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temp hot fix #423

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154394f
hot fix
xzrderek Jan 24, 2026
9186f68
hot fix
xzrderek Jan 24, 2026
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24 changes: 24 additions & 0 deletions eval_protocol/proxy/proxy_core/litellm.py
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Original file line numberDiff line numberDiff line change
Expand Up@@ -4,6 +4,7 @@

import json
import base64
import asyncio
import httpx
import logging
from uuid6 import uuid7
Expand All@@ -14,6 +15,12 @@

logger = logging.getLogger(__name__)

# Retry configuration for 404 errors
# 8 retries with exponential backoff (1, 2, 4, 8, 16, 32, 64, 128 seconds)
# Total wait time: ~255 seconds (~4.25 minutes)
MAX_RETRIES_ON_404 = 9

@cursorcursorBotJan 26, 2026

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Retry count mismatch: 9 retries instead of documented 8

Medium Severity

The comment states "8 retries" with delays of "1, 2, 4, 8, 16, 32, 64, 128 seconds" and total wait time of "~255 seconds", but MAX_RETRIES_ON_404 = 9 causes 9 retries. The 9th retry adds a 256-second delay, nearly doubling total wait time to ~511 seconds (~8.5 minutes). This could cause users to wait twice as long as intended when hitting persistent 404 errors.

Additional Locations (1)

Fix in CursorFix in Web

RETRY_BASE_DELAY_SECONDS = 1


async def handle_chat_completion(
config: ProxyConfig,
Expand DownExpand Up@@ -108,12 +115,29 @@ async def handle_chat_completion(
# Forward to LiteLLM
litellm_url = f"{config.litellm_url}/chat/completions"

# Retry loop with exponential backoff for 404 errors
# Initial request
response = await client.post(
litellm_url,
json=data, # httpx will serialize and set correct Content-Length
headers=headers,
)

for attempt in range(MAX_RETRIES_ON_404):
if response.status_code != 404:
break

# Wait with exponential backoff before retry
delay = RETRY_BASE_DELAY_SECONDS * (2**attempt)
logger.warning(f"Got 404 from LiteLLM, retrying in {delay}s (attempt {attempt + 1}/{MAX_RETRIES_ON_404})")
await asyncio.sleep(delay)

response = await client.post(
litellm_url,
json=data,
headers=headers,
)

# Register insertion_id in Redis only on successful response
if response.status_code == 200 and insertion_id is not None and rollout_id is not None:
register_insertion_id(redis_client, rollout_id, insertion_id)
Expand Down
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