farms, and countryside.\n5. **Islands:** Humans inhabit many islands around the world, including those in the Pacific, Indian, and Atlantic Oceans.\n6. **Mountains and highlands:** Humans live in mountainous regions, such as the Himalayas, the Andes, and the Rocky Mountains.\n7. **Deserts:** Some humans live in desert regions, such as the Sahara, the Mojave, and the Atacama.\n8. **Coastal areas:** Many humans live in coastal areas, such as beaches, ports, and coastal cities.\n9. **Underwater habitats:** A few humans live in underwater habitats, such as research stations and submarines.\n10. **Space:** A small number of humans have lived in space, including astronauts on the International Space Station and those who have visited the Moon.\n\nOverall, humans can be found living in almost every environment on Earth, from the frozen tundra to the hottest deserts, and from the highest mountains to the deepest oceans.",
    "stop_reason": "end_of_turn",
    "tool_calls": []
  },
  "logprobs": null
}

```

Orignal repro no longer showing any error:
```
LLAMA_STACK_DISABLE_VERSION_CHECK=true llama stack run ~/.llama/distributions/fireworks/fireworks-run.yaml
python -m examples.agents.e2e_loop_with_client_tools localhost 8321
```

client logs:
https://gist.github.com/dineshyv/047c7e87b18a5792aa660e311ea53166
server logs:
https://gist.github.com/dineshyv/97a2174099619e9916c7c490be26e559
2025-03-12 12:01:03 -07:00