模型上线后，推理报错

[sevenold]

RT: 0.0.5

model config

{
  "parameters": {
    "type": "dataelem.pymodel.vllm_model",
    "decoupled": "1",
    "pymodel_type": "llm.vLLMQwen7bChat",
    "pymodel_params": "{\"temperature\": 0.0, \"stop\": [\"<|im_end|>\", \"<|im_start|>\",\"<|endoftext|>\"]}",
    "gpu_memory": "20",
    "instance_groups": "device=gpu;gpus=0",
    "reload": "1",
    "verbose": "0"
  }
}

import requests
url = "http://xxx:9001/v2.1/models/Qwen-7B-Chat/infer"

# LLM输入格式兼容openai
inp1 = {
  "model": "Qwen-7B-Chat",
  "messages": [
    {"role": "user", "content": "hello"}
   ]
}

# LLM输出格式基本兼容openai，差异: 本地模型无token统计使用信息
outp1 = requests.post(url=url, json=inp1)
print(outp1.content)

b'{"error":"expected a single response, got 2"}'

RT log

2023-12-21T08:47:57.269073390Z using_decoupled True
2023-12-21T08:48:00.018871598Z INFO 12-21 16:48:00 llm_engine.py:72] Initializing an LLM engine with config: model='./models/model_repository/Qwen-7B-Chat', tokenizer='./models/model_repository/Qwen-7B-Chat', tokenizer_mode=auto, revision=None, tokenizer_revision=None, trust_remote_code=True, dtype=torch.float16, max_seq_len=8192, download_dir=None, load_format=auto, tensor_parallel_size=1, quantization=None, seed=0)
2023-12-21T08:48:00.558397300Z WARNING 12-21 16:48:00 tokenizer.py:66] Using a slow tokenizer. This might cause a significant slowdown. Consider using a fast tokenizer instead.
2023-12-21T08:48:16.925095174Z INFO 12-21 16:48:16 llm_engine.py:207] # GPU blocks: 394, # CPU blocks: 512
2023-12-21T08:48:42.067733569Z INFO 12-21 16:48:42 llm_engine.py:624] Avg prompt throughput: 0.0 tokens/s, Avg generation throughput: 0.0 tokens/s, Running: 1 reqs, Swapped: 0 reqs, Pending: 0 reqs, GPU KV cache usage: 0.5%, CPU KV cache usage: 0.0%

2023-12-21T03:56:58Z I 1 metrics.cc:870] Collecting metrics for GPU 0: NVIDIA GeForce RTX 4090
2023-12-21T03:56:58Z I 1 metrics.cc:761] Collecting CPU metrics
2023-12-21T03:56:58Z I 1 grpc_server.cc:4822] Started GRPCInferenceService at 0.0.0.0:9000
2023-12-21T03:56:58Z I 1 http_server.cc:4446] Started HTTPService at 0.0.0.0:9001
2023-12-21T03:56:58Z I 1 http_server.cc:190] Started Metrics Service at 0.0.0.0:9002
2023-12-21T04:00:18Z I 1 model_lifecycle.cc:459] loading: Qwen-7B-Chat:1
2023-12-21T04:00:21Z I 1 python_be.cc:1767] TRITONBACKEND_ModelInstanceInitialize: Qwen-7B-Chat_0 (GPU device 0)
2023-12-21T04:00:52Z I 1 model_lifecycle.cc:693] successfully loaded 'Qwen-7B-Chat' version 1
2023-12-21T04:15:15Z E 1 http_server.cc:3554] [INTERNAL] received a response without FINAL flag
2023-12-21T04:15:29Z E 1 http_server.cc:3554] [INTERNAL] received a response without FINAL flag