Sql stores now share a single SqlAlchemySqlStoreImpl per backend, and kvstore_impl caches instances per (backend, namespace). This avoids spawning multiple SQLite connections for the same file, reducing lock contention and aligning the cache story for all backends.
Added an async upsert API (with SQLite/Postgres dialect inserts) and routed it through AuthorizedSqlStore, then switched conversations and responses to call it. Using native ON CONFLICT DO UPDATE eliminates the insert-then-update retry window that previously caused long WAL lock retries.
Introduced an opt-in conversation stress test that mirrors the recorded prompts from test_conversation_multi_turn_and_streaming while fanning them out across many threads. This gives us a fast local way to hammer the conversations/responses sync path when investigating lockups.
# What does this PR do?
Initial implementation for `Conversations` and `ConversationItems` using
`AuthorizedSqlStore` with endpoints to:
- CREATE
- UPDATE
- GET/RETRIEVE/LIST
- DELETE
Set `level=LLAMA_STACK_API_V1`.
NOTE: This does not currently incorporate changes for Responses, that'll
be done in a subsequent PR.
Closes https://github.com/llamastack/llama-stack/issues/3235
## Test Plan
- Unit tests
- Integration tests
Also comparison of [OpenAPI spec for OpenAI
API](https://github.com/openai/openai-openapi/tree/manual_spec)
```bash
oasdiff breaking --fail-on ERR docs/static/llama-stack-spec.yaml https://raw.githubusercontent.com/openai/openai-openapi/refs/heads/manual_spec/openapi.yaml --strip-prefix-base "/v1/openai/v1" \
--match-path '(^/v1/openai/v1/conversations.*|^/conversations.*)'
```
Note I still have some uncertainty about this, I borrowed this info from
@cdoern on https://github.com/llamastack/llama-stack/pull/3514 but need
to spend more time to confirm it's working, at the moment it suggests it
does.
UPDATE on `oasdiff`, I investigated the OpenAI spec further and it looks
like currently the spec does not list Conversations, so that analysis is
useless. Noting for future reference.
---------
Signed-off-by: Francisco Javier Arceo <farceo@redhat.com>
# What does this PR do?
add the ability to use inequalities in the where clause of the sqlstore.
this is infrastructure for files expiration.
## Test Plan
unit tests
# What does this PR do?
previously, developers who ran `./scripts/unit-tests.sh` would get
`asyncio-mode=auto`, which meant `@pytest.mark.asyncio` and
`@pytest_asyncio.fixture` were redundent. developers who ran `pytest`
directly would get pytest's default (strict mode), would run into errors
leading them to add `@pytest.mark.asyncio` / `@pytest_asyncio.fixture`
to their code.
with this change -
- `asyncio_mode=auto` is included in `pyproject.toml` making behavior
consistent for all invocations of pytest
- removes all redundant `@pytest_asyncio.fixture` and
`@pytest.mark.asyncio`
- for good measure, requires `pytest>=8.4` and `pytest-asyncio>=1.0`
## Test Plan
- `./scripts/unit-tests.sh`
- `uv run pytest tests/unit`
