litellm/tests
jimmychen-p72 2fe615b373
fix(s3): add retry with exponential backoff for transient S3 503/500 errors (#25530)
* fix(s3): add retry with exponential backoff for transient S3 503/500 errors

S3 occasionally returns 503 "Slow Down" during PUT operations when
request rates spike above partition limits. The current code makes a
single upload attempt via httpx — unlike boto3, httpx has no built-in
retry for transient S3 errors. Failed uploads permanently lose the
request's audit/logging data.

Add exponential backoff retry (3 attempts, 1s/2s delays) for S3
500/503 responses in both async_upload_data_to_s3 and
upload_data_to_s3. Logs a warning on each retry with the S3 object
key for observability.

In production we observed ~18 permanent S3 upload failures per day
(124 over 7 days) — all transient 503s that would have succeeded on
a single retry.

* test(s3): add unit tests for S3 upload retry logic

Tests cover:
- Async retry on 503 (succeeds on second attempt)
- Async retry on 500
- Exhausted retries on persistent 503 (calls handle_callback_failure)
- No retry on 4xx errors (403)
- Sync retry on 503

* style(s3): move time import to module level

Address review feedback: move `import time` from inside
upload_data_to_s3 to the top-level imports per project style guide.
2026-04-11 09:39:12 -07:00
..
agent_tests refactor: make unit test 2026-03-28 21:44:46 -07:00
audio_tests test: cleanup test impacted by deployment name change 2026-03-30 18:07:50 -07:00
basic_proxy_startup_tests CircleCI test stability (#23055) 2026-03-07 15:19:39 -08:00
batches_tests test fix us.anthropic.claude-haiku-4-5-20251001-v1:0 (#24931) 2026-04-01 11:01:03 -07:00
benchmarks Add CodSpeed performance benchmarks (#23676) 2026-03-14 18:44:36 -07:00
code_coverage_tests [Fix] Remove unused aioboto3 dependency and botocore conflict workarounds 2026-04-01 14:25:44 -07:00
documentation_tests [Fix] Scope documentation workflow to match CircleCI and add missing router settings 2026-03-28 11:23:53 -07:00
enterprise Litellm oss staging 04 02 2026 p1 (#25055) 2026-04-08 21:37:10 -07:00
guardrails_tests Add Akto Guardrails to LiteLLM (#23250) 2026-03-17 14:38:04 -07:00
image_gen_tests fix: cleanup tests 2026-03-30 16:24:35 -07:00
litellm Litellm ishaan april2 (#25113) 2026-04-04 12:31:49 -07:00
litellm-proxy-extras [Infra] Mirror litellm_table_patch source changes (no binaries) 2026-03-27 16:45:12 -07:00
litellm_core_utils Fix: empty assistant message for converse API 2026-02-04 09:50:58 +05:30
litellm_utils_tests Litellm ishaan april4 2 (#25150) 2026-04-04 23:09:42 +00:00
llm_responses_api_testing test: remove bad e2e tests - e2e failing due to low rate limits on ci/cd 2026-03-30 19:18:10 -07:00
llm_translation feat(triton): add embedding usage estimation for self-hosted responses (#25345) 2026-04-08 21:14:27 -07:00
load_tests test: update to new vertex ai keys 2026-03-28 20:19:05 -07:00
local_testing format vertex test file 2026-04-09 21:49:06 -07:00
logging_callback_tests [Test Fix] fix gov pricing tests (#25022) 2026-04-02 15:55:55 -07:00
mcp_tests feat(mcp): add per-user OAuth token storage for interactive MCP flows 2026-04-09 21:49:06 -07:00
multi_instance_e2e_tests
ocr_tests test: update to new vertex ai keys 2026-03-28 20:19:05 -07:00
old_proxy_tests/tests fix: cleanup tests 2026-03-30 16:24:35 -07:00
openai_endpoints_tests Litellm fix update bedrock models (#24947) 2026-04-01 19:22:54 -07:00
otel_tests fix(tests): increase MAX_CALLS and reduce sleep in flaky e2e budget test 2026-03-13 00:04:31 -07:00
pass_through_tests Litellm fix update bedrock models (#24947) 2026-04-01 19:22:54 -07:00
pass_through_unit_tests Litellm fix update bedrock models (#24947) 2026-04-01 19:22:54 -07:00
proxy_admin_ui_tests [Fix] Remove neon CLI dependency and pin all JS dependencies 2026-04-01 16:15:32 -07:00
proxy_e2e_anthropic_messages_tests test fix us.anthropic.claude-haiku-4-5-20251001-v1:0 (#24931) 2026-04-01 11:01:03 -07:00
proxy_security_tests
proxy_unit_tests retain ui_routes enum alias for JWT config backwards compatibility 2026-04-10 08:55:32 -07:00
router_unit_tests fix(router): address remaining Greptile review comments 2026-03-27 20:11:28 +05:30
scim_tests
search_tests Merge remote main, resolve conflict keeping new unit tests 2026-03-09 15:20:20 -07:00
spend_tracking_tests [Staging] - Ishaan March 17th (#23903) 2026-03-18 15:09:01 -07:00
store_model_in_db_tests test: fix assemblyai passthrough transcription request format 2026-03-30 18:49:04 -07:00
test_litellm fix(s3): add retry with exponential backoff for transient S3 503/500 errors (#25530) 2026-04-11 09:39:12 -07:00
ui_e2e_tests fix: address Greptile review comments 2026-04-06 23:12:40 -07:00
unified_google_tests test: update to new vertex ai keys 2026-03-28 20:19:05 -07:00
vector_store_tests test: update test apis 2026-03-28 18:57:27 -07:00
windows_tests
__init__.py
gettysburg.wav
large_text.py
openai_batch_completions.jsonl
README.MD
test_budget_management.py
test_callbacks_on_proxy.py
test_config.py
test_debug_warning.py
test_default_encoding_non_root.py fix: tiktoken cache nonroot offline (#23498) 2026-03-14 10:48:36 -07:00
test_end_users.py
test_entrypoint.py
test_fallbacks.py Revert "fix: prevent error when max_fallbacks exceeds available models (#20071)" 2026-02-03 15:15:30 +05:30
test_gpt5_azure_temperature_support.py [Fix] Remove deprecated o1-preview from O-series test and deduplicate is_o_series check 2026-03-12 13:22:00 -07:00
test_health.py
test_keys.py Adding retries to flaky tests 2026-01-22 15:21:44 -08:00
test_litellm_proxy_responses_config.py
test_logging.conf
test_models.py test: replace test_add_and_delete_models integration test with mock 2026-03-30 21:30:57 -07:00
test_new_vector_store_endpoints.py fix(ci): stabilize CI tests - conditional import, mock fixes, timing adjustments 2026-03-13 00:01:25 +00:00
test_openai_endpoints.py
test_organizations.py Adding retries to flaky tests 2026-01-22 15:21:44 -08:00
test_otel_thread_leak.py Fix thread leak in OpenTelemetry dynamic header path (#19946) 2026-01-28 10:35:37 -08:00
test_passthrough_endpoints.py
test_presidio_latency.py fix(presidio): reuse HTTP connections to prevent OOMs (#19964) 2026-01-28 16:08:53 -08:00
test_proxy_server_non_root.py deactivating non root tests 2026-01-23 22:55:36 -08:00
test_ratelimit.py
test_resource_cleanup.py
test_service_logger_otel.py fix(langfuse_otel): prevent empty proxy request spans from being sent to Langfuse 2026-01-28 15:35:35 +01:00
test_spend_logs.py
test_team.py [Fix] Fail fast when team member spend not flushed in time 2026-03-13 12:40:17 -07:00
test_team_logging.py test: cleanup dead tests 2026-03-28 20:49:02 -07:00
test_team_members.py
test_users.py Litellm fix update bedrock models (#24947) 2026-04-01 19:22:54 -07:00

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.