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[Serve][Add] Include custom autoscaling policy name in logs #57878

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Merged
abrarsheikh merged 1 commit into from
Oct 27, 2025
Merged

[Serve][Add] Include custom autoscaling policy name in logs #57878

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14 changes: 14 additions & 0 deletions python/ray/serve/_private/autoscaling_state.py
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Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,13 @@ def register(self, info: DeploymentInfo, curr_target_num_replicas: int) -> int:
self._target_capacity_direction = info.target_capacity_direction
self._policy_state = {}

# Log when custom autoscaling policy is used for deployment
if not self._config.policy.is_default_policy_function():
logger.info(
f"Using custom autoscaling policy '{self._config.policy.policy_function}' "
f"for deployment '{self._deployment_id}'."
)

return self.apply_bounds(target_num_replicas)

def on_replica_stopped(self, replica_id: ReplicaID):
Expand Down Expand Up @@ -672,6 +679,13 @@ def register(
self._policy = autoscaling_policy.get_policy()
self._policy_state = {}

# Log when custom autoscaling policy is used for application
if not autoscaling_policy.is_default_policy_function():
logger.info(
f"Using custom autoscaling policy '{autoscaling_policy.policy_function}' "
f"for application '{self._app_name}'."
)

def has_policy(self) -> bool:
return self._policy is not None

Expand Down