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[Serving]add paddledetection serving README (#702)
add paddledetection serving README
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examples/vision/detection/paddledetection/serving/README.md
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examples/vision/detection/paddledetection/serving/README.md
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# PaddleDetection 服务化部署示例
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本文档以PP-YOLOE模型(ppyoloe_crn_l_300e_coco)为例,进行详细介绍。其他PaddleDetection模型都已支持服务化部署,只需将下述命令中的模型和配置名字修改成要部署模型的名字。
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PaddleDetection模型导出和预训练模型下载请看[PaddleDetection模型部署](../README.md)文档。
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在服务化部署前,需确认
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- 1. 服务化镜像的软硬件环境要求和镜像拉取命令请参考[FastDeploy服务化部署](../../../../../serving/README.md)
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## 启动服务
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```bash
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#下载部署示例代码
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git clone https://github.com/PaddlePaddle/FastDeploy.git
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cd FastDeploy/examples/vision/detection/paddledetection/serving
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#下载PPYOLOE模型文件和测试图片
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wget https://bj.bcebos.com/paddlehub/fastdeploy/ppyoloe_crn_l_300e_coco.tgz
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wget https://gitee.com/paddlepaddle/PaddleDetection/raw/release/2.4/demo/000000014439.jpg
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tar xvf ppyoloe_crn_l_300e_coco.tgz
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# 将配置文件放入预处理目录
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mv ppyoloe_crn_l_300e_coco/infer_cfg.yml models/preprocess/1/
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# 将模型放入 models/runtime/1目录下, 并重命名为model.pdmodel和model.pdiparams
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mv ppyoloe_crn_l_300e_coco/model.pdmodel models/runtime/1/model.pdmodel
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mv ppyoloe_crn_l_300e_coco/model.pdiparams models/runtime/1/model.pdiparams
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# 将ppdet和runtime中的ppyoloe配置文件重命名成标准的config名字
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# 其他模型比如faster_rcc就将faster_rcnn_config.pbtxt重命名为config.pbtxt
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cp models/ppdet/ppyoloe_config.pbtxt models/ppdet/config.pbtxt
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cp models/runtime/ppyoloe_runtime_config.pbtxt models/runtime/config.pbtxt
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# 注意: 由于mask_rcnn模型多一个输出,需要将后处理目录(models/postprocess)中的mask_config.pbtxt重命名为config.pbtxt
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# 拉取fastdeploy镜像(x.y.z为镜像版本号,需替换成fastdeploy版本数字)
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# GPU镜像
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docker pull paddlepaddle/fastdeploy:x.y.z-gpu-cuda11.4-trt8.4-21.10
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# CPU镜像
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docker pull paddlepaddle/fastdeploy:z.y.z-cpu-only-21.10
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# 运行容器.容器名字为 fd_serving, 并挂载当前目录为容器的 /serving 目录
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nvidia-docker run -it --net=host --name fd_serving --shm-size="1g" -v `pwd`/:/serving paddlepaddle/fastdeploy:x.y.z-gpu-cuda11.4-trt8.4-21.10 bash
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# 启动服务(不设置CUDA_VISIBLE_DEVICES环境变量,会拥有所有GPU卡的调度权限)
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CUDA_VISIBLE_DEVICES=0 fastdeployserver --model-repository=/serving/models
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```
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>> **注意**:
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>> 由于mask_rcnn模型多一个输出,部署mask_rcnn需要将后处理目录(models/postprocess)中的mask_config.pbtxt重命名为config.pbtxt
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>> 拉取镜像请看[服务化部署主文档](../../../../../serving/README.md)
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>> 执行fastdeployserver启动服务出现"Address already in use", 请使用`--grpc-port`指定grpc端口号来启动服务,同时更改客户端示例中的请求端口号.
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>> 其他启动参数可以使用 fastdeployserver --help 查看
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服务启动成功后, 会有以下输出:
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```
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......
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I0928 04:51:15.784517 206 grpc_server.cc:4117] Started GRPCInferenceService at 0.0.0.0:8001
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I0928 04:51:15.785177 206 http_server.cc:2815] Started HTTPService at 0.0.0.0:8000
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I0928 04:51:15.826578 206 http_server.cc:167] Started Metrics Service at 0.0.0.0:8002
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```
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## 客户端请求
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在物理机器中执行以下命令,发送grpc请求并输出结果
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```
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#下载测试图片
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wget https://gitee.com/paddlepaddle/PaddleDetection/raw/release/2.4/demo/000000014439.jpg
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#安装客户端依赖
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python3 -m pip install tritonclient\[all\]
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# 发送请求
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python3 paddledet_grpc_client.py
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```
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发送请求成功后,会返回json格式的检测结果并打印输出:
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```
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output_name: DET_RESULT
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[[159.93016052246094, 82.35527038574219, 199.8546600341797, 164.68682861328125],
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... ...,
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[60.200584411621094, 123.73260498046875, 108.83859252929688, 169.07467651367188]]
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```
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## 配置修改
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当前默认配置在GPU上运行Paddle引擎, 如果要在CPU或其他推理引擎上运行。 需要修改`models/runtime/config.pbtxt`中配置,详情请参考[配置文档](../../../../../serving/docs/zh_CN/model_configuration.md)
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