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refactor(proxy): drop model-change pubsub env knobs

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The channel name and the poll/reconnect timings were configurability nobody asked for, and each new os.getenv key must be documented in the docs repo before CI's env-key check passes. They are plain module constants now.

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
This commit is contained in:
tin 2026-07-30 21:07:13 +00:00
parent 0e8fa4e081
commit a0b1dd7861
3 changed files with 5 additions and 29 deletions
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13
litellm/constants.py
View file

@ -2,11 +2,7 @@ import os
import sys
from typing import List, Literal, Optional
from litellm.litellm_core_utils.env_utils import (
get_env_float,
get_env_int,
get_env_int_or_none,
)
from litellm.litellm_core_utils.env_utils import get_env_int, get_env_int_or_none
DEFAULT_HEALTH_CHECK_PROMPT = str(os.getenv("DEFAULT_HEALTH_CHECK_PROMPT", "test from litellm"))
AZURE_DEFAULT_RESPONSES_API_VERSION = str(os.getenv("AZURE_DEFAULT_RESPONSES_API_VERSION", "preview"))
@ -1482,10 +1478,9 @@ PROXY_BUDGET_RESCHEDULER_MAX_TIME = int(os.getenv("PROXY_BUDGET_RESCHEDULER_MAX_
PROXY_BATCH_WRITE_AT = int(os.getenv("PROXY_BATCH_WRITE_AT", 10)) # in seconds, increased from 10
PROXY_CONFIG_RELOAD_INTERVAL_SECONDS = get_env_int("PROXY_CONFIG_RELOAD_INTERVAL_SECONDS", 30)
MODEL_CHANGE_PUBSUB_ENABLED = os.getenv("MODEL_CHANGE_PUBSUB_ENABLED", "true").lower() in ["true", "1"]
MODEL_CHANGE_PUBSUB_CHANNEL = os.getenv("MODEL_CHANGE_PUBSUB_CHANNEL", "litellm:model_changes")
MODEL_CHANGE_PUBSUB_POLL_TIMEOUT_SECONDS = get_env_float("MODEL_CHANGE_PUBSUB_POLL_TIMEOUT_SECONDS", 0.5)
MODEL_CHANGE_PUBSUB_RECONNECT_SECONDS = get_env_float("MODEL_CHANGE_PUBSUB_RECONNECT_SECONDS", 5.0)
MODEL_CHANGE_PUBSUB_CHANNEL = "litellm:model_changes"
MODEL_CHANGE_PUBSUB_POLL_TIMEOUT_SECONDS = 0.5
MODEL_CHANGE_PUBSUB_RECONNECT_SECONDS = 5.0
# APScheduler Configuration - MEMORY LEAK FIX
# These settings prevent memory leaks in APScheduler's normalize() and _apply_jitter() functions

15
litellm/litellm_core_utils/env_utils.py
View file

@ -21,21 +21,6 @@ def get_env_int(env_var: str, default: int) -> int:
return default
def get_env_float(env_var: str, default: float) -> float:
"""Parse an environment variable as a float, falling back to default on invalid values.
Same forgiving behaviour as `get_env_int`, so a typo in a tuning knob cannot crash
the process at import time.
"""
raw = os.getenv(env_var)
if raw is None:
return default
try:
return float(raw.strip())
except (ValueError, TypeError):
return default
def get_env_int_or_none(env_var: str) -> int | None:
"""Parse an environment variable as an integer, returning None when it is unset or unusable.

6
litellm/proxy/model_change_broadcast.py
View file

@ -25,7 +25,6 @@ from litellm._logging import verbose_proxy_logger
from litellm._uuid import uuid
from litellm.constants import (
MODEL_CHANGE_PUBSUB_CHANNEL,
MODEL_CHANGE_PUBSUB_ENABLED,
MODEL_CHANGE_PUBSUB_POLL_TIMEOUT_SECONDS,
MODEL_CHANGE_PUBSUB_RECONNECT_SECONDS,
)
@ -84,9 +83,6 @@ async def broadcast_model_change(
Tell sibling pods that the model table changed. Never raises: the write it
follows has already succeeded, and the periodic reconcile still converges.
"""
if not MODEL_CHANGE_PUBSUB_ENABLED:
return
backend = redis_cache if redis_cache is not None else _coordination_redis()
if backend is None:
return
@ -210,7 +206,7 @@ class ModelChangeSubscriberHandle:
redis_cache: RedisPubSubBackend | None,
reconcile: Callable[[], Awaitable[None]],
) -> None:
if not MODEL_CHANGE_PUBSUB_ENABLED or redis_cache is None:
if redis_cache is None:
return
self.stop()
subscriber = ModelChangeSubscriber(redis_cache=redis_cache, reconcile=reconcile)