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(feat) proxy: add weighted shuffle + set cooldown to 1s

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ishaan-jaff 2023-11-29 16:05:11 -08:00
parent 2bbd9c063d
commit 8a398a1777
1 changed files with 16 additions and 4 deletions
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20
litellm/router.py
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@ -71,7 +71,7 @@ class Router:
fallbacks: List = [],
allowed_fails: Optional[int] = None,
context_window_fallbacks: List = [],
routing_strategy: Literal["simple-shuffle", "least-busy", "usage-based-routing", "latency-based-routing"] = "simple-shuffle") -> None:
routing_strategy: Literal["simple-shuffle", "least-busy", "usage-based-routing", "latency-based-routing", "weighted-shuffle"] = "simple-shuffle") -> None:
self.set_verbose = set_verbose
if model_list:
@ -635,13 +635,13 @@ class Router:
else:
cached_value = cached_value + [deployment]
# save updated value
self.cache.set_cache(value=cached_value, key=cooldown_key, ttl=60)
self.cache.set_cache(value=cached_value, key=cooldown_key, ttl=1)
except:
cached_value = [deployment]
# save updated value
self.cache.set_cache(value=cached_value, key=cooldown_key, ttl=60)
self.cache.set_cache(value=cached_value, key=cooldown_key, ttl=1)
else:
self.failed_calls.set_cache(key=deployment, value=updated_fails, ttl=60)
self.failed_calls.set_cache(key=deployment, value=updated_fails, ttl=1)
def _get_cooldown_deployments(self):
"""
@ -929,6 +929,18 @@ class Router:
elif self.routing_strategy == "simple-shuffle":
item = random.choice(healthy_deployments)
return item or item[0]
elif self.routing_strategy == "weighted-shuffle":
rpms = [m["litellm_params"].get("rpm") for m in healthy_deployments]
self.print_verbose(f"\nrpms {rpms}")
total_rpm = sum(rpms)
weights = [rpm / total_rpm for rpm in rpms]
self.print_verbose(f"\n weights {weights}")
# Perform weighted random pick
selected_index = random.choices(range(len(rpms)), weights=weights)[0]
self.print_verbose(f"\n selected index, {selected_index}")
deployment = healthy_deployments[selected_index]
return deployment or deployment[0]
elif self.routing_strategy == "latency-based-routing":
returned_item = None
lowest_latency = float('inf')