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The capture plane (parent commit) records each warming-enabled session's latest payload in Redis. This adds the consume side so every tier model's provider prompt cache stays warm while a session is active and tier switches bill as cache reads: - CacheWarmingRefresher.run_tick: single-pod via the Redis cron lock; when the injected PodLockManager has no Redis attached the refresher elects through a fallback PodLockManager bound to the warming store's own Redis, so multi-pod duplicate replays cannot happen whenever warming itself is active. Enumerates session records, drops idle sessions, skips keys that are deleted, blocked, expired, or at 95% of max_budget (fails open on lookup errors; the config-defined master key has no token row and stays eligible), and replays each due payload against every warm-set model with max_tokens=1, stream=False and response-cache bypass, bounded by a 10-replay semaphore. The warm set is warm_models or the first member of each tier pool, filtered to anthropic/bedrock deployments that support prompt caching; a deployment's declared custom_llm_provider wins over inference. Chat payloads replay via router.acompletion with internal metadata in the metadata slot; anthropic_messages payloads replay via router.aanthropic_messages with system and tool_choice forwarded and internal metadata in litellm_metadata, since metadata is the provider body field on that surface. Replays carry the loop-guard marker, the originating key's attribution, and the litellm_cache_warming tag unless tag filtering is enabled. Warmth stamps land even for failed attempts so a dead deployment is retried once per interval, not every tick. - proxy_server._complexity_cache_warming_loop: 30s tick modeled on the adaptive flusher (sleep-first, resolves llm_router fresh each tick, re-raises CancelledError, survives tick exceptions), started unconditionally at startup so hot-reloaded routers are covered. - ComplexityRouter._warm_aware_pick: consulted by _pick_model_for_tier on both the plain and plugin-narrowed branches. Prefers pool members whose warmth stamp is fresh within refresh_interval_seconds plus 60s slack, unions the served model while the session is active, and falls back to the existing pick when there is no session, record, store, or intersection. - README: Cache Warming section covering the YAML shape, the Redis and store_prompts_in_spend_logs prerequisites, the Redis Cluster limitation, spend attribution and tagging, max_sessions semantics, and the session_affinity interplay. |
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| .. | ||
| agent_tests | ||
| audio_tests | ||
| basic_proxy_startup_tests | ||
| batches_tests | ||
| benchmarks | ||
| code_coverage_tests | ||
| documentation_tests | ||
| e2e | ||
| enterprise | ||
| guardrails_tests | ||
| image_gen_tests | ||
| integration | ||
| litellm | ||
| litellm-proxy-extras | ||
| litellm_core_utils | ||
| litellm_utils_tests | ||
| llm_responses_api_testing | ||
| llm_translation | ||
| load_tests | ||
| local_testing | ||
| logging_callback_tests | ||
| mcp_tests | ||
| multi_instance_e2e_tests | ||
| ocr_tests | ||
| old_proxy_tests/tests | ||
| openai_endpoints_tests | ||
| otel_tests | ||
| pass_through_tests | ||
| pass_through_unit_tests | ||
| proxy_admin_ui_tests | ||
| proxy_behavior | ||
| proxy_e2e_anthropic_messages_tests | ||
| proxy_migration_tests | ||
| proxy_security_tests | ||
| proxy_unit_tests | ||
| router_unit_tests | ||
| scim_tests | ||
| search_tests | ||
| spend_tracking_tests | ||
| store_model_in_db_tests | ||
| test_litellm | ||
| unified_google_tests | ||
| vector_store_tests | ||
| windows_tests | ||
| __init__.py | ||
| _fake_openai_endpoint_server.py | ||
| _flush_vcr_cache.py | ||
| _live_test_helpers.py | ||
| _openai_record_replay_proxy.py | ||
| _vcr_conftest_common.py | ||
| _vcr_redis_persister.py | ||
| _ws_vcr.py | ||
| eval_swe_bench.py | ||
| fake_openai_endpoint.py | ||
| gettysburg.wav | ||
| large_text.py | ||
| openai_batch_completions.jsonl | ||
| pyrightconfig.json | ||
| README.MD | ||
| test_anthropic_compaction_usage.py | ||
| test_budget_management.py | ||
| test_callbacks_on_proxy.py | ||
| test_config.py | ||
| test_debug_warning.py | ||
| test_default_encoding_non_root.py | ||
| test_end_users.py | ||
| test_entrypoint.py | ||
| test_fallbacks.py | ||
| test_gpt5_azure_temperature_support.py | ||
| test_health.py | ||
| test_keys.py | ||
| test_litellm_proxy_responses_config.py | ||
| test_logging.conf | ||
| test_models.py | ||
| test_new_vector_store_endpoints.py | ||
| test_openai_endpoints.py | ||
| test_organizations.py | ||
| test_otel_thread_leak.py | ||
| test_passthrough_endpoints.py | ||
| test_presidio_latency.py | ||
| test_proxy_server_non_root.py | ||
| test_ratelimit.py | ||
| test_resource_cleanup.py | ||
| test_service_logger_otel.py | ||
| test_spend_logs.py | ||
| test_team.py | ||
| test_team_logging.py | ||
| test_team_members.py | ||
| test_users.py | ||
In total litellm runs 1000+ tests
[02/20/2025] Update:
To make it easier to contribute and map what behavior is tested,
we've started mapping the litellm directory in tests/test_litellm
This folder can only run mock tests.