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6 commits

Author SHA1 Message Date
Nate Armstrong
87d91d78b7
refactor(router): route the router family through RoutingContext and close the outside surface (#49118)
Strategies, pre-call checks, cooldown and fallback helpers, and the auto, complexity and quality
sub-routers now take a RoutingContext instead of the Router, and read the router only through
registry(), settings(), health() and the context's forwarding methods. Router-free helpers move
from router_utils to litellm_core_utils, outside callers of router state switch to entry points,
and the surface allowlist shrinks to the endpoint methods plus the entry points
2026-10-30 19:18:54 -07:00
Mateo Wang
c489aa7117
feat(proxy)!: add suppress_startup_output to turn off startup prints (#47708)
* fix(proxy): keep every startup line JSON when json_logs is on

Boot-time messages the proxy printed straight to stdout (banner, feedback
box, model list, cache and callback notices, policy table, migration
notices, CLI launch notes) and the first records of uvicorn- or
granian-spawned workers came out as plain text while json_logs was on,
breaking log pipelines that parse every line as JSON.

- print_startup_message() prints unchanged in plain mode and, with
  json_logs on, emits one INFO record on the proxy logger (ANSI
  stripped) that skips the logger and handler level checks like the
  print it replaces; show_banner() routes to it in JSON mode only
- the CLI exports JSON_LOGS=true when the config sets json_logs so
  spawned workers log JSON from their first record
- the --enforce_prisma_migration_check deprecation notice prints after
  the config is read so a config-only json_logs covers it

Resolves LIT-1624

* fix(proxy): keep show_banner() SDK-free, pick the JSON banner in initialize()

Since #46803 the `lite` shell calls show_banner() against an uninitialized
litellm package, and reading litellm.json_logs inside it initialized the whole
SDK at the banner (0.14 s to 0.83 s for a bare `lite` here, the seconds that PR
removed on small VMs). show_banner() is back to its main version; the proxy's
initialize() now emits the JSON banner record itself and calls show_banner()
only in plain mode. The banner unit tests move to the initialize() call site.

* fix(proxy): keep the JSON banner when an operator --log_config names the proxy logger

uvicorn applies --log_config after proxy_cli has switched JSON logging on and before
initialize() switches it on again through load_config(). A logging config that names
"LiteLLM Proxy" removes that logger's handlers in the window between the two, which is where
initialize() emits the banner and the feedback box, so at one worker both went nowhere;
two-worker children import litellm after uvicorn's logging setup and were not affected.
print_startup_message() now falls back to a one-off JSON handler, on the stream the JSON
handler uses, when the proxy logger has no handler of its own.

Live, json_logs on plus a log_config naming the proxy logger, one worker: main prints the
banner and the feedback box as plaintext, e2303a3925 prints neither, this head prints both as
one JSON record each. New unit test fails on e2303a3925; new integration cell
test_json_logs_with_operator_log_config_keeps_every_line_json passes at one and two workers.

* fix(proxy): keep a long startup listing whole in its JSON record

print_startup_message ran its record through the proxy logger's filters, so
in JSON mode the required-migration SQL list and the policy list were
middle-truncated at MAX_STRING_LENGTH_STDOUT_LOG (4096 by default) with the
litellm_truncated marker, where the prints they replace showed them whole.
That cap bounds echoed request payloads; a startup message is operator text,
so the record now gets the uncapped processing of a DEBUG line: secret
redaction and base64 collapse still apply, the text cap does not.

Red on 41f92b745a, green here:
- tests/unit/test_logging.py: a listing longer than the cap comes out whole;
  a credential in a startup message is still redacted
- tests/integration/configuration/test_json_logs_startup.py: a 60-policy
  config boots with json_logs on and the policy listing record (9762 chars)
  carries every policy with no truncation marker (4096 chars, marker, on
  the unfixed tree)

* fix(proxy): keep the --enforce_prisma_migration_check notice on --health and --test

This PR moved the deprecation notice after the config is read, so that a
json_logs set only in the config applies to it; --health and --test return
before that point and stopped printing it, a visible change main did not
have. The notice is now also emitted before those two returns, through the
same helper, so a deployment running `litellm --health
--enforce_prisma_migration_check` still learns the flag is dead, as on main.
A normal server start emits it once, after the config, as in the previous
commit.

Red on 2d7a2d6844, green here: tests/unit/proxy/test_proxy_cli.py asserts
the notice on --health and on --test.

* fix(proxy): keep the JSON startup records on stdout under an operator handler on the proxy logger

An operator --log_config that gives "LiteLLM Proxy" a handler of its own, a NullHandler
that silences it or a plain WARNING-level handler on stderr, is in force in the window
where the banner, the feedback box and the cache notice are emitted: uvicorn applies it
after the CLI process switched JSON on and before initialize() re-installs the JSON
handler through load_config(). 41f92b745a sent the startup records through the proxy
logger's handlers and fell back to a JSON stdout handler only when there were none, so
under such a config the records landed in the operator's handler, as plaintext on stderr,
or vanished, where the prints they replace reached stdout whatever the logging config
said.

print_startup_message() now writes every startup record through the proxy's own JSON
handler on stdout, filters included, and never through the proxy logger's handlers; the
operator's handler gets nothing from a startup message, as it got nothing from the print.
The normal JSON handler is the same class, formatter and filters, so the records a
pipeline reads are unchanged when no operator config is in play.

Tests: tests/unit/test_logging.py gets the two handler shapes (red on f6f5957d16: the
record went to stderr as plaintext or nowhere); tests/integration/configuration/
test_json_logs_startup.py gets a silencing operator --log_config cell at 1 and 2 workers
(red on f6f5957d16: banner, feedback box and cache notice missing; green here).

* fix(proxy): print the --enforce_prisma_migration_check notice when the config fails to load

f6f5957d16 printed the deprecation notice after the config is read, so a json_logs set
only in the config makes it a JSON record. A boot whose config file is missing or does
not parse then exited before that point and never printed it, where main printed it
before the error (10-20 gauntlet finding).

The notice is printed where main printed it, unless a config file can still switch
json_logs on: then it is held until the config is read and printed right after the
json_logs switch, and a click close callback prints it on the way out if the boot fails
first. functools.cache keeps it to one print either way.

Tests: tests/unit/proxy/test_proxy_cli.py covers a failed config read (red on
75043aed83), a plain config printing it once and a config-only json_logs making it one
JSON record; tests/integration/configuration/test_json_logs_startup.py adds the JSON cell
and a missing and an unparseable config cell (red on 75043aed83, green here), through
refused_boot_log, which now takes extra CLI arguments.

* feat(proxy): add suppress_startup_output to turn off startup prints

* fix(proxy): print startup messages once and without color codes off a terminal

* test(policy-engine): check the policy table keeps colors on a terminal and drops them on a pipe

* fix(proxy): keep startup warnings when suppress_startup_output is on and apply it from CONFIG_FILE_PATH and before other settings

Warnings that name something the operator must fix now print through print_startup_warning, which
skips the suppress gate. The config key is read with the CLI's json_logs handling for --config and
CONFIG_FILE_PATH, applied before the rest of litellm_settings in load_config, and can only turn the
setting on. The Prometheus config panel obeys the setting, and startup prints use the plain log
format's color rule.

* fix(proxy): read CONFIG_FILE_PATH in the CLI only when workers would load it

Workers load CONFIG_FILE_PATH only when it names an existing YAML file, so the CLI's early read of
json_logs and suppress_startup_output skips any other value instead of failing a boot that used to start.

* fix(proxy): read only suppress_startup_output from CONFIG_FILE_PATH in the CLI, without secrets

The CLI now reads CONFIG_FILE_PATH as a plain file with its includes, skips it when a config bucket is set,
and applies only suppress_startup_output, also when --config is passed. json_logs there stays with the
workers as before. Fatal boot errors drop their color codes off a terminal like the startup prints.

* fix(logging): emit startup warnings as WARNING records in JSON mode

* fix(proxy): keep one JSON record per search tool in the startup listing

* fix(proxy): keep booting with an ASCII stdout or an empty litellm_settings

Startup messages now go through click.echo, which writes UTF-8 when stdout is ASCII, as the banner did
before. An empty litellm_settings section reads as no settings in the CLI, as the workers already read it

* test(proxy): boot the CLI tests on the real ProxyConfig config readers

* test(proxy): cover the startup warnings that print with startup output suppressed

* test(proxy): boot the deprecated resolver flag test on the real ProxyConfig

* test(proxy): drop the startup output contract's narrating docstrings

* test(proxy): cover the pgbouncer start failure message off a terminal

---------

Co-authored-by: yucheng-berri <293926326+yucheng-berri@users.noreply.github.com>
2026-10-29 03:47:04 -07:00
Mateo Wang
dfac770e2b
feat(proxy): map baggage values to budget tags (#47358)
* feat(proxy): map baggage values to budget tags

* fix(proxy): preserve mapped tags in the parsed request cache

* fix(proxy): preserve mapper accounting and tag policy

* fix(proxy): preserve baggage tags across native transports

* fix(proxy): keep mapper rejection and passthrough logging safe

* fix(proxy): scope baggage tag mappings to billed inference and keep them out of tag routing

Mapped tags now apply only to billed LLM API routes, skipping token counting,
model listing, MCP and A2A. They classify spend and budgets but never select
deployments unless a key, team or client set the same tag. WebSocket inference
returns 403 only while a required rule exists. A tag created with /tag/new resets
its spend counter so its budget counts from creation. The General settings editor
keeps a new mapping unsaved until every required field is filled in.

* fix(proxy): keep client-tag rejection identical with baggage, map A2A calls, skip request previews

* fix(proxy): keep mapped tags out of requester metadata, answer 503 on tag lookup errors, map custom pass-through routes, check the key before the WebSocket 403

* fix(proxy): keep caller-sent tags routable, keep mapped tags out of policy and guardrail matching, honor allow_requests_on_db_unavailable, reject control characters in baggage values

* test(proxy): cover baggage tag mappings end to end

Adds integration cells for request_tag_mappings across chat, messages,
responses, A2A and custom pass-through spend, required and budgeted
rules, the WebSocket refusal, unbilled routes, reject_clientside_metadata_tags,
tag routing and policy isolation, a dropped tag read with and without
allow_requests_on_db_unavailable, and the /tag/new spend counter reset

* fix(proxy): keep base tag merges for requests that map nothing, accept JSON-string metadata tags, count litellm_metadata caller tags

Requests with no mapped baggage now reuse the cached body exactly as before, so header and key tag merges still normalize metadata for routing. The client body copy is made only when a tag maps, and the base merges are mirrored onto it. A request that maps nothing no longer gets a 400 for non-object metadata. caller_tags now counts tags sent in both metadata and litellm_metadata. Optional mappings no longer reject JSON-string metadata tags under reject_clientside_metadata_tags.

* fix(router): keep baggage-mapped tags from selecting tag-scoped pre-routing strategies

Auto, complexity, adaptive and quality router selection, the consumed-tags stamp and compression policy lookup now read request tags without baggage-mapped tags, unless the caller sent the tag or the key, team or project carries it, matching deployment tag filtering.

* feat(proxy): parse baggage headers into request tag mappings

* fix(proxy): match plus-sign baggage keys and keep deployment tags in guardrail modes

* fix(proxy): keep baggage-mapped tags behind key, team and deployment tags and serve non-object or invalid DB mapping settings like unset

Mapped tags are added after the key, team, deployment and caller tags, so a tag-mode guardrail picks the same mode with or without baggage. A non-object metadata field maps like empty metadata, and an invalid request_tag_mappings value loaded from the DB is ignored with an ERROR log instead of failing every request

* fix(router): merge deployment tags in linear time and keep malformed client tags as sent under mapped baggage

Merge serving deployment tags into the request tags in one pass, so a large client tag list no longer blocks the event loop. Leave a non-list metadata.tags untouched when baggage maps a tag, so the request gets the same answer as without baggage. Add the C17 integration cell for the team tag's guardrail mode under a mapped deployment tag.

* test(spend): cover string metadata.tags under mapped baggage

* fix(proxy): check mapped tag budgets when metadata.tags is a non-list or holds non-strings

Mapped baggage tags are applied again after the header and key tag merges, so
a header or key tag that replaces a string metadata.tags no longer hides the
mapped tag from the tag budget check. An empty or false metadata.tags is read
like a missing one, and a tags list with non-string items is kept as sent with
the mapped tags added after it, instead of failing auth with a 401
2026-10-20 09:09:42 +00:00
devin-ai-integration[bot]
6f5ca84f69
feat(prometheus): cap series per metric for every labeled metric (#44420)
* feat(prometheus): cap series per metric for every labeled metric

Add prometheus_metrics_max_series_per_metric: per metric and per worker process, the first N label
sets keep a series of their own. Counters and histograms record every later label set on one series
whose labels are all "other", so totals stay exact, and gauges skip it. The cap holds with multiple
workers because it never needs to remove a series.

Add prometheus_metrics_ttl_seconds: a series idle for that long is removed and its slot is freed.
The prometheus client cannot remove a series in multi-process mode, so the TTL is ignored there with
a startup warning.

Both settings are off by default. The end_user caps are unchanged.

* fix(prometheus): share the series cap across workers of one proxy instance

Workers writing to one PROMETHEUS_MULTIPROC_DIR now agree on which label
sets get a series through an append-only admissions file per metric, so a
merged scrape stays at the cap plus `other` instead of growing with every
worker and every worker restart. The two fallback counters now pass their
label names as a keyword so the cap and prometheus_exclude_labels apply to
them, admission and child creation happen under one lock, the test fixture
restores the shared registry, and the `other` label value lives in
constants.py.

* test(prometheus): check emitted labels instead of wrapper types, close the admission match

The exclude-labels test now emits through the spend and provider budget
metrics and checks the scrape keeps all their labels. The admission match
arms end in assert_never so the match is exhaustive.

* fix(prometheus): return the exhaustive-match fallback so every admission arm returns

* fix(prometheus): pick the series tracker with isinstance so every path of _admits returns

* fix(prometheus): skip an admissions line a worker could only write part of

* fix(prometheus): frame each admissions record with newlines so a cut-off record cannot swallow the next

A record a worker could only write part of used to merge with the next worker's record, and both were skipped for one request. Each record is now written between two newlines, so the fragment is a line of its own. The clock fixture in the series tests starts from a constant instead of reading the real clock

* fix(prometheus): ignore a non-positive series cap or TTL with a warning instead of failing the logger

A cap or TTL of 0 or less raised at logger init. The proxy logs that as a non-blocking error and keeps serving, so the result was a running proxy with no Prometheus metrics at all. The setting is now ignored with a startup warning naming it, the same rule the end_user cap already follows for a non-positive value

* fix(prometheus): start the series cap over on a one-worker restart and audit it live

A proxy with one worker and an operator-set PROMETHEUS_MULTIPROC_DIR now drops litellm's admission files at boot, so a restart frees every slot there the way it already does with several workers. A cap or TTL that is not a number greater than 0 (a bool, a non-numeric string, an empty value) is ignored with the startup warning instead of breaking the logger

The integration cells drive the cap on every endpoint through the OpenAI and Anthropic SDKs and raw httpx, streaming and not, plus gauges, cache hits, failures, both workers of one instance, the TTL on one worker and its warning on two, ignored settings, excluded labels on the fallback counters, a null cap, /config/update, a concurrent burst scraped mid-flight, a provider outage, a killed worker, and restarts with one and two workers

* fix(prometheus): wipe an operator-set multiprocess directory on a one-worker boot too

* fix(prometheus): leave the multiprocess directory alone on a setup-only run

A run with --skip_server_startup starts no worker, so it no longer creates or
wipes PROMETHEUS_MULTIPROC_DIR. Wiping there deleted the samples of a proxy
already running against the same directory

* fix(prometheus): free the capped series slots when a gateway or backend container restarts

The component image entrypoint starts uvicorn without the proxy CLI and wiped only the .db sample files at container start, so the admitted-series files of the previous container survived an in-place restart. Every label set seen after the restart was then counted on `other` once the previous container had filled the cap

* test(prometheus): cover a setup-only run and a gateway image restart under the cap

Two integration cells from the audit: a `--skip_server_startup` run pointed at a live
two-worker proxy's operator directory leaves its samples alone, and the gateway image
(`docker/component_entrypoint.sh` running `python -m gateway.launch`) restarted on a kept
PROMETHEUS_MULTIPROC_DIR starts the cap over. The burst cells now wait for every counter
they assert on, since the request and failure counters of one call increment at different
points of the logging callback

* test(prometheus): prove the cap reaches the fallback counters in the X1 cell

* fix(prometheus): ignore a cleanup interval that is not a number of at least 0

A string or negative prometheus_metrics_cleanup_interval_seconds reached the
series tracker unvalidated, so the first labeled emit with a TTL on raised
TypeError inside the callback and recorded no series. The interval is now
validated the way the cap and the TTL are: an invalid value is ignored with a
warning and the default 60 seconds applies. The I2 integration cell drives a
string interval through a live proxy and reads the warning from its log

* test(prometheus): give the restart cells the boot budget of their siblings

C4 and C5 boot two proxies each and hit the file's 240 s budget on a loaded
box; C3 and D1 already carry 420 s

---------

Co-authored-by: mateo-berri <277851410+mateo-berri@users.noreply.github.com>
2026-10-06 01:28:44 +00:00
yuneng-jiang
14f4c34c61
fix(ci): stop stale CI reds, keep unit tests off the host env, retry CyberArk policy conflicts (#43294)
* fix(ci): stop five stale or flaky CI reds and retry CyberArk policy-load conflicts

The Langfuse redaction unit test exports to a local OTLP capture instead of
polling Langfuse Cloud through a recorded lookup. The passthrough worker-kill
test only requires spend rows for requests the surviving worker served. The
spend-routes sweep treats the intentional /spend/capture_rate 503 as expected.
CyberArk retries a 409 policy load in Python, Rust and the e2e Conjur helper
instead of reading it as "variable exists". The integration egress guard now
matches the script's own cgroup, so it no longer blocks the CircleCI agent,
which runs as the same user.

* fix(ci): keep the policy-load backoff typed as float

* fix(ci): retry CyberArk policy loads without blocking the event loop and tighten the worker-kill and Langfuse tests

* fix(secrets): load CyberArk policy one request at a time per manager

* test(secrets): pin that non-conflict CyberArk policy failures are not retried

* test(unit): run tests/unit with only an allowlisted host environment

CircleCI's unit job inherits every project env var, so real provider keys,
REDIS_HOST, DATABASE_URL and AWS or Azure credentials reached tests that
assume none are set. Locally, litellm's import-time load_dotenv did the same
from any .env up the tree. The unit conftest now drops every variable outside
a small allowlist and disables dotenv before litellm is imported.

* test(e2e): name a failed search and the stuck batch status instead of misattributing them

The websearch session test read an empty web_search_tool_result_error block as a
successful search, so a failing search tool surfaced as a session billing bug.
The batch cancellation timeout now reports the last status the proxy returned.

* fix(ci): scrub the host environment per unit test instead of for the whole pytest process

GHA shards run tests/unit next to other suites in one process, so the import-time
scrub deleted MCP_TEST_PEER_PYTHON before tests/mcp_tests read it and the MCP
upstream fell back to the SDK2 interpreter. The two websearch tests that called
OpenAI and Perplexity live are removed: tests/unit no longer sees their keys.

* fix(ci): scrub only the host variables present before litellm is imported

The per-test scrub also deleted TIKTOKEN_CACHE_DIR, which litellm sets at import to
its bundled encodings, so tokenizer paths tried to download them and hit the
socket guard. The prisma setup test now passes its own database URL instead of
reading one another test leaked into the process environment.

* fix(ci): stop the order-dependent unit reds and settle logging tasks on their own queue

LoggingWorker marked a task done on whichever queue was current when the callback
finished, so a callback that outlived an event-loop change raised "task_done()
called too many times" or undercounted the new loop's queue. It now settles the
queue the task came from.

The rest are test isolation fixes for failures that only appeared when another
file ran first on the same xdist worker: a replaced user_api_key_cache, breaker
metrics unregistered by prometheus tests, semantic_router's health-check filter on
uvicorn.access, logging tasks carried over from bedrock tests, a Router-written
model_cost entry, and a stray post captured by the langflow test. The token
counter check now asserts bounded chunking instead of wall-clock time.

* test(e2e/ui): wait for the logout redirect before visiting a protected page

Logout revokes the session server-side before clearing cookies and navigating, so an immediate page.goto either ran with the cookie still set or was aborted by the logout redirect (net::ERR_ABORTED).

* test(unit): restore the prometheus metrics config per test and settle logs carried from earlier tests in the a2a cost tests

* test(router): pin the router clock in the usage counter tests so a minute rollover cannot empty the read

* test(e2e/ui): wait for logout to clear the token cookie instead of for a login redirect

* test(integration/mcp): answer the model-info probe another test's proxy sends to the model double
2026-09-26 09:25:13 -07:00
devin-ai-integration[bot]
bf0187072b
ci: move caching, proxy-extras, gateway and enterprise tests into tests/unit and run them from litellm-tests (#42902)
* ci: fix the litellm-tests unit job with sysmon coverage, an env allowlist and coverage upload on failure

* test: replace key-dependent proxy, enterprise and mcp unit tests with synthetic values and integration and e2e coverage

* test: drop key reads at the legacy proxy, enterprise and mcp paths and wire the gemini pass-through split

* ci: move caching, proxy-extras, gateway and enterprise tests into tests/unit and run them from litellm-tests under their legacy flags

* ci: move caching, proxy-extras, gateway and enterprise tests into tests/unit and run them from litellm-tests under their legacy flags

* ci: fail the unit shard when circleci tests split errors

* test: drop restating comments from the gemini pass-through split

* ci: exit the unit shard cleanly when circleci tests split assigns it no files

---------

Co-authored-by: yuneng <yuneng@berri.ai>
2026-09-24 15:49:59 -07:00