Commit graph

6 commits

Author SHA1 Message Date
yujonglee
7b60fd061a
refactor(rust): adopt one error discipline across litellm-rust with source chains and Report (#48042)
* build(rust): upgrade reqwest to 0.13 and move MCP out of litellm-http

The workspace moves to reqwest 0.13, so litellm-http no longer carries a
second reqwest just for rmcp. The mcp feature, its pool and its proxy
conversion go away, and the gateway hands rmcp a pooled NoRedirect client
that already carries the TLS, proxy and timeout settings

The Client test helpers collapse into for_test, a no-redirect client
without TLS or proxy settings, and wrap_for_test for the few tests that
need a hand-built reqwest client

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* fix(http): honor transport settings for Rust WebSockets

The Responses WebSocket connected through tokio-tungstenite with its own
native-roots TLS, so it ignored the configured CA bundle, verify flag,
client certificate, proxies and timeouts. The handshake now goes through
a pooled reqwest client (ClientVariant::WebSocket, HTTP/1.1, no
redirects) and upgrades the response, so it shares the settings every
other outbound request uses

The upgrade response is checked for the Sec-WebSocket-Accept key, the
Upgrade and Connection headers and a subprotocol that was offered

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* refactor(http): build outbound requests as reqwest::Request

OutboundRequest was a hand-rolled copy of reqwest::Request. Routes now build
a reqwest::Request directly and RequestSigner reads the body bytes back out
of it, so the signer still covers exactly what is sent. SigV4 signing moves
onto HeaderMap and takes the method, which drops the BTreeMap plumbing and
the header casing table

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* refactor(http): make litellm_http::Error the one opaque error

transport::Error and media::Error fold into litellm_http::Error, an
Arc<Repr> newtype whose private variants keep the typed reqwest, io,
rustls and tungstenite causes and own every message. Callers can no
longer build an error with a message of their own. They ask through
dispatched, is_request, status, upstream_response and tls_source

One From<reqwest::Error> now classifies connect, network and timeout
and strips the URL. The WebSocket handshake reports each failed check
as its own variant and owns its connect timeout. OCR drops the media
variants it mirrored, and inference::Error maps a header the signer
computes to Unsupported for every route, not only chat

The error rules move out of AGENTS.md into the rust-error skill, which
also records the decisions behind this design

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* docs(rust): split rust-error skill into thin SKILL.md with references

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* refactor(rust-error): render causes once and ask predicates at the boundaries

The four WebSocket handshake variants collapse into Handshake(HandshakeFault), and media download failures no longer answer dispatched() since they happen before the provider call

ErrorDetail in llms and auth-types, the inference error and the OCR error now store their cause in a field named cause with no #[source], so to_string() carries it exactly once and source() is None. Tests that walked the chain now destructure the variant and downcast the cause

The gateway asks is_unsupported() and is_missing_credential() on the inference and OCR errors instead of matching through nested enums, and litellm_auth::Error answers is_missing_credential() for both

The rust-error skill gains axum and pyo3 references, boundaries.md describes the real predicate order and the known divergences, the testing example asserts dispatched() correctly, and shape, classification, conversions, messages-and-causes and recipes agree with the code again

* docs(rust): focus the rust-error gateway page on the error flow and add a rust-gateway skill

The former axum page toured gateway-inference: its status match, the envelope
table, an extractor, the unsupported route and the Sse closure. Those details
belong to the gateway crates and go stale with them. The page is now gateway.md
and follows an error from the provider failure through each From into
IntoResponse, where it is classified once and rendered by surface and framing.

The gateway-structure material moves to a new rust-gateway skill: envelopes per
API surface, extractors and path registration, SSE relay, and the router test
harness.

* test(inference): pin provider URL redaction on every route's transport error

Chat, Messages, Responses and transcription each get a route-level test that
fails if a reqwest error reaches the caller with its URL. The Messages stream
decoder also takes body errors through litellm_http::Error like every other
reqwest error

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* docs(rust-error): adopt std source chains and add litellm-error Report

Messages describe their own layer and the cause is the source, boundaries
render the chain once with litellm_error::Report. Corrects skill claims
the audit found stale against the code.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* refactor(rust-error): keep causes as sources across http, auth, secrets, cache and utility crates

Messages describe their own layer and every cause is a typed source,
predicates match exhaustively, and boundaries render with
litellm_error::Report. Media downloads no longer count as dispatched,
Error::upstream bounds the provider body itself, and a forwarded
header SigV4 cannot sign is the caller's fault.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* refactor(rust-error): keep causes as sources in llms and the gateway crates

ErrorDetail loses its string variant, OCR provider variants become data,
host faults stop counting as the caller's, a tunnelled transport error
classifies the same on every stream path, and each gateway crate has one
Error with one status() and extractors that reject in its envelope.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* refactor(rust-error): nest llms errors in inference and ask predicates in route tests

litellm_inference::Error nests litellm_llms::Error instead of mirroring
its variants, host driver faults get their own variant, every predicate
matches exhaustively, and route tests ask predicates instead of matching
transport variants.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* refactor(rust-error): map bridge and gateway-inference errors once and render them with Report

RustUpstreamError has one constructor that always sets headers, argument
checks raise typed errors mapped once, OCR asks upstream_response(), the
Responses stream error event comes from the error type, gateway-inference
loses its string variants, and auth faults classify through one
litellm_auth predicate on every route.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* fix(rust-error): carry OCR provider headers as a HeaderMap and keep outages off the caller

The OCR provider error and get_error_class take reqwest's HeaderMap, the
bridge turns it into Python's (name, value) pairs once. Credential
acquisition and provider SDK failures are no longer the caller's fault,
the UI hides auth and backend causes, and chat keeps a provider answer
as is.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* docs(rust-error): correct skill claims against the aligned code

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* refactor(rust-error): fix the remaining sweep findings in gateway, llms, auth and cache crates

Auth rejections hide their backend cause on every inference renderer,
path parameters reject in the surface envelope, Textract's unsupported
document and Azure DI's unparseable poll URL get typed variants, the
credential chain exposes its last failure as the source, gateway-mcp
asks predicates over rmcp errors, and the S3 and Azure blob transports
classify through litellm_http::Error.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* refactor(rust-error): fix the remaining sweep findings on the Python side

host-python keeps a native error's chain and returns blocking-pool
cancellation instead of panicking, Vault transport failures convert
through litellm_http::Error so no URL reaches Python, the bridge asks
predicates instead of matching three levels into Vault errors, and the
last string-built PyErrs become typed errors mapped once.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* build(deps): refresh compatible dependencies flagged by OSV

* refactor(rust): remove redundant client construction comment

* test(rust): cover configured MCP proxy and CA bundle

* fix(http): preserve native WebSocket trust and optional protocols

* fix(http): allow plain WebSockets without native roots

* fix(http): normalize provider URLs before building outbound requests

* fix(rust): preserve OCR download status and reduce error size

* fix(rust): preserve upstream bodies and bound diagnostics only

* test(rust): preserve bridge serialization boundary in body regression

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
2026-10-28 09:22:11 -07:00
devin-ai-integration[bot]
4677f1028e
refactor(rust): align the cache crates with Python and wire every native backend (#42530)
* refactor(rust): align the cache crates with Python and activate every backend

The cache port had drifted: lifecycle and Redis-only operations sat on
`BaseCache`, counters were pinned to `f64`, each semantic backend defined its
own embedder and prompt handling, and only the in-memory backend could be
selected natively.

- Split `disconnect` and `test_connection` out of `BaseCache` into optional
  capabilities, implemented only where the Python class defines them, and give
  every Redis-only operation its own capability trait.
- Decouple counters from the stored value type, so one backend can serve both
  responses and counters as Python's `RedisCache` does.
- Share one `Embedder` and prompt contract in `litellm_cache::semantic`, and
  make the Redis and Valkey semantic backends generic over their codec.
- Port the Python operations that were missing: `async_refresh_ttl`,
  `async_rpush_and_trim`, `async_set_cache_pipeline_with_ttls`, the DualCache
  pipeline, sadd, bulk delete and TTL reads, and the semantic-similarity
  write-back.
- Take the HTTP client from the host pool in the GCS, S3 and Azure backends.
- Activate all nine backends through the Rust catalog, whose rules all stay
  `PYTHON_ONLY`, and route the `Cache` facade's storage calls to the native
  runtime when one is selected.
- Give every crate the same layout, move all tests to `tests/` on rstest, and
  add the shared `litellm-cache-testing` contract suite.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix: freeze native cache request kwargs and batch entries for type discipline

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* fix: declare semantic lookup methods in the native stub

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* refactor(rust): align the cache crates with Python and activate every backend

The cache port had drifted: lifecycle and Redis-only operations sat on
`BaseCache`, counters were pinned to `f64`, each semantic backend defined its
own embedder and prompt handling, and only the in-memory backend could be
selected natively.

- Split `disconnect` and `test_connection` out of `BaseCache` into optional
  capabilities, implemented only where the Python class defines them, and give
  every Redis-only operation its own capability trait.
- Decouple counters from the stored value type, so one backend can serve both
  responses and counters as Python's `RedisCache` does.
- Share one `Embedder` and prompt contract in `litellm_cache::semantic`, and
  make the Redis and Valkey semantic backends generic over their codec.
- Port the Python operations that were missing: `async_refresh_ttl`,
  `async_rpush_and_trim`, `async_set_cache_pipeline_with_ttls`, the DualCache
  pipeline, sadd, bulk delete and TTL reads, and the semantic-similarity
  write-back.
- Take the HTTP client from the host pool in the GCS, S3 and Azure backends.
- Activate all nine backends through the Rust catalog, whose rules all stay
  `PYTHON_ONLY`, and route the `Cache` facade's storage calls to the native
  runtime when one is selected.
- Give every crate the same layout, move all tests to `tests/` on rstest, and
  add the shared `litellm-cache-testing` contract suite.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix: freeze native cache request kwargs and batch entries for type discipline

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* fix: declare semantic lookup methods in the native stub

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* test(rust): opt the native Messages and tokenizer suites into Rust explicitly

#42517 made the Messages, token counter and tokenizer routes Python-only, so
tests/test_litellm_rust silently exercised the Python path or failed outright.
Each suite now prepends a RUST_OPT_IN rule for its route, keeping native
coverage without changing the shipped default.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* fix(rust): pop one at a time in the Redis 6 lpop pipeline and drop explanatory comments

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

---------

Co-authored-by: Yujong Lee <yujong@berri.ai>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
2026-09-22 13:13:02 -07:00
Yujong Lee
c31fa2ae7a Merge remote-tracking branch 'origin/main' into litellm_native_redis_semantic_cache
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
2026-09-21 23:51:16 +00:00
Yujong Lee
d38514dfc6 test(cache-redis-semantic): pin shared-index behavior across embedding dimensions
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
2026-09-21 23:02:23 +00:00
Yujong Lee
d2f8e8c835 fix(cache-redis-semantic): harden index initialization
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
2026-09-21 21:21:57 +00:00
Yujong Lee
6ab121a3e7 feat(cache-redis-semantic): add native Redis Semantic cache backend
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
2026-09-21 20:29:49 +00:00