ansible意外异常：字典更新序列元素＃0

Question

当我在命令下运行时

[ansible@] $ ansible localhost -vvv -m setup
Using /etc/ansible/ansible.cfg as config file

它给出了以下错误

 ERROR! Unexpected Exception: dictionary update sequence element #0 has length 1; 2 is required
    the full traceback was:

    Traceback (most recent call last):
      File "/usr/bin/ansible", line 92, in <module>
        exit_code = cli.run()
      File "/usr/lib/python2.6/site-packages/ansible/cli/adhoc.py", line 129, in run
        inventory = Inventory(loader=loader, variable_manager=variable_manager, host_list=self.options.inventory)
      File "/usr/lib/python2.6/site-packages/ansible/inventory/__init__.py", line 92, in __init__
        self.parse_inventory(host_list)
      File "/usr/lib/python2.6/site-packages/ansible/inventory/__init__.py", line 159, in parse_inventory
        group.vars = combine_vars(group.vars, self.get_group_variables(group.name))
      File "/usr/lib/python2.6/site-packages/ansible/inventory/__init__.py", line 527, in get_group_variables
        self._vars_per_group[groupname] = self._get_group_variables(groupname, vault_password=vault_password)
      File "/usr/lib/python2.6/site-packages/ansible/inventory/__init__.py", line 545, in _get_group_variables
        vars = combine_vars(vars, self.get_group_vars(group))
      File "/usr/lib/python2.6/site-packages/ansible/inventory/__init__.py", line 727, in get_group_vars
        return self._get_hostgroup_vars(host=None, group=group, new_pb_basedir=new_pb_basedir, return_results=return_results)
      File "/usr/lib/python2.6/site-packages/ansible/inventory/__init__.py", line 788, in _get_hostgroup_vars
        host_results = self._variable_manager.add_group_vars_file(base_path, self._loader)
      File "/usr/lib/python2.6/site-packages/ansible/vars/__init__.py", line 616, in add_group_vars_file
        data = self._load_inventory_file(path, loader)
      File "/usr/lib/python2.6/site-packages/ansible/vars/__init__.py", line 574, in _load_inventory_file
        rval.update(data)
    ValueError: dictionary update sequence element #0 has length 1; 2 is required

Answer 1

看起来你正在使用ansible <2.3并且命中issues #18843：你的一个group_vars文件中存在语法错误。

尝试升级到更新版本的ansible，错误应该会向您显示有关语法错误的更多信息。