连接到dask.distributed群集时出现Pickle错误

2024-03-29 18:35:28

这是我的简单代码.尝试运行我的第一个程序.

from dask.distributed import Client
client = Client('192.168.1.102:8786')


def inc(x):
    return x + 1

x = client.submit(inc, 10)
print(x.result())

尝试使用以下命令运行此代码时：

$python3 filename.py

我正在解决此错误：

/usr/local/lib/python3.4/dist-packages/distributed/protocol/pickle.py
- INFO - Failed to serialize <function inc at 0x7f678ad05840> Traceback (most recent call last):   File
"/usr/local/lib/python3.4/dist-packages/distributed/protocol/pickle.py",
line 33, in dumps
    return cloudpickle.dumps(x, protocol=pickle.HIGHEST_PROTOCOL) AttributeError: 'module' object has no attribute 'dumps'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):   File
 "/usr/local/lib/python3.4/dist-packages/distributed/protocol/pickle.py",
 line 43, in dumps
    return cloudpickle.dumps(x, protocol=pickle.HIGHEST_PROTOCOL) AttributeError: 'module' object has no attribute 'dumps' Traceback
 (most recent call last):   File
 "/usr/local/lib/python3.4/dist-packages/distributed/protocol/pickle.py",
 line 33, in dumps
     return cloudpickle.dumps(x, protocol=pickle.HIGHEST_PROTOCOL) AttributeError: 'module' object has no attribute 'dumps'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):   File "dis.py", line 8, in
 <module>
    x = client.submit(inc, 10)   File "/usr/local/lib/python3.4/dist-packages/distributed/client.py", line
 643, in submit
     loose_restrictions, priority={skey: 0})   File "/usr/local/lib/python3.4/dist-packages/distributed/client.py", line
 1235, in _graph_to_futures
     'tasks': valmap(dumps_task, dsk3),   File "/usr/local/lib/python3.4/dist-packages/toolz/dicttoolz.py", line 84,
 in valmap
     rv.update(zip(iterkeys(d), map(func, itervalues(d))))   File "/usr/local/lib/python3.4/dist-packages/distributed/worker.py", line
 812, in dumps_task
     return {'function': dumps_function(task[0]),   File "/usr/local/lib/python3.4/dist-packages/distributed/worker.py", line
 779, in dumps_function
     b = dumps(func)   File "/usr/local/lib/python3.4/dist-packages/distributed/protocol/pickle.py",
 line 43, in dumps
     return cloudpickle.dumps(x, protocol=pickle.HIGHEST_PROTOCOL) AttributeError: 'module' object has no attribute 'dumps'

解决方法:

通常,酸洗错误是您的Dask.distributed网络中某些元素(工作人员,调度程序或客户端)具有Python版本不匹配的迹象.也许您的工作人员在没有意识到的情况下正在Python 2下运行？

该错误特别说明cloudpickle库没有dumps方法,这很奇怪.据我所知,cloudpickle一直具有转储功能.您的环境中可能有一个奇怪的cloudpickle库,还是一个很旧的版本？

如果您只是尝试,也可以通过省略调度程序的地址,在同一过程中启动本地集群

from dask.distributed import Client

# client = Client('scheduler-address:8786')
client = Client()  # create local "cluster"

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