En-tête ELF xgboost invalide (en utilisant un pkl dans un conteneur Docker)

Question

J'ai un fichier pkl qui utilise la bibliothèque xgboost. Dans mon code, j'importer tout ce PKL et le charger:

def _init_model(self): 
    self.model = joblib.load(QueryClassifier.MODEL_FILE) 

Je suis également en cours d'exécution mon code à l'intérieur d'un conteneur Docker. J'ai exigences dans le fichier comme celui-ci:

scipy 
sklearn 
numpy 
xgboost 
pandas 
flask 

J'ai cette erreur lorsque je tente de lancer le conteneur Docker:

Traceback (most recent call last): 
    File "server.py", line 12, in <module> 
    c = classifier.QueryClassifier() 
    File "/app/classifier_controller/classifier.py", line 43, in __init__ 
    self._init_model() 
    File "/app/classifier_controller/classifier.py", line 62, in _init_model 
    self.model = joblib.load(QueryClassifier.MODEL_FILE) 
    File "/usr/local/lib/python3.5/site-packages/sklearn/externals/joblib/numpy_pickle.py", line 575, in load 
    obj = _unpickle(fobj, filename, mmap_mode) 
    File "/usr/local/lib/python3.5/site-packages/sklearn/externals/joblib/numpy_pickle.py", line 507, in _unpickle 
    obj = unpickler.load() 
    File "/usr/local/lib/python3.5/pickle.py", line 1039, in load 
    dispatch[key[0]](self) 
    File "/usr/local/lib/python3.5/pickle.py", line 1334, in load_global 
    klass = self.find_class(module, name) 
    File "/usr/local/lib/python3.5/pickle.py", line 1384, in find_class 
    __import__(module, level=0) 
    File "/usr/local/lib/python3.5/site-packages/xgboost/__init__.py", line 11, in <module> 
    from .core import DMatrix, Booster 
    File "/usr/local/lib/python3.5/site-packages/xgboost/core.py", line 112, in <module> 
    _LIB = _load_lib() 
    File "/usr/local/lib/python3.5/site-packages/xgboost/core.py", line 106, in _load_lib 
    lib = ctypes.cdll.LoadLibrary(lib_path[0]) 
    File "/usr/local/lib/python3.5/ctypes/__init__.py", line 425, in LoadLibrary 
    return self._dlltype(name) 
    File "/usr/local/lib/python3.5/ctypes/__init__.py", line 347, in __init__ 
    self._handle = _dlopen(self._name, mode) 
OSError: /usr/local/lib/python3.5/site-packages/xgboost/./lib/libxgboost.so: invalid ELF header 

Toute aide?

Answer 1

Vous devez construire xhboost.

Voir https://github.com/dmlc/xgboost/issues/463