运行时，MLFLOW项目投掷JSondecode错误

Question

我正在尝试使用MLFLOW CLI进行MLFLOW项目及其遵循教程导致错误。对于我尝试从CLI运行的任何项目，我会收到以下错误

Traceback (most recent call last):
  File "/home/rbc/.local/bin/mlflow", line 11, in <module>
    sys.exit(cli())
  File "/home/rbc/.local/lib/python3.6/site-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/home/rbc/.local/lib/python3.6/site-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/home/rbc/.local/lib/python3.6/site-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/rbc/.local/lib/python3.6/site-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/rbc/.local/lib/python3.6/site-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/home/rbc/.local/lib/python3.6/site-packages/mlflow/cli.py", line 139, in run
    run_id=run_id,
  File "/home/rbc/.local/lib/python3.6/site-packages/mlflow/projects/__init__.py", line 230, in run
    storage_dir=storage_dir, block=block, run_id=run_id)
  File "/home/rbc/.local/lib/python3.6/site-packages/mlflow/projects/__init__.py", line 88, in _run
    active_run = _create_run(uri, experiment_id, work_dir, entry_point)
  File "/home/rbc/.local/lib/python3.6/site-packages/mlflow/projects/__init__.py", line 579, in _create_run
    active_run = tracking.MlflowClient().create_run(experiment_id=experiment_id, tags=tags)
  File "/home/rbc/.local/lib/python3.6/site-packages/mlflow/tracking/client.py", line 101, in create_run
    source_version=source_version
  File "/home/rbc/.local/lib/python3.6/site-packages/mlflow/store/rest_store.py", line 156, in create_run
    response_proto = self._call_endpoint(CreateRun, req_body)
  File "/home/rbc/.local/lib/python3.6/site-packages/mlflow/store/rest_store.py", line 66, in _call_endpoint
    js_dict = json.loads(response.text)
  File "/usr/lib/python3.6/json/__init__.py", line 354, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python3.6/json/decoder.py", line 339, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python3.6/json/decoder.py", line 357, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

这是我用来启动运行的命令类型的示例，该命令直接来自教程

mlflow run https://github.com/mlflow/mlflow#examples/sklearn_elasticnet_wine -m databricks -c cluster-spec.json --experiment-id 72647065958042 -P alpha=2.0 -P l1_ratio=0.5

我将错误追溯到涉及MLFLOW尝试开始运行时空空的东西，但是我可以使用我要连接的数据链球核对环境成功运行MLFlow实验，因此我不确定问题所在，我'm在Ubuntu上运行mlflow 0.9.1 18.04

Answer 1

不确定您是否解决了问题，但这是我修复的方式：

1. databricks-cli与以下配置无问题：

   host = https://xxx.databricks.net/?o=<org_id>
   token=dapixxx
   

2. ，但mlflow对此并不高兴，将其更改为：

   host = https://xxx.databricks.net
   username = token
   password = dapixxx