llama-stack-mirror/llama_stack/providers/utils
Akram Ben Aissi 1970b4aa4b
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fix: improve model availability checks: Allows use of unavailable models on startup (#3717)
- Allows use of unavailable models on startup
- Add has_model method to ModelsRoutingTable for checking pre-registered
models
- Update check_model_availability to check model_store before provider
APIs

# What does this PR do?
<!-- Provide a short summary of what this PR does and why. Link to
relevant issues if applicable. -->

<!-- If resolving an issue, uncomment and update the line below -->
<!-- Closes #[issue-number] -->

## Test Plan
<!-- Describe the tests you ran to verify your changes with result
summaries. *Provide clear instructions so the plan can be easily
re-executed.* -->


Start llama stack and point unavailable vLLM

```
VLLM_URL=https://my-unavailable-vllm/v1 MILVUS_DB_PATH=./milvus.db INFERENCE_MODEL=vllm uv run --with llama-stack llama stack build --distro starter --image-type venv --run
```

llama stack will start without crashing but only notifying error. 

```


         - provider_id: rag-runtime
           toolgroup_id: builtin::rag
         vector_dbs: []
         version: 2

INFO     2025-10-07 06:40:41,804 llama_stack.providers.utils.inference.inference_store:74 inference: Write queue disabled for SQLite to avoid concurrency issues
INFO     2025-10-07 06:40:42,066 llama_stack.providers.utils.responses.responses_store:96 openai_responses: Write queue disabled for SQLite to avoid concurrency issues
ERROR    2025-10-07 06:40:58,882 llama_stack.providers.utils.inference.openai_mixin:436 providers::utils: VLLMInferenceAdapter.list_provider_model_ids() failed with: Request timed out.
WARNING  2025-10-07 06:40:58,883 llama_stack.core.routing_tables.models:36 core::routing_tables: Model refresh failed for provider vllm: Request timed out.
[...]
INFO     2025-10-07 06:40:59,036 uvicorn.error:216 uncategorized: Uvicorn running on http://['::', '0.0.0.0']:8321 (Press CTRL+C to quit)
INFO     2025-10-07 06:41:04,064 openai._base_client:1618 uncategorized: Retrying request to /models in 0.398814 seconds
INFO     2025-10-07 06:41:09,497 openai._base_client:1618 uncategorized: Retrying request to /models in 0.781908 seconds
ERROR    2025-10-07 06:41:15,282 llama_stack.providers.utils.inference.openai_mixin:436 providers::utils: VLLMInferenceAdapter.list_provider_model_ids() failed with: Request timed out.
WARNING  2025-10-07 06:41:15,283 llama_stack.core.routing_tables.models:36 core::routing_tables: Model refresh failed for provider vllm: Request timed out.
```
2025-10-07 14:27:24 -04:00
..
bedrock chore: use remoteinferenceproviderconfig for remote inference providers (#3668) 2025-10-03 08:48:42 -07:00
common chore(rename): move llama_stack.distribution to llama_stack.core (#2975) 2025-07-30 23:30:53 -07:00
datasetio chore(misc): make tests and starter faster (#3042) 2025-08-05 14:55:05 -07:00
files fix(expires_after): make sure multipart/form-data is properly parsed (#3612) 2025-09-30 16:14:03 -04:00
inference fix: improve model availability checks: Allows use of unavailable models on startup (#3717) 2025-10-07 14:27:24 -04:00
kvstore chore: prune mypy exclude list (#3561) 2025-09-26 11:44:43 -04:00
memory feat: Enabling Annotations in Responses (#3698) 2025-10-07 14:00:56 -04:00
responses fix: responses <> chat completion input conversion (#3645) 2025-10-02 16:01:08 -07:00
scoring chore: enable pyupgrade fixes (#1806) 2025-05-01 14:23:50 -07:00
sqlstore feat: Add OpenAI Conversations API (#3429) 2025-10-03 08:47:18 -07:00
telemetry feat: use FIPS validated CSPRNG for telemetry (#3554) 2025-09-26 11:17:25 +02:00
tools feat(tools)!: substantial clean up of "Tool" related datatypes (#3627) 2025-10-02 15:12:03 -07:00
vector_io feat: migrate to FIPS-validated cryptographic algorithms (#3423) 2025-09-12 11:18:19 +02:00
__init__.py API Updates (#73) 2024-09-17 19:51:35 -07:00
pagination.py chore(refact): move paginate_records fn outside of datasetio (#2137) 2025-05-12 10:56:14 -07:00
scheduler.py refactor(logging): rename llama_stack logger categories (#3065) 2025-08-21 17:31:04 -07:00