鹏城实验室鲲鹏920上PaddleHub安装
在鹏城实验室鲲鹏920上安装PaddleHub，执行pip install paddlehub结果报错：

error: libhdf5.so: cannot open shared object file: No such file or directory

  ----------------------------------------

  ERROR: Failed building wheel for h5py

Failed to build onnx h5py

ERROR: Could not build wheels for onnx, h5py, which is required to install pyproject.toml-based projects

手工安装python3-h5py

pip install python3-h5py

安装之后不行，再安装这个：

pip install pkg-config libhdf5-dev

哈哈，安装好啦！结果没高兴两分钟，又看到了失败的显示：

Successfully built h5py

Failed to build onnx

完毕之后测试，import onnx是ok的，import h5py是报错的，

PaddleHub还是没有安装成功。

也就是在鹏城云服务器上，暂时h5py无法安装。既然pip安装失败，就改变策略：

使用下载代码安装PaddleHub
使用下载代码，本地安装的方式，先下载代码并安装需要的库：

  672  git clone https://github.com/PaddlePaddle/Paddlehub

  677  cd Paddlehub/

pip -r requirements.txt -i https://mirror.baidu.com/pypi/simple

结果报错：

Building wheel for shellcheck-py (setup.py) ... error

  ERROR: Command errored out with exit status 1:

   command: /home/skywalk/venv/bin/python3.8 -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-drp20xiu/shellcheck-py_843a995c85db4fcfb5c79e0d59eb4ee5/setup.py'"'"'; __file__='"'"'/tmp/pip-install-drp20xiu/shellcheck-py_843a995c85db4fcfb5c79e0d59eb4ee5/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-d710rul3

       cwd: /tmp/pip-install-drp20xiu/shellcheck-py_843a995c85db4fcfb5c79e0d59eb4ee5/

  Complete output (4 lines):

  running bdist_wheel

  running build

  running fetch_binaries

  error: Remote end closed connection without response

  ----------------------------------------

  ERROR: Failed building wheel for shellcheck-py

  Running setup.py clean for shellcheck-py

  Building wheel for future (setup.py) ... done

  Created wheel for future: filename=future-0.18.2-py3-none-any.whl size=491058 sha256=56ef22333c65b1a5821688c5276aabcd54130c58e3c943f53aeb420d5216f2bc

  Stored in directory: /home/skywalk/.cache/pip/wheels/bb/b4/25/d4ed0b0183f33df9bdfb686bbb497a8e991dc982f1dc769246

Successfully built easydict h5py jieba seqeval future

Failed to build onnx shellcheck-py

ERROR: Could not build wheels for onnx, which is required to install pyproject.toml-based projects

看看到底是哪个库没有装上啊？

一个一个用pip安装的方式测试，发现：

pip install paddle2onnx

Collecting paddle2onnx

  Using cached paddle2onnx-0.8.2-py3-none-any.whl (80 kB)

Requirement already satisfied: six in /home/skywalk/venv/lib/python3.8/site-packages (from paddle2onnx) (1.16.0)

Collecting onnx<=1.9.0

  Using cached onnx-1.9.0.tar.gz (9.8 MB)

  Installing build dependencies ... done

  Getting requirements to build wheel ... done

^C  Installing backend dependencies ... canceled

也就是paddle2onnx那里需要onnx<=1.9.0

但是onnx低版本安装不上，导致paddle2onnx安装不上，进而导致PaddleHub安装不成功。

跑到github下载paddle2onnx的源代码，准备编译安装：

修改setup.py文件，修改onnx的版本需求

install_requires=['six', 'protobuf', 'onnx<=1.9.0'],修改成：

install_requires=['six', 'protobuf', 'onnx']

  700  git clone https://hub.fastgit.org/PaddlePaddle/Paddle2ONNX

  701  cd Paddle2ONNX/

  705  python setup.py install

安装完成paddle2onnx之后，再次pip安装paddlehub

哇，成功安装啦！

Successfully installed Babel-2.9.1 Flask-Babel-2.0.0 Pillow-8.2.0 backports.entry-points-selectable-1.1.0 bce-python-sdk-0.8.62 cfgv-3.3.1 chardet-3.0.4 cycler-0.11.0 dill-0.3.4 distlib-0.3.3 flake8-4.0.1 future-0.18.2 gunicorn-20.1.0 h5py-3.5.0 identify-2.3.4 idna-2.10 jieba-0.42.1 joblib-1.1.0 kiwisolver-1.3.2 matplotlib-3.4.3 mccabe-0.6.1 multiprocess-0.70.12.2 nodeenv-1.6.0 numpy-1.19.5 paddlefsl-1.0.0 paddlehub-2.1.1 paddlenlp-2.1.1 pandas-1.3.4 platformdirs-2.4.0 pre-commit-2.15.0 pycodestyle-2.8.0 pycryptodome-3.11.0 pyflakes-2.4.0 python-dateutil-2.8.2 pytz-2021.3 pyyaml-6.0 pyzmq-22.3.0 rarfile-4.0 requests-2.24.0 scikit-learn-1.0.1 scipy-1.7.2 seqeval-1.2.2 shellcheck-py-0.7.2.1 threadpoolctl-3.0.0 toml-0.10.2 tqdm-4.27.0 urllib3-1.25.11 virtualenv-20.10.0 visualdl-2.2.1

从这次安装paddlehub，终于深刻体会到了paddlehub和paddleserving的区别，一个是开发用的，装了一大堆东西，一个是部署用的，理论上应该不会装这么多东西。

而且paddlehub在arm上面装有坑，我是用修改paddle2onnx的onnx的版本需求（去掉低版本需求）解决的。

安装好之后，PaddleHub开服务：

nohup hub serving start -m deoldify &

真香！

总结一下：

PaddleHub是为了快速验证项目而存在的，重点在于能快速实现想法，所以安装包比较臃肿，在鲲鹏920上安装不太顺利。同时PaddleHub的负载能力也较Paddle Serving低一些。如果安装不上，可以看下是哪个相关库安装的卡住了，手工安装上即可。实在不行，手工修改依赖库信息即可。

总体而言，想快速验证想法，还是用PaddleHub最快最方便！

PaddleHub黑白照片上色测试链接：http://decs.pcl.ac.cn:3625/aipic.html

具体部署方法见这个项目：https://aistudio.baidu.com/aistudio/projectdetail/2559081

部署服务器由鹏城实验室：https://dw.pcl.ac.cn/#/home/index 提供服务。

再次感谢飞桨，感谢鹏城实验室。