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ci: Ensemble requests stuck indefinitely when the step max_queue_size exceeded (#8631) #8658

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Merged
mc-nv merged 1 commit into from
Feb 13, 2026
Merged

ci: Ensemble requests stuck indefinitely when the step max_queue_size exceeded (#8631) #8658

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9 changes: 6 additions & 3 deletions qa/L0_simple_ensemble/backpressure_test_models/decoupled_producer/1/model.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
# Copyright 2025, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# Copyright 2025-2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
Expand All @@ -25,6 +25,8 @@
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


import time

import numpy as np
import triton_python_backend_utils as pb_utils

Expand All @@ -38,13 +40,14 @@ def execute(self, requests):
for request in requests:
# Get input - number of responses to produce
in_tensor = pb_utils.get_input_tensor_by_name(request, "IN")
count = in_tensor.as_numpy()[0]
count = in_tensor.as_numpy().item()

response_sender = request.get_response_sender()
out_tensor = pb_utils.Tensor("OUT", np.array([[0.5]], dtype=np.float32))

# Produce 'count' responses, each with 0.5 as the output value
for i in range(count):
out_tensor = pb_utils.Tensor("OUT", np.array([0.5], dtype=np.float32))
time.sleep(0.1) # Simulate some processing delay
response = pb_utils.InferenceResponse(output_tensors=[out_tensor])
response_sender.send(response)

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5 changes: 2 additions & 3 deletions qa/L0_simple_ensemble/backpressure_test_models/decoupled_producer/config.pbtxt
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
# Copyright 2025, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# Copyright 2025-2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
Expand Down Expand Up @@ -27,7 +27,7 @@

name: "decoupled_producer"
backend: "python"
max_batch_size: 0
max_batch_size: 1

input [
{
Expand Down Expand Up @@ -55,4 +55,3 @@ instance_group [
model_transaction_policy {
decoupled: true
}

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